id
int32 0
32.5k
| code
stringlengths 95
8.4k
| label
stringclasses 65
values |
|---|---|---|
13,300 |
void main()
{
double x1[32768],x2[32768],xi[32768],a,b,c,t;
int n,i;
scanf("%d",&n);
for (i=1;i<=n;i++)
{
scanf("%lf %lf %lf",&a,&b,&c);
t=b*b-4*a*c;
if (t>=0)
{
x1[i]=(-b+sqrt(t))/(2*a);
x2[i]=(-b-sqrt(t))/(2*a);
if(fabs(x1[i])<1e-6) x1[i]=0;
if(fabs(x2[i])<1e-6) x2[i]=0;
}
else if(t<0)
{
x1[i]=x2[i]=-b/(2*a);
if(fabs(x1[i])<1e-6) x1[i]=x2[i]=0;
xi[i]=sqrt(-t)/(2*a);
}
}
for (i=1;i<=n;i++)
{
if(fabs(xi[i])<=1e-6)
{
if(x1[i]==x2[i]) printf("x1=x2=%.5f\n",x1[i],x2[i]);
else printf("x1=%.5f;x2=%.5f\n",x1[i],x2[i]);
}
else printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",x1[i],xi[i],x2[i],xi[i]);
}
}
|
27
|
13,301 |
int main()
{
double a[100],b[100],c[100],d,e,f;
int n,i;
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++){
d=b[i]*b[i]-4*a[i]*c[i];
e=-b[i]/(2*a[i]);
if(e==0){e=0.00000;}
f=sqrt(fabs(d))/(2*a[i]);
if(d==0){printf("x1=x2=%.5lf", e);}
if(d>0){printf("x1=%.5lf;x2=%.5lf", (e+f),(e-f));}
if(d<0){printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi", e, f, e, f);}
if(i<n){printf("\n");}
}
return 0;
}
|
27
|
13,302 |
/*?????????
???
2012?10?7?10:46:21*/
int main()
{
int n,i;
float a[1000],b[1000],c[1000];
double x1[1000],x2[1000],d[1000],D[1000],y[1000];
cin>>n; //??????n
for(i=1;i<=n;i++) //???i=n???
{
cin>>a[i]>>b[i]>>c[i]; //??3???
d[i]=b[i]*b[i]-4*a[i]*c[i]; //???
if(d[i]==0) //???=0?????
{x1[i]=(0-b[i])/(2*a[i]);
cout<<fixed<<setprecision(5)<<"x1=x2="<<x1[i]<<endl;
}
if(d[i]>0) //???>0 ???????
{x1[i]=(sqrt(d[i])-b[i])/(2*a[i]),x2[i]=(0-sqrt(d[i])-b[i])/(2*a[i]);
cout<<fixed<<setprecision(5)<<"x1="<<x1[i]<<";x2="<<x2[i]<<endl;
}
if(d[i]<0) //???<0???????
{D[i]=0-d[i];
x1[i]=sqrt(D[i])/(2*a[i]);
y[i]=(0-b[i])/(2*a[i]);
cout<<fixed<<setprecision(5)<<"x1="<<y[i]<<"+"<< x1[i]<<"i;x2="<<y[i]<<"-"<<x1[i]<<"i"<<endl;
}}
return 0;
}
|
27
|
13,303 |
int main()
{
double a, b, c, d, x1, x2, t;
int i, n;
cin >> n;
for (i = 1; i <= n; i++)
{
cin >> a >> b >> c;
x1 = x2 = t = 0.0;
d = b * b - 4 * a * c;
if (fabs(d) < 1E-6)
{
x1 = -1 * b / (2 * a);
if (fabs (x1) < 1E-6)
x1 = fabs (x1);
cout << fixed << setprecision(5) << "x1=x2=" << x1 << endl;
}
else
{
if (d < 0)
{
x1 = -1 * b / (2 * a);
if (fabs (x1) < 1E-6)
x1 = fabs (x1);
t = sqrt (fabs (d)) / (2 * a);
cout << fixed << setprecision(5) << "x1=" << x1 << "+" << t << "i;"
<< "x2=" << x1 << "-" << t << "i" << endl;
}
else
{
t = sqrt (d) / (2 * a);
x1 = -1 * b / (2 * a) + t;
x2 = -1 * b / (2 * a) - t;
if (fabs (x1) < 1E-6)
x1 = fabs (x1);
if (fabs (x2) < 1E-6)
x2 = fabs (x2);
cout << fixed << setprecision(5) << "x1=" << x1 << ";" << "x2=" << x2 << endl;
}
}
}
return 0;
}
|
27
|
13,304 |
int main()
{
int n, i;
double a, b, c, 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)
{
printf("x1=%.5f;x2=%.5f\n", (-b+sqrt(dt))/(2*a), (-b-sqrt(dt))/(2*a));
}
else if(dt==0)
{
if(b==0)
{
printf("x1=x2=0\n");
}
else
{
printf("x1=x2=%.5f\n", -b/(2*a));
}
}
else
{
dt=-dt;
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n", -b/(2*a), sqrt(dt)/(2*a), -b/(2*a), sqrt(dt)/(2*a));
}
}
return 0;
}
|
27
|
13,305 |
int main(int argc, char* argv[])
{
int n;
scanf("%d",&n);
double p[10][3];
for(int i=0;i<n;i++){
double a,b,c;
p[i][0]=a;
p[i][1]=b;
p[i][2]=c;
scanf("%lf %lf %lf",&a,&b,&c);
double x1,x2;
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);
x2=(-b - sqrt(b*b-4*a*c))/(2*a);
printf("x1=x2=%.5f\n",x1);
}
else if((b*b-4*a*c)<0){
double d,e;
if(b!=0){
d=-b/(2*a);
}
else if(b==0){
d=b/(2*a);
}
e=sqrt(4*a*c-b*b)/(2*a);
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",d,e,d,e);
}
else;
}
return 0;
}
|
27
|
13,306 |
int main()
{
double a,b,c,x1,x2,n,m;
scanf("%lf",&n);
for(m=1;m<=n;m++)
{
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=%.5lf;x2=%.5lf\n",((0-b) + sqrt(b*b-4*a*c))/(2*a),((0-b) - sqrt(b*b-4*a*c))/(2*a) ) ;
}
else if(b*b-4*a*c==0)
{
printf("x1=x2=%.5lf\n",x1);
}
else
{
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
|
13,307 |
int main()
{
int n, i;
double a, b, c;
double x1, x2, real,imaginary;
scanf("%d", &n);
double temp;
for( i=0; i<n; i++)
{
scanf("%lf%lf%lf", &a, &b, &c);
temp = b*b - 4*a*c;
if( temp >0 )
{
x1 = (-b+sqrt(temp))/(2*a);
x2 = (-b-sqrt(temp))/(2*a);
printf("x1=%.5f;x2=%.5f\n", x1, x2);
}
else if( temp == 0 )
{
x1 = -b/(2*a);
printf("x1=x2=%.5f\n", x1);
}
else
{
real =-b/(2*a);
imaginary = sqrt(-temp)/(2*a);
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n", real, imaginary, real, imaginary);
}
}
}
|
27
|
13,308 |
void main()
{
int n,i;
double a[100],b[100],c[100],x1,x2;
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(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]);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
else if(b[i]*b[i]-4*a[i]*c[i]==0)
{
x1=x2=(-b[i])/(2*a[i]);
printf("x1=x2=%.5lf\n",x1);
}
else
{
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);
}
}
}
|
27
|
13,309 |
int main()
{
int n,i;
double a,b,c,x1,x2,s,t;
scanf("%d\n",&n);
for(i=1;i<=n;i++)
{
scanf("%lf%lf%lf\n",&a,&b,&c);
if(b*b-4*a*c==0)
{
x1=(-b+sqrt(b*b-4*a*c))/(2*a);
printf("x1=x2=%.5f\n",x1);
}
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);
}
if(b*b-4*a*c<0)
{
s=(sqrt(4*a*c-b*b))/(2*a);
t=((-1.0)*b)/(2*a);
if(t!=0)
{
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",t,s,t,s);
}
if(t==0)
{
printf("x1=0.00000+%.5fi;x2=0.00000-%.5fi\n",s,s);
}
}
}
}
|
27
|
13,310 |
int main(){
int n;cin >> n;
double a,b,c,x1,x2;
while(n--){
cin >> a >> b >> c;
if((b*b-4*a*c)>0){
x1 = (-b)/(2*a);
x2 = (sqrt(b*b-4*a*c))/(2*a);
printf("x1=%.5f;x2=%.5f\n",x1+x2,x1-x2);
}else if((b*b-4*a*c)<0){
x1 = (0-b)/(2*a);
//if(x1 == 0) x1 = 0;
x2 = (sqrt(4*a*c-b*b))/(2*a);
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",x1,x2,x1,x2);
} else{
printf("x1=x2=%.5f\n",(-b)/(2*a));
}
}
return 0;
}
|
27
|
13,311 |
/****************************
*file:6.cpp
*author:|?
*time:2013-10-9
*description:
*??????????????
*****************************/
int main()
{
int n; //??????n???n?????
cin >> n;
double a[n], b[n], c[n], x[n], y[n]; //???????a,b,c,x,y;?????????????????????x,y?????
double p[n];//???????p????????????
for (int i = 0; i < n; i++)
{
cin >> a[i] >> b[i] >> c[i]; //????
}
for (int i = 0; i < n; i++)
{
p[i] = b[i] * b[i] - 4 * a[i] * c[i]; //p[i]????
x[i] = b[i] / (2 * a[i]); //?????????????x[i]
if (p[i] > 0) //?????0
{
y[i] = sqrt(p[i]) / (2 * a[i]); //????????y[i]
cout << "x1=" << fixed << setprecision(5) << - x[i] + y[i] <<
";x2=" << - x[i] - y[i] << endl; //??????????5???
}
if (p[i] < 0) //?????0
{
y[i] = sqrt(-p[i]) / (2 * a[i]); //??y[i]?????????
if (x[i] == 0) //?????????x[i]?0???????-0????x[i]==0???????????
{
cout << "x1=" << 0.00000 << '+' << abs(y[i]) << 'i' <<
";x2=" << 0.00000 << '-' << abs(y[i]) << 'i' << endl;
} //????????????????5?????????0.00000
else
cout << "x1=" << fixed << setprecision(5) << -x[i] << '+' << abs(y[i])
<< 'i' << ";x2=" << -x[i] << '-' << abs(y[i]) << 'i' << endl;
} //?x[i]??0???????-0????????????????5???
if (p[i] == 0) //?????0???
cout << "x1=x2=" << fixed << setprecision(5) << -x[i] <<endl;//????????????5???
}
return 0;
}
|
27
|
13,312 |
int main()
{
int n,i;
double a[100],b[100],c[100],x1,x2,p,q;
scanf("%d",&n);
for(i=0;i<=n-1;i++)
{
scanf("%lf%lf%lf",&a[i],&b[i],&c[i]);
}
for(i=0;i<=n-1;i++)
{
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]) ;
printf("x1=%.5lf;x2=%.5lf\n", x1,x2);
}
if(b[i]*b[i]-4*a[i]*c[i]==0)
{
x1=(-b[i])/(2*a[i]) ;
printf("x1=x2=%.5lf\n",x1);
}
if(b[i]*b[i]-4*a[i]*c[i]<0)
{
p=(-b[i])/(2*a[i]) ;
q=sqrt(4*a[i]*c[i]-b[i]*b[i])/(2*a[i]);
if(p==0)
{
printf("x1=0.00000+%.5lfi;x2=0.00000-%.5lfi\n",q,q);
}
else
{
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",p,q,p,q);
}
}
}
return 0;
}
|
27
|
13,313 |
int main()
{int n;
float a,b,c,delta,e;
float x1,x2;
int i;
cin>>n;
for (i=0;i<n;i++)
{
cin>>a>>b>>c;
e=(b==0)?0:-b/(2*a);
delta=(b*b-4*a*c)/(2*a);
if(delta>0)
{x1=e+ sqrt(b*b-4*a*c)/(2*a);
x2=e- sqrt(b*b-4*a*c)/(2*a);
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
else if(delta==0)
{
printf("x1=x2=%.5f\n",e);
}
else {
x2= sqrt((-1)*(b*b-4*a*c))/(2*a);
if (e==-0)
e=0;
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",e,x2,e,x2);}
}
return 0;
}
|
27
|
13,314 |
main()
{
int n,i;
float a,b,c,delta;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%f %f %f",&a,&b,&c);
delta=b*b-4*a*c;
if(fabs(delta)<1e-8)
{ if(fabs(b)<1e-8)
printf("x1=x2=%.5f\n",-b/(2*a)+1e-8);
else
printf("x1=x2=%.5f\n",-b/(2*a));}
if(delta>1e-8)
printf("x1=%.5f;x2=%.5f\n",(-b+sqrt(delta))/(2*a)+1e-8,(-b-sqrt(delta))/(2*a)+1e-8);
if(delta<-1e-8)
{
if(a>0)
{ if(fabs(b)<1e-8)
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",-b/(2*a)+1e-8,sqrt(-delta)/(2*a),-b/(2*a)+1e-8,sqrt(-delta)/(2*a));
else printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",-b/(2*a),sqrt(-delta)/(2*a),-b/(2*a),sqrt(-delta)/(2*a));}
else
{ if(fabs(b)<1e-8)
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",-b/(2*a)+1e-8,-sqrt(-delta)/(2*a),-b/(2*a)+1e-8,-sqrt(-delta)/(2*a));
else printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",-b/(2*a),-sqrt(-delta)/(2*a),-b/(2*a),-sqrt(-delta)/(2*a));}
}
}
return 0;
}
|
27
|
13,315 |
int main()
{
int n,i,j;
double a[100][3],x1,x2,y;
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++)
{
if(a[i][1]*a[i][1]-4*a[i][0]*a[i][2]>0)
{
x1=(-a[i][1]+sqrt(a[i][1]*a[i][1]-4*a[i][0]*a[i][2]))/(2*a[i][0]);
x2=(-a[i][1]-sqrt(a[i][1]*a[i][1]-4*a[i][0]*a[i][2]))/(2*a[i][0]);
printf("x1=%.5lf;",x1);
printf("x2=%.5lf\n",x2);
}
if(a[i][1]*a[i][1]-4*a[i][0]*a[i][2]==0)
{
x1=(-a[i][1])/(2*a[i][0]);
printf("x1=x2=%.5lf\n",x1);
}
if(a[i][1]*a[i][1]-4*a[i][0]*a[i][2]<0)
{
if(a[i][1]==0)
{
y=(sqrt(-a[i][1]*a[i][1]+4*a[i][0]*a[i][2]))/(2*a[i][0]);
printf("x1=0.00000+%.5lfi;",y);
printf("x2=0.00000-%.5lfi\n",y);
}
else if(a[i][1]!=0)
{
x1=(-a[i][1])/(2*a[i][0]);
y=(sqrt(-a[i][1]*a[i][1]+4*a[i][0]*a[i][2]))/(2*a[i][0]);
printf("x1=%.5lf+%.5lfi;",x1,y);
printf("x2=%.5lf-%.5lfi\n",x1,y);
}
}
}
return 0;
}
|
27
|
13,316 |
main()
{
int n,l;
scanf("%d",&n);
double a[100][5],b[100][6];
for(l=0;l<=n-1;l++)
{
scanf("%lf %lf %lf",&a[l][0],&a[l][1],&a[l][2]);
a[l][3]=a[l][1]*a[l][1]-4*a[l][0]*a[l][2];
if(a[l][3]>0)
{
b[l][0]=(-a[l][1] + sqrt(a[l][1]*a[l][1]-4*a[l][0]*a[l][2]))/(2*a[l][0]) ;
b[l][1]=(-a[l][1] - sqrt(a[l][1]*a[l][1]-4*a[l][0]*a[l][2]))/(2*a[l][0]) ;
}
else
{
if(a[l][3]==0)
{
b[l][0]=-a[l][1]/(2*a[l][0]);
}
else
{
b[l][0]=-a[l][1]/(2*a[l][0]);
if(b[l][0]==0)
{b[l][0]=0;}
b[l][1]=(sqrt(4*a[l][0]*a[l][2]-a[l][1]*a[l][1]))/(2*a[l][0]);
}
}
}
for(l=0;l<=n-1;l++)
{
if(a[l][3]>0)
{
printf("x1=%.5lf;x2=%.5lf\n",b[l][0], b[l][1]);
}
else
{
if(a[l][3]==0)
{
printf("x1=x2=%.5lf\n", b[l][0]);
}
else
{
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",b[l][0], b[l][1], b[l][0],b[l][1]);
}
}
}
getchar();
getchar();
}
|
27
|
13,317 |
int main(int argc, char* argv[])
{
double a,b,c;
int n;
double x1,x2,m,p,q;
int i=0;
scanf ("%d",&n);
for (i=0;i<n;i++)
{ scanf ("%lf%lf%lf",&a,&b,&c);
m=b*b-4*a*c;
if (m==0)
{
x1=(-b)/(2*a);
x2=(-b)/(2*a);
printf ("x1=x2=%.5lf\n",x1);
}
if (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);
}
if (m<0)
{
p=(-b)/(2*a) ;
q= (sqrt(-b*b+4*a*c)/(2*a));
printf ("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",p,q,p,q);
}
}
return 0;
}
|
27
|
13,318 |
int main()
{
int n=0;
int k=0;//????k
cin>>n;
cout.precision(5); //5?
cout<<fixed; //?????0
for (k=0;k<n;k++)//????n??
{
float a,b,c;
cin>>a>>b>>c;
if (a==7&&b==631&&c==25.5)
cout<<"x1=-0.04043;x2=-90.10243"<<endl;
else if (b*b-4*a*c==0)
cout<<"x1=x2="<<-b/(2*a)<<endl;
else
if (b*b-4*a*c>0)
cout<<"x1="<<((-b + sqrt(b*b-4*a*c))/(2*a))<<";x2="<<setprecision(5)<<((-b-sqrt(b*b-4*a*c))/(2*a))<<endl;
else if(b==0)
{
cout<<"x1="<<b/(2*a)<<"+"<<(sqrt(4*a*c-b*b)/(2*a))<<"i";
cout<<";x2="<<b/(2*a)<<"-"<<(sqrt(4*a*c-b*b)/(2*a))<<"i"<<endl;
}
else if(b*b-4*a*c<0)
{
cout<<"x1="<<-b/(2*a)<<"+"<<(sqrt(4*a*c-b*b)/(2*a))<<"i";
cout<<";x2="<<-b/(2*a)<<"-"<<(sqrt(4*a*c-b*b)/(2*a))<<"i"<<endl;
}
}
return 0;
}
|
27
|
13,319 |
int main() {
double derta,a,b,c;
int n,i;
cin >> n;
for (i=0;i<n;i++)
{
cin >> a >> b >> c;
derta=b*b-4*a*c;
cout.precision(5);
cout << fixed;
if (derta==0)
cout << "x1=x2=" <<b/(-2*a)<<endl;
else if (derta>0)
cout << "x1=" << (-b+sqrt(derta))/(2*a) << ';' << "x2=" << (-b-sqrt(derta))/(2*a)<<endl;
else if (b==0) cout << "x1=" <<b<<'+'<<sqrt(-derta)/(2*a)<<'i'<<';'<< "x2="<<b<<'-'<<sqrt(-derta)/(2*a)<<'i'<<endl;
else cout << "x1=" <<-b/(2*a)<<'+'<<sqrt(-derta)/(2*a)<<'i'<<';'<< "x2="<<-b/(2*a)<<'-'<<sqrt(-derta)/(2*a)<<'i'<<endl;
}
return 0;
}
|
27
|
13,320 |
//***********************************
//* ????6.cpp *
//* ????? *
//* ???2013.10.9 *
//* ???????????? *
//***********************************
int main()
{
int n , i ;
double root1 , root2, a , b , c ;
cin >> n ;
for (i = 0 ; i < n ; i++)
{
cin >> a >> b >> c ;
cout << fixed;
if ( b * b - 4.0 * a * c > 0)
{
root1 = ( -b + sqrt( b * b - 4 * a * c ))/( 2 * a ) ;
root2 = ( -b - sqrt( b * b - 4 * a * c ))/( 2 * a ) ;
cout << setprecision(5) << "x1=" << root1 << ";x2=" << root2 << endl ;
}
else if ( b * b - 4.0 * a * c == 0)
{
cout << setprecision(5) << "x1=x2=" << -b/(2*a) <<endl;
}
else
{
if (b == 0.0)
{
b= -b ;
}
root1 = sqrt( -b * b + 4 * a * c )/( 2 * a );
root2 = sqrt( -b * b + 4 * a * c )/( 2 * a );
cout << setprecision(5) << "x1=" << -b/(2*a) << "+" << root1 << "i;x2=" << -b/(2*a) << "-" << root2 << "i" << endl ;
}
}
return 0 ;
}
|
27
|
13,321 |
int main()
{
int n,i;
double result[1000][3];
double a, b, c;
scanf("%d",&n);
for (i=0;i<n;i++)
{
scanf("%lf%lf%lf", &a, &b ,&c);
if (b*b-4*a*c>0)
{ result[i][0]=1;
result[i][1]=(-b + (sqrt(b*b-4*a*c)))/(2*a);
result[i][2]=(-b - (sqrt(b*b-4*a*c)))/(2*a);
}
else if (b*b-4*a*c<0)
{
result[i][0]=2;
result[i][1]=(-b)/(2*a);
result[i][2]=(sqrt(4*a*c-b*b))/(2*a);
}
else
{
result[i][0]=3;
result[i][1]=(-b + sqrt(b*b-4*a*c))/(2*a);
}
}
for (i=0;i<n;i++)
{
if ((int)result[i][0]==1)
{
printf("x1=%.5f;x2=%.5f\n", result[i][1],result[i][2]);
}
else if ((int)result[i][0]==2)
{
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n", result[i][1],result[i][2],result[i][1],result[i][2]);
}
else
{
printf("x1=x2=%.5f\n", result[i][1]);
}
}
return 0;
}
|
27
|
13,322 |
int main()
{
int i,n;
scanf("%d\n",&n);
double x1[99],x2[99],a[99],b[99],c[99],disc[99],realpart[99],imagpart[99];
for(i=0;i<n;i++)
scanf("%lf %lf %lf",&a[i],&b[i],&c[i]);
for(i=0;i<n;i++)
{
disc[i]=b[i]*b[i]-4*a[i]*c[i];
if(disc[i]==0) printf("x1=x2=%.5lf\n",-b[i]/(2*a[i]));
else if(disc[i]>0)
{
x1[i]=(-b[i]+sqrt(disc[i]))/(2*a[i]);
x2[i]=(-b[i]-sqrt(disc[i]))/(2*a[i]);
printf("x1=%.5lf;x2=%.5lf\n",x1[i],x2[i]);
}
else
{
realpart[i]=-b[i]/(2*a[i]);
imagpart[i]=sqrt(-disc[i])/(2*a[i]);
(b[i]==0)?printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",-realpart[i],imagpart[i],-realpart[i],imagpart[i]):printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",realpart[i],imagpart[i],realpart[i],imagpart[i]);
}
};
return 0;
}
|
27
|
13,323 |
void main()
{
int j,n;
scanf("%d",&n);
double a[100],b[100],c[100],deta[100],x1[100],x2[100],real[100],inmag[100];
for(j=0;j<=n-1;j++)
{
scanf("%lf%lf%lf",&a[j],&b[j],&c[j]);
deta[j]=b[j]*b[j]-4*a[j]*c[j];
}
for(j=0;j<=n-1;j++)
{
if(fabs(deta[j])<1e-6)
{if(b[j]!=0)
printf("x1=x2=%.5lf\n",-b[j]/(2*a[j]));
else printf("x1=x2=%.5lf\n",b[j]/(2*a[j]));
}
else{
if((deta[j])>1e-6)
{if(b[j]!=0)
{ x1[j]=(-b[j]+sqrt(deta[j]))/(2*a[j]);
x2[j]=(-b[j]-sqrt(deta[j]))/(2*a[j]);
printf("x1=%.5lf;x2=%.5lf\n",x1[j],x2[j]);}
else {x1[j]=(b[j]+sqrt(deta[j]))/(2*a[j]);
x2[j]=(b[j]-sqrt(deta[j]))/(2*a[j]);
printf("x1=%.5lf;x2=%.5lf\n",x1[j],x2[j]);
}}
else
{if(b[j]!=0)
{real[j]=-b[j]/(2*a[j]);
inmag[j]=sqrt(-deta[j])/(2*a[j]);
printf("x1=%.5lf+%.5lfi;",real[j],inmag[j]);
printf("x2=%.5lf-%.5lfi\n",real[j],inmag[j]);}
else{ real[j]=b[j]/(2*a[j]);
inmag[j]=sqrt(-deta[j])/(2*a[j]);
printf("x1=%.5lf+%.5lfi;",real[j],inmag[j]);
printf("x2=%.5lf-%.5lfi\n",real[j],inmag[j]);}
}
}
}
}
|
27
|
13,324 |
int main()
{
int i,n;
cin>>n;
for(i=1;i<=n;i++)
{
double a,b,c;
cin>>a>>b>>c;
if((b*b-4*a*c)>0)
{
printf("x1=%.5f", (-b +sqrt(b*b-4*a*c))/(2*a));
cout<<";";
printf("x2=%.5f",(-b-sqrt(b*b-4*a*c))/(2*a));
cout<<endl;
}
if((b*b-4*a*c)==0)
{
printf("x1=x2=%.5f",-b/(2*a));
cout<<endl;
}
if((b*b-4*a*c)<0)
{
if(b==0)
{
printf("x1=0.00000+%.5fi",sqrt(4*a*c-b*b)/(2*a));
cout<<";";
printf("x2=0.00000-%.5fi",sqrt(4*a*c-b*b)/(2*a));
cout<<endl;
}
else{
printf("x1=%.5f+%.5fi",-b/(2*a),sqrt(4*a*c-b*b)/(2*a));
cout<<";";
printf("x2=%.5f-%.5fi",-b/(2*a),sqrt(4*a*c-b*b)/(2*a));
cout<<endl;
}
}
}
return 0;
}
|
27
|
13,325 |
main()
{
int n,i;
double a[100],b[100],c[100],d,x1,x2;
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((b[i]*b[i]-4*a[i]*c[i])>=0)
{d=sqrt(b[i]*b[i]-4*a[i]*c[i]);
if(d<=0.0000001&&d>=-0.0000001)
{x1=(-b[i])/(2*a[i]);
printf("x1=x2=%.5f\n",x1);}
else
{x1=(-b[i]+d)/(2*a[i]);
x2=(-b[i]-d)/(2*a[i]);
printf("x1=%.5f;x2=%.5f\n",x1,x2);}}
else
{d=sqrt(-b[i]*b[i]+4*a[i]*c[i]);
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",0-b[i]/(2*a[i]),d/(2*a[i]),0-b[i]/(2*a[i]),d/(2*a[i]));}
}
}
|
27
|
13,326 |
int main()
{
float a,b,c;
double m,n,x,y;
cin>>n;
for(m=1;m<=n;m=m+1){
cin>>a>>b>>c;
if(b*b-4*a*c>=0){
x = (-b + sqrt(b*b-4*a*c))/(2*a);
y = (-b - sqrt(b*b-4*a*c))/(2*a);
if(x!=y)
printf("x1=%.5f;x2=%.5f\n",x,y);
else if(x==y)
printf("x1=x2=%.5f\n",x);}
else if(b*b-4*a*c<0){
x=b/2/a*(-1);
y=(sqrt(-b*b+4*a*c))/2/a;
if(x!=0)
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",x,y,x,y);
else if(x==0)
printf("x1=0.00000+%.5fi;x2=0.00000-%.5fi\n",y,y);
}
}
return 0;
}
|
27
|
13,327 |
int main()
{
int n,i;
double ai,bi,ci,k,x1,x2,d,e;
cin>>n;
for(i=1;i<=n;i++){
cin>>ai>>bi>>ci;
k=bi*bi-4*ai*ci;
if(k>0){
x1=(-bi+sqrt(k))/(2*ai);
x2=(-bi-sqrt(k))/(2*ai);
cout<<fixed<<setprecision(5)<<"x1="<<x1<<";"<<"x2="<<x2<<endl;
}
if(k==0){
x1=x2=(-bi)/(2*ai);
cout<<fixed<<setprecision(5)<<"x1=x2="<<x1<<endl;
}
if(k<0){
d=(-bi)/(2*ai);
e=(sqrt(-k))/(2*ai);
if(d!=0)
cout<<fixed<<setprecision(5)<<"x1="<<d<<"+"<<e<<"i"<<";"<<"x2="<<d<<"-"<<e<<"i"<<endl;
if(d==0)
cout<<fixed<<setprecision(5)<<"x1="<<abs(d)<<"+"<<e<<"i"<<";"<<"x2="<<abs(d)<<"-"<<e<<"i"<<endl;
}
}
return 0;
}
|
27
|
13,328 |
//**************************************
//* ???????????? **
//* ?????? 1300012722 **
//* ???2013.10.10 **
//**************************************
int main()
{
int n , i=1 ; //?????????n
double a , b , c , x1 , x2 , delta , m; //????ax2 + bx + c =0????????????x1?x2?b*b-4*a*c??,-b/(2*a)d??m
cin >> n ; //??n??
while (i<=n)
{
cin >> a >> b >> c ; //???????
delta= b * b - 4 * a * c; //??delta??
if(delta > 0)
{
x1 = ( 0 - b + sqrt(delta) ) / (2 * a) ; //??x1??
x2 = ( 0 - b - sqrt(delta) ) / (2 * a) ; //??x2??
cout << fixed ;
cout << setprecision(5) << "x1=" << x1 << ";" << "x2=" << x2 << endl ; //??x1,x2??????????5?
}
else if(delta==0)
{
m = (0 - b) / ( 2 * a ) ; //??x1?x2??
cout << fixed ;
cout << setprecision(5) << "x1=x2=" << m << endl ; //??x1,x2??????????5?
}
else if(delta<0)
{
m= (0 - b) / ( 2 * a ) ;
cout << fixed ;
cout << setprecision(5) << "x1=" << m << "+" << sqrt(-delta) / (2*a) << "i" << ";" ; //??x1??
cout << setprecision(5) << "x2=" << m << "-" << sqrt(-delta) / (2*a) << "i" << endl; //??x2??
}
i++; //i???1
}
return 0;
}
|
27
|
13,329 |
//x1 = (-b + sqrt(b*b-4*a*c))/(2*a)
//x2 = (-b - sqrt(b*b-4*a*c))/(2*a)
//??????? ax2 + bx + c = 0 ?????a???0?
int main()
{
int n,i;
cin >> n;
for(i = 1;i<=n;i++)
{
double a,b,c,delta,x1,x2;
cin >> a >>b >> c;
delta=b*b-4*a*c;
if(delta >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(delta==0)
{
x1=x2=-b/(2*a);
printf("x1=x2=%.5f\n",x1);
}
else
{
double antidel=fabs(delta);
double d,e,f;
d=(sqrt(antidel))/(2*a);
f=fabs(d);
if(b!=0)e=-b/2/a;
else e=0;
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",e,f,e,f);
}
}
return 0;
}
|
27
|
13,330 |
int main()
{
float a[100],b[100],c[100];
int n,i;
double k,m,p;
scanf("%d",&n);
for (i=1;i<=n;i++)
scanf("%f %f %f",&a[i],&b[i],&c[i]);
for (i=1;i<=n;i++)
{
k=(b[i]*b[i]-4*a[i]*c[i]);
if(k==0)
printf("x1=x2=%.5lf\n",(-b[i])/(2*a[i]));
if(k>0)
printf("x1=%.5lf;x2=%.5lf\n",((-b[i])+sqrt(k))/(2*a[i]),((-b[i])-sqrt(k))/(2*a[i]));
if(k<0)
{
m=(-b[i])/(2*a[i]);
p=sqrt((-k))/(2*a[i]);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",m,p,m,p);
}
}
return 0;
}
|
27
|
13,331 |
int main()
{
int n;
cin>>n;
for(int i=0;i<n;i++)
{
double a,b,c;
cin>>a>>b>>c;
double delta,x1,x2;
delta=b*b-4*a*c;
if(delta>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(delta==0)
{
x1=(-b + sqrt(b*b-4*a*c))/(2*a) ;
cout<<"x1=x2=";
printf("%.5f", x1);
cout<<endl;
}
else if(delta<0)
{
x1 = (-b)/(2*a) ;
if(x1>-0.00001&&x1<=0)
x1=-x1+0.0000001;
double i;
i=sqrt(-delta)/(2*a);
cout<<"x1=";
printf("%.5f", x1);
cout<<"+";
printf("%.5f", i);
cout<<"i;x2=";
printf("%.5f", x1);
cout<<"-";
printf("%.5f", i);
cout<<"i"<<endl;
}
}
return 0;
}
|
27
|
13,332 |
int file0()
{float a,b,c;
scanf("%f%f%f",&a,&b,&c);
double x1,x2,p,e,f;
a=4*a;
b=4*b;
c=4*c;
p=b*b-4*a*c;
if(p>0)
{ x1=(-b+sqrt(p))/(2*a);
x2=(-b-sqrt(p))/(2*a);
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
else if(p==0)
{
x1=x2=(-b+sqrt(p))/2*a;
printf("x1=x2=%.5f\n",x1);
}
else if(p<0)
{
e=-b/(2*a);
f=sqrt(-p)/(2*a);
if(e==-0)
e=0;
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",e,f,e,f);
}
}
main()
{
int n,r;
scanf("%d",&n);
r=0;
for(r=0;r<=n;r++)
{ if(r<n)
file0();
}
return 0;
}
|
27
|
13,333 |
int n;
int main()
{
scanf("%d",&n);
for(int i = 1;i <= n;i ++){
double a,b,c;
double x1 = 0,x2 = 0;
scanf("%lf%lf%lf",&a,&b,&c);
if(b * b - 4 * a * c > 0){
x1 = (-1 * b + sqrt(b * b - 4 * a * c)) / (2 * a);
x2 = (-1 * 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 = (-1 * b + sqrt(b * b - 4 * a * c)) / (2 * a);
printf("x1=x2=%.5lf\n",x1);
}
else{
x1 = sqrt(4 * a * c - b * b) / (2 * a);
if(b == 0)
printf("x1=0.00000+%.5lfi;x2=0.00000-%.5lfi\n",x1,x1);
else
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",(-1 * b) / (2 * a),x1,(-1 * b) / (2 * a),x1);
}
}
}
return 0 ;
}
|
27
|
13,334 |
/*
* 1.cpp
*
* Created on: 2012-10-12
* Author: 99003
*/
int main(){
int n;
double a,b,c,delta;
double x1,x2;
cin>>n;//??????
while(n>0){
cin>>a>>b>>c; //??3???
delta=b*b-4*a*c;//??delta
if(delta>0){ //?????
x1=(0.000-b+sqrt(delta))/2.0/a;
x2=(0.000-b-sqrt(delta))/2.0/a;
cout<<"x1=";//????
printf("%.5f",x1);
cout<<";x2=";
printf("%.5f",x2);
cout<<endl;
}
else if(delta==0){ //??????
x1=(0.00000000000000-b)/2/a;
cout<<"x1=x2=";
printf("%.5f",x1);
cout<<endl;
}
else if(delta<0){ //??????
x1=(0.00000000000000-b)/2/a;
x2=sqrt(0.000000000000-delta)/2/a;
cout<<"x1=";
printf("%.5f",x1);
cout<<"+";
printf("%.5f",x2);
cout<<"i;x2=";
printf("%.5f",x1);
cout<<"-";
printf("%.5f",x2);
cout<<"i"<<endl;
}
n=n-1;
}
return 0;
}
|
27
|
13,335 |
int main()
{
int n,i;
double a=0.0,b=0.0,c=0.0,x1,x2,y1,y2,p;
scanf("%d",&n);
for (i=1;i<=n;i++)
{
scanf("%lf %lf %lf",&a,&b,&c);
p=b*b-4*a*c;
if (p==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);
}
if (p>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);
}
if (p<0)
{
y1=(-b)/(2*a);
y2 = sqrt(-p)/(2*a);
if (y1==-0) y1=0;
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",y1,y2,y1,y2);
}
}
return 0;
}
|
27
|
13,336 |
int main()
{
int n,i;
double a,b,c,k,s,l;
cin>>n;
cout<<fixed;
cout.precision(5);
for(i=1;i<=n;i++)
{
cin>>a>>b>>c;
if(b*b-4*a*c>=0)
{
k=sqrt(b*b-4*a*c);
if(k==0)
{
if(b==0)
s=0;
else
s=-b/(2*a);
cout<<"\nx1=x2="<<s;
}
else
{
s=(-b+k)/(2*a);
l=(-b-k)/(2*a);
cout<<"\nx1="<<s<<";x2="<<l;
}
}
else
{
k=sqrt(4*a*c-b*b);
if(b==0)
s=0;
else
s=-b/(2*a);
l=k/(2*a);
cout<<"\nx1="<<s<<"+"<<l<<"i;x2="<<s<<"-"<<l<<"i";
}
}
return 0;
}
|
27
|
13,337 |
/*
*???: 1.cpp
*??????
*????: 2012-10-30
*??: ???????????
*/
int main ()
{
int n = 0;
double a = 0, b = 0, c = 0, Delta = 0;
cin >> n;
for (int i = 1; i <= n; i++)
{
cin >> a >> b >> c;
Delta = b * b - 4 * a * c;
cout << fixed << setprecision(5);
if (Delta > 0)
cout << "x1=" << ((0 - b) + sqrt(Delta)) / (2 * a) << ";"
<< "x2=" << ((0 - b) - sqrt(Delta)) / (2 * a) << endl;//delta??0
if (Delta == 0)
cout << "x1=x2=" << (0 - b) / (2 * a) << endl;//delta??0
if (Delta < 0)
cout << "x1=" << (0 - b) / (2 * a) << "+" << sqrt((-1) * Delta) / (2 * a) << "i;"
<< "x2=" << (0 - b) / (2 * a) << "-" << sqrt((-1) * Delta) / (2 * a) << "i" << endl;//delta??0
}
return 0;
}
|
27
|
13,338 |
void main()
{
int n,i=1;
double a,b,c,x1,x2,d,e,y,z;
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)
{
e=sqrt(d);
x1=(-b+e)/(2*a);
x2=(-b-e)/(2*a);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
if (d==0)
{
e=sqrt(d);
x1=x2=(-b+e)/(2*a);
printf("x1=x2=%.5lf\n",x1);
}
if (d<0)
{
y=-b/(2*a);
z=sqrt(-d)/(2*a);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",y,z,y,z);
}
}
}
|
27
|
13,339 |
void main()
{
void d(double a,double b,double c);
int n,i;
double a,b,c;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%lf%lf%lf",&a,&b,&c);
d(a,b,c);
}
}
void d(double a,double b,double c)
{
double x1,x2;
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=x2=-b/(2*a);
printf("x1=x2=%.5lf\n",x1);
}
else
{
x1=-b/(2*a);
x2=sqrt(4*a*c-b*b)/(2*a);
printf("x1=%.5lf+%.5lfi;",x1,x2);
printf("x2=%.5lf-%.5lfi\n",x1,x2);
}
}
|
27
|
13,340 |
//****************************************
//*???2013?10?11? *
//*?????? *
//*???????????? *
//****************************************
int main ()
{
int n, i; //??????n????i
double a, b, c, x1, x2, x3, x; //????a?b?c??x1?x2???x3???x
cin >> n; //??????n
for(i=1; i<=n; i++) //i?1???n
{
cin >> a >> b >> c; //????a?b?c
x1 = (-b + sqrt(b*b-4*a*c))/(2*a); //??x1
x2 = (-b - sqrt(b*b-4*a*c))/(2*a); //??x2
if( (b*b-4*a*c)>=0 ) //???????0
{
if(x1==x2) //???????
{
cout << fixed; //???????
cout << setprecision(5) << "x1=x2=" << x1 << endl; //??5????x1?x2
}
if(x1!=x2) //???????
{
cout << fixed; //???????
cout << setprecision(5) << "x1=" << x1 << ";" << "x2=" << x2 << endl; //??5????x1?x2
}
}
else //???????0
{
x3 = (+ sqrt(4*a*c-b*b))/(2*a); //????x3
x = - b/(2*a); //????
if(x == -0) //?????-0
{
x = - x; //?????0
}
cout << fixed; //???????
cout << setprecision(5) << "x1=" << x << "+" << x3 << "i" << ";" << "x2=" << x << "-" << x3 << "i" << endl;
//??5????x1?x2
}
}
return 0;
}
|
27
|
13,341 |
int main()
{
int n , i ,k ;
float a , b , c ;
double x1 , x2 , xa , ya , yb , yc ;
cin >> n ;
for ( k = 1 ; k <= n ; k++ )
{
cin >> a >> b >> c ;
xa = ( -b ) / ( 2 * a ) ;
ya = b * b - 4 * a * c ;
yb = sqrt( ya ) / ( 2 * a ) ;
yc = sqrt( -ya ) / ( 2 * a ) ;
x1 = xa + yb ;
x2 = xa - yb ;
if ( ya < 0 )
{
if ( xa == 0 )
{
cout << "x1=" ;
printf("%.5f", -xa) ;
cout << "+" ;
printf("%.5f", yc) ;
cout << "i;x2=" ;
printf("%.5f", -xa) ;
cout << "-" ;
printf("%.5f", yc) ;
cout << "i" << endl ;
}
else
{
cout << "x1=" ;
printf("%.5f", xa) ;
cout << "+" ;
printf("%.5f", yc) ;
cout << "i;x2=" ;
printf("%.5f", xa) ;
cout << "-" ;
printf("%.5f", yc) ;
cout << "i" << endl ;
}
}
else
if ( x1 != x2 )
{
cout << "x1=" ;
printf("%.5f", x1) ;
cout << ";x2=" ;
printf("%.5f", x2) ;
cout << endl ;
}
else
{
cout << "x1=x2=" ;
printf("%.5f", x1) ;
cout << endl ;
}
}
return 0 ;
}
|
27
|
13,342 |
main()
{
float a,b,c,disc;
double x1,x2,realpart,imagpart;
int i,n;
scanf("%d",&n);
for(i=1;i<=n;i=i+1)
{
scanf("%f%f%f",&a,&b,&c);
disc=b*b-4*a*c;
if(fabs(disc)<=1e-6)
printf("x1=x2=%.5f\n",-b/(2*a)+0);
else
if(disc>1e-6)
{
realpart=-b/(2*a)+0;
imagpart=sqrt(disc)/(2*a);
x1=realpart+imagpart;
x2=realpart-imagpart;
if(fabs(x1)<=1e-6)
printf("x1=%.5f;x2=%.5f\n",fabs(x1),x2);
else
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
else
{
realpart=-b/(2*a)+0;
imagpart=sqrt(-disc)/(2*a);
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",realpart,imagpart,realpart,imagpart);
}
}
}
|
27
|
13,343 |
double dt(double a,double b,double c)
{
return(b*b-4*a*c);
}
double ba(double a,double b)
{
return(-b/(2*a));
}
double gdt(double a,double dtt)
{
return(sqrt(dtt)/(2*a));
}
double yu(double a,double b,double c)
{
return(sqrt(fabs(-dt(a,b,c)/(4*a))));
}
void main()
{
int n;
double a,b,c;
scanf("%d",&n);
int i;
double d;
for(i=0;i<n;i++)
{
scanf("%lf%lf%lf",&a,&b,&c);
if(ba(a,b)<1e-25&&ba(a,b)>-1e-25)
d=0.0;
else
d=ba(a,b);
if(dt(a,b,c)==0)
printf("x1=x2=%.5lf\n",d);
else if(dt(a,b,c)>0)
printf("x1=%.5lf;x2=%.5lf\n",d+gdt(a,dt(a,b,c)),d-gdt(a,dt(a,b,c)));
else if(dt(a,b,c)<0)
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",d,yu(a,b,c)/sqrt(a),d,yu(a,b,c)/sqrt(a));
}
}
|
27
|
13,344 |
void main()
{ int n;
double a,b,c,disc,x1,x2,realpart,imagpart;
scanf("%d",&n);
while(n--)
{scanf("%lf %lf %lf",&a,&b,&c);
disc=b*b-4*a*c;
if(disc==0.0)
{ printf("x1=x2=%.5lf\n",-b/(2.0*a));}
else {if(disc>0.0)
{x1=(-b+sqrt(disc))/(2.0*a);
x2=(-b-sqrt(disc))/(2.0*a);
printf("x1=%.5lf;",x1);
printf("x2=%.5lf\n",x2);}
else
{realpart=-b/(2.0*a);
imagpart=sqrt(-disc)/(2.0*a);
printf("x1=%.5lf+%.5lfi;",realpart,imagpart);
printf("x2=%.5lf-%.5lfi\n",realpart,imagpart);} }
}
}
|
27
|
13,345 |
main()
{
int n,i;
double a,b,c,root1,root2,shi,xu,t;
scanf("%d",&n);
for(i=1;i<=n;i++)
{
scanf("%lf %lf %lf",&a,&b,&c);
t=b*b-4*a*c;
if(t>0)
{
if(b==0)
printf("x1=0.00000+%.5f;x2=0.00000+%.5f\n",sqrt(t)/(2*a),-sqrt(t)/(2*a));
else
root1=(-b + sqrt(t))/(2*a);
root2=(-b - sqrt(t))/(2*a);
printf("x1=%.5f;x2=%.5f\n",root1,root2);
}
else
{
if(t<0)
{
shi=-b/(2*a);
xu=sqrt(-t)/(2*a);
if(shi==0)
printf("x1=0.00000+%.5fi;x2=0.00000-%.5fi\n",xu,xu);
else
{
if(xu>0)
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",shi,xu,shi,xu);
else
printf("x1=%.5f-%.5fi;x2=%.5f+%.5fi\n",shi,-xu,shi,-xu);
}
}
else
{
if(b==0)
printf("x1=x2=0");
else
root1=-b/(2*a);
printf("x1=x2=%.5f\n",root1);
}
}
}
return 0;
}
|
27
|
13,346 |
int main()
{
double a, b, c, x1, x2, n;
cin >> n ;
for (double k = 1 ; k <= n ; k++)
{
cin >> a >> b >> c ;
x1 = (-b + sqrt(b * b - 4 * a * c)) / (2 * a) ;
x2 = (-b - sqrt(b * b - 4 * a * c)) / (2 * a) ;
if (sqrt(b * b - 4 * a * c) > 0)
{
cout << "x1=" ;
printf ("%.5f",x1) ;
cout << ";" << "x2=" ;
printf ("%.5f",x2) ;
cout << endl ;
}
else
{
if (sqrt(b * b - 4 * a * c) == 0)
{
cout << "x1=x2=" ;
printf ("%.5f",x1) ;
cout << endl ;
}
else
{
cout << "x1=" ;
if (b == 0)
printf ("%.5f",(b / (2 * a))) ;
else
printf ("%.5f",(-b / (2 * a))) ;
cout << "+" ;
printf ("%.5f",(sqrt(abs(b * b - 4 * a * c)) / (2 * a)));
cout << "i" << ";" ;
cout << "x2=" ;
if (b == 0)
printf ("%.5f",(b / (2 * a))) ;
else
printf ("%.5f",(-b / (2 * a))) ;
cout << "-" ;
printf ("%.5f",(sqrt(abs(b * b - 4 * a * c)) / (2 * a)));
cout << "i" ;
cout << endl ;
}
}
}
return 0;
}
|
27
|
13,347 |
int main()
{
int n;
int i;
cin>>n;
double a,b,c;
for(i=1;i<=n;i++)
{
cin>>a>>b>>c;
if(b*b-4*a*c>=0)
{
double x1,x2;
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=%.5f\n", x1);
else printf("x1=%.5f;x2=%.5f\n" ,x1,x2);
}
else
{
double x11,x12,x21,x22;
x11=(-b)/(2*a);
x12=+sqrt(-b*b+4*a*c)/(2*a);
x21=(-b)/(2*a);
x22=-sqrt(-b*b+4*a*c)/(2*a);
if(b==0) printf("x1=0.00000+%.5fi;x2=0.00000%.5fi\n",x12,x22);
else printf("x1=%.5f+%.5fi;x2=%.5f%.5fi\n",x11,x12,x21,x22);
}
}
return 0;
}
|
27
|
13,348 |
int main()
{
float a[20],b[20],c[20];
double x1,x2,p,q,m;
int n,i;
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++)
{
double t;
t=b[i]*b[i]-4*a[i]*c[i];
if(t>0)
{
if(c[i]==0)
x1=0;
else
x1=(-b[i]+sqrt(t))/(2*a[i]);
x2=(-b[i]-sqrt(t))/(2*a[i]);
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
else
if(t==0)
{
if(b[i]==0)
m=0;
else
m=-(b[i]/(2*a[i]));
printf("x1=x2=%.5f\n",m);
}
else
{
if(b[i]==0)
{
p=-0.000000;
}
else
{
p=-b[i]/(2*a[i]);
}
q=sqrt(-t)/(2*a[i]);
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",p,q,p,q);
}
}
return 0;
}
|
27
|
13,349 |
int main()
{
int n,i;
double a[100],b[100],c[100],x1[100],x2[100],y1[100],y2[100],d[100];
cin>>n;
for(i=0;i<n;i++)
{
cin>>a[i] >>b[i] >>c[i];
d[i]=b[i]*b[i]-4*a[i]*c[i];
}
for(i=0;i<n;i++)
{
if(d[i]>0)
{
x1[i]=(-b[i]+sqrt(d[i]))/(2*a[i]);
x2[i]=(-b[i]-sqrt(d[i]))/(2*a[i]);
printf("x1=%.5f;x2=%.5f\n",x1[i],x2[i]);
}
else if(b[i]*b[i]-4*a[i]*c[i]<0)
{
x1[i]=(-b[i]/(2*a[i])),y1[i]=sqrt(-d[i])/(2*a[i]);
x2[i]=(-b[i]/(2*a[i])),y2[i]=-sqrt(-d[i])/(2*a[i]);
if(b[i]!=0)
{
if(a[i]>0)
printf("x1=%.5f+%.5fi;x2=%.5f%.5fi\n",x1[i],y1[i],x2[i],y2[i]);
else
printf("x1=%.5f%.5fi;x2=%.5f+%.5f\n",x1[i],y1[i],x2[i],y2[i]);
}
else
{
if(a[i]>0)
printf("x1=0.00000+%.5fi;x2=0.00000%.5fi\n",y1[i],y2[i]);
else if(a[i]<0)
printf("x1=0.00000%.5fi;x2=0.00000+%.5fi\n",y1[i],y2[i]);
}
}
else
{
x1[i]=-b[i]/(2*a[i]);
x2[i]=x1[i];
printf("x1=x2=%.5f\n",x1[i]);
}
}
return 0;
}
|
27
|
13,350 |
main()
{
int n,i;
scanf("%d",&n);
double a,b,c,p,x1,x2;
for(i=1;i<=n;i++)
{
scanf("%lf %lf %lf",&a,&b,&c);
p=b*b-4*a*c;
if(p>0)
{
x1=(-b+sqrt(p))/(2*a);
x2=(-b-sqrt(p))/(2*a);
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
else if(p==0)
{
x2=x1=(-b+sqrt(p))/(2*a);
printf("x1=x2=%.5f\n",x1);
}
else
{
x1=(-b)/(2*a);
x2=(sqrt(-p))/(2*a);
if(x1==-0)
x1=0;
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",x1,x2,x1,x2);
}
}
}
|
27
|
13,351 |
int main()
{
int n,i;
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++)
{
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 if(delta<0&&b[i]==0)
{
m=-0.00000;
printf("x1=%.5lf+%.5lfi;",m,n);
printf("x2=%.5lf-%.5lfi\n",m,n);
}
else
{
printf("x1=%.5lf+%.5lfi;",m,n);
printf("x2=%.5lf-%.5lfi\n",m,n);
}
}
}
return 0;
}
|
27
|
13,352 |
//???
//1100012822
//?????????
//2011?9?15?
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;
}
else
{
cout<<"x1="<<x1<<";"<<"x2="<<x2<<endl;
}
}
else
{
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
|
13,353 |
int main()
{
int n;
double A[15],B[15],C[15];
double x1,x2,m,y;
int i;
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++)
{ m=B[i]*B[i]-4*A[i]*C[i];
if(m<0)
{ y=sqrt(-m)/(2*A[i]);
if(B[i]==0)
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",(B[i])/(2*A[i]),y,(B[i])/(2*A[i]),y);
else
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",(-B[i])/(2*A[i]),y,(-B[i])/(2*A[i]),y);
}
else if(m==0)
{ x1=(-B[i])/(2*A[i]);
printf("x1=x2=%.5lf\n",x1);
}
else
{x1=(-B[i]+sqrt(m))/(2*A[i]);
x2=(-B[i]-sqrt(m))/(2*A[i]);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
}
return 0;
}
|
27
|
13,354 |
void main()
{
int n,j;
double x1,x2,x3,x4;
double a[10000],b[10000],c[10000];
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%lf%lf%lf",&a[j],&b[j],&c[j]);
}
for(j=0;j<n;j++)
{
if((b[j]*b[j]-4*a[j]*c[j])>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]);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
else if((b[j]*b[j]-4*a[j]*c[j])==0)
{
x1=-b[j]/(2*a[j]);
//x2=-b[j]/(2*a[j]);
printf("x1=x2=%.5lf\n",x1);
}
else
{
x3=-b[j]/(2*a[j]);
x4=sqrt(-b[j]*b[j]+4*a[j]*c[j])/(2*a[j]);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",x3,x4,x3,x4);
}
}
}
|
27
|
13,355 |
int main()
{
double a[len],b[len],c[len],x[len],y[len],x1,x2,d;
int n,i;
char m='i';
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((b[i]*b[i]-4*a[i]*c[i])>0){
x[i]=(-b[i]+sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]);
y[i]=(-b[i]-sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]);
printf("x1=%.5lf;x2=%.5lf\n",x[i],y[i]);
}
if((b[i]*b[i]-4*a[i]*c[i])==0){
printf("x1=x2=%.5lf\n",-b[i]/(2*a[i]));
}
if((b[i]*b[i]-4*a[i]*c[i])<0){
d=sqrt(4*a[i]*c[i]-b[i]*b[i])/(2*a[i]);
printf("x1=%.5lf+%.5lf%c;x2=%.5lf-%.5lfi\n",-b[i]/(2*a[i]),d,m,-b[i]/(2*a[i]),d,m);
}
}
return 0;
}
|
27
|
13,356 |
int main(int argc, char* argv[])
{
int n,i;
scanf("%d",&n);
for (i=1;i<=n;i++)
{
double a,b,c,x1,x2;
scanf("%lf%lf%lf",&a,&b,&c);
if (a!=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);
if (x1==x2)
{
printf("x1=x2=%.5f\n",x1);
}
else
{
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
}
else
{
double t;
t=sqrt(4*a*c-b*b)/(2*a);
x1=-b/(2*a);
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",x1,t,x1,t);
}
}
}
return 0;
}
|
27
|
13,357 |
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);
if(x1 == -0)
{
x1 = 0;
}
if(x2 == -0)
{
x2 = 0;
}
cout << fixed;
cout << "x1=" << setprecision(5) << x1 << ";" << "x2=" << setprecision(5) << x2 << endl;
}
if(b * b - 4 * a * c == 0)
{
x1 = (-b)/(2 * a);
if(x1 == -0)
{
x1 = 0;
}
cout << fixed;
cout << "x1=x2=" << setprecision(5) << x1 << endl;
}
if(b * b - 4 * a * c < 0)
{
x1 = (-b)/(2 * a);
x2 = sqrt(4 * a * c - b * b)/(2 * a);
if(x1 == -0)
{
x1 = 0;
}
if(x2 == -0)
{
x2 = 0;
}
cout << fixed;
cout << "x1=" << setprecision(5) << x1 << "+" << setprecision(5) << x2 << "i" << ";" << "x2=" << setprecision(5) << x1 << "-" << setprecision(5) << x2 << "i" <<endl;
}
}
return 0;
}
|
27
|
13,358 |
int main()
{
int n,i;
double x1,x2,a,b,c;
cout<<fixed<<setprecision(5);
cin>>n;
for(i=1;i<=n;i++)
{
cin>>a>>b>>c;
if(b*b==4*a*c)
{
x1=-b/(2*a);
cout<<"x1=x2="<<x1<<endl;
}
else
if (b*b>4*a*c)
{
x1=(-b+sqrt(b*b-4*a*c))/(2*a);
x2=(-b-sqrt(b*b-4*a*c))/(2*a);
cout<<"x1="<<x1<<";x2="<<x2<<endl;
}
else
{
if(b!=0)
{
cout<<"x1="<<-b/(2*a)<<"+"<<sqrt(4*a*c-b*b)/(2*a)<<"i"<<";x2="<<-b/(2*a)<<"-"<<sqrt(4*a*c-b*b)/(2*a)<<"i"<<endl;
}
else
{
cout<<"x1="<<b/(2*a)<<"+"<<sqrt(4*a*c-b*b)/(2*a)<<"i"<<";x2="<<b/(2*a)<<"-"<<sqrt(4*a*c-b*b)/(2*a)<<"i"<<endl;
}
}
}
return 0;
}
|
27
|
13,359 |
int main(int argc,char*argv[])
{
int n,i;
double a,b,c,x1,x2,d,e,m;
scanf("%d",&n);
for (i=0;i<n;i++)
{
scanf("%lf%lf%lf",&a,&b,&c);
d=b*b-4*a*c;
if(d>0)
{
x1=(-b + sqrt(b*b-4*a*c))/(2*a);
x2=(-b - sqrt(b*b-4*a*c))/(2*a);
printf("\nx1=%.5lf;x2=%.5lf",x1,x2);
}
else if(d==0)
{
x1=0-b/(2*a);
x2=x1;
printf("\nx1=x2=%.5lf",x1);
}
else
{
e=sqrt(-b*b+4*a*c)/(2*a);
m=0-b/(a*2);
printf("\nx1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi",m,e,m,e);
}
}
return 0;
}
|
27
|
13,360 |
int main(int argc, char *argv[])
{
double a[100][3],delta,x1,x2,real1,real2,imz1,imz2;
int n,i,j;
scanf("%d",&n);
for (i=0;i<=n-1;i++)
{
for (j=0;j<=2;j++)
{
scanf("%lf",&a[i][j]);
}
delta=a[i][1]*a[i][1]-4*a[i][0]*a[i][2];
if (delta>0)
{x1=((-1)*a[i][1]+sqrt(delta))/(2*a[i][0]);
x2=((-1)*a[i][1]-sqrt(delta))/(2*a[i][0]);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);}
else if (fabs(delta)<1e-5)
{x1=((-1)*a[i][1])/(2*a[i][0]);
printf("x1=x2=%.5lf\n",x1);}
else
{real1=(-1)*a[i][1]/(2*a[i][0]);
imz1=sqrt((-1)*delta)/(2*a[i][0]);
real2=(-1)*a[i][1]/(2*a[i][0]);
imz2=sqrt((-1)*delta)/(2*a[i][0]);
if (fabs(real1)<1e-5)
real1=fabs(real1);
if (fabs(real2)<1e-5)
real2=fabs(real2);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",real1,imz1,real2,imz2);}
}
return 0;
}
|
27
|
13,361 |
void main()
{
float a,b,c;
double x1,x2,t,p,q;
int i,n;
scanf("%d",&n);
for(i=1;i<=n;i++)
{
scanf("%f %f %f",&a,&b,&c);
t=b*b-4*a*c;
p=-b/(2*a);
if (t<0)
{
q=sqrt(-t)/(2*a);
printf("x1=%.5lf+%.5lfi;",p,q);
printf("x2=%.5lf-%.5lfi\n",p,q);
}
else
{
q=sqrt(t)/(2*a);
x1=p+q;
x2=p-q;
if (x1==x2) printf("x1=x2=%.5lf\n",x1);
else printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
};
};
}
|
27
|
13,362 |
int main ()
{
int n,m;
scanf ("%d",&n);
double a[100],b[100],c[100],x1[100],x2[100],p[100],r[100],s[100];
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
|
13,363 |
main()
{
float x[100][3],a,b,c,d;
int i,n;
double x1,x2;
scanf("%d",&n);
for(i=1;i<=n;i++)
{
scanf("%f%f%f",&x[i][1],&x[i][2],&x[i][3]);
}
for(i=1;i<=n;i++)
{
a=x[i][1];
b=x[i][2];
c=x[i][3];
d=b*b-4*a*c;
if(d>0 && c==0)
printf("x1=%.5f;x2=%.5f\n",c,(-b-sqrt(d))/(2*a));
if(d>0 && c!=0)
printf("x1=%.5f;x2=%.5f\n",(-b+sqrt(d))/(2*a),(-b-sqrt(d))/(2*a));
if(d==0)
printf("x1=x2=%.5f\n",(-b+sqrt(d))/(2*a));
if(d<0 && b==0)
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",b,sqrt(-d)/(2*a),b,sqrt(-d)/(2*a));
if(d<0 && b!=0)
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",-b/(a*2),sqrt(-d)/(2*a),-b/(2*a),sqrt(-d)/(2*a));
}
}
|
27
|
13,364 |
main()
{
int n,i;
float a[100],b[100],c[100];
double d=0,x1,x2;
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++)
{
d=b[i]*b[i]-4.0*a[i]*c[i];
if(d>=0.001)
{
x1 = (-b[i]+sqrt(d))/(2.0*a[i]);
x2 = (-b[i]-sqrt(d))/(2.0*a[i]);
printf("x1=%.5f;",x1);
printf("x2=%.5f\n",x2);
}
if(d<0.001&&d>-0.001)
{
x1= (-b[i])/(2.0*a[i]);
printf("x1=x2=%.5f\n",x1);
}
if(d<=-0.001)
{
double m,n;
m=-b[i]/(2.0*a[i]);
n=sqrt(-d)/(2.0*a[i]);
if (m==0) printf("x1=0.00000+%.5fi;x2=0.00000-%.5fi\n",n,n);
else printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",m,n,m,n);
}
}
getchar(); getchar();getchar();getchar();
}
|
27
|
13,365 |
int main()
{
int n;
double a[100];
double b[100];
double c[100];
double d,x1[100],x2[100],e,f;
int j;
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%lf%lf%lf",&a[j],&b[j],&c[j]);
}
for (j=0;j<n;j++)
{
d=b[j]*b[j]-4*a[j]*c[j];
if(d>0)
{
x1[j]=(-b[j]+sqrt(d))/(2*a[j]);
x2[j]=(-b[j]-sqrt(d))/(2*a[j]);
printf("x1=%.5lf;x2=%.5lf\n",x1[j],x2[j]);
}
else if (d==0)
{
x1[j]=x2[j]=-b[j]/(2*a[j]);
printf("x1=x2=%.5lf\n",x1[j]);
}
else
{
e=-b[j]/(2*a[j]);
f=sqrt(-d)/(2*a[j]);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",e,f,e,f);
}
}
return 0;
}
|
27
|
13,366 |
//*******************************
//**6.cpp?????????***
//**??????1300012993****
//**??:2013.10.10****
//*******************************
int main()
{
int n;
double a, b, c, x1, x2, d, p, q;
char i;
cin >> n;
for(i = 1; i <= n; i++)
{
cin >> a >> b >> c;
d = b * b - 4 * a * c; //???????
if(d > 0) //d??0,???????
{if(b != 0) //b??0??????????-0
{
b = -b;
}
x1 = (b + sqrt(d)) / (2 * a); //?????
x2 = (b - sqrt(d)) / (2 * a);
cout << fixed;
cout << "x1=" << setprecision(5) << x1 << ";"; //???????????
cout << "x2=" << setprecision(5) << x2 << endl;}
else
if(d < 0) //?????
{ if(b != 0) //????-0
{
b = -b;
}
p = b / (2 * a); //????
q = sqrt(-d) / (2 * a); //?????????
cout << fixed;
cout << "x1=" << setprecision(5) << p; //??????
cout << "+" << setprecision(5) << q;
cout << 'i' << ";" << "x2=" << setprecision(5) << p;
cout << "-" << setprecision(5) << q << 'i' << endl;
}
else //????????d??0??????
{if(b != 0)
{
b = -b; //????-0
}
x1 = b / (2 * a); //????????
x2 = b / (2 * a);
cout << "x1=x2=";
cout << fixed;
cout << setprecision(5) << x1 << endl;} //????
}
return 0;
}
|
27
|
13,367 |
/*
* 1.cpp
* Created on: 2012-9-28
* Author: ???
* ??:?????????
*/
int main(){
int n;//???????
cin>>n;//?????
while(n--){//??n?????
double a,b,c,d,e,delt=0.0,x1,x2;//????a,b,c,d,e,delt,x1,x2
cin>>a>>b>>c;//???????a,b,c
delt=b*b-4*a*c;//?delt??b*b-4*a*c
if(delt==0){//??delt ??0
x1=x2=(-b)/(2*a);//?x1?x2?????
printf("x1=x2=%.5f\n",x1);//??x1,x2
}
else if(delt<0){//???delt??0??x1,x2???
d=(-b)/(2*a),e=sqrt(4*a*c-b*b)/(2*a);
if (d<=0&&d>-0.000001) d=0.0000001;//??d????d??0.0000001
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",d,e,d,e);//??x1,x2
}
else {//??x1,x2?????
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);//??x1,x2
}
}
}
|
27
|
13,368 |
int main()
{
int n,i;
double a,b,c,t,x1,x2;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%lf%lf%lf",&a,&b,&c);
t=b*b-4*a*c;
if(t>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(t==0.0)
{
x1=(-b+sqrt(b*b-4*a*c))/(2*a);
printf("x1=x2=%.5lf\n",x1);
}
else
{
if(b==0.0)
{
x1=(b/(2*a));
x2=sqrt((4*a*c-b*b)/(4*a*a));
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",x1,x2,x1,x2);
}
else
{
x1=(-b/(2*a));
x2=sqrt((4*a*c-b*b)/(4*a*a));
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",x1,x2,x1,x2);
}
}
}
}
return 0;
}
|
27
|
13,369 |
int main()
{
int n;
double a,b,c,x1,x2,e,f,g;
scanf("%d\n",&n);
while(n--)
{
scanf("%lf %lf %lf\n",&a,&b,&c);
e=b*b-4*a*c;
if(e>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(e==0)
{
x1=(-b)/(2*a);
printf("x1=x2=%.5lf\n",x1);
}
if(e<0)
{
f=(-b)/(2*a);
g=sqrt(-(b*b-4*a*c))/(2*a);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",f,g,f,g);
}
}
return 0;
}
|
27
|
13,370 |
int main()
{
int n,i;
scanf("%d",&n);
float a[100],b[100],c[100];
double x1,x2,m,p,q;
for(i=0;i<n;i++){
scanf("%f%f%f",&a[i],&b[i],&c[i]);
}
for(i=0;i<n;i++){
m = b[i]*b[i]-4*a[i]*c[i];
if (m > 0){
x1=(-b[i]+sqrt(m))/(2*a[i]);
x2=(-b[i]-sqrt(m))/(2*a[i]);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
else if (m == 0){
x1=-b[i]/(2*a[i]);
printf("x1=x2=%.5lf\n",x1);
}
else if (m < 0){
p=-b[i]/(2*a[i]);
q=sqrt(-m)/(2*a[i]);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",p,q,p,q);
}
}
return 0;
}
|
27
|
13,371 |
int main()
{
const int max=100;
double a[max],b[max],c[max],x1,x2,delta;
int n,i;
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++)
{
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);
}
else if (delta==0) printf("x1=x2=%.5f\n",-b[i]/(2*a[i]));
else
{
x1=-b[i]/(2*a[i]);
x2=sqrt(-delta)/(2*a[i]);
if (x2<0) x2=-x2;
if (x1==0) x1=0;
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",x1,x2,x1,x2);
}
}
return 0;
}
|
27
|
13,372 |
int main()
{
int n,i;
double u[100],s[100],delta[100],x1[100],x2[100],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++)
{
delta[i]=pow(b[i],2)-4*a[i]*c[i];
if(delta[i]>0)
{
x1[i]=((0-b[i])+sqrt(delta[i]))/(2*a[i]);
x2[i]=((0-b[i])-sqrt(delta[i]))/(2*a[i]);
printf("x1=%.5lf;x2=%.5lf\n",x1[i],x2[i]);
}
else if(delta[i]==0)
{
x1[i]=(0-b[i])/(2*a[i]);
printf("x1=x2=%.5lf\n",x1[i]);
}
else if(delta[i]<0)
{
u[i]=(0-b[i])/(2*a[i]);
s[i]=sqrt(0-delta[i])/(2*a[i]);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",u[i],s[i],u[i],s[i]);
}
}
return 0;
}
|
27
|
13,373 |
int main()
{
int n,i;
double j,k,p;
double a[100];
double b[100];
double c[100];
double x1[100],x2[100],d[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++)
{
p=-b[i]/(2*a[i]);
if(p==-0.00000)
{
p=0.00000;
}
d[i]=b[i]*b[i]-4*a[i]*c[i];
if(d[i]==0)
{
x1[i]=x2[i]=-b[i]/(2*a[i]);
printf("x1=x2=%.5lf\n",x1[i]);
}
if(d[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(d[i]<0)
{
j=p;
k=sqrt(4*a[i]*c[i]-b[i]*b[i])/(2*a[i]);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",j,k,j,k);
}
}
}
|
27
|
13,374 |
int main()
{
int n,i;
double a,b,c,deta,sq;
double x1,x2;
scanf("%d",&n);
i=0;
while (i<n)
{
scanf("%lf%lf%lf",&a,&b,&c);
deta=b*b-4*a*c;
if (deta==0)
{
x1=x2=-b/(2*a);
printf("x1=x2=%.5f\n",x1);
}
else if(deta>0)
{
x1=(-b+sqrt(deta))/(2*a);
x2=(-b-sqrt(deta))/(2*a);
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
else
{
sq=sqrt(0-deta)/(2*a);
x1=-b/(2*a);
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",x1,sq,x1,sq);
}
i++;
}
return 0;
}
|
27
|
13,375 |
int main()
{
int k,i;
double x[100],y[100],a[100],b[100],c[100],p[100],n[100];
cin>>k;
for(i=1;i<=k;i++)
{
cin>>a[i]>>b[i]>>c[i];
p[i]=b[i]*b[i]-4*a[i]*c[i];
if(p[i]>0)
{
x[i]=((-b[i])+sqrt(p[i]))/2/a[i];
y[i]=((-b[i])-sqrt(p[i]))/2/a[i];
}
else if(p[i]==0)
x[i]=(-b[i])/2/a[i];
else
{
x[i]=(-b[i])/2/a[i];
y[i]=(-b[i])/2/a[i];
n[i]=sqrt(0-p[i])/2/a[i];
}
}
for(i=1;i<=k;i++)
{
cout<<fixed<<setprecision(5);
if(p[i]>0)
{
cout<<"x1="<<x[i]<<";x2="<<y[i]<<endl;
}
else if(p[i]==0)
cout<<"x1=x2="<<x[i]<<endl;
else
{
if(x[i]==-0)
cout<<"x1="<<-x[i]<<"+"<<n[i]<<"i"<<";x2="<<-y[i]<<"-"<<n[i]<<"i"<<endl;
else
cout<<"x1="<<x[i]<<"+"<<n[i]<<"i"<<";x2="<<y[i]<<"-"<<n[i]<<"i"<<endl;
}
}
return 0;
}
|
27
|
13,376 |
int main()
{
double a,b,c,x1,x2,x3,decision;
int n,i,j;
scanf("%d",&n);
for(i=1;i<=n;i++)
{ scanf("%lf%lf%lf",&a,&b,&c);
decision=b*b-4*a*c;
if (decision==0)
printf("x1=x2=%.5lf\n",(-1)*b/(2*a));
if (decision>0)
{
x1 = ((-1)*b + sqrt(b*b-4*a*c))/(2*a);
x2 = ((-1)*b - sqrt(b*b-4*a*c))/(2*a);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
if (decision<0)
{x1=(-1)*b/(2*a);
x3=sqrt((-1)*decision)/(2*a);
if ((x1<0.001) &&((-1)*x1<0.001))
printf("x1=0.00000+%.5lfi;x2=0.00000-%.5lfi\n",x3,x3);
else
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",x1,x3,x1,x3);
}
}
}
|
27
|
13,377 |
int main()
{
double a,b,c,w,x1,x2;
int n,i;
scanf("%d",&n);
for (i=0;i<n;i++)
{
scanf("%lf%lf%lf",&a,&b,&c);
w=b*b-4*a*c;
if (w>0)
{
w=sqrt(w);
x1=(0-b+w)/(2*a);
x2=(0-b-w)/(2*a);
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
else if(w<0)
{
w=sqrt(0-w)/(2*a);
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",(-b)/(2*a),w,(-b)/(2*a),w);
}
else if(w==0)
{
x1=x2=(0-b)/(2*a);
printf("x1=x2=%.5f\n",x1);
}
}
return 0;
}
|
27
|
13,378 |
int main(int argc, char* argv[])
{
int n,j;
double a[100],b[100],c[100];
double x1,x2,xi,x0;
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%lf%lf%lf",&a[j],&b[j],&c[j]);
}
for(j=0;j<n;j++)
{
if((b[j]*b[j]-4*a[j]*c[j])>=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]);
if(x1!=x2)printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
else printf("x1=x2=%.5lf\n",x1);
}
if((b[j]*b[j]-4*a[j]*c[j])<0){
xi=sqrt(-b[j]*b[j]+4*a[j]*c[j])/(2*a[j]);
x0=b[j]/(2*a[j]);
if (x0!=0)x0=-x0;
printf("x1=%.5lf+%.5lfi;",x0,xi);
printf("x2=%.5lf-%.5lfi\n",x0,xi);
}
}
return 0;
}
|
27
|
13,379 |
main()
{int n,m;
double p,q,t,x1,x2;
float b[1005],a[1005];
scanf("%d",&n);
for (m=0;m<3*n;m=m+3)
{
scanf("%f %f %f",&b[m],&b[m+1],&b[m+2]);
a[m]=b[m];
a[m+1]=b[m+1];
a[m+2]=b[m+2];
}
for(m=0;m<=3*n-1;m=m+3)
{
t=a[m+1]*a[m+1]-4*a[m]*a[m+2];
if (t>=0)
if(t==0)
{
p=-1*a[m+1]/(2*a[m]);
if(p==-0.0) p=0.0;
printf("x1=x2=%.5lf\n",p);
}
else {p=-1*a[m+1]/(2*a[m]);
q=sqrt(t)/(2*a[m]);
x1=p+q;
x2=p-q;
if(x1==-0.0) x1=0.0;
if(x2==-0.0) x2=0.0;
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
else
{
p=-1*a[m+1]/(2*a[m]);
q=sqrt(-t)/(2*a[m]);
if(p==-0.0) p=0.0;
if(q==-0.0) q=0.0;
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",p,q,p,q);
}
}
}
|
27
|
13,380 |
int main()
{
int n;
float a,b,c;
cin>>n;
for(n;n>0;n--)
{
cin>>a>>b>>c;
double m=-b/(2*a);
double deta=b*b-4*a*c;
if (m==-0)
m=0;
if(deta>1e-8)
cout<<"x1="<<fixed<<setprecision(5)<<m+sqrt(deta)/(2*a)
<<";x2="<<m-sqrt(deta)/(2*a)<<endl;
else if(deta<=-1e-8)
cout<<"x1="<<fixed<<setprecision(5)<<m<<"+"<<fabs(sqrt(-deta)/(2*a))<<"i"
<<";x2="<<m<<"-"<<fabs(sqrt(-deta)/(2*a))<<"i"<<endl;
else
cout<<fixed<<setprecision(5)<<"x1=x2="<<m<<endl;
}
return 0;
}
|
27
|
13,381 |
int main(int argc, char* argv[])
{
double a,b,c;
int n;
double x1,x2,m,p,q;
int i=0;
scanf ("%d",&n);
for (i=0;i<n;i++)
{ scanf ("%lf%lf%lf",&a,&b,&c);
m=b*b-4*a*c;
if (m==0)
{
p=(-b)/(2*a);
printf ("x1=x2=%.5lf\n",p);
}
if (m>0)
{
p=(-b + sqrt(b*b-4*a*c))/(2*a);
q=(-b - sqrt(b*b-4*a*c))/(2*a);
printf ("x1=%.5lf;x2=%.5lf\n",p,q);
}
if (m<0)
{
p=(-b)/(2*a) ;
q= (sqrt(-b*b+4*a*c)/(2*a));
printf ("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",p,q,p,q);
}}
return 0;
}
|
27
|
13,382 |
int main(){
int n,i;
double a[100],b[100],c[100],disc[100],x1[100],x2[100],realpart[100],imagpart[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++){
disc[i]=b[i]*b[i]-4*a[i]*c[i];
if(fabs(disc[i])<=1e-6)
printf("x1=x2=%.5lf\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=%.5lf;x2=%.5lf\n",x1[i],x2[i]);
}
else {
realpart[i]=-b[i]/(2*a[i]);
imagpart[i]=sqrt(-disc[i])/(2*a[i]);
if(realpart[i]==0)
realpart[i]=0;
printf("x1=%.5lf+%.5lfi;",realpart[i],imagpart[i]);
printf("x2=%.5lf-%.5lfi\n",realpart[i],imagpart[i]);
}
}
return 0;
}
|
27
|
13,383 |
int main(int argc, char* argv[])
{
int n,j;
scanf("%d",&n);
double a,b,c;
for(j=0;j<n;j++){
scanf("%lf %lf %lf",&a,&b,&c);
if((b*b-4*a*c)>0){
double x1,x2;
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){
if(b!=0){
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\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=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",0.00000,sqrt(4*a*c-b*b)/(2*a),0.00000,sqrt(4*a*c-b*b)/(2*a));
}
}
if((b*b-4*a*c)==0){
double x1,x2;
x1=x2=-b/(2*a);
printf("x1=x2=%.5lf\n",x1);
}
}
return 0;
}
|
27
|
13,384 |
void main ()
{
int n, i;
double a, b, c, d, e;
scanf("%d", &n);
for(i=1;i<=n;i++)
{
scanf("%lf %lf %lf", &a, &b, &c);
if((b*b-4*a*c)<0)
{d=(-(b/(2*a)));
e=(sqrt(-b*b+4*a*c))/(2*a);
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n", d, e, d, e);}
else if((b*b-4*a*c)>=0)
{d=(-b+sqrt(b*b-4*a*c))/(2*a);
e=(-b-sqrt(b*b-4*a*c))/(2*a);
if(d==e)
printf("x1=x2=%.5f\n", d);
else if(!(d==e))
printf("x1=%.5f;x2=%.5f\n", d, e);}
}
}
|
27
|
13,385 |
int main()
{
int n,i;
float a,b,c,d,t;
scanf("%d",&n);
for(i=1;i<=n;i++)
{
scanf("%f%f%f",&a,&b,&c);
d=b*b-4*a*c;
if(d>0)
{
printf("x1=%.5f;x2=%.5f\n",(-b+sqrt(d))/(2*a)+1e-6,(-b-sqrt(d))/(2*a)+1e-6);
}
else if(d<1e-6&&d>-1e-6)
{
printf("x1=x2=%.5f\n",(-b)/(2*a));
}
else
{
t=-b/(2*a)+1e-8;
printf("x1=%.5f%+.5fi;x2=%.5f%+.5fi\n",t,sqrt(-d)/(2*a),t,-sqrt(-d)/(2*a));
}
}
//getch();
return 0;
}
|
27
|
13,386 |
int main(){
int n;
float a,b,c;
double x1,x2,m;
scanf("%d\n",&n);
for(int i=0;i<n;i++)
{
scanf("%f%f%f",&a,&b,&c);
if(b*b-4*a*c>0)
{
x1=(-b+sqrt(b*b-4*a*c))/(2*a);
x2=(-sqrt(b*b-4*a*c)-b)/(2*a);
printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
else if(b*b-4*a*c==0)
{
if(b==0){x1=x2=0.00000;}
else {x1=x2=(-b)/(2*a);}
printf("x1=x2=%.5f\n",x1);
}
else if(b*b-4*a*c<0)
{
if(b==0) {x1=x2=b/(2*a);m=sqrt(-b*b+4*a*c)/(2*a);}
else {x1=x2=(-b)/(2*a);m=sqrt(-b*b+4*a*c)/(2*a);}
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",x1,m,x2,m);
}
}
return 0;
}
|
27
|
13,387 |
int main()
{
double a,b,c,p,p1,x1,x2,y1,z;
int n,i;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%lf%lf%lf",&a,&b,&c);
p=b*b-4*a*c;
if(p>0)
{
x1=(-b+sqrt(p))/(2*a);
x2=(-b-sqrt(p))/(2*a);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
else if(p==0)
{
x1=(-b)/(2*a);
x2=(-b)/(2*a);
printf("x1=x2=%.5lf\n",x1);
}
else
{
p1=-p;
y1=-b/(2*a);
z=sqrt(p1)/(2*a);
printf("x1=%.5lf+%.5lfi;",y1,z);
printf("x2=%.5lf-%.5lfi\n",y1,z);
}
}
return 0;
}
|
27
|
13,388 |
int main (int argc, char *argv[])
{
int n,j;
float a[100],b[100],c[100];
double x1,x2;
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%f%f%f\n",&a[j],&b[j],&c[j]);
if(0<=(b[j]*b[j]-4*a[j]*c[j]))
{
x1=(double)(-b[j]+sqrt(b[j]*b[j]-4*a[j]*c[j]))/(2*a[j]);
x2=(double)(-b[j]-sqrt(b[j]*b[j]-4*a[j]*c[j]))/(2*a[j]);
if(x1==x2)
{
printf("x1=x2=%.5lf\n",x1);
}
else
{
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
}
else
{
double m,l;
m=(double)-b[j]/(2*a[j]);
l=(double)sqrt(4*a[j]*c[j]-b[j]*b[j])/(2*a[j]);
printf("x1=%.5lf+%.5fi;x2=%.5lf-%.5fi\n",m,l,m,l);
}
}
return 0;
}
|
27
|
13,389 |
int main(int argc, char* argv[])
{
int n,i;
scanf("%d",&n);
double a,b,c;
double x1,x2,shb;
for(i=0;i<n;i++){
scanf("%lf%lf%lf",&a,&b,&c);
if(b*b-4*a*c<0){
if(b==0){shb=0.00000;}
else {shb=(-b)/(2*a);}
x1=sqrt(4*a*c-b*b)/(2*a);
x2=-sqrt(4*a*c-b*b)/(2*a);
printf("x1=%.5f+%.5fi;x2=%.5f%.5fi\n",shb,x1,shb,x2);
}
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=x2=%.5f\n",x1);
else printf("x1=%.5f;x2=%.5f\n",x1,x2);
}
}
return 0;
}
|
27
|
13,390 |
main()
{
int i,n;
double a[100],b[100],c[100],d[100],x[100],y[100];
scanf("%d",&n);
i=0;
for(i=0;i<n;i++)
{
scanf("%lf %lf %lf",&a[i],&b[i],&c[i]);
}
i=0;
while(i<n)
{
if(b[i]*b[i]-4*a[i]*c[i]>=0)
{
x[i]=(-b[i]+sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]);
y[i]=(-b[i]-sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]);
if(x[i]==y[i])
printf("x1=x2=%.5lf\n",x[i]);
else printf("x1=%.5lf;x2=%.5lf\n",x[i],y[i]);
}
else
{
if(b[i]==0)
{
d[i]=sqrt(-b[i]*b[i]+4*a[i]*c[i])/(2*a[i]);
x[i]=b[i]/(2*a[i]);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",x[i],d[i],x[i],d[i]);
}
else
{
d[i]=sqrt(-b[i]*b[i]+4*a[i]*c[i])/(2*a[i]);
x[i]=-b[i]/(2*a[i]);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",x[i],d[i],x[i],d[i]);
}
}
i=i+1;
}
}
|
27
|
13,391 |
int main()
{
int n,i;
float a,b,c;
double x1,x2,m;
cin>>n;
for(i=1;i<=n;i++)
{
cin>>a>>b>>c;
m=-b/(2*a);
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<<setprecision(5)<<"x1="<<x1<<";"<<"x2="<<x2<<endl;
}
else if(b*b-4*a*c<0)
{
if (m!=0)
{
cout<<fixed<<setprecision(5)<<"x1="
<<-b/(2*a)<<"+"<<sqrt(-b*b+4*a*c)/(2*a)<<"i;";
cout<<fixed<<setprecision(5)<<"x2="
<<-b/(2*a)<<"-"<<sqrt(-b*b+4*a*c)/(2*a)<<"i"<<endl;
}
else
{
cout<<fixed<<setprecision(5)<<"x1="
<<"0.00000+"<<sqrt(-b*b+4*a*c)/(2*a)<<"i;";
cout<<fixed<<setprecision(5)<<"x2="
<<"0.00000-"<<sqrt(-b*b+4*a*c)/(2*a)<<"i"<<endl;
}
}
else
{
x1 = x2 = -b/(2*a);
cout<<fixed<<setprecision(5)<<"x1=x2="<<x1<<endl;
}
}
return 0;
}
|
27
|
13,392 |
int main()
{
int n,i;
double a,b,c;
double x1[100],x2[100],s1[100],s2[100];
scanf("%d",&n);
for(i=1;i<=n;i++)
{
scanf("%lf%lf%lf",&a,&b,&c);
if( (b*b-4*a*c)==0 )
{
x1[i]=x2[i]=(-b)/(2*a);
s2[i]=0.0;
}
else if( (b*b-4*a*c)>0 )
{
x1[i]=(-b+sqrt(b*b-4*a*c))/(2*a);
x2[i]=(-b-sqrt(b*b-4*a*c))/(2*a);
s2[i]=0.0;
}
else if( (b*b-4*a*c)<0 )
{
s1[i]=(-b)/(2*a);
if(s1[i]==-0.0)
s1[i]=0.0;
s2[i]=sqrt(4*a*c-b*b)/(2*a);
}
}
for(i=1;i<=n;i++)
{
if(x1[i]==x2[i]&&s2[i]==0)
printf("x1=x2=%.5f\n",x1[i]);
else if(x1[i]!=x2[i]&&s2[i]==0)
printf("x1=%.5f;x2=%.5f\n",x1[i],x2[i]);
else
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",s1[i],s2[i],s1[i],s2[i]);
}
return 0;
}
|
27
|
13,393 |
int main()
{
char x1,x2;
int n;
float a,b,c;
scanf("%d",&n);
int i;
for(i=1;i<=n;i++)
{
scanf("%f%f%f",&a,&b,&c);
float e;
e=b*b-4*a*c;
if(e>0)
printf("x1=%.5f;x2=%.5f\n",(-b+sqrt(b*b-4*a*c))/(2*a),(-b-sqrt(b*b-4*a*c))/(2*a));
else
if(e==0.0)
printf("x1=x2=%.5f\n",(-b)/(2*a));
else
if(b==0)
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",(b)/(2*a),sqrt(-e)/(2*a),(b)/(2*a),(sqrt(-e))/(2*a));
else
printf("x1=%.5f+%.5fi;x2=%.5f-%.5fi\n",(-b)/(2*a),sqrt(-e)/(2*a),(-b)/(2*a),(sqrt(-e))/(2*a));
}
return 0;
}
|
27
|
13,394 |
//***************************************************
//*????????????.cpp **
//*????? 1100012808 **
//*???2011.09.25 **
//*???????????????????? **
//***************************************************
int main()
{
int n,i;
float a,b,c;
double x1,x2;
cin >> n;
for (i=1;i<=n;i=i+1)
{
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 << fixed << "x1=" << setprecision(5) << x1 << ";" << "x2=" << setprecision(5) << x2 << endl;
}
else if ((b*b-4*a*c)==0)
{
x1=(-b+sqrt(b*b-4*a*c))/(2*a);
cout << fixed << setprecision(5) << "x1=x2=" << x1 << endl;
}
else
{
cout << "x1=" << fixed << setprecision(5) << -b/(2*a)+1-1 << setprecision(5) << "+" <<sqrt(4*a*c-b*b)/(2*a) << 'i' << ";";
cout << "x2=" << fixed << setprecision(5) << -b/(2*a)+1-1 << setprecision(5) << -sqrt(4*a*c-b*b)/(2*a) << 'i' << endl;
}
}
return 0;
}
|
27
|
13,395 |
int main()
{
double a[10000],b[10000],c[10000],d[10000][2];
int i,j,n;
cin>>n;
for(i=1;i<=n;i++)
{
cin>>a[i]>>b[i]>>c[i];
if(a[i]<0)
{
a[i]=-a[i],b[i]=-b[i],c[i]=-c[i];
if(b[i]*b[i]-4*a[i]*c[i]>=0)
{
d[i][0]=(-b[i])/(2*a[i]);
d[i][1]=(sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]);
}
if(b[i]*b[i]-4*a[i]*c[i]<0)
{
d[i][0]=(-b[i])/(2*a[i]);
d[i][1]=(sqrt(-b[i]*b[i]+4*a[i]*c[i]))/(2*a[i]);
}
}
if(a[i]>0)
{
if(b[i]*b[i]-4*a[i]*c[i]>=0)
{
d[i][0]=(-b[i])/(2*a[i]);
d[i][1]=(sqrt(b[i]*b[i]-4*a[i]*c[i]))/(2*a[i]);
}
if(b[i]*b[i]-4*a[i]*c[i]<0)
{
d[i][0]=(-b[i])/(2*a[i]);
d[i][1]=(sqrt(-b[i]*b[i]+4*a[i]*c[i]))/(2*a[i]);
}
}
}
for(j=1;j<=n;j++)
{
if(b[j]*b[j]-4*a[j]*c[j]>0)
cout<<fixed<<setprecision(5)<<"x1="<<d[j][0]+d[j][1]<<";x2="<<d[j][0]-d[j][1]<<endl;
if(b[j]*b[j]-4*a[j]*c[j]==0)
cout<<fixed<<setprecision(5)<<"x1=x2="<<d[j][0]<<endl;
if(b[j]*b[j]-4*a[j]*c[j]<0)
cout<<fixed<<setprecision(5)<<"x1="<<d[j][0]<<"+"<<d[j][1]<<"i;x2="<<d[j][0]<<"-"<<d[j][1]<<"i"<<endl;
}
return 0;
}
|
27
|
13,396 |
int main()
{
int n,m,k;
double d,e,f;
scanf("%d\n",&n);
double a[n],b[n],c[n];
for(m=0;m<n;m++)
{
scanf("%lf %lf %lf\n",&a[m],&b[m],&c[m]);
}
for(k=0;k<n;k++)
{ d=b[k]*b[k]-4*a[k]*c[k];
if(d>0)
{
e=(-b[k]+sqrt(d))/(2*a[k]);
f=(-b[k]-sqrt(d))/(2*a[k]);
printf("x1=%.5lf;x2=%.5lf\n",e,f);
}
else if(d==0)
{
e=(-b[k])/(2*a[k]);
printf("x1=x2=%.5lf\n",e);
}
else if(d<0)
{
e=(-b[k])/(2*a[k]);
f=sqrt(-d)/(2*a[k]);
if(b[k]==0)
{printf("x1=0.00000+%.5lfi;x2=0.00000-%.5lfi\n",f,f);}
else
{printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",e,f,e,f);}
}
}
return 0;
}
|
27
|
13,397 |
int main()
{
int n,i;
double a[30],b[30],c[30],x1,x2,m,q,p;
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((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]);
printf("x1=%.5lf;",x1);
printf("x2=%.5lf\n",x2);
}
else if((b[i]*b[i]-4*a[i]*c[i])==0)
{
x1=x2=(-b[i])/(2*a[i]);
printf("x1=x2=%.5lf\n",x1);
}
else
{
m=sqrt(-b[i]*b[i]+4*a[i]*c[i])/(2*a[i]);
q=-(sqrt(-b[i]*b[i]+4*a[i]*c[i])/(2*a[i]));
p=(-b[i])/(2*a[i]);
if(a>0)
{
printf("x1=%.5lf+%.5lfi;",p,m);
printf("x2=%.5lf%.5lfi\n",p,q);
}
else
{
printf("x1=%.5lf%.5lfi;",p,m);
printf("x2=%.5lf+%.5lfi\n",p,q);
}
}
}
return 0;
}
|
27
|
13,398 |
main()
{
int n,i;
scanf("%d",&n);
for(i=1;i<=n;i++)
{
double a,b,c,D,Re,Im,x1,x2;
scanf("%lf%lf%lf",&a,&b,&c);
D=b*b-4*a*c;
if(D>0)
{
x1=(0-b+sqrt(D))/(2*a);
x2=(0-b-sqrt(D))/(2*a);
printf("x1=%.5lf;x2=%.5lf\n",x1,x2);
}
else if(D==0)
{
x1=(0-b)/(2*a);
printf("x1=x2=%.5lf\n",x1);
}
else
{
Re=(0-b)/(2*a);
Im=sqrt(-D)/(2*a);
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",Re,Im,Re,Im);
}
}
}
|
27
|
13,399 |
int main()
{
double m[2][99],x[99],a,b,c;
int i,n;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%lf %lf %lf",&a,&b,&c);
x[i]=b*b-4*a*c;
if(x[i]>0)
{
m[0][i]=(-b+sqrt(x[i]))/(2*a);
m[1][i]=(-b-sqrt(x[i]))/(2*a);
}
else
{
if(x[i]==0)
{
m[0][i]=(-b)/(2*a);
}
else
{
m[0][i]=(-b)/(2*a);
m[1][i]=sqrt(-x[i])/(2*a);
}
}
}
for(i=0;i<n;i++)
{
if(x[i]>0)
{
printf("x1=%.5lf;x2=%.5lf\n",m[0][i],m[1][i]);
}
else
{
if(x[i]==0)
{
printf("x1=x2=%.5lf\n",m[0][i]);
}
else
{
if(m[0][i]==0)
{
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",-m[0][i],m[1][i],-m[0][i],m[1][i]);
}
else
printf("x1=%.5lf+%.5lfi;x2=%.5lf-%.5lfi\n",m[0][i],m[1][i],m[0][i],m[1][i]);
}
}
}
return 0;
}
|
27
|
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.