id
int32 0
32.5k
| code
stringlengths 95
8.4k
| label
stringclasses 65
values |
|---|---|---|
13,400 |
/*
* ????????.cpp
*
* Created on: 2012-10-14
* Author: Administrator
*/
int main()
{
int n,i;
float a[100],b[100],c[100];
double x1,x2,delta,x;
cin >> n;
for (i=1;i<=n;i++)
{
cin >> a[i] >> b[i] >> c[i];
}
for (i=1;i<=n;i++)
{
cout << fixed << setprecision(5);
{
delta=b[i]*b[i]-4*a[i]*c[i];
x1=(-b[i] + sqrt(delta))/(2*a[i]);
x2=(-b[i] - sqrt(delta))/(2*a[i]);
if (delta==0)
{
cout << "x1=x2=" << x1 << endl;
}
if (delta>0)
{
cout << "x1=" << x1 << ";" << "x2=" << x2 <<endl;
}
if (delta<0)
{
x=(sqrt(-delta))/(2*a[i]);
cout << "x1=" << (-b[i]/(2*a[i])==0?b[i]/(2*a[i]):-b[i]/(2*a[i])) <<"+" << x << "i" <<";" << "x2=" << (-b[i]/(2*a[i])==0?b[i]/(2*a[i]):-b[i]/(2*a[i])) <<"-" << x << "i" <<endl;
}
}
}
return 0;
}
|
27
|
13,401 |
int main(int argc, char* argv[])
{
int n,i;
double a,b,c,x1,x2,disc,p,q;
scanf("%d", &n);
for(i=0;i<n;i++)
{
scanf("%lf %lf %lf", &a, &b, &c);
disc=b*b-4*a*c;
if(disc>0)
{
q=sqrt(disc);
x1=((-1)*b+q)/(2*a);
x2=((-1)*b-q)/(2*a);
printf("x1=%.5lf;x2=%.5lf\n", x1, x2);
}
else if(disc==0)
{
p=(-1)*b/(2*a);
printf("x1=x2=%.5lf\n",p);
}
else if(disc<0)
{
q=sqrt((-1)*disc)/(2*a);
p=(-1)*b/(2*a);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n", p, q, p, q);
}
}
return 0;
}
|
27
|
13,402 |
int main(int argc, char* argv[])
{
int n,i;
scanf("%d",&n);
double a,b,c,x1,x2,t,t1,t2;
for(i=0;i<n;i++){
scanf("%lf %lf %lf",&a,&b,&c);
t=b*b-4*a*c;
if(t>0){
printf("x1=%.5lf;x2=%.5lf\n",x1=(-b+sqrt(t))/(2*a),x2=(-b-sqrt(t))/(2*a));
}
else if(t==0)
printf("x1=x2=%.5lf\n",x1=-b/(2*a));
else if(t<0){
t=fabs(t);
t1=-b/(2*a);
t2=sqrt(t)/(2*a);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",t1,t2,t1,t2);
}
}
return 0;
}
|
27
|
13,403 |
//********************************
//*???????????? **
//*?????? 1300012934 **
//*???2013.10.14 **
//********************************
int main()
{
int n ;
double a , b , c , x1 , x2 , p , i ,d ;//p ?i?????????????d???????
cin >> n;
cout << fixed << setprecision (5); //????????
for (int k = 1 ; k <= n ; k++)
{
cin >> a >> b >> c ;
d = b * b - 4 * a * c ;
if ( d < 0 ) //?????
{
i = sqrt (-d) / ( 2 * a ) ;
p = - b / ( 2 * a ) ;
if ( p == - 0 )
p = 0;
cout << "x1=" << p << "+" << i << "i;x2="<< p << "-" << i << "i" << endl;
}
else
{
if ( d > 0 ) //????????
{
x1 = ( -b + sqrt ( d ) ) / ( 2 * a ) ;
x2 = ( -b - sqrt ( d ) ) / ( 2 * a ) ;
cout << "x1=" << x1 << ";x2=" << x2 << endl;
}
else //????????
cout << "x1=x2=" << -b / ( 2 * a ) << endl;
}
}
return 0;
}
|
27
|
13,404 |
double fuhao(double x)
{
double result;
if ((x<0)&&(0-x<0.00001))
result=0;
else result=x;
return result;
}
int main()
{
double a[100],b[100],c[100],x1[100],x2[100],delta[100];
int n,i,decide[100];
scanf("%d",&n);
for (i=0;i<n;i++)
{
scanf("%lf %lf %lf",&a[i],&b[i],&c[i]);
delta[i]=b[i]*b[i]-4*a[i]*c[i];
//printf("input done,delta=%f\n",delta[i]);
}
for (i=0;i<n;i++)
{
if (delta[i]>0) decide[i]=1;
else
if (delta[i]<0) decide[i]=-1;
else decide[i]=0;
if (decide[i]==1)
{
printf("x1=%.5f;x2=%.5f\n",(fuhao((0-b[i]+sqrt(delta[i]))/(2*a[i]))),(fuhao((0-b[i]-sqrt(delta[i]))/(2*a[i]))));
}
else
if (decide[i]==0) printf("x1=x2=%.5f\n",fuhao((0-b[i])/(2*a[i])));
else printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",fuhao((0-b[i])/(2*a[i])),(sqrt(-delta[i]))/(2*a[i]),fuhao((0-b[i])/(2*a[i])),((sqrt(-delta[i]))/(2*a[i])));
}
return 0;
}
|
27
|
13,405 |
int main(int argc, char* argv[])
{
int n, j;
double x1, x2, s, t, a, b, c;
scanf("%d", &n);
for(j=1;j<=n;j++)
{
scanf("%lf%lf%lf", &a, &b, &c);
if(b*b-4*a*c>0)
{
x1 = (-b + sqrt(b*b-4*a*c))/(2*a);
x2 = (-b - sqrt(b*b-4*a*c))/(2*a);
printf("x1=%.5lf;x2=%.5lf\n", x1, x2);
}
if(b*b-4*a*c==0)
{
x1=-b/(2*a);
printf("x1=x2=%.5lf\n",x1);
}
if(b*b-4*a*c<0)
{
s=-b/(2*a);
t=sqrt(4*a*c-b*b)/(2*a);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n", s, t, s, t);
}
}
return 0;
}
|
27
|
13,406 |
//****************************
//??????????????
//?????? 1300012849
//???2013?10?14?
//****************************
int main ()
{
int n , i ; //??????n
double a , b , c ; //????????????????a?b?c
double delta , x1 , x2 , k1 , k2; //????delta?????x1,x2 ?k1, k2?????????????
cin >> n ; //????????n
for ( i = 1 ; i <= n ; i++ ) //?n???
{
cin >> a >> b >> c ; //????a?b?c
delta = b * b - 4 * a * c ; //?????
if ( delta > 0 ) //??????0????????????????
{
x1 = ( -b + sqrt ( delta ) ) / ( 2 * a ) ;
x2 = ( -b - sqrt ( delta ) ) / ( 2 * a ) ;
if ( x1 < 0.000001 && x1 > -0.000001) //???????-0.00000??0.00000????
{x1 = 0 ;}
cout<< fixed ; //???????????????5??????????
cout << setprecision(5) << "x1="<< x1 <<";"<< "x2="<< x2 << endl ;
}
else if ( delta == 0 ) //??????0????
{
x1 = -b / ( 2 * a ) ;
x2 = -b / ( 2 * a ) ;
if ( x1 < 0.000001 && x1 > -0.000001)
x1 = 0 ;
if ( x2 < 0.000001 && x1 > -0.000001)
x2 = 0 ;
cout << fixed ;
cout << setprecision(5) << "x1=x2="<< x1 << endl ;
}
else if ( delta < 0 ) //??????0??????????
{
k1 = -b / ( 2 * a ) ;
k2 = sqrt ( -delta) / ( 2 * a ) ;
if ( k1 < 0.000001 && k1 > -0.000001)
k1 = 0 ;
if ( k2 < 0.000001 && k1 > -0.000001)
k2 = 0 ;
cout << fixed;
cout <<setprecision(5)<<"x1="<< k1 << "+"<< k2 << "i;x2="<<k1 <<"-"<< k2 << "i"<<endl ;
}
}
return 0 ; //?????????0
}
|
27
|
13,407 |
main()
{
int n,i;
double a,b,c,d;
scanf("%d",&n);
for(i=1;i<=n;i++){
scanf("%lf%lf%lf",&a,&b,&c);
d=b*b-4*a*c;
if(d>0)
printf("x1=%.5f;x2=%.5f\n",(-b+sqrt(d))/2/a,(-b-sqrt(d))/2/a);
else
if(d==0)
printf("x1=x2=%.5f\n",-b/2/a);
else
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",-b/2/a,sqrt(-d)/2/a,-b/2/a,sqrt(-d)/2/a);
}
return 0;
}
|
27
|
13,408 |
int main()
{
double i,n,x1,x2;
float a,b,c,x,y;
cin>>n;
for(i=1;i<=n;i++)
{ cin>>a>>b>>c;
if(b==0)
{
if((b*b-4*a*c)>0)
{ x1 = (b + sqrt(b*b-4*a*c))/(2*a);
x2 = (b - sqrt(b*b-4*a*c))/(2*a);
printf("x1=%.5f;",x1);
printf("x2=%.5f\n",x2);
}
else if((b*b-4*a*c) == 0)
{ x1 = (b + sqrt(b*b-4*a*c))/(2*a);
x2 = (b - sqrt(b*b-4*a*c))/(2*a);
printf("x1=x2=%.5f\n",x1);
}
else
{
x = (b /(2*a));
y = (sqrt(-b*b+4*a*c))/(2*a);
printf("x1=%.5f+%.5fi;",x,y);
printf("x2=%.5f-%.5fi\n",x,y);
}
}
else
{
if((b*b-4*a*c)>0)
{ x1 = (-b + sqrt(b*b-4*a*c))/(2*a);
x2 = (-b - sqrt(b*b-4*a*c))/(2*a);
printf("x1=%.5f;",x1);
printf("x2=%.5f\n",x2);
}
else if((b*b-4*a*c) == 0)
{ x1 = (-b + sqrt(b*b-4*a*c))/(2*a);
x2 = (-b - sqrt(b*b-4*a*c))/(2*a);
printf("x1=x2=%.5f\n",x1);
}
else
{
x = (-b /(2*a));
y = (sqrt(-b*b+4*a*c))/(2*a);
printf("x1=%.5f+%.5fi;",x,y);
printf("x2=%.5f-%.5fi\n",x,y);
}
}
}
return 0;
}
|
27
|
13,409 |
int main()
{int n,j;
double a,b,c,x1,x2,t,m,p;
scanf("%d",&n);
for(j=1;j<=n;j++)
{ scanf("%lf %lf %lf",&a,&b,&c);
t=b*b-4*a*c;
m=-b/(2*a);
if(t>0.0000001)
{ p=sqrt(t)/(2*a);
x1=m+p;
x2=m-p;
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
else
if(fabs(t)<=0.0000001)
{x1=x2=m;
printf("x1=x2=%.5lf\n",x1);
}
else
if(t<-0.0000001)
{p=sqrt(-t)/(2*a);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",m,p,m,p);}
}return 0;
}
|
27
|
13,410 |
int main()
{
int n;
double a,b,c,x1,x2,r1,r2,i1;
cin>>n;
while(n--)
{
cin>>a>>b>>c;
if(b*b-4*a*c>0)
{
r1=(-b + sqrt(b*b-4*a*c))/(2*a);
r2=(-b - sqrt(b*b-4*a*c))/(2*a);
x1=r1>r2?r1:r2;
x2=r1<r2?r1:r2;
cout<<fixed<<setprecision(5)<<"x1="<<x1<<";x2="<<x2<<endl;
}
else if(b*b-4*a*c<0)
{
i1=sqrt(-b*b+4*a*c)/(2*a);
cout<<fixed<<setprecision(5)<<"x1="<<-b/(2*a)<<"+"<<fabs(i1)
<<"i;x2="<<-b/(2*a)<<"-"<<fabs(i1)<<"i"<<endl;
}
else
{
x1=-b/(2*a);
cout<<fixed<<setprecision(5)<<"x1=x2="<<x1<<endl;
}
}
return 0;
}
|
27
|
13,411 |
//?????????
int main()
{
int n, i;
double a, b, c, x1, x2, real, imaginary;
scanf ("%d", &n);
for (i=1; i<=n; i++){
scanf("%lf %lf %lf", &a, &b, &c);
if((b*b-4*a*c)>0){
x1=(-b+sqrt(b*b-4*a*c))/(2*a);
x2=(-b-sqrt(b*b-4*a*c))/(2*a);
printf("x1=%.5lf;x2=%.5lf\n", x1, x2);
}
else if((b*b-4*a*c)==0){
x1=(-b+sqrt(b*b-4*a*c))/(2*a);
printf("x1=x2=%.5lf\n", x1);
}
else{
imaginary=(sqrt(-b*b+4*a*c))/(2*a);
real=(-b/(2*a))+1-1;
if(imaginary>=0){
printf("x1=%.5lf+%.5lfi;", real, imaginary);
printf("x2=%.5lf-%.5lfi\n", real, imaginary);
}
else{
imaginary=(-imaginary);
printf("x1=%.5lf-%.5lfi;", real, imaginary);
printf("x2=%.5lf+%.5lfi\n", real, imaginary);
}
}
}
return 0;
}
|
27
|
13,412 |
main ()
{ int n,i;
double a[100],b[100],c[100],delta,x1,x2,x_a,x_b;
scanf ("%d",&n);
for (i=1;i<=n;i++)
{
scanf("%lf %lf %lf",&a[i],&b[i],&c[i]);
delta=b[i]*b[i]-4*a[i]*c[i];
if (delta > 0)
{x1 = (-b[i] + sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]) ;
x2 = (-b[i] - sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]) ;
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);}
else if (delta == 0)
{x1 = (-b[i])/(2*a[i]);
printf("x1=x2=%.5lf\n",x1);}
else
{x_a = (-b[i])/(2*a[i]);
x_b = sqrt(-delta)/(2*a[i]);
if (x_a == -0)
{x_a = 0;}
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",x_a,x_b,x_a,x_b);
}
}
}
|
27
|
13,413 |
main()
{
double x1,x2,a,b,c;
int n,i;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%lf %lf %lf",&a,&b,&c);
if(b*b-4*a*c<0)
{ if(b==0)
{ x1=(sqrt(4*a*c-b*b))/(2*a);
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",b,x1,b,x1);}
else
{
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",-b/(2*a),(sqrt(4*a*c-b*b))/(2*a),-b/(2*a),(sqrt(4*a*c-b*b))/(2*a));
} }
else if(sqrt(b*b-4*a*c)==0)
{printf("x1=x2=%.5f\n",(-b)/(2*a));}
else
{x1 = (-b + sqrt(b*b-4*a*c))/(2*a);
x2 = (-b - sqrt(b*b-4*a*c))/(2*a);
printf("x1=%.5f;x2=%.5f\n",x1,x2);}
}
}
|
27
|
13,414 |
int main()
{
double a, b, c,d,e,g,x1,x2;
int n,i;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%lf%lf%lf",&a,&b,&c);
d=(-b)/(2*a) ;
e=(sqrt(fabs(4*a*c-b*b)))/(2*a);
g=(sqrt(fabs(4*a*c-b*b)))/(2*a);
if((b*b-4*a*c)>0)
{
x1=d+e;
x2=d-g;
printf("x1=%.5lf;",x1);
printf("x2=%.5lf\n",x2);
}
else if((b*b-4*a*c)==0)
{
x1=x2=d;
printf("x1=x2=%.5lf\n",d);
}
else if((4*a*c-b*b)>0)
{
printf("x1=%.5lf+%.5lfi;",d,e);
printf("x2=%.5lf-%.5lfi\n",d,g);
}
}
return 0;
}
|
27
|
13,415 |
int main(){
int n,m;
float a,b,c;
double z,x,y,d,e,f;
scanf("%d",&n);
for(m=0;m<n;m++){
scanf("%f %f %f",&a,&b,&c);
z=b*b-4*a*c;
if(z>0) {
x=(-b+sqrt(z))/(2*a);
if(x<0.0001&&x>-0.0001) x=0.00000;
y=(-b-sqrt(z))/(2*a);
printf("x1=%.5f;x2=%.5f\n",x,y);};
if(z==0) {
f=(-b)/(2*a);
printf("x1=x2=%.5f\n",f);};
if(z<0) {
d=sqrt(-z)/(2*a);
if(b==0) e=0;
if(b!=0) e=(-b)/(2*a);
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",e,d,e,d);};
}
}
|
27
|
13,416 |
int main()
{
int i,n;
double a[100],b[100],c[100];
cin>>n;
for(i=0;i<n;i++)
{
cin>>a[i]>>b[i]>>c[i];
}
for(i=0;i<n;i++)
{
if((b[i]*b[i]-4*a[i]*c[i])>0)
cout<<"x1="<<fixed<<setprecision(5)<<(-b[i]+sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i])<<";x2="<<fixed<<setprecision(5)<<(-b[i]-sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]);
if((b[i]*b[i]-4*a[i]*c[i])==0)
cout<<"x1=x2="<<fixed<<setprecision(5)<<-b[i]/(2*a[i]);
if((b[i]*b[i]-4*a[i]*c[i])<0)
{
if(b[i]==0)
cout<<"x1="<<"0.00000"<<"+"<<fixed<<setprecision(5)<<sqrt(4*a[i]*c[i]-b[i]*b[i])/(2*a[i])<<"i;x2="<<"0.00000"<<"-"<<fixed<<setprecision(5)<<sqrt(4*a[i]*c[i]-b[i]*b[i])/(2*a[i])<<"i";
else
cout<<"x1="<<fixed<<setprecision(5)<<-b[i]/(2*a[i])<<"+"<<fixed<<setprecision(5)<<sqrt(4*a[i]*c[i]-b[i]*b[i])/(2*a[i])<<"i;x2="<<fixed<<setprecision(5)<<-b[i]/(2*a[i])<<"-"<<fixed<<setprecision(5)<<sqrt(4*a[i]*c[i]-b[i]*b[i])/(2*a[i])<<"i";
}
cout<<endl;
}
return 0;
}
|
27
|
13,417 |
int main()
{
int n,i;
double a[100],b[100],c[100];
double x1[100],x2[100];
double s[100],t[100];
scanf("%d",&n);
for (i=0;i<n;i++)
{
scanf("%lf%lf%lf",&a[i],&b[i],&c[i]);
if (b[i]*b[i]-4*a[i]*c[i]>0)
{
x1[i]=(-b[i] + sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]);
x2[i]=(-b[i] - sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]);
}
if (b[i]*b[i]-4*a[i]*c[i]==0)
{
x1[i]=x2[i]=(-b[i])/(2*a[i]);
}
if (b[i]*b[i]-4*a[i]*c[i]<0)
{
s[i]=-b[i]/(2*a[i]);
t[i]=(sqrt(-(b[i]*b[i]-4*a[i]*c[i])))/(2*a[i]);
}
}
for (i=0;i<n;i++)
{
if (b[i]*b[i]-4*a[i]*c[i]>0)
printf("x1=%.5lf;x2=%.5lf\n",x1[i],x2[i]);
if (b[i]*b[i]-4*a[i]*c[i]==0)
printf("x1=x2=%.5lf\n",x1[i]);
if (b[i]*b[i]-4*a[i]*c[i]<0)
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",s[i],t[i],s[i],t[i]);
}
return 0;
}
|
27
|
13,418 |
int main()
{int n,i;
double a,b,c,x1,x2;
cin>>n;
for (i=1;i<=n;i++)
{cin>>a>>b>>c;
if ((b*b-4*a*c)>0) {
x1=(-b+sqrt(b*b-4*a*c))/(2*a);x2=(-b-sqrt(b*b-4*a*c))/(2*a);
cout<<"x1=";
printf("%.5f",x1);
cout<<";x2=";
printf("%.5f",x2);cout<<endl;} else
if (b*b-4*a*c==0){x1=(-b+sqrt(b*b-4*a*c))/(2*a);
cout<<"x1=x2=";printf("%.5f",x1);cout<<endl;}else
{x1=-b/(2*a);x2=(sqrt(4*a*c-b*b))/(2*a);
if (x2<0) x2=-x2;
if (x1==-0) x1=0;
cout<<"x1=";printf("%.5f",x1);cout<<"+";printf("%.5f",x2);cout<<"i;";
cout<<"x2=";printf("%.5f",x1);cout<<"-";printf("%.5f",x2);cout<<"i"<<endl;
}
}
}
|
27
|
13,419 |
/**
????6
? ?????
? ??10.12
? ???????????
*/
int main()
{
int n; // ?????????n
double a, b, c; // ????????a,b,c
double x1, x2; // ????????x1,x2
cin >> n; // ??n
for(int i=1 ; i<=n ; i++) // ????
{
cin >> a >> b >> c; // ??a,b,c
if(b * b - 4 * a * c < 0) // ????????
{
cout << fixed;
// ????????????????i???
if(b != 0)
{
cout << "x1=" << setprecision(5) << -b/(2*a) << "+" ;
cout << setprecision(5) << sqrt(4 * a * c- b * b) / (2*a) << "i;";
cout << "x2=" << setprecision(5) << -b/(2*a) << "-" ;
cout << setprecision(5) << sqrt(4 * a * c- b * b) / (2*a) << "i" << endl;
}
//???????????????????????
if(b == 0)
{
cout << "x1=" << setprecision(5) << b/(2*a) << "+" ;
cout << setprecision(5) << sqrt(4 * a * c- b * b) / (2*a) << "i;";
cout << "x2=" << setprecision(5) << b/(2*a) << "-" ;
cout << setprecision(5) << sqrt(4 * a * c- b * b) / (2*a) << "i" << endl;
}
}
if (b * b - 4 * a * c == 0)
{ x1 = -b / (2 * a);
cout << fixed;
// ?????0??x1,x2??
cout << "x1=x2=" << setprecision(5) <<x1 << endl;
}
if (b * b - 4 * a * c > 0)
{
x1 = (-b + sqrt(b * b - 4 * a * c)) / (2 * a);
x2 = (-b - sqrt(b * b - 4 * a * c)) / (2 * a);
cout << fixed;
// ????????????x1,x2
cout << "x1=" << setprecision(5) << x1 << ";" ;
cout << "x2=" << setprecision(5) << x2 << endl;
}
}
return 0;
}
|
27
|
13,420 |
int main()
{ double a,b,c,x1,x2,t1,t2;
int i,j,n;
scanf("%d",&n);
for(i=1;i<n+1;i++)
{scanf ("%lf %lf %lf",&a,&b,&c);
x1 = (-b + sqrt(b*b-4*a*c))/(2*a);
x2 = (-b - sqrt(b*b-4*a*c))/(2*a);
if (b*b-4*a*c<0) printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",-b/(2*a)+0,sqrt(-(b*b-4*a*c))/(2*a),-b/(2*a)+0,sqrt(-(b*b-4*a*c))/(2*a));
else
if (x1==x2) printf("x1=x2=%.5f\n",x1);
else
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
return 0;
}
|
27
|
13,421 |
int main()
{
int n,i;
double a,b,c,d,m,k;
scanf("%d",&n);
for(i=1;i<=n;i++)
{
scanf("%lf%lf%lf",&a,&b,&c);
d=b*b-4*a*c;
if(d==0)
{
m=-b/2/a;
printf("x1=x2=%.5lf\n",m);
}
else if(d>0)
{
m = (-b + sqrt(b*b-4*a*c))/(2*a);
k = (-b - sqrt(b*b-4*a*c))/(2*a);
printf("x1=%.5lf;x2=%.5lf\n",m,k);
}
else
{
m=-b/2/a;
k=sqrt(-d)/2/a;
if(m==0)m=0;
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",m,k,m,k);
}
}
return 0;
}
|
27
|
13,422 |
int main()
{
int n;
cin>>n;//?????????
int i;
double a,b,c;
double x1,x2;
for(i=0;i<n;i++)
{
cin>>a>>b>>c;
if(b*b-4*a*c>0)//??????0?????????
{
x1 = (-b + sqrt(b*b-4*a*c))/(2*a) ;
x2 = (-b - sqrt(b*b-4*a*c))/(2*a) ;
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
else if(b*b-4*a*c==0)//?????0???????
{
x1 = (-b + sqrt(b*b-4*a*c))/(2*a) ;
printf("x1=x2=%.5f\n",x1);
}
else if(b*b-4*a*c<0)//?????0??????????
{
if(fabs(b)<1e-6) //b?0?????????
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",(b)/(2*a), sqrt(4*a*c-b*b)/(2*a),(b)/(2*a), sqrt(4*a*c-b*b)/(2*a));
else
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",(-b)/(2*a), sqrt(4*a*c-b*b)/(2*a),(-b)/(2*a), sqrt(4*a*c-b*b)/(2*a));
}
}
}
|
27
|
13,423 |
void main()
{
int n,g;
scanf("%d",&n);
double a[100],b[100],c[100],x1,x2,disc,rp,ip;
for(g=0;g<=n-1;g++)
{
scanf("%lf%lf%lf",&a[g],&b[g],&c[g]);
}
for(g=0;g<=n-1;g++)
{
disc=b[g]*b[g]-4*a[g]*c[g];
if(fabs(disc)<=1e-6)
{
printf("x1=x2=%.5lf\n",-b[g]/(2*a[g]));
}
else
if(disc>1e-6)
{
x1=(-b[g]+sqrt(disc))/(2*a[g]);
x2=(-b[g]-sqrt(disc))/(2*a[g]);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
else
{
if(b[g]==0)
{
rp=0;
ip=sqrt(-disc)/(2*a[g]);
printf("x1=%.5lf+%.5lfi;",rp,ip);
printf("x2=%.5lf-%.5lfi\n",rp,ip);
}
else
{
rp=-b[g]/(2*a[g]);
ip=sqrt(-disc)/(2*a[g]);
printf("x1=%.5lf+%.5lfi;",rp,ip);
printf("x2=%.5lf-%.5lfi\n",rp,ip);
}
}
}
}
|
27
|
13,424 |
int main(int argc, char* argv[])
{
int n,i;
double a,b,c,x1,x2,m,x;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%lf%lf%lf",&a,&b,&c);
if((b*b-4*a*c)>=0)
{
x1=(-b + sqrt(b*b-4*a*c))/(2*a);
x2=(-b - sqrt(b*b-4*a*c))/(2*a);
if(x1==x2)
printf("x1=x2=%.5lf\n",x1);
else
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
else
{
m=sqrt(-b*b+4*a*c)/2.0/a;
x=-b/2.0/a;
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",x,m,x,m);
}
}
return 0;
}
|
27
|
13,425 |
/*
* return.cpp
*
* Created on: 2014-1-25
* Author: ???
*/
int main()
{
int n;
double a,b,c,d;
cin>>n;
cout<<fixed<<setprecision(5);
for(int i=0;i<n;i++)
{
cin>>a>>b>>c;
if(b==0)
b=-b;
d=b*b-4*a*c;
if(d==0)
{
cout<<"x1=x2="<<(-b)/(2*a)<<endl;
}
else if(d>0)
{
cout<<"x1="<<(-b+sqrt(d))/(2*a)<<";x2="<<(-b-sqrt(d))/(2*a)<<endl;
}
else
{
double xd=sqrt(-d)/(2*a);
cout<<"x1="<<(-b)/(2*a)<<'+'<<xd<<"i;x2="<<(-b)/(2*a)<<'-'<<xd<<'i'<<endl;
}
}
return 0;
}
|
27
|
13,426 |
int main()
{
int n;
int i;
scanf("%d",&n);
for(i=0;i<n;i++)
{
double a,b,c,x1,x2;
double t;
scanf("%lf %lf %lf",&a,&b,&c);
if(b*b-4*a*c>0)
{
x1 = (-b + sqrt(b*b-4*a*c))/(2*a);
x2 = (-b - sqrt(b*b-4*a*c))/(2*a);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
else if(b*b-4*a*c==0)
{
x1 = (-b + sqrt(b*b-4*a*c))/(2*a);
printf("x1=x2=%.5lf\n",x1);
}
else
{
char s;
s=i;
x1 = sqrt(4*a*c-b*b)/(2*a);
x2 = sqrt(4*a*c-b*b)/(2*a);
t = -b/(2*a);
if(t!=0)
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",t,x1,t,x2);
else
{
t=0;
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",t,x1,t,x2);
}
}
}
return 0;
}
|
27
|
13,427 |
//****************************************
//*?????(8.3) ????????? (1051)
//*????? 1100012996 **
//*???2011.9.14
//****************************************
int main()
{
int n;//n????
cin>>n;
double a,b,c;//a?b?c???
for (int i=0;i<n;i++)
{
double x1,x2;
cin>>a>>b>>c;
double dot = b*b - 4*a*c;//???b^2-4ac??
//?????????????????
if (dot==0)
{
x1 = x2 = - b / ( 2 * a );
cout<<fixed<<setprecision(5)<<"x1=x2="<<x1<<endl;
}
else
{
if (dot>0)
{
x1 = (-b + sqrt(dot))/(2*a) ;
x2 = (-b - sqrt(dot))/(2*a) ;
cout<<fixed<<setprecision(5)<<"x1="<<x1<<";x2="<<x2<<endl;
}
else
{
if (-b/(2*a)!=0)
//????????-0.00000?????
{
cout<<fixed<<setprecision(5)<<"x1="<<-b/(2*a)<<"+"<<sqrt(-dot)/(2*a)
<<"i;x2="<<-b/(2*a)<<"-"<<sqrt(-dot)/(2*a)<<"i"<<endl;
}
else
{
cout<<fixed<<setprecision(5)<<"x1="<<b/(2*a)<<"+"<<sqrt(-dot)/(2*a)
<<"i;x2="<<b/(2*a)<<"-"<<sqrt(-dot)/(2*a)<<"i"<<endl;
}
}
}
}
return 0;
}
|
27
|
13,428 |
main()
{
int n,i;
double a,b,c,x1,x2;
scanf("%d",&n);
for(i=1;i<=n;i++)
{
scanf("%lf %lf %lf",&a,&b,&c);
if ((b*b-4*a*c)>0)
{x1 = (-b + sqrt(b*b-4*a*c))/(2*a) ;
x2 = (-b - sqrt(b*b-4*a*c))/(2*a);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);}
else if ((b*b-4*a*c)==0)
{x1=x2=(-b + sqrt(b*b-4*a*c))/(2*a);
printf("x1=x2=%.5lf\n",x1);}
else if ((b*b-4*a*c)<0)
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",0-b/(2*a),sqrt(4*a*c-b*b)/(2*a),0-b/(2*a),sqrt(4*a*c-b*b)/(2*a));
}
}
|
27
|
13,429 |
int main()
{
int n,e;
double a,b,c,x1,x2,f,g;
scanf("%d",&n);
for(e=1;e<=n;e++)
{
scanf("%lf %lf %lf",&a,&b,&c);
if((b*b)>(4*a*c))
{x1=(0-b + sqrt(b*b-4*a*c))/(2*a);
x2=(0-b - sqrt(b*b-4*a*c))/(2*a);
printf("x1=%.5f;x2=%.5f\n",x1,x2);}
else if((b*b)<(4*a*c))
{f=(0-b)/(2*a);
g=(sqrt((4*a*c)-(b*b)))/(2*a);
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",f,g,f,g);
}
else
{ x1=(0-b + (sqrt((b*b)-(4*a*c))))/(2*a);
printf("x1=x2=%.5f\n",x1);}
}
}
|
27
|
13,430 |
int main(int argc, char* argv[])
{
int n;
scanf("%d",&n);
int i;
double a[200],b[200],c[200],disc[100],X1[100],X2[100],realpart[100],imagpart[100];
for(i=0;i<n;i++)
{scanf("%lf%lf%lf\n",&a[i],&b[i],&c[i]);}
disc[i]=b[i]*b[i]-4*a[i]*c[i];
for(i=0;i<n;i++)
{
disc[i]=b[i]*b[i]-4*a[i]*c[i];
if(fabs(disc[i])<=1e-6)
{
printf("x1=x2=%.5f\n",-b[i]/(2*a[i]));
}
else if(disc[i]>1e-6)
{
X1[i]=(-b[i]+sqrt(disc[i]))/(2*a[i]);
X2[i]=(-b[i]-sqrt(disc[i]))/(2*a[i]);
printf("x1=%.5f;x2=%.5f\n",X1[i],X2[i]);
}
else
{
realpart[i]=-b[i]/(2*a[i]);
imagpart[i]=sqrt(-disc[i])/(2*a[i]);
if(fabs(realpart[i])<=1e-6)
{
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",-realpart [i],imagpart[i],-realpart[i],imagpart[i]);
}
else{printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",realpart[i],imagpart[i],realpart[i],imagpart[i]);}
}
}
return 0;
}
|
27
|
13,431 |
int main()
{int i,n;
float a,b,c,d;
double disc,x1,x2,rpart,ipart;
scanf("%d",&n);
for(i=1;i<=n;i++)
{scanf("%f %f %f",&a,&b,&c);
disc=b*b-4*a*c;
d=-b/(2*a);
if(fabs(disc)<=1e-6)
{printf("x1=x2=%.5lf\n",d);
}
else
if(disc>1e-6)
{x1=(-b+sqrt(disc))/(2*a);
x2=(-b-sqrt(disc))/(2*a);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
else
{rpart=-b/(2*a);
ipart=sqrt(-disc)/(2*a);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",rpart,ipart,rpart,ipart);
}
}
return 0;
}
|
27
|
13,432 |
int main()
{
int n;
double a, b, c;
double delta, x1, x2, real_figure, unreliable_figure; //??????delta????real_figure?????unreliable_figure??
cin >> n; //???????
for(int i = 1; i <= n; i++) //??n??????????
{
cin >> a >> b >> c;
delta = b * b - 4 * a * c; //??delta
if(delta >= 0) //??delta????????????????????
{
x1 = (-b + sqrt(delta))/(2 * a);
x2 = (-b - sqrt(delta))/(2 * a); //?????x1?x2
if(x1 == x2) //?????????????????
cout << fixed << setprecision(5) << "x1=x2=" << x2 << endl;
else //????????????????
cout << fixed << setprecision(5) << "x1=" << x1 << ";x2=" << x2 << endl;
}
else //delta??????????????
{
real_figure = b / (2 * a);
if(real_figure != 0)
real_figure = -real_figure;
unreliable_figure = sqrt(-delta) / (2 * a);
cout << fixed << setprecision(5);
//????????????????
cout << "x1=" << real_figure << "+" << unreliable_figure << "i;x2=" << real_figure << "-" << unreliable_figure << "i" << endl;
}
}
return 0;
}
|
27
|
13,433 |
int main(int argc, char *argv[])
{
int n,i;
double a[100],b[100],c[100];
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%lf %lf %lf",&a[i],&b[i],&c[i]);
}
for(i=0;i<n;i++)
{
if(a[i]!=0)
{
double delta,m,n,x1,x2;
delta=b[i]*b[i]-4*a[i]*c[i];
if(b[i]==0)
m=0;
else
m=-(b[i]/(2*a[i]));
n=sqrt(fabs(delta))/(2*a[i]);
if(delta==0)
{
printf("x1=x2=%.5lf\n",m);
}
else if(delta>0)
{x1=m+n;
x2=m-n;
printf("x1=%.5lf;x2=%.5lf\n",x1,x2); }
else
{
m=-fabs(m);
printf("x1=%.5lf+%.5lfi;",m,n);
printf("x2=%.5lf-%.5lfi\n",m,n);
}
}
}
return 0;
}
|
27
|
13,434 |
int main()
{
int n,i;
double a,b,c,x1,x2,f,g;
cin>>n;
cout<<fixed;
for(i=1;i<=n;i=i+1)
{
cin>>a>>b>>c;
f=-b/(2*a);
g=sqrt(4*a*c-b*b)/(2*a);
if(f==-0)
{
f=-f;
}
if((b*b-4*a*c)<0)
{
cout<<setprecision(5)<<"x1="<<f<<"+"<<g<<"i"<<";"<<"x2="<<f<<"-"<<g<<"i"<<endl;
}
else if((b*b-4*a*c)==0)
{
x1=(-b+sqrt(b*b-4*a*c))/(2*a);
cout<<setprecision(5)<<"x1=x2="<<x1<<endl;
}
else
{
x1=(-b+sqrt(b*b-4*a*c))/(2*a);
x2=(-b-sqrt(b*b-4*a*c))/(2*a);
cout<<setprecision(5)<<"x1="<<x1<<";"<<"x2="<<x2<<endl;
}
}
return 0;
}
|
27
|
13,435 |
main()
{
int n;
double a,b,c;
double x1,x2;
double Delta;
scanf("%d\n",&n);
for(int i=1;i<=n;i++)
{
scanf("%lf %lf %lf",&a,&b,&c);
Delta =(b*b-4*a*c);
if (Delta>0)
{x1 = (-b + sqrt(Delta))/(2*a);
x2 = (-b - sqrt(Delta))/(2*a);
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
else if (fabs(Delta)<1e-7)
{x1 = (-b )/(2*a);
printf("x1=x2=%.5f\n",x1);
}
else
{x1 = (-b + sqrt(-Delta))/(2*a);
x2 = (-b - sqrt(-Delta))/(2*a) ;
if(fabs(b)<1e-7)
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",(b/(2*a)),(sqrt(4*a*c-b*b)/(2*a)),(b/(2*a)),(sqrt(4*a*c-b*b)/(2*a)));
else
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",(-b/(2*a)),(sqrt(4*a*c-b*b)/(2*a)),(-b/(2*a)),(sqrt(4*a*c-b*b)/(2*a)));
}
}
}
|
27
|
13,436 |
int main()
{
int n,i;
cin>>n;
double a[n],b[n],c[n],p,q,x1=0,x2=0;
for(i=0;i<n;i=i+1)
{
cin>>a[i]>>b[i]>>c[i];
}
for(i=0;i<n;i=i+1)
{
p=(-1)*b[i]/(2*a[i]);
q=pow(b[i],2)-4*a[i]*c[i];
if(q==0)
{
x1=x2=p;
if(p>-0.00000001 && p<0.00000001) p=0;
cout<<fixed<<setprecision(5)<<"x1="<<"x2="<<p<<endl;
}
else if(q>0)
{
x1=p+sqrt(q)/(2*a[i]);
x2=p-sqrt(q)/(2*a[i]);
if (x1>-0.00000001 && x1<0.0000001) x1=0.0000;
cout<<fixed<<setprecision(5)<<"x1="<<x1<<";"<<"x2="<<x2<<endl;
}
if(q<0)
{
q=sqrt(-q)/(2*a[i]);
if(p>-0.00000001 && p<0.00000001) p=0;
cout<<fixed<<setprecision(5)<<"x1="<<p<<"+"<<q<<"i"<<";"<<"x2="<<p<<"-"<<q<<"i"<<endl;
}
}
return 0;
}
|
27
|
13,437 |
/*
* phoenix3.cpp
*Author: ???
* Created on: 2013-9-27
* ?????????
*/
int main()
{
float a,b,c;
double d,derta,g,h,f,k;
int n,i=0;
cin>>n;
for(i=0;i<n;i++)
{
cin>>a>>b>>c;
d=-b/(2*a);
if(fabs(d)<1e-10) d=-d;
derta=b*b-4*a*c;
if(derta==0)
{
cout<<"x1=x2=";
printf("%.5f\n\n",d);
}
else
{
if(derta<0)
{
f=sqrt(-derta);
k=f/(2*a);
cout<<"x1=";
printf("%.5f",d);
cout<<"+";
printf("%.5f",k);
cout<<"i"<<";"<<"x2=";
printf("%.5f",d);
cout<<"-";
printf("%.5f",k);
cout<<"i"<<'\n'<<endl;
}
else
{
f=sqrt(derta);
k=f/(2*a);
g=d+k;h=d-k;
cout<<"x1=";
printf("%.5f",g);
cout<<";";
cout<<"x2=";
printf("%.5f",h);
cout<<'\n'<<endl;
}
}
}
return 0;
}
|
27
|
13,438 |
main()
{
int n,k;
double a[100],b[100],c[100],x1,x2,p,m,q;
scanf("%d\n",&n);
for(k=1;k<=n;k++)
{
scanf("%lf %lf %lf",&a[k],&b[k],&c[k]);
}
for(k=1;k<=n;k++)
{
p=b[k]*b[k]-4*a[k]*c[k];
if(p==0)
{
if(b[k]==0)
{
m=0;
printf("x1=x2=%.5f\n",m);
}
else
{
m=-b[k]/(2*a[k]);
printf("x1=x2=%.5f\n",m);
}
}
if(p>0)
{
x1=(-b[k]+sqrt(p))/(2*a[k]);
x2=(-b[k]-sqrt(p))/(2*a[k]);
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
if(p<0)
{
if(b[k]==0)
{
x1=sqrt(-p)/(2*a[k]);
printf("x1=0.00000+%.5fi;x2=0.00000-%.5fi\n",x1,x1);
}
else
{
m=-b[k]/(2*a[k]);
q=sqrt(-p)/(2*a[k]);
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",m,q,m,q);
}
}
}
}
|
27
|
13,439 |
int main()
{
int n,i;
double a,b,c,d,e,s;
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%lf%lf%lf",&a,&b,&c);
d=b*b-4*a*c;
e=(-1)*b/(2*a);
if(d>0){
s=sqrt(d)/(2*a);
printf("x1=%.5lf;x2=%.5lf\n",e+s,e-s);
}
else if(d<0){
s=sqrt((-1)*d)/(2*a);
if(e==0)e=0-e;
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",e,s,e,s);
}
else{
printf("x1=x2=%.5lf\n",e);
}
}
return 0;
}
|
27
|
13,440 |
int main()
{
int n,i;
scanf("%d",&n);
for(i=0;i<n;i++)
{
double a,b,c;
scanf("%lf%lf%lf",&a,&b,&c);
if(b*b>4*a*c)
printf("x1=%.5lf;x2=%.5lf\n",(-b+sqrt(b*b-4*a*c))/(2*a),(-b-sqrt(b*b-4*a*c))/(2*a));
else if(b*b==4*a*c)
printf("x1=x2=%.5lf\n",(-b+sqrt(b*b-4*a*c))/(2*a));
else
{
if(b==0)
printf("x1=0.00000+%.5lfi;x2=0.00000%.5lfi\n",sqrt(-b*b+4*a*c)/(2*a),-sqrt(-b*b+4*a*c)/(2*a));
else
printf("x1=%.5lf+%.5lfi;x2=%.5lf%.5lfi\n",-b/(2*a),sqrt(-b*b+4*a*c)/(2*a),-b/(2*a),-sqrt(-b*b+4*a*c)/(2*a));
}
}
return 0;
}
|
27
|
13,441 |
int main(void)
{
int n;
double a, b, c, delta, x1, x2, img, rl;
cin >>n;
for (int i = 1; i <= n; i++)
{
cin >> a >> b >> c;
delta = b * b - 4 * a * c;
if (delta > 0)
{
x1 = (-b + sqrt(delta))/(2 * a);
x2 = (-b - sqrt(delta))/(2 * a);
cout << fixed << setprecision(5) << "x1=" << x1 << ";" << "x2=" << x2 << endl;
}
else if (delta == 0)
{
x1 = (-b)/(2*a);
cout << fixed << setprecision(5) << "x1=x2=" << x1 << endl;
}
else
{
img = sqrt(-delta) / (2 * a);
rl = (-b) / (2 * a);
if (rl != 0)
{
cout << fixed << setprecision(5) << "x1=" << rl << "+" << img << "i;";
cout << fixed << setprecision(5) << "x2=" << rl << "-" << img << "i" << endl;
}
else
{
cout << fixed << setprecision(5) << "x1=" << "0.00000" << "+" << img << "i;";
cout << fixed << setprecision(5) << "x2=" << "0.00000" << "-" << img << "i" << endl;
}
}
}
return 0;
}
|
27
|
13,442 |
int main()
{
int n=0;
float a[10];
float b[10];
float c[10];
double x1[10];
double x2[10];
int j;
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%f %f %f\n",&a[j],&b[j],&c[j]);
}
for(j=0;j<n;j++)
{
if((b[j]*b[j]-4*a[j]*c[j])>0)
{
x1[j]=(-b[j] + sqrt(b[j]*b[j]-4*a[j]*c[j]))/(2*a[j]);
x2[j]=(-b[j] - sqrt(b[j]*b[j]-4*a[j]*c[j]))/(2*a[j]);
printf("x1=%.5lf;x2=%.5lf\n",x1[j],x2[j]);
}
if((b[j]*b[j]-4*a[j]*c[j])==0)
{
x2[j]=(-b[j] + sqrt(b[j]*b[j]-4*a[j]*c[j]))/(2*a[j]);
printf("x1=x2=%.5lf\n",x2[j]);
}
if((b[j]*b[j]-4*a[j]*c[j])<0)
{
double m;
double n;
m=-b[j]/(2*a[j]);
n=sqrt(4*a[j]*c[j]-b[j]*b[j])/(2*a[j]);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",m,n,m,n);
}
}
return 0;
}
|
27
|
13,443 |
int main()
{int n=0;
double a=0,b=0,c=0,d=0;
cin>>n;
for(int i=1;i<=n;i++)
{cin>>a>>b>>c;
d=b*b-4*a*c;
if(b-0==0)
{if(d-0>0)
{cout<< fixed << setprecision(5) << "x1=0.00000+"<<sqrt(d)/(2*a)<<";"<<"x2=0.00000"<<-sqrt(d)/(2*a)<<endl;
}
if(d-0==0)
{cout<<fixed << setprecision(5) << "x1=x2="<<-b/(2*a)<<endl;
}
if(d-0<0)
{cout<<fixed << setprecision(5) << "x1=0.00000+"<<sqrt(-d)/(2*a)<<"i"<<";"<<"x2=0.00000-"<<sqrt(-d)/(2*a)<<"i"<<endl;
}
}
else{
if(d-0>0)
{cout<< fixed << setprecision(5) << "x1="<<-b/(2*a)+sqrt(d)/(2*a)<<";"<<"x2="<<-b/(2*a)-sqrt(d)/(2*a)<<endl;
}
if(d-0==0)
{cout<<fixed << setprecision(5) << "x1=x2="<<-b/(2*a)<<endl;
}
if(d-0<0)
{cout<<fixed << setprecision(5) << "x1="<<-b/(2*a)<<"+"<<sqrt(-d)/(2*a)<<"i"<<";"<<"x2="<<-b/(2*a)<<"-"<<sqrt(-d)/(2*a)<<"i"<<endl;
}
}
}
return 0;
}
|
27
|
13,444 |
int main()
{
int n;
scanf("%d", &n);
double a[100],b[100],c[100];
int i;
double delta[100];
double x1,x2;
double x11,x12,x21,x22;
double mo[100];
double e[100];
for(i=1;i<=n;i++)
{
scanf("%lf%lf%lf", &a[i], &b[i], &c[i]);
delta[i]= b[i]*b[i]-4*a[i]*c[i];
e[i]=(b[i]==0) ?0 : (-b[i])/(2 * a[i]);
}
for(i=1;i<=n;i++)
{
if(delta[i]>0)
{
x1=e[i]+sqrt(delta[i])/(2*a[i]);
x2=e[i]-sqrt(delta[i])/(2*a[i]);
printf("x1=%.5lf;x2=%.5lf\n", x1,x2);
continue;
}
else if(delta[i]<0)
{
mo[i]=sqrt(-delta[i]);
x11=e[i];
x12=mo[i]/(2*a[i]);
x21=x11;
x22=mo[i]/(2*a[i]);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n", x11,x12,x21,x22);
continue;
}
else if(delta[i]<pow(10,-8))
{
x1=e[i];
printf("x1=x2=%.5lf\n", x1);
}
}
return 0;
}
|
27
|
13,445 |
int main()
{
int n; //n???????
cin >> n; //??n
cout << fixed <<setprecision(5);
for ( int i = 1;i <= n; i++) //??i?1?n???
{ //????
double a,b,c; //?????????a,b,c
cin >> a >> b >> c; //??a,b,c
double delta = b*b-4*a*c; //?????delta
double line = -b/(2*a); //??????-b/(2*a)
if ( line == -0 )
line = 0;
if ( delta == 0 ) //??delta?0
cout << "x1=x2=" << line << endl; //??x1=x2
else if (delta > 0)
cout << "x1=" << line + sqrt(delta)/(2*a)
<< ";x2="<< line - sqrt(delta)/(2*a)
<< endl;
else if (delta < 0)
cout << "x1=" << line << "+"
<< (sqrt(-delta))/(2*a)<< "i;"
<< "x2=" << line << "-"
<< (sqrt(-delta))/(2*a)<< "i"
<< endl;
}
cin.get();
cin.get();
return 0;
}
|
27
|
13,446 |
int main()
{ int n,i;
scanf("%d",&n);
for(i=0;i<n;i++)
{
double a,b,c,d,x1,x2;
scanf("%lf%lf%lf",&a,&b,&c);
d=(double)b*b-4*a*c;
if(d<0)
{double m,n;
m=-b/(2*a);
n=(sqrt(4*a*c-b*b))/(2*a);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",m,n,m,n);
}
else
{
x1=(-b + sqrt(b*b-4*a*c))/(2*a);
x2=(-b - sqrt(b*b-4*a*c))/(2*a);
if(x1!=x2)
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
else
printf("x1=x2=%.5lf\n",x1,x2);
}
}
return 0;
}
|
27
|
13,447 |
void main()
{
double a[32768],b[32768],c[32768];
int n,i;
double d,x1,x2,e;
scanf("%d",&n);
for(i=1;i<=n;i++)
scanf("%lf %lf %lf",&a[i],&b[i],&c[i]);
for(i=1;i<=n;i++)
{
if (fabs(a[i])<1e-16)
printf("Wrong\n");
else
{
d=b[i]*b[i]-4*a[i]*c[i];
if (fabs(d)<1e-16)
{
x1=-b[i]/(2*a[i]);
x2=-b[i]/(2*a[i]);
if (fabs(x1)<5e-6) x1=0;
if (fabs(x2)<5e-6) x2=0;
printf("x1=x2=%.5f\n",x1);
}
else if (d>=1e-16)
{
x1=(-b[i]+sqrt(d))/(2*a[i]);
x2=(-b[i]-sqrt(d))/(2*a[i]);
if (fabs(x1)<5e-6) x1=0;
if (fabs(x2)<5e-6) x2=0;
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
else
{
x1=-b[i]/(2*a[i]);
x2=-b[i]/(2*a[i]);
if (fabs(x1)<5e-6) x1=0;
if (fabs(x2)<5e-6) x2=0;
e=sqrt(-d)/(2*a[i]);
if (fabs(e)<5e-6) printf("x1=x2=%.5f\n",x1);
else
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",x1,e,x2,e);
}
}
}
}
|
27
|
13,448 |
int main(int argc, char* argv[])
{
int n,i;
scanf("%d",&n);
double a[100],b[100],c[100],x1[100],x2[100],y1[100];
for(i=0;i<n;i++)
{
scanf("%lf%lf%lf",&a[i],&b[i],&c[i]);
}
for(i=0;i<n;i++)
{
if(b[i]*b[i]-4*a[i]*c[i]>0)
{
x1[i]=(-b[i]+sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]);
x2[i]=(-b[i]-sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]);
printf("x1=%.5lf;x2=%.5lf\n",x1[i],x2[i]);
}
if(b[i]*b[i]-4*a[i]*c[i]==0)
{
x1[i]=x2[i]=(-b[i]+sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]);
printf("x1=x2=%.5lf\n",x1[i]);
}
if(b[i]*b[i]-4*a[i]*c[i]<0)
{
y1[i]=sqrt(-b[i]*b[i]+4*a[i]*c[i])/(2*a[i]);
x1[i]=-b[i]/(2*a[i]);
x2[i]=-b[i]/(2*a[i]);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",x1[i],y1[i],x2[i],y1[i]);
}
}
return 0;
}
|
27
|
13,449 |
main()
{
int n,i;
double a[999],b[999],c[999],x1,x2,d;
scanf("%d",&n);
i=1;
while(i<=n)
{
scanf("%lf %lf %lf",&a[i],&b[i],&c[i]);
i=i+1;
}
{
i=1;
for(i=1;i<=n;)
{ if (b[i]!=0)
{d=b[i]*b[i]-4*a[i]*c[i];
if(d>0)
{ x1=(-b[i] + sqrt(d))/(2*a[i]);
x2=(-b[i] - sqrt(d))/(2*a[i]);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
if(d==0)
{ x1=-b[i]/(2*a[i]);
x2=-b[i]/(2*a[i]);
printf("x1=x2=%.5lf\n",x1);
}
if(d<0)
{ x1=-b[i]/(2*a[i]);
x2=sqrt(-b[i]*b[i]+4*a[i]*c[i])/(2*a[i]);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",x1,x2,x1,x2);
}
}
if (b[i]==0)
{
d=b[i]*b[i]-4*a[i]*c[i];
if(d>0)
{ x1=(-b[i] + sqrt(d))/(2*a[i]);
x2=(-b[i] - sqrt(d))/(2*a[i]);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
if(d==0)
{ x1=(fabs)(-b[i]/(2*a[i]));
x2=(fabs)(-b[i]/(2*a[i]));
printf("x1=x2=%.5lf\n",x1);
}
if(d<0)
{ x1=(fabs)(-b[i]/(2*a[i]));
x2=(fabs)(sqrt(-b[i]*b[i]+4*a[i]*c[i])/(2*a[i]));
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",x1,x2,x1,x2);
}
}
i=i+1;
}
}
}
|
27
|
13,450 |
int main()
{
double a[100],b[100],c[100],x1[100],x2[100],s[100],x[100];
int n,i;
scanf("%d",&n);
for(i=1;i<=n;i++)
{
scanf("%lf%lf%lf",&a[i],&b[i],&c[i]);
if(b[i]*b[i]-4*a[i]*c[i]>0)
{
x1[i]=(-b[i]+sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]);
x2[i]=(-b[i]-sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]);
printf("x1=%.5lf;",x1[i]);
printf("x2=%.5lf\n",x2[i]);
}
else if(b[i]*b[i]-4*a[i]*c[i]==0)
{
x1[i]=x2[i]=-b[i]/(2*a[i]);
printf("x1=x2=%.5lf\n",x1[i]);
}
else
{s[i]= -b[i]/(2*a[i]);
x[i]=sqrt(-b[i]*b[i]+4*a[i]*c[i])/(2*a[i]);
printf("x1=%.5lf+%.5lfi;",s[i],x[i]);
printf("x2=%.5lf-%.5lfi\n",s[i],x[i]);
}
}
return 0;
}
|
27
|
13,451 |
int main()
{
int n,o,g;
double a,b,c,d,x1,x2;
cin>>n;
for(o=1;o<=n;o++)
{
cin>>a>>b>>c;
if(a<0)
{
a=0-a;
b=0-b;
c=0-c;
}
d=b*b-4*a*c;
if(d>0)
g=2;
else if(d<0)
{
g=0;
d=0-d;
}
else
g=1;
if(g==1)
{
x1=-b/(2*a);
cout<<"x1=x2=";
printf("%.5f",x1);
cout<<endl;
}
else if(g==2)
{
x1=(sqrt(d)-b)/(2*a);
x2=(-sqrt(d)-b)/(2*a);
cout<<"x1=";
printf("%.5f",x1);
cout<<";x2=";
printf("%.5f",x2);
cout<<endl;
}
else
{
x1=sqrt(d)/(2*a);
cout<<"x1=";
printf("%.5f",-b/(2*a));
cout<<"+";
printf("%.5f",x1);
cout<<"i;x2=";
printf("%.5f",-b/(2*a));
cout<<"-";
printf("%.5f",x1);
cout<<"i"<<endl;
}
}
return 0;
}
|
27
|
13,452 |
int main()
{
int n,i;
cin>>n;
i=0;
double a[100],b[100],c[100],x1,x2,xubu;
while (i<n)
{
cin>>a[i]>>b[i]>>c[i];
i++;
}
i=0;
while(i<n)
{
if(b[i]*b[i]-4*a[i]*c[i]>0)
{
x1=(-b[i]+sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]);
x2=(-b[i]-sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]);
if(x1==-0) x1=0;
if(x2==-0) x2=0;
printf("x1=%.5f;x2=%.5f\n",x1,x2);
i++;
}
else if (b[i]*b[i]-4*a[i]*c[i]==0)
{
x1=x2=(-b[i])/(2*a[i]);
if(x1==-0) x1=x2=0;
printf("x1=x2=%.5f\n",x1,x2);
i++;
}
else
{
xubu=sqrt(4*a[i]*c[i]-b[i]*b[i])/(2*a[i]);
x1=x2=(-b[i])/(2*a[i]);
if(x1==-0) x1=x2=0;
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",x1,xubu,x2,xubu);
i++;
}
}
return 0;
}
|
27
|
13,453 |
main()
{
int i,n;
double d,e,p,q,t,a[100],b[100],c[100];
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%lf %lf %lf",&a[i],&b[i],&c[i]);
}
for(i=0;i<n;i++)
{
t=b[i]*b[i]-4*a[i]*c[i];
if(t<0)
{
d=-b[i]/(a[i]*2);
p=sqrt(-t)/(2*a[i]);
q=sqrt(-t)/(2*a[i]);
if(d==0)
{
d=0.00000;
}
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",d,p,d,q);
}
else if(fabs(t-0)<0.00000001)
{
d=-b[i]/(2*a[i]);
printf("x1=x2=%.5lf\n",d);
}
else
{
d=(-b[i]+sqrt(t))/(2*a[i]);
e=(-b[i]-sqrt(t))/(2*a[i]);
printf("x1=%.5lf;x2=%.5lf\n",d,e);
}
}
}
|
27
|
13,454 |
void main()
{
int n;
double a,b,c,x1,x2,a1,b1;
scanf("%d\n", &n);
while(n!=0)
{
scanf("%lf %lf %lf", &a,&b,&c);
if((b*b-4*a*c)>0)
{
x1 = (-b + sqrt(b*b-4*a*c))/(2*a);
x2 = (-b - sqrt(b*b-4*a*c))/(2*a);
printf("x1=%.5lf;x2=%.5lf\n", x1,x2);
}
else if((b*b-4*a*c)==0)
{
x1 = (-b + sqrt(b*b-4*a*c))/(2*a);
x2 = (-b - sqrt(b*b-4*a*c))/(2*a);
printf("x1=x2=%.5lf\n",x1);
}
else if((b*b-4*a*c)<0)
{
a1=-b/(2*a);
b1=sqrt(4*a*c-b*b)/(2*a);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n", a1,b1,a1,b1);
}
n=n-1;
}
}
|
27
|
13,455 |
void main()
{
int n;
scanf("%d",&n);
double a[1000],b[1000],c[1000];
int q;
double x1,x2;
for(q=0;q<n;q++)
{
scanf("%lf%lf%lf",&a[q],&b[q],&c[q]);
}
for(q=0;q<n;q++)
{
double d = b[q]*b[q]-4*a[q]*c[q];
if(d>0)
{
x1=(-b[q] + sqrt(d))/(2*a[q]) ;
x2=(-b[q] - sqrt(d))/(2*a[q]);
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
else if(d==0)
{
x1=(-b[q] )/(2*a[q]) ;x2=(-b[q] )/(2*a[q]) ;
printf("x1=x2=%.5f\n",x1);
}
else
{
printf("x1=%.5f+%.5fi;x2=%.5f%.5fi\n",-b[q]/(2*a[q]),sqrt(-d)/(2*a[q]),-b[q]/(2*a[q]),- sqrt(-d)/(2*a[q]));
}
}
}
|
27
|
13,456 |
main()
{
int j,n;
double q[100],w[100],e[100],a,b,c,p,x1,x2,h,g;
scanf("%d",&n);
for(j=0;j<=n-1;j++)
{
scanf("%lf %lf %lf",&q[j],&w[j],&e[j]);
}
for(j=0;j<=n-1;j++)
{
a=q[j];
b=w[j];
c=e[j];
p=b*b-4*a*c;
if (p>0)
{
if(b!=0)
{
x1=(-b+sqrt(p))/(2*a);
x2=(-b-sqrt(p))/(2*a);
printf("x1=%.5lf;x2=%.5lf",x1,x2);
printf("\n");
}
else
printf("x1=%.5lf;x2=-%.5lf",sqrt(p)/(2*a),sqrt(p)/(2*a));
}
else
if (p==0)
{
if(b!=0)
{
x1=x2=-b/(2*a);
printf("x1=x2=%.5lf",x2);
}
else
printf("x1=x2=0.00000");
printf("\n");
}
else
{
if(b!=0)
{
h=-b/(2*a);
g=(sqrt(-p))/(2*a);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi",h,g,h,g);
}
else
{
g=(sqrt(-p))/(2*a);
printf("x1=0.00000+%.5lfi;x2=0.00000-%.5lfi",g,g);
}
printf("\n");
}
}
getchar();
getchar();
}
|
27
|
13,457 |
//********************************
//*????6.cpp **
//*?????? 1300012966 **
//*???2013. **
//*???????????? **
//********************************
int main()
{
int n, i;
double a[100], b[100], c[100], d, x1, x2, e, f;
cin >> n;
for (i=1; i<=n; i++)
{
cin >> a[i] >> b[i] >> c[i];
} //????
for (i=1; i<=n; i++)
{
d = b[i] * b[i] - 4 * a[i] * c[i]; //?????
if (d > 0)
{
x1 = (- b[i] + sqrt(d)) / (2 * a[i]);
x2 = (- b[i] - sqrt(d)) / (2 * a[i]);
cout << "x1=";
printf ("%.5f", x1);
cout << ";" << "x2=";
printf ("%.5f\n", x2);
} //?????????
if (d == 0)
{
x1 = - b[i] / (2 * a[i]);
if (x1 == 0)
{
x1 = 0;
}
cout << "x1=x2=";
printf ("%.5f\n", x1);
} //?????????
if (d < 0)
{
e = - b[i] / (2 * a[i]);
if (e == 0)
{
e =0;
}
f = sqrt(- d) / (2 * a[i]);
cout << "x1=";
printf ("%.5f", e);
cout << "+";
printf ("%.5f", f);
cout << "i" << ";" << "x2=";
printf ("%.5f", e);
cout << "-";
printf ("%.5f", f);
cout << "i" << endl;
} //???????
}
return 0;
}
|
27
|
13,458 |
int main()
{
double n,m,a,b,c,x1,x2,h,j;
cin>>n;
for(m=1;m<=n;m++)
{
cin>>a>>b>>c;
if(b*b-4*a*c>0)
{
x1 = (-b + sqrt(b*b-4*a*c))/(2*a);
x2 = (-b - sqrt(b*b-4*a*c))/(2*a);
if(-0.000001<x1&&x1<0)
x1=0.00000;
if(-0.000001<x2&&x2<0)
x2=0.00000;
cout<<"x1=";
printf("%.5f",x1);
cout<<";x2=";
printf("%.5f",x2);
cout<<endl;
}
else if(b*b-4*a*c==0)
{
x1 = (-b + sqrt(b*b-4*a*c))/(2*a);
if(-0.000001<x2&&x2<0)
x2=0.00000;
cout<<"x1=x2=";
printf("%.5f",x1);
cout<<endl;
}
else
{
h=-b/(2*a);
j=sqrt(4*a*c-b*b)/(2*a);
if(h==-0.00000)
h=0.00000;
if(j==-0.00000)
j=0.00000;
cout<<"x1=";
printf("%.5f",h);
cout<<"+";
printf("%.5f",j);
cout<<"i";
cout<<";x2=";
printf("%.5f",h);
cout<<"-";
printf("%.5f",j);
cout<<"i"<<endl;
}
}
return 0;
}
|
27
|
13,459 |
int main(int argc, char* argv[])
{
int i,n;
double a[100],b[100],c[100];
double k;
scanf("%d",&n);
double x1,x2;
double f;
for(i=0;i<n;i++)
{
scanf("%lf %lf %lf",&a[i],&b[i],&c[i]);
}
for(i=0;i<n;i++)
{
f=-(b[i]/2/a[i]);
double j=sqrt(b[i]*b[i]-4*a[i]*c[i])/(2*a[i]);
if(b[i]!=0)
{
if(b[i]*b[i]-4*a[i]*c[i]>0)
{
x1=f+j;
x2=f-j;
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
if(b[i]*b[i]-4*a[i]*c[i]<0)
{
k=sqrt(-b[i]*b[i]+4*a[i]*c[i])/(2*a[i]);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",f,k,f,k);
}
if(b[i]*b[i]-4*a[i]*c[i]==0)
{
x1=f;
x2=f;
printf("x1=x2=%.5lf\n",f,f);
}
}
if(b[i]==0)
{
if(b[i]*b[i]-4*a[i]*c[i]>0)
{
x1=j;
x2=-j;
printf("x1=0.00000+%.5lf;x2=0.00000+%.5lf\n",x1,x2);
}
if(b[i]*b[i]-4*a[i]*c[i]<0)
{
k=sqrt(4*a[i]*c[i])/(2*a[i]);
printf("x1=0.00000+%.5lfi;x2=0.00000-%.5lfi\n",k,k);
}
if(-4*a[i]*c[i]==0)
{
x1=f;
x2=f;
printf("x1=x2=0.00000\n");
}
}
}
return 0;
}
|
27
|
13,460 |
int main()
{
int n,i=1;
double a,b,c,x1,x2,m,e,f;
scanf("%d",&n);
while((i<=n)&&a!=0)
{
scanf("%lf%lf%lf",&a,&b,&c);
m=b*b-4*a*c;
e=(-b+sqrt(b*b-4*a*c))/(2*a);
f=(-b-sqrt(b*b-4*a*c))/(2*a);
if(b!=0)
{
if((e!=f)&&(m>=0))
{
x1=(-b+sqrt(b*b-4*a*c))/(2*a);
x2=(-b-sqrt(b*b-4*a*c))/(2*a);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
else if((m>=0)&&(e=f))
{
x1=(-b+sqrt(b*b-4*a*c))/(2*a);
x2=(-b-sqrt(b*b-4*a*c))/(2*a);
printf("x1=x2=%.5lf\n",x1);
}
else
{
x1=-b/(2*a);
x2=sqrt(-m)/(2*a);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",x1,x2,x1,x2);
}
}
else
{if((e!=f)&&(m>=0))
{
x1=(sqrt(b*b-4*a*c))/(2*a);
x2=(-sqrt(b*b-4*a*c))/(2*a);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
else if((m>=0)&&(e=f))
{
x1=(sqrt(b*b-4*a*c))/(2*a);
x2=(-sqrt(b*b-4*a*c))/(2*a);
printf("x1=x2=%.5lf\n",x1);
}
else
{
x1=-b/(2*a);
x2=sqrt(-m)/(2*a);
printf("x1=-0.00000+%.5lfi;x2=-0.00000-%.5lfi\n",x2,x2);
}
}
i++;
}
return 0;
}
|
27
|
13,461 |
int main(int argc, char* argv[])
{
int n;
scanf("%d",&n);
double x1,x2;
float a[N],b[N],c[N];
int i;
for(i=0;i<n;i++)
{
scanf("%f%f%f",&a[i],&b[i],&c[i]);
}
for(i=0;i<n;i++)
{
if(a!=0)
{ double m,n,p;
m=(-b[i])/(2*a[i]);
n=sqrt((b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]);
p=sqrt(4*a[i]*c[i]-b[i]*b[i])/(2*a[i]);
if(b[i]*b[i]-4*a[i]*c[i]>0)
{
x1=m+n;
x2=m-n;
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
else if(b[i]*b[i]-4*a[i]*c[i]==0)
{
printf("x1=x2=%.5f\n",m);
}else
{
printf("x1=%.5f+%.5fi;",m,p);
printf("x2=%.5f-%.5fi\n",m,p);
}
}
}
return 0;
}
|
27
|
13,462 |
void main()
{
double a[32768],b[32768],c[32768];
int n,i;
double d,x1,x2,e;
scanf("%d",&n);
for(i=1;i<=n;i++)
scanf("%lf %lf %lf",&a[i],&b[i],&c[i]);
for(i=1;i<=n;i++)
{
if (fabs(a[i])<1e-15)
printf("Wrong\n");
else
{
d=b[i]*b[i]-4*a[i]*c[i];
if (fabs(d)<1e-15)
{
x1=-b[i]/(2*a[i]);
x2=-b[i]/(2*a[i]);
if (fabs(x1)<5e-6) x1=0;
if (fabs(x2)<5e-6) x2=0;
printf("x1=x2=%.5f\n",x1);
}
else if (d>=1e-15)
{
x1=(-b[i]+sqrt(d))/(2*a[i]);
x2=(-b[i]-sqrt(d))/(2*a[i]);
if (fabs(x1)<5e-6) x1=0;
if (fabs(x2)<5e-6) x2=0;
if(fabs(("%.5f",x1)-("%.5f",x2))<5e-6)
printf("x1=x2=%.5f\n",x1);
else printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
else
{
x1=-b[i]/(2*a[i]);
x2=-b[i]/(2*a[i]);
if (fabs(x1)<5e-6) x1=0;
if (fabs(x2)<5e-6) x2=0;
e=sqrt(-d)/(2*a[i]);
if (fabs(e)<5e-6) printf("x1=x2=%.5f\n",x1);
else
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",x1,e,x2,e);
}
}
}
}
|
27
|
13,463 |
main()
{
int n,j;
double a,b,c;
double p,q,r,u,v,t;
double x1,x2;
char i;
scanf("%d",&n);
double m[100][3];
for(j=0;j<n;j++)
{
scanf("%lf%lf%lf\n",&a,&b,&c);
m[j][0]=a;
m[j][1]=b;
m[j][2]=c;
}
for(j=0;j<n;j++)
{
p=m[j][0];
q=m[j][1];
r=m[j][2];
t=q*q-4*p*r;
if(t>0)
{
double p1;
p1=2*p;
x1=(-q+sqrt(t))/p1;
x2=(-q-sqrt(t))/p1;
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
else
{
if(t==0)
{
x1=-q/(2*p);
x2=-q/(2*p);
printf("x1=x2=%.5lf\n",x1);
}
else
{
u=sqrt(-t)/(2*p);
v=(-q)/(2*p);
if(v!=0)
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",v,u,v,u);
else
printf("x1=0.00000+%.5lfi;x2=0.00000-%.5lfi\n",u,u);
}
}
}
getchar();
getchar();
getchar();
getchar();
}
|
27
|
13,464 |
int main ()
{
int n,m;
scanf ("%d\n",&n);
double a[n],b[n],c[n],x1[n],x2[n],p[n],r[n],s[n];
for (m=0;m<n;m++)
{
scanf ("%lf %lf %lf\n",&a[m],&b[m],&c[m]);
if (b[m]*b[m]-4*a[m]*c[m]>0)
{
x1[m]=(-b[m] + sqrt(b[m]*b[m]-4*a[m]*c[m]))/(2*a[m]);
x2[m]=(-b[m] - sqrt(b[m]*b[m]-4*a[m]*c[m]))/(2*a[m]);
}
else if (b[m]*b[m]-4*a[m]*c[m]==0)
{
x1[m]=(-b[m] + sqrt(b[m]*b[m]-4*a[m]*c[m]))/(2*a[m]);
x2[m]=(-b[m] - sqrt(b[m]*b[m]-4*a[m]*c[m]))/(2*a[m]);
}
else
{
if (b[m]/(2*a[m])==0)
{p[m]=b[m]/(2*a[m]);}
else
{p[m]=-b[m]/(2*a[m]);}
r[m]=sqrt(4*a[m]*c[m]-b[m]*b[m])/(2*a[m]);
s[m]=-sqrt(4*a[m]*c[m]-b[m]*b[m])/(2*a[m]);
}
}
for (m=0;m<n;m++)
{
if (b[m]*b[m]-4*a[m]*c[m]>0)
{
printf ("x1=%.5lf;x2=%.5lf\n",x1[m],x2[m]);
}
else if (b[m]*b[m]-4*a[m]*c[m]==0)
{
printf ("x1=x2=%.5lf\n",x1[m]);
}
else
{
printf ("x1=%.5lf+%.5lfi;x2=%.5lf%.5lfi\n",p[m],r[m],p[m],s[m]);
}
}
return 0;
}
|
27
|
13,465 |
int main ()
{
int n , i ;
float a , b , c;
double x1 , x2 , r , d ;
cin >> n ;
for (i = 1 ; i <= n ; i++)
{
cin >> a >> b >> c ;
if (b*b-4*a*c>0)
{
x1 = (-b + sqrt (b * b - 4.0 * a * c ))/(2.0*a);
x2 = (-b - sqrt (b * b - 4.0 * a * c ))/(2.0*a);
cout << fixed << setprecision(5) <<"x1=" << x1 << ";" << "x2=" << x2 << endl;
}
else
{
if (b*b-4.0*a*c==0)
{
x1 = x2 = (-b)/(2.0*a);
cout << fixed << setprecision(5) << "x1=x2=" << x1 << endl;
}
else
{
r = (-b)/(2*a) ;
d = sqrt(4.0 * a * c -b*b)/(2*a);
if (b==0)
{
cout << fixed << setprecision (5) << "x1=" << b << "+" << d << "i" << ";" << "x2=" << b << "-" << d << "i" << endl ;
}
else
{
cout << fixed << setprecision(5) << "x1=" << r << "+" << d << "i" << ";" << "x2=" << r << -d << "i" << endl;
}
}
}
}
return 0 ;
}
|
27
|
13,466 |
//********************************
//*?? ????????? *****
//*????? 1300012753 *****
//*???2013.10.09 *****
//********************************
int main()
{
int n; // n????????
cin >> n; // ??n
// ????????
for (int i = 1; i <= n; i++)
{
double a, b, c; // a?b?c??????
cin >> a >> b >> c;
double x1, x2, deta; // ??x1 x2???????deta??b^2-4ac
// ?????????
deta = b * b - 4.0 * a * c;
if (deta == 0) // ??deta??0??x1=x2??????
{
x1 = (-b) / (2.0 * a);
if(x1 == -0) // ??x1?????-0????0
{
x1 = 0;
}
printf("x1=x2=%.5lf\n", x1);
}
else if(deta > 0)
{
x1 = (-b + sqrt(deta)) / (2 * a);
x2 = (-b - sqrt(deta)) / (2 * a);
if(x1 == -0)
{
x1 = 0;
}
if(x2 == -0)
{
x2 = 0;
}
printf("x1=%.5lf;x2=%.5lf\n", x1, x2);
}
else // ??deta??0???????????
{
double s, x;
s = (-b) / (2.0 * a);
x = (sqrt(-deta)) / (2 * a);
if(s == -0)
{
s = 0;
}
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n", s, x, s, x);
}
}
return 0;
}
|
27
|
13,467 |
int main()
{
float a,b,c;
int i,n;
double p,q;
cin>>n;
for(i=0;i<n;i++)
{
cin>>a>>b>>c;
{if(b==0)
p=0.0;
if(b!=0)
p=-b/(2*a);
}
q=b*b-4*a*c;
if(q>0)
cout<<"x1="<<fixed<<setprecision(5)<<p+(sqrt(q)/2/a)<<";x2="<<p-(sqrt(q)/2/a)<<endl;
if(q==0)
cout<<"x1=x2="<<fixed<<setprecision(5)<<p<<endl;
if(q<0)
cout<<"x1="<<fixed<<setprecision(5)<<p<<"+"<<(sqrt(-q)/2/a)<<"i"<<";x2="<<p<<"-"<<(sqrt(-q)/2/a)<<"i"<<endl;
}
return 0;
}
|
27
|
13,468 |
main()
{
int n,i;
scanf("%d",&n);
for(i=0;i<n;i++)
{
double a,b,c,m;
scanf("%lf %lf %lf",&a,&b,&c);
m=b*b-4*a*c;
if(fabs(m)<=1e-6)
{
if(fabs(b)<=1e-6)
printf("x1=x2=%.5f",b/(2*a));
else
printf("x1=x2=%.5f",-b/(2*a));
}
else
if(m>1e-6)
printf("x1=%.5lf;x2=%.5lf",(-b+sqrt(m))/(2*a),(-b-sqrt(m))/(2*a));
else
{
if(fabs(b)<=1e-6)
printf("x1=%.5lf+%.5lfi;x2=%.5f-%.5fi",b/(2*a),sqrt(-m)/(2*a),b/(2*a),sqrt(-m)/(2*a));
else
printf("x1=%.5lf+%.5lfi;x2=%.5f-%.5fi",-b/(2*a),sqrt(-m)/(2*a),-b/(2*a),sqrt(-m)/(2*a));
}
printf("\n");
}
}
|
27
|
13,469 |
int main(int argc, char* argv[])
{
int n,j;
scanf("%d",&n);
for(j=1;j<=n;j++){
double a,b,c,d,e,x1,x2;
scanf("%lf%lf%lf",&a,&b,&c);
d=b*b-4*a*c;
e=-(b/(2*a));
if(d>0){
x1=e+(sqrt(d))/(2*a);
x2=e-(sqrt(d))/(2*a);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
if(d==0){
x1=e;
printf("x1=x2=%.5lf\n",x1);
}
if(d<0){
d=-d;
if(b!=0){
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",e,(sqrt(d))/(2*a),e,(sqrt(d))/(2*a));
}
if(b==0){
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",b,(sqrt(d))/(2*a),b,(sqrt(d))/(2*a));
}
}
}
return 0;
}
|
27
|
13,470 |
int main()
{
int n,i;
double a,b,c,x1,x2,x,y;
cin>>n;
for(i=1;i<=n;i++)
{ cin>>a>>b>>c;
float m;
m=b*b-4*a*c;
if(m==0)
{ x=-b/(2*a);
cout<<fixed<<setprecision(5)<<"x1=x2="<<x<<endl;
}
else
{ if (m>0)
{x1=(-b+sqrt(m))/(2*a);
x2=(-b-sqrt(m))/(2*a);
cout<<fixed<<setprecision(5)<<"x1="<<x1<<";"<<"x2="<<x2<<endl;
}
else
{if(b==0){x=b/(2*a);
y=sqrt(-m)/(2*a);
cout<<fixed<<setprecision(5)<<"x1="<<x<<"+"<<y<<"i;x2="<<x<<"-"<<y<<"i"<<endl;
}
else{x=-b/(2*a);
y=sqrt(-m)/(2*a);
cout<<fixed<<setprecision(5)<<"x1="<<x<<"+"<<y<<"i;x2="<<x<<"-"<<y<<"i"<<endl;
}
}
}
}
return 0;}
|
27
|
13,471 |
int main() //???
{ //?????
int n,i;
double a,b,c,x1,x2,d,p,q; //????
cin>>n;
for(i=0;i<n;i++) //n???
{ //????
cin>>a>>b>>c; //?? a,b,c
d=b*b-4*a*c;
p=-b/(2*a);
q=sqrt(abs(d)); //?????????
if(d<0) //? d<0
{ //?? d ? 0 ?????
cout<<fixed<<setprecision(5)<<"x1="<<p+1-1<<"+"<<q/(2*a)<<"i"
<<";"<<"x2="<<p+1-1<<"-"<<q/(2*a)<<"i"<<endl;
}
else
{
if(d==0) //? d=0
{
cout<<fixed<<setprecision(5)<<"x1=x2="<<p+1-1<<endl;
}
else //? d>0
{
cout<<fixed<<setprecision(5)<<"x1="<<p+1-1+q/(2*a)<<";"<<"x2="<<p+1-1-q/(2*a)<<endl;
}
}
}
return 0;
} //?????
|
27
|
13,472 |
int main()
{
int n, i; //???????????
double a, b, c, deta, x1, x2, t; //???????????-b/2a
cin >> n; //??????
cout << fixed << setprecision(5); //??????
for(i = 1;i<=n;i++)
{
cin >> a >> b >> c;
t = - b / ( 2 * a );
deta = b * b - 4 * a * c; //??t?deta(???)
//?deta>0??????
if(deta > 0)
{
x1 = ( - b + sqrt(deta) ) / ( 2 * a );
x2 = ( - b - sqrt(deta) ) / ( 2 * a );
cout << "x1=" << x1 << ";" << "x2=" << x2 << endl;
}
//??????????
else if(deta==0) cout << "x1=x2=" << t << endl;
else
{
deta = -deta;
if(t==0) t = 0; //??0?????????
cout << "x1=" << t << "+" << sqrt(deta) / (2 * a ) << "i;x2="
<< t << "-" << sqrt(deta) / ( 2 * a ) << "i" << endl; //?????
}
}
return 0;
}
|
27
|
13,473 |
int main()
{
int n,i;
double a,b,c,x[100][5],dt;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%lf %lf %lf",&a,&b,&c);
dt=b*b-4*a*c;
if(dt>0.0)
{
x[i][0]=1;
x[i][1]=(-b + sqrt(dt))/(2*a);
x[i][2]=(-b - sqrt(dt))/(2*a);
}
else if(dt==0)
{
x[i][0]=2;
x[i][1]=(-b)/(2*a);
}
else
{
x[i][0]=3;
x[i][1]=(-b)/(2*a);
x[i][3]=(sqrt(-dt))/(2*a);
x[i][2]=(-b)/(2*a);
x[i][4]=(sqrt(-dt))/(2*a);
}
}
for(i=0;i<n;i++)
{
if(x[i][0]==1)
{
printf("x1=%.5f;x2=%.5f\n",x[i][1],x[i][2]);
}
else if(x[i][0]==2)
{
printf("x1=x2=%.5f\n",x[i][1]);
}
else if(x[i][0]==3)
{
if(x[i][1]==-0.0)
x[i][1]=0.0;
if(x[i][2]==-0.0)
x[i][2]=0.0;
printf("x1=%.5f+%.5f",x[i][1],x[i][3],x[i][2],x[i][4]);
printf("i;x2=%.5f-%.5f",x[i][2],x[i][4]);
printf("i\n");
}
}
return 0;
}
|
27
|
13,474 |
double a,b,c;
double x1,x2,p,q;
int n;
int main()
{
cin >> n;
while(n--)
{
cin >> a >> b >> c;
if((b*b-4*a*c)>0)
{
x1 = (0-b+sqrt(b*b-4*a*c))/(a*2);
x2 = (0-b-sqrt(b*b-4*a*c))/(a*2);
cout << setprecision(5) << fixed;
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
else if((b*b-4*a*c)==0)
{
x1 = (0-b+sqrt(b*b-4*a*c))/(a*2);
x2 = (0-b-sqrt(b*b-4*a*c))/(a*2);
cout << setprecision(5) << fixed;
printf("x1=x2=%.5f\n",x1);
}
else if((b*b-4*a*c)<0)
{
x1 = (0-b)/(a*2);
p=sqrt(4*a*c-b*b)/(a*2);
x2 = (0-b)/(a*2);
q=-sqrt(4*a*c-b*b)/(a*2);
cout << setprecision(5) << fixed;
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",x1,p,x2,p);
}
}
return 0;
}
|
27
|
13,475 |
int main()
{
double a, b, c, delta, x1, x2;
int n;
scanf("%d", &n );
while( n-- ) {
scanf("%lf %lf %lf", &a, &b, &c );
delta = b * b - 4 * a * c;
if( delta < 0 ) {
delta = sqrt(-delta) / 2 / a;
printf("x1=%.5lf+%.5lfi;x2=%.5lf%.5lfi\n", -b/2/a, delta, -b/2/a, -delta );
} else if( delta > 0 ){
delta = sqrt(delta)/2/a;
printf("x1=%.5lf;x2=%.5lf\n", -b/2/a+delta, -b/2/a-delta );
} else {
printf("x1=x2=%.5lf\n", -b/a/2 );
}
}
}
|
27
|
13,476 |
int main()
{
int n; //????n????????
double a, b, c, x1, x2, shi, xu; //?????a,b,c???,x1,x2?????,shi,xu?????
cin >> n; //????????
for ( int p = 1; p <= n; p++ ) //????
{
cin >> a >> b >> c;
if ( b * b - 4 * a * c < 0 ) //????????????0?
{
shi = -b / (2 * a);
xu = sqrt(4 * a * c - b * b) / ( 2 * a ); //???
if (shi == 0)
{
shi = -shi;
}
printf ("x1=""%.5f",shi);
printf ("+""%.5f",xu);
printf ("i;x2=""%.5f",shi);
printf ("-""%.5f",xu);
printf ("i");
printf ("\n");
}
else if ( b * b - 4 * a * c == 0 ) //????????????0?
{
x1 = ( -b + sqrt(b * b - 4 * a * c)) / (2 * a); //???
printf ( "x1=x2=""%.5f",x1);
printf ("\n");
}
else //????????????0?
{
x1 = ( -b + sqrt(b * b - 4 * a * c)) / (2 * a);
x2 = ( -b - sqrt(b * b - 4 * a * c)) / (2 * a); //???
printf ("x1=""%.5f",x1);
printf (";x2=""%.5f",x2);
printf ("\n");
}
}
return 0;
}
|
27
|
13,477 |
int main()
{
int n;
float a,b,c;
cin>>n;
while(n>0){
double x,y,xi,yi,d;
cin>>a>>b>>c;
d=b*b-4*a*c; //?????
if(d>0)
{x =(-b+sqrt(d))/(2*a) ; //d>0?????
y =(-b-sqrt(d))/(2*a) ;
cout<<"x1="<<fixed<<setprecision(5)<<x<<";x2="<<fixed<<setprecision(5)<<y<<endl;
}
else if((d)==0)
{x=(-b)/(2*a);
cout<<"x1=x2="<<fixed<<setprecision(5)<<x<<endl;} //d=0??????
else
{if(b!=0)
x=(-b)/(2*a);
else
x=b/(2*a);
xi=sqrt(-d)/(2*a);
yi=sqrt(-d)/(2*a);
cout<<"x1="<<fixed<<setprecision(5)<<x<<"+"<<fixed<<setprecision(5)
<<xi<<"i;x2="<<fixed<<setprecision(5)<<x<<"-"
<<fixed<<setprecision(5)<<yi<<"i"<<endl; } //d<0?????
n--;
}
return 0;
}
|
27
|
13,478 |
int main()
{
int n;
double a , b ,c , x1 , x2 , t;
cin>>n;
while (n--)
{
cin>>a>>b>>c;
cout<<setprecision(5)<<fixed;
if (b * b - 4 * a * c >= 0)
{
x1 = (-b + sqrt(b * b - 4 * a * c)) / (2 * a);
x2 = (-b - sqrt(b * b - 4 * a * c)) / (2 * a);
if (x1 == x2)
{
cout<<"x1=x2="<<x1<<endl;
}
if (x1 != x2)
{
cout<<"x1="<<x1<<";"<<"x2="<<x2<<endl;
}
}
if (b * b - 4 * a * c < 0)
{
t = -b/(2 * a);
if (abs(t)<1e-6) t=abs(t);
cout<<"x1="<<t<<"+"<<(sqrt(-b * b + 4 * a * c))/(2 * a)<<"i";
cout<<";";
cout<<"x2="<<t<<"-"<<(sqrt(-b * b + 4 * a * c))/(2 * a)<<"i"<<endl;
}
}
return 0;
}
|
27
|
13,479 |
void main()
{
int n,i;
double p,q,t,x1,x2,a,b,c;
scanf("%d",&n);
for (i=0;i<n;i++)
{
scanf("%lf %lf %lf",&a,&b,&c);
p=-b/(2*a);
t=b*b-4*a*c;
if (t>0)
{
q=sqrt(b*b-4*a*c)/(2*a);
x1=p+q;
x2=p-q;
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
else if (t==0)
{
printf("x1=x2=%.5lf\n",p);
}
else if (t<0)
{
q=sqrt(-b*b+4*a*c)/(2*a);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",p,q,p,q);
}
}
}
|
27
|
13,480 |
int main(int argc, char* argv[])
{
int n,r=1;
float a,b,c,a1,a2;
double x1,x2,w;
scanf("%d",&n);
while (r<=n)
{
scanf("%f%f%f",&a,&b,&c);
r++;
x1 = (-b + sqrt(b*b-4*a*c))/(2*a);
x2 = (-b - sqrt(b*b-4*a*c))/(2*a);
if (b*b-4*a*c>0)
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
else
{
if (b*b-4*a*c==0)
printf("x1=x2=%.5lf\n",x1);
else
{
a1 = (-b)/(2*a);
a2 = (-b)/(2*a);
w = sqrt(-(b*b-4*a*c))/(2*a);
if (b!=0)
printf ("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",a1,w,a2,w);
else
printf ("x1=0.00000+%.5lfi;x2=0.00000-%.5lfi\n",w,w);
}
}
}
return 0;
}
|
27
|
13,481 |
//********************************
//*???????????? **
//*????? 1300012707 **
//*???2013.10.9 **
//********************************
int main()
{
double a, b, c, r1, r2, x1, x2;
int n;
cin >> n;
for ( int i = 1; i <= n; i = i + 1)
{
cin >> a >> b >> c;
if ( b == 0)
{
b = -b;
}
if ( ( b * b - 4 * a * c) > 0)
{
x1 = ( -b + sqrt(b * b - 4 * a * c)) / ( 2 * a);
x2 = ( -b - sqrt(b * b - 4 * a * c)) / ( 2 * a);
cout << "x1=";
printf("%.5f", x1);
cout << ";x2=";
printf("%.5f", x2);
cout << endl;
}
else
{
if ( ( b * b - 4 * a * c) < 0)
{
r1 = -b / ( 2 * a);
r2 = sqrt(4 * a * c - b * b) / ( 2 * a);
cout << "x1=";
printf("%.5f", r1);
cout << "+";
printf("%.5f", r2);
cout << "i;x2=";
printf("%.5f", r1);
cout << "-";
printf("%.5f", r2);
cout << "i" << endl;
}
else
{
r1 = -b / ( 2 * a);
cout << "x1=x2=";
printf("%.5f", r1);
cout << endl;
}
}
}
return 0;
}
|
27
|
13,482 |
int main()
{
int n,i,j;
double a[100][3],t;
scanf("%d",&n);
for(i=0;i<n;i++)
{
for(j=0;j<3;j++)
{
scanf("%lf",&a[i][j]);
}
}
for(i=0;i<n;i++)
{
t=-a[i][1]/(2*a[i][0]);
if(a[i][1]==0.0) t=0;
if(a[i][1]*a[i][1]-4*a[i][0]*a[i][2]==0)
printf("x1=x2=%.5lf\n",t);
else if(a[i][1]*a[i][1]-4*a[i][0]*a[i][2]>0)
printf("x1=%.5lf;x2=%.5lf\n",(-a[i][1]+sqrt(a[i][1]*a[i][1]-4*a[i][0]*a[i][2]))/(2*a[i][0]),(-a[i][1]-sqrt(a[i][1]*a[i][1]-4*a[i][0]*a[i][2]))/(2*a[i][0]));
else if(a[i][1]*a[i][1]-4*a[i][0]*a[i][2]<0)
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",t,sqrt(4*a[i][0]*a[i][2]-a[i][1]*a[i][1])/(2*a[i][0]),t,sqrt(4*a[i][0]*a[i][2]-a[i][1]*a[i][1])/(2*a[i][0]));
}
return 0;
}
|
27
|
13,483 |
int main()
{
int n,i;
double x1[100],x2[100],num1[100],num2[100],num3[100];
float a[100],b[100],c[100];
scanf ("%d",&n);
for(i=0;i<n;i++)
scanf("%f %f %f",&a[i],&b[i],&c[i]);
for(i=0;i<n;i++)
{
num1[i]=b[i]*b[i]-4*a[i]*c[i];
if (num1[i]>1e-6)
{
x1[i]=(-b[i]+sqrt(num1[i]))/(2*a[i]);
x2[i]=(-b[i]-sqrt(num1[i]))/(2*a[i]);
printf("x1=%.5f;x2=%.5f\n",x1[i],x2[i]);
}
else if (num1[i]<=1e-6&&num1[i]>=-1e-6)
{
x1[i]=-b[i]/(2*a[i]);
printf("x1=x2=%.5f\n",x1[i]);
}
else
{
num2[i]=-b[i]/(2*a[i]);
num3[i]=sqrt(-num1[i])/(2*a[i]);
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",num2[i],num3[i],num2[i],num3[i]);
}
}
return 0;
}
|
27
|
13,484 |
//****************************************
//*???????????? **
//*?????? 1100012927 **
//*???2011.09.16 **
//****************************************
int main()
{
int n;
double a,b,c,delta,x1,x2,x1r;
cin>>n;
do{cin>>a>>b>>c;
delta=b*b-4*a*c;
if (delta>0) {x1=(-b+sqrt(delta))/(2*a);
x2=(-b-sqrt(delta))/(2*a);
printf("x1=%.5f",x1);
cout<<";";
printf("x2=%.5f",x2);
cout<<""<<endl;}
else if (delta==0) {x1=(b)/(2*a);
printf("x1=x2=%.5f",-x1);
cout<<""<<endl;}
else if (delta<0) {delta=-delta;
x1=(sqrt(delta))/(2*a);
x2=(-sqrt(delta))/(2*a);
x1r=(-b)/(2*a);
if (x1r==0)
{ printf("x1=%.5f+",(-x1r));
printf("%.5fi",x1);
cout<<";";
printf("x2=%.5f",(-x1r));
printf("%.5fi",x2);
cout<<""<<endl;}
else { printf("x1=%.5f+",(x1r));
printf("%.5fi",x1);
cout<<";";
printf("x2=%.5f",(x1r));
printf("%.5fi",x2);
cout<<""<<endl;} }
n=n-1;
}while(n>=1);
return 0;}
|
27
|
13,485 |
//**************************
//*???????????? (1051)**
//*?????? 1200012888 **
//*???2013.10.10**
//**************************
int main()
{
double a , b , c , x1 ,x2; //????a b c????x1 x2
int n; //?????? n
cin>>n; //??n
for (int i = 1 ; i <= n ; i++) //???????????????
{
cin>>a>>b>>c; //?? ?? a b c
if (sqrt(b*b-4*a*c)>0) //??????????
{
x1 = (-b + sqrt(b*b-4*a*c))/(2*a); //??????? x1 x2
x2 = (-b - sqrt(b*b-4*a*c))/(2*a);
cout<<fixed<<setprecision(5)<<"x1="<<x1<<";"<<"x2="<<x2<<endl;
//??x1 x2 ????????
}
else if (sqrt(b*b-4*a*c)==0) //??????
{
x1 = (-b + sqrt(b*b-4*a*c))/(2*a);
x2 = (-b - sqrt(b*b-4*a*c))/(2*a);
cout<<fixed<<setprecision(5)<<"x1=x2="<<x1<<endl;
//??x1=x2=... ????????
}
else //???? ??i????????
{
if ((-b)/(2*a) != 0) //????????????? -0
{
cout<<fixed<<setprecision(5)<<"x1="<<(-b)/(2*a)<<"+"<<sqrt(-b*b+4*a*c)/(2*a)<<"i"<<";";
//?? x1 ? ????? ??????
cout<<fixed<<setprecision(5)<<"x2="<<(-b)/(2*a)<<"-"<<sqrt(-b*b+4*a*c)/(2*a)<<"i"<<endl;
//?? x2 ? ????? ??????
}
else
{
cout<<fixed<<setprecision(5)<<"x1="<<(b)/(2*a)<<"+"<<sqrt(-b*b+4*a*c)/(2*a)<<"i"<<";";
//?? x1 ? ????? ??????
cout<<fixed<<setprecision(5)<<"x2="<<(b)/(2*a)<<"-"<<sqrt(-b*b+4*a*c)/(2*a)<<"i"<<endl;
//?? x2 ? ????? ??????
}
}
}
return 0;
}
|
27
|
13,486 |
//****************************
//**Title:?????????**
//**Author:???1300017687 **
//**Date?2013.10.9 **
//**File?6.cpp **
//****************************
int main()
{
int n; //??n???????
cin >> n; //??n
for ( int i = 1;i <= n; i++) //??i?1?n???
{ //????
double a,b,c; //?????????a,b,c
cin >> a >> b >> c; //??a,b,c
double delta = b * b - 4 * a * c;//?????delta
double line = - b / (2*a); //?????????line?-b/(2*a)
cout << fixed << setprecision(5); //?????cout???????5?
if ( line == -0 ) //??line?-0
line = 0; //??????0 *****?????????0?????*****
if ( delta == 0 ) //??delta?0
cout << "x1=x2=" << line << endl; //??x1=x2=line
else if (delta > 0) //?????delta > 0
cout << "x1=" << line + sqrt(delta)/(2*a) //????x1?x2
<< ";x2="<< line - sqrt(delta)/(2*a)
<< endl;
else //??
cout << "x1=" << line << "+" //????????x1?x2
<< (sqrt(-delta))/(2*a)<< "i;"
<< "x2=" << line << "-"
<< (sqrt(-delta))/(2*a)<< "i"
<< endl;
}
cin.get();
cin.get();
return 0;
}
|
27
|
13,487 |
main()
{
int n,i;
i=0;
double x1,x2;
scanf("%d",&n);
float a[n],b[n],c[n];
double delta,d,e;
while (i<n)
{
scanf("%f %f %f",&a[i],&b[i],&c[i]);
i++;
}
i=0;
while (i<n)
{
delta=(b[i])*(b[i])-4*a[i]*c[i];
if (delta>0)
{
x1=(-b[i]+sqrt(delta))/(2*a[i]);
x2=(-b[i]-sqrt(delta))/(2*a[i]);
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
if (delta==0)
{
x1=-b[i]/(2*a[i]);
printf("x1=x2=%.5f\n",x1);
}
if (delta<0)
{
d=-b[i]/(2*a[i]);
e=sqrt(-delta)/(2*a[i]);
if (b[i]==0)
{
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",-d,e,-d,e);
}
else
{
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",d,e,d,e);
}
}
i++;
}
getchar();getchar();getchar();getchar();
}
|
27
|
13,488 |
int main(int argc, char* argv[])
{
int n;
scanf("%d",&n);
int m;
double a,b,c,x1,x2,dt,xubu,shibu;
for (m=1;m<n+1;m++)
{
scanf("%lf""%lf""%lf",&a,&b,&c);
dt=b*b-4*a*c;
if (dt>0)
{
x1=(-b+sqrt(dt))/(a*2);
x2=(-b-sqrt(dt))/(a*2);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
else if (dt==0)
{
x1=(-b)/(a*2);
printf("x1=x2=%.5lf\n",x1);
}
else if (dt<0)
{
xubu=(sqrt(-dt))/(2*a);
shibu=(-b)/(a*2);
if(shibu==0)
{
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",-shibu,xubu,-shibu,xubu);
}
else if(shibu==-0)
{printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",-shibu,xubu,-shibu,xubu);}
else
{
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",shibu,xubu,shibu,xubu);}
}
}
return 0;
}
|
27
|
13,489 |
int main()
{
int n,t;
scanf("%d",&n);
for(t=0;t<n;t++)
{
float a,b,c;
double p,q,k,x1,x2;
scanf("%f %f %f\n",&a,&b,&c);
if(b*b-4*a*c<0)
{
k=sqrt(-b*b+4*a*c);
p=-b/(2*a);q=k/(2*a);
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",p,q,p,q);
}
else
{
k=sqrt(b*b-4*a*c);
p=-b/(2*a);q=k/(2*a);
x1=p+q;x2=p-q;
if(q==0.0)
printf("x1=x2=%.5f\n",p);
else
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
}
return 0;
}
|
27
|
13,490 |
int main()
{
double a,b,c,d,e,f,k,l;
int g,h;
scanf("%d",&g);
for(h=0;h<g;h++)
{
scanf("%lf %lf %lf",&a,&b,&c);
d=b*b-4*a*c;
if(b==0)
b=-b;
if(d>0)
{
e=(-b+sqrt(b*b-4*a*c))/(2*a);
f=(-b-sqrt(b*b-4*a*c))/(2*a);
if(e<f)
{
l=e;
e=f;
f=l;
}
printf("x1=%.5lf;x2=%.5lf\n",e,f);
}
else if(d==0)
{
e=-b/(2*a);
printf("x1=x2=%.5lf\n",e);
}
else
{
e=(-b)/(2*a);
f=(-b)/(2*a);
k=sqrt(-d)/(2*a);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",e,k,f,k);
}
}
return 0;
}
|
27
|
13,491 |
int main(){
double a[101],b[101],c[101],d,x1,x2;
int j,n;
a[0]=0,b[0]=0,c[0]=0,d=0;
cin >> n;
for(j=1;j<=n;j=j+1)
{
cin >>a[j]>>b[j]>>c[j];
if(b[j]*b[j] -a[j]*c[j]*4 > 0)
{
x1 =(-b[j] + sqrt(b[j]*b[j]-4*a[j]*c[j]))/(2*a[j]);
x2 = (-b[j] - sqrt(b[j]*b[j]-4*a[j]*c[j]))/(2*a[j]);
cout <<"x1=";
printf("%.5f",x1);
cout<<";x2=";
printf("%.5f",x2);
cout<<endl;
}
else if(b[j]*b[j] -a[j]*c[j] *4 == 0)
{
x1 =(-b[j] )/(2*a[j]);
cout <<"x1=x2=";
printf("%.5f",x1);
cout<<endl;
}
else if(b[j]*b[j] -a[j]*c[j] *4 < 0)
{
x1 =(-b[j] )/(2*a[j]);
if (x1>-0.00001&&x1<0.00001)
{
x1 =0;
}
d =(sqrt(4*a[j]*c[j]-b[j]*b[j]))/(2*a[j]);
cout <<"x1=";
printf("%.5f",x1);
cout<<"+";
printf("%.5f",d);
cout <<"i;x2=";
printf("%.5f",x1);
cout<<"-";
printf("%.5f",d);
cout<<"i" <<endl;
}
x1=0;
x2=0;
d =0;
}
return 0;
}
|
27
|
13,492 |
//************************************************************
//*9.14???????????? ***********
//*????? 1100012844 ***********
//*???2011.9.16 ***********
//*?????????,?????100??,??! ***********
//************************************************************
int main()
{
int n,k; //??n,k?????
double a,b,c; //??a,b,c???????
double d,x1,x2,x3; //??d,x1,x2,x3???????
cin >> n; //??????n
for (k=0;k<n;k++) //for?????????
{
cin >> a >> b >> c; //??????a,b,c
d = b*b-4*a*c; //??????????d
if (d>=0) //?????????????0
if (d>0) //???????0,???????
{ x1 = (-b+sqrt(d))/(2*a); //??????x1??
x2 = (-b-sqrt(d))/(2*a); //??????x2??
cout << fixed << setprecision(5) << "x1=" << x1 << ";" << "x2=" << x2 << endl; //??x1,x2??
}
else //??????0,???????
{ x1 = (-b)/(2*a); //??????????
cout << fixed << setprecision(5) << "x1=x2=" << x1 << endl; //????
}
else //???????0,???????
{ x3 = (-b)/(2*a); //?????x3
x1 = sqrt(-d)/(2*a); //?x1?????
x2 = -sqrt(-d)/(2*a); //?x2?????
if (fabs(x3)<0.0000000001) //???????
x3 = 0;
cout << fixed << setprecision(5) << "x1=" << x3 << "+" << x1 << "i" << ";"
<< "x2=" << x3 << x2 << "i" << endl;
}
}
return 0;
}
|
27
|
13,493 |
int main()
{
int n,m;
double x1,x2,p,q;
scanf("%d",&n);
for(m=0;m<n;m++)
{
double a,b,c;
scanf("%lf %lf %lf",&a,&b,&c);
if(b*b-4*a*c>0)
{
x1 = (-b + sqrt(b*b-4*a*c))/(2*a);
x2 = (-b - sqrt(b*b-4*a*c))/(2*a);
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
else
{ if (b*b-4*a*c==0)
{
x1 = (-b + sqrt(b*b-4*a*c))/(2*a);
printf("x1=x2=%.5f\n",x1);
}
else
{
p=(-b)/(2*a);
q=(sqrt(-b*b+4*a*c))/(2*a);
if(fabs(p)<0.00001)
p=0.00000;
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",p,q,p,q);
}
}
}
}
|
27
|
13,494 |
int main ()
{
int n,i;
double a,b,c,x1,x2,a1,a2,b1,b2;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%lf%lf%lf",&a,&b,&c);
if(b*b-4*a*c>0)
{
x1=(-b+sqrt(b*b-4*a*c))/(2*a);
x2=(-b-sqrt(b*b-4*a*c))/(2*a);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
else if(b*b-4*a*c==0)
{
x1=(-b+sqrt(b*b-4*a*c))/(2*a);
printf("x1=x2=%.5lf\n",x1);
}
else
{
a1=(-b)/(2*a);
a2=(-b)/(2*a);
b1=sqrt(4*a*c-b*b)/(2*a);
b2=sqrt(4*a*c-b*b)/(2*a);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",a1,b1,a2,b2);
}
}
return 0;
}
|
27
|
13,495 |
int main()
{
int n, m, p;
scanf("%d",&n);
double a[100][6];
p = 1;
m = 1;
while(m <= n)
{
scanf("%lf %lf %lf", &a[m][1],&a[m][2],&a[m][3]);
m++;
}
while(p <= n)
{
a[p][4] = a[p][2] * a[p][2] - 4 * a[p][1] * a[p][3];
if(0 == a[p][4])
{
a[p][5] = -a[p][2] / (2 * a[p][1]);
printf("x1=x2=%.5f\n",a[p][5]);
}
else if(a[p][4] > 0)
{
if (a[p][2] != 0)
{
a[p][5] = (-a[p][2] + sqrt(a[p][4])) / (2 * a[p][1]);
a[p][6] = (-a[p][2] - sqrt(a[p][4])) / (2 * a[p][1]);
printf("x1=%.5f;x2=%.5f\n",a[p][5],a[p][6]);
}
if (a[p][2] == 0)
{
a[p][5] = +sqrt(a[p][4]) / (2 * a[p][1]);
a[p][6] = -sqrt(a[p][4]) / (2 * a[p][1]);
printf("x1=%.5f;x2=%.5f\n",a[p][5],a[p][6]);}
}
else
{
a[p][5] = -a[p][2] / (2 * a[p][1]);
a[p][6] = sqrt(-a[p][4]) / (2 * a[p][1]);
if (a[p][5]!=0)
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",a[p][5],a[p][6],a[p][5],a[p][6]);
else
printf("x1=0.00000+%.5fi;x2=0.00000-%.5fi\n",a[p][6],a[p][6]);
}
p++;
}
getchar();getchar();getchar();getchar();
}
|
27
|
13,496 |
int main()
{
int m=0,n;
double a,b,c,d,x1,x2,x1i,x2i;
scanf("%d",&n);
do{
scanf("%lf%lf%lf",&a,&b,&c);
if(b*b-4*a*c>0)
{
x1=(-b + sqrt(b*b-4*a*c))/(2*a);
x2=(-b - sqrt(b*b-4*a*c))/(2*a);
printf("x1=%.5lf;",x1);
printf("x2=%.5lf\n",x2);
}
else if(b*b-4*a*c==0)
{
x1=-b/(2*a);
printf("x1=x2=%.5lf\n",x1);
}
else
{
x1=-b/(2*a);
x1i=sqrt(4*a*c-b*b)/(2*a);
x2=-b/(2*a);
x2i=-sqrt(4*a*c-b*b)/(2*a);
if(b/(2*a)==0)
{
x1=0;
x2=0;
}
printf("x1=%.5lf+%.5lfi;",x1,x1i);
printf("x2=%.5lf%.5lfi\n",x2,x2i);
}
m++;
}while(m<n);
return 0;
}
|
27
|
13,497 |
/*
* ?????????.cpp
*?????????
* Created on: 2012-10-12
* Author: ???
*/
int main()
{
int n,i;
float a,b,c;
double d,e,f,x1,x2; //????
cin>>n; //?????????
for(i=n;i>=1;i--) //??????
{
cin>>a>>b>>c; //???????
d=b*b-4*a*c; //?????
if(d>0) //??????
{
x1=(-b+sqrt(d))/(2*a);
x2=(-b-sqrt(d))/(2*a); //?????
cout<<fixed<<setprecision(5)<<"x1="<<x1+1e-9<<';'<<"x2="<<x2+1e-9<<endl;
}
if(d==0) //??????
{
x1=-b/(2*a);
cout<<fixed<<setprecision(5)<<"x1=x2="<<x1+1e-9<<endl; //x1??x2
}
if(d<0) //??????
{
e=(sqrt(-d))/(2*a);
f=-b/(2*a);
if(f<0&&f>-0.000001)
{f=0;}
cout<<fixed<<setprecision(5)<<"x1="<<f+1e-9<<"+"<<e+1e-9<<"i"<<";"<<"x2="<<f+1e-9<<-e+1e-9<<"i"<<endl;
}
}
return 0;
} //????
|
27
|
13,498 |
/*
* practice.cpp
*
* Created on: 2014-5-23
* Author: de
*/
int main(){
double a,b,c,x1,x2,i;
int cases;
cin>>cases;
for(int j=0;j<cases;j++){
cin>>a>>b>>c;
if(b*b-4*a*c>0){
if(b==0){
x1 = (sqrt(0-4*a*c))/(2*a);
x2 = (0 - sqrt(0-4*a*c))/(2*a);
}
else
{x1 = (-b + sqrt(b*b-4*a*c))/(2*a);
x2 = (-b - sqrt(b*b-4*a*c))/(2*a);}
cout<<fixed<<setprecision(5)<<"x1="<<x1<<";x2="<<x2<<endl;
}
if(b*b-4*a*c==0){
if(b==0)x1=0.0;
else x1 = (-b/(2*a));
cout<<fixed<<setprecision(5)<<"x1=x2="<<x1<<endl;
}
if(b*b-4*a*c<0){
if(b==0){
x1=0.0;
i=sqrt(4*a*c)/(2*a);
}
else
{x1 = (-b/(2*a));
i=sqrt(4*a*c-b*b)/(2*a);}
cout<<fixed<<setprecision(5)<<"x1="<<x1<<"+"<<i<<"i;x2="<<x1<<"-"<<i<<"i"<<endl;
}
}
return 0;
}
|
27
|
13,499 |
main()
{
int n,i;
float a,b,c;
double x,y,z,x1,x2;
scanf("%d",&n);
for(i=1;i<=n;i++)
{
scanf("%f %f %f",&a,&b,&c);
if(fabs(b*b-4*a*c)<1e-6)
{
x1=-b/(2*a),x2=-b/(2*a);
printf("x1=x2=%.5f\n",x1);
}
else if(b*b-4*a*c>1e-6)
{
x1=(-b + sqrt(b*b-4*a*c))/(2*a),x2=(-b - sqrt(b*b-4*a*c))/(2*a);
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
else
{
x=-b/(2*a),y=sqrt(4*a*c-b*b)/(2*a);
if(fabs(x)<1e-6)x=-x;
printf("x1=%0.5f+%0.5fi;x2=%0.5f-%0.5fi\n",x,y,x,y);
}
}
}
|
27
|
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