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id
string
instruction_seed
string
output
string
source
string
license
string
dataset
string
split
string
difficulty
int64
solution
string
index
string
_source
string
difficulty_reasoning
string
__original_row_idx
int64
ms_id
int64
reasoning
sequence
deepseek_solution
sequence
final_reasoning_trace
sequence
correct
sequence
_majority_responses
sequence
verified_final_reasoning_trace
string
conversations
list
1fbae6dbc968a4e3cf6fc65d547dbb25
"Your friend recently gave you some slimes for your birthday. You have a very large amount of slimes(...TRUNCATED)
"<think>\nOkay, let's try to solve this problem. So the task is to compute the expected sum of the s(...TRUNCATED)
codeforces
cc-by-4.0
code_contests
train
9
"n, p = map(int, input().split())\nq = p / 10**9\n\n# We model the expected sum E(k) after k steps a(...TRUNCATED)
null
nvidia/OpenCodeReasoning
"The problem requires understanding of probabilities, expected values, and potentially complex dynam(...TRUNCATED)
33,136
2,071
["Okay, let's try to tackle this problem. Hmm. So the problem is about calculating the expected sum (...TRUNCATED)
["To solve this problem, we need to calculate the expected sum of values of slimes on a board after (...TRUNCATED)
["<think>\nOkay, let's try to tackle this problem. Hmm. So the problem is about calculating the expe(...TRUNCATED)
[ true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true ]
["<think>\nOkay, let's try to tackle this problem. Hmm. So the problem is about calculating the expe(...TRUNCATED)
"<think>\nOkay, let's try to figure out this problem. So, the problem is about calculating the expec(...TRUNCATED)
[{"from":"human","value":"Your friend recently gave you some slimes for your birthday. You have a ve(...TRUNCATED)
b55ca68295839d1e973c99c18c662481
"Modern cryptosystems rely heavily on our inability to factor large integers quickly as the basis fo(...TRUNCATED)
"<think>\nOkay, I need to determine if a given very large number is prime or composite. The input ca(...TRUNCATED)
codechef
cc-by-4.0
code_contests
train
8
"n = int(input())\nif n <= 1:\n print(\"COMPOSITE\")\nelif n <= 3:\n print(\"PRIME\")\nelif n (...TRUNCATED)
null
nvidia/OpenCodeReasoning
"The problem involves testing the primality of very large numbers (up to 1000 digits), which require(...TRUNCATED)
36,229
2,264
["Okay, so I need to determine if a very large number (up to 1000 digits) is prime or composite. Hmm(...TRUNCATED)
["To solve this problem, we need to determine if a very large number (up to 1000 digits) is prime or(...TRUNCATED)
["<think>\nOkay, so I need to determine if a very large number (up to 1000 digits) is prime or compo(...TRUNCATED)
[ true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true ]
["<think>\nOkay, so I need to determine if a very large number (up to 1000 digits) is prime or compo(...TRUNCATED)
"<think>\nOkay, I need to determine if a given very large number is prime or composite. The input ca(...TRUNCATED)
[{"from":"human","value":"Modern cryptosystems rely heavily on our inability to factor large integer(...TRUNCATED)
null
"Background\nWe will be using a 3x3 cube for this challenge.\nRubik's cubers have their own notation(...TRUNCATED)
null
null
null
null
null
8
null
null
stackexchange_codegolf
"This problem requires deep mathematical insights into group theory and the specific notation for Ru(...TRUNCATED)
39,126
2,445
["Okay, I need to solve this problem where I have to expand a Rubik's cube commutator into the indiv(...TRUNCATED)
["To solve this problem, we need to expand a Rubik's cube commutator into its individual moves. The (...TRUNCATED)
["<think>\nOkay, I need to solve this problem where I have to expand a Rubik's cube commutator into (...TRUNCATED)
[ true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true ]
["<think>\nOkay, I need to solve this problem where I have to expand a Rubik's cube commutator into (...TRUNCATED)
"<think>\nOkay, let's see. I need to solve this problem where given a Rubik's cube commutator, I hav(...TRUNCATED)
[{"from":"human","value":"Background\nWe will be using a 3x3 cube for this challenge.\nRubik's cuber(...TRUNCATED)
bf4970763e987a9c3f08b3368030ae56
"If the girl doesn't go to Denis, then Denis will go to the girl. Using this rule, the young man lef(...TRUNCATED)
"<think>\nOkay, I need to solve this programming problem. Let's read the problem statement carefully(...TRUNCATED)
codeforces
cc-by-4.0
code_contests
train
8
"import heapq\n\nn, m = map(int, input().split())\nd = list(map(int, input().split()))\ng, r = map(i(...TRUNCATED)
null
nvidia/OpenCodeReasoning
"The problem requires a deep understanding of algorithm design, particularly in navigating a path su(...TRUNCATED)
9,923
620
["Okay, let's try to understand this problem. So Denis needs to cross the road from 0 to n, and ther(...TRUNCATED)
["To solve this problem, we need to determine the minimal time Denis can cross the road from point 0(...TRUNCATED)
["<think>\nOkay, let's try to understand this problem. So Denis needs to cross the road from 0 to n,(...TRUNCATED)
[ true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true ]
["<think>\nOkay, let's try to understand this problem. So Denis needs to cross the road from 0 to n,(...TRUNCATED)
"<think>\nOkay, let's see. So the problem is about Denis trying to cross a road with safety islands,(...TRUNCATED)
[{"from":"human","value":"If the girl doesn't go to Denis, then Denis will go to the girl. Using thi(...TRUNCATED)
null
"Challenge\nGiven a string of any length, write it as a triangle, spiraling out from the center. Fo(...TRUNCATED)
null
null
null
null
null
7
null
null
stackexchange_codegolf
"This problem requires a good understanding of string manipulation and complex positional logic. The(...TRUNCATED)
25,754
1,609
["Okay, I need to solve this problem where I have to write a string as a triangle spiraling out from(...TRUNCATED)
["To solve this problem, we need to write a given string as a triangle spiraling out from the center(...TRUNCATED)
["<think>\nOkay, I need to solve this problem where I have to write a string as a triangle spiraling(...TRUNCATED)
[ true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true ]
["<think>\nOkay, I need to solve this problem where I have to write a string as a triangle spiraling(...TRUNCATED)
"<think>\nOkay, I need to solve this problem where I have to arrange a given string into a triangle (...TRUNCATED)
[{"from":"human","value":"Challenge\nGiven a string of any length, write it as a triangle, spiraling(...TRUNCATED)
null
"Given an input integer from 1, 2, ..., n, the task to write code to make a number as close as possi(...TRUNCATED)
null
null
null
null
null
8
null
null
stackexchange_codegolf
"This problem requires a deep understanding of mathematical optimization and algorithm design to fin(...TRUNCATED)
43,657
2,728
["Okay, I need to solve this problem where given an integer n, I have to generate an arithmetic expr(...TRUNCATED)
["To solve this problem, we need to generate an arithmetic expression using integers from 1 to n (ea(...TRUNCATED)
["<think>\nOkay, I need to solve this problem where given an integer n, I have to generate an arithm(...TRUNCATED)
[ true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true ]
["<think>\nOkay, I need to solve this problem where given an integer n, I have to generate an arithm(...TRUNCATED)
"<think>\nOkay, I need to solve this problem where given an integer n, I have to generate an arithme(...TRUNCATED)
[{"from":"human","value":"Given an input integer from 1, 2, ..., n, the task to write code to make a(...TRUNCATED)
37f9d5a2fc8d7272c8abd1b55b53df61
"ZS the Coder has recently found an interesting concept called the Birthday Paradox. It states that (...TRUNCATED)
"<think>\nOkay, let's tackle this problem. So, the task is to compute the probability that at least (...TRUNCATED)
codeforces
-
-
-
8
"MOD = 10**6 + 3\nphi_MOD = MOD - 1\n\nn, k = map(int, input().split())\n\n# Check if k exceeds 2^n\(...TRUNCATED)
null
nvidia/OpenCodeReasoning
"This problem involves advanced probability concepts, require insights into combinatorial structures(...TRUNCATED)
41,521
2,595
["Okay, I need to solve this programming problem. Let's read the question carefully.\n\nSo the probl(...TRUNCATED)
["To solve this problem, we need to determine the probability that at least two out of k people shar(...TRUNCATED)
["<think>\nOkay, I need to solve this programming problem. Let's read the question carefully.\n\nSo (...TRUNCATED)
[ true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true ]
["<think>\nOkay, I need to solve this programming problem. Let's read the question carefully.\n\nSo (...TRUNCATED)
"<think>\nOkay, let's tackle this problem. Hmm. So the problem is about calculating the probability (...TRUNCATED)
[{"from":"human","value":"ZS the Coder has recently found an interesting concept called the Birthday(...TRUNCATED)
null
"A composition of an integer \\$n\\$ is a representation of \\$n\\$ as a sum of positive integers. F(...TRUNCATED)
null
null
null
null
null
8
null
null
stackexchange_codegolf
"This problem requires a deep understanding of combinatorial mathematics, specifically related to co(...TRUNCATED)
43,154
2,697
["Okay, I need to find the number of compositions of an integer n where the greatest part is odd. Le(...TRUNCATED)
["To solve this problem, we need to determine the number of compositions of an integer \\( n \\) whe(...TRUNCATED)
["<think>\nOkay, I need to find the number of compositions of an integer n where the greatest part i(...TRUNCATED)
[ true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true ]
["<think>\nOkay, I need to find the number of compositions of an integer n where the greatest part i(...TRUNCATED)
"<think>\nOkay, let's see. The problem is to compute the number of compositions of an integer n wher(...TRUNCATED)
[{"from":"human","value":"A composition of an integer \\$n\\$ is a representation of \\$n\\$ as a su(...TRUNCATED)
null
"As you may very well know python has lists. As you might not know these lists can contain themselv(...TRUNCATED)
null
null
null
null
null
8
null
null
stackexchange_codegolf
"The problem requires knowledge of data structures (specifically self-referential lists) and a deep (...TRUNCATED)
6,815
425
["Okay, I need to write a Python function called equal that compares two lists which might contain t(...TRUNCATED)
["To solve this problem, we need to compare two lists that may contain themselves or other lists in (...TRUNCATED)
["<think>\nOkay, I need to write a Python function called equal that compares two lists which might (...TRUNCATED)
[ true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true ]
["<think>\nOkay, I need to write a Python function called equal that compares two lists which might (...TRUNCATED)
"<think>\nOkay, I need to solve this problem where I have to compare two Python lists that might con(...TRUNCATED)
[{"from":"human","value":"As you may very well know python has lists. As you might not know these l(...TRUNCATED)
null
"Challenge\nGiven an array of positive integers and a threshold, the algorithm should output a set o(...TRUNCATED)
null
null
null
null
null
8
null
null
stackexchange_codegolf
"The problem involves advanced concepts such as greedy algorithms, combinatorial optimization, and p(...TRUNCATED)
40,985
2,561
["Okay, let's tackle this problem. So, the task is to split an array of positive integers into group(...TRUNCATED)
["To solve this problem, we need to split an array of positive integers into consecutive groups such(...TRUNCATED)
["<think>\nOkay, let's tackle this problem. So, the task is to split an array of positive integers i(...TRUNCATED)
[ true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true ]
["<think>\nOkay, let's tackle this problem. So, the task is to split an array of positive integers i(...TRUNCATED)
"<think>\nOkay, let's see. I need to solve this problem where given an array of positive integers an(...TRUNCATED)
[{"from":"human","value":"Challenge\nGiven an array of positive integers and a threshold, the algori(...TRUNCATED)
End of preview.