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instruction_seed
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string
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difficulty
int64
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string
index
string
_source
string
difficulty_reasoning
string
__original_row_idx
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ms_id
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string
_domain
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messages
list
response_seed
string
gpt41_mini_response
string
length
int64
domain
string
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string
r1_reasoning_content
string
extract_solution
string
url
string
filename
string
success
bool
page_count
int64
page_number
int64
question_choices_solutions
string
extracted_question
string
extracted_answer_choices
sequence
matched_solution
string
qa_validation_outputs
bool
classifier_reasoning
string
is_organic_chemistry
bool
conversations
list
9165f5327dce910f3c1f6fdc04857981
"Some days ago, WJMZBMR learned how to answer the query \"how many times does a string x occur in a (...TRUNCATED)
"<think>\nOkay, I need to solve this programming problem. Let's read the problem carefully.\n\nThe t(...TRUNCATED)
codeforces
cc-by-4.0
code_contests
train
8
"import sys\n\ndef minimal_cyclic_shift(s):\n n = len(s)\n if n == 0:\n return \"\"\n (...TRUNCATED)
null
nvidia/OpenCodeReasoning
"The problem requires understanding of cyclical isomorphism, which involves recognizing that two str(...TRUNCATED)
207
6,578
"<think> Alright, so I have this problem where I need to find out how many substrings of a given str(...TRUNCATED)
code
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[{"from":"human","value":"Some days ago, WJMZBMR learned how to answer the query \"how many times do(...TRUNCATED)
null
"Background\nSKI combinator calculus, or simply SKI calculus, is a system similar to lambda calculus(...TRUNCATED)
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9
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stackexchange_codegolf
"The problem involves deep understanding of SKI combinators, Church encoding, and the construction o(...TRUNCATED)
332
14,723
"<think> Okay, I need to write a SKI expression that evaluates to the Church list equivalent of \"He(...TRUNCATED)
code
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[{"from":"human","value":"Background\nSKI combinator calculus, or simply SKI calculus, is a system s(...TRUNCATED)
afdf1f9f8b4e655a77e13f3a309028d7
"Ostap is preparing to play chess again and this time he is about to prepare. Thus, he was closely m(...TRUNCATED)
"<think>\nOkay, let's try to figure out how to solve this problem. So the problem is about determini(...TRUNCATED)
codeforces
cc-by-4.0
code_contests
train
8
"m, n = map(int, input().split())\npoints = list(map(int, input().split()))\n\n# Step 1: Check if an(...TRUNCATED)
null
nvidia/OpenCodeReasoning
"The problem requires the implementation of a solution that not only handles complex logic regarding(...TRUNCATED)
17
11,096
"<think> Okay, let's tackle this problem. Hmm, Ostap remembers the top n sorted points from a tourna(...TRUNCATED)
code
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[{"from":"human","value":"Ostap is preparing to play chess again and this time he is about to prepar(...TRUNCATED)
null
"For this golf, you will need to use more than one language.\nThe task\nA Rube Goldberg machine is a(...TRUNCATED)
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8
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stackexchange_codegolf
"The problem requires a deep understanding of multiple programming languages and coding techniques, (...TRUNCATED)
4
7,596
"<think> Okay, I need to solve this Rube Goldberg machine programming problem. The goal is to create(...TRUNCATED)
code
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[{"from":"human","value":"For this golf, you will need to use more than one language.\nThe task\nA R(...TRUNCATED)
4bb2c7d7ee0097058017b045a43f0949
"Given are two strings s and t consisting of lowercase English letters. Determine if there exists an(...TRUNCATED)
"<think>\nOkay, I need to solve this problem where I have to find the minimum i such that the first (...TRUNCATED)
atcoder
cc-by-4.0
code_contests
train
8
"import bisect\nfrom collections import defaultdict\n\ns = input().strip()\nt = input().strip()\n\ns(...TRUNCATED)
null
nvidia/OpenCodeReasoning
"This problem requires deep mathematical insights and a complex algorithmic implementation to handle(...TRUNCATED)
77
4,814
"<think> Okay, I need to solve this problem where I have to determine if string t can be a subsequen(...TRUNCATED)
code
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[{"from":"human","value":"Given are two strings s and t consisting of lowercase English letters. Det(...TRUNCATED)
null
"Task\nA pure mirror checkmate is a checkmate position, where the mated king is surrounded by 8 empt(...TRUNCATED)
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7
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stackexchange_codegolf
"The problem requires knowledge of chess rules and effective manipulation of data structures to repr(...TRUNCATED)
140
14,684
"<think> Okay, so I need to determine if a given chess position is a pure mirror checkmate. From the(...TRUNCATED)
code
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[{"from":"human","value":"Task\nA pure mirror checkmate is a checkmate position, where the mated kin(...TRUNCATED)
334c542a2a6284a323861b00a9ba64b4
"Teiji is a number theory lover. All numbers are his friends - so long as they are integers. One day(...TRUNCATED)
"<think>\nOkay, I need to solve this programming problem. Let's read the problem statement carefully(...TRUNCATED)
aizu
cc-by-4.0
code_contests
train
8
"import heapq\nimport bisect\n\ndef generate_primes(n):\n primes = []\n candidate = 2\n whi(...TRUNCATED)
null
nvidia/OpenCodeReasoning
"The problem involves calculating the divisor function σ(n), which is a number theory concept, and (...TRUNCATED)
335
3,439
"<think> Okay, so I have to write a program that calculates the maximum value of σ(n)/n for all n u(...TRUNCATED)
code
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[{"from":"human","value":"Teiji is a number theory lover. All numbers are his friends - so long as t(...TRUNCATED)
null
"Your task is to solve a new puzzle called Cubax. This toy is actually a Chinese puzzle whose expect(...TRUNCATED)
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9
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stackexchange_codegolf
"The problem requires extensive knowledge of advanced algorithms and combinatorial logic to generate(...TRUNCATED)
86
1,741
"<think> Okay, I need to solve this Cubax puzzle problem. Let's see what's required here. The proble(...TRUNCATED)
code
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[{"from":"human","value":"Your task is to solve a new puzzle called Cubax. This toy is actually a Ch(...TRUNCATED)
null
"There are many generalizations of Conway's Game of Life. One of them is the isotropic non-totalisti(...TRUNCATED)
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9
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stackexchange_codegolf
"The problem requires a deep understanding of cellular automata, specifically isotropic non-totalist(...TRUNCATED)
287
8,590
"<think> Okay, so I need to write a program that simulates an isotropic non-totalistic cellular auto(...TRUNCATED)
code
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[{"from":"human","value":"There are many generalizations of Conway's Game of Life. One of them is th(...TRUNCATED)
92c72e452076be9726d70a524193a40b
"The game of bingo is played on a 5 × 5 square grid filled with distinct numbers between 1 and 75. (...TRUNCATED)
"<think>\nOkay, let's tackle this problem. Hmm, the problem is about calculating the expected value (...TRUNCATED)
codeforces
cc-by-4.0
code_contests
train
8
"import math\n\nn, m, k = map(int, input().split())\n\n# Precompute log combinations for n choose s\(...TRUNCATED)
null
nvidia/OpenCodeReasoning
"The problem requires understanding of expectations in probability theory, combinatorial reasoning t(...TRUNCATED)
218
13,414
"<think> Okay, so I have this problem about calculating the expected value of a bingo game's score, (...TRUNCATED)
code
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[{"from":"human","value":"The game of bingo is played on a 5 × 5 square grid filled with distinct n(...TRUNCATED)
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