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211b014398b377b9
You are given an n x n grid where each cell can have one of three values: - 0 representing an empty cell - 1 representing a fresh orange - 2 representing a rotten orange Every minute, any fresh orange that is 4-directionally adjacent to a rotten orange becomes rotten. Your task is determine the minimum number of minu...
The problem asks for the minimum number of minutes until no fresh oranges (value 1) remain in an $n \times n$ grid. The grid is given as: $$ \begin{bmatrix} 1 & 1 & 1 \\ 0 & 1 & 1 \\ 1 & 1 & 1 \end{bmatrix} $$ Values: - 0: Empty - 1: Fresh - 2: Rotten This is a classic Breadth-First Search (BFS) problem (LeetCode 994:...
```json { "answer": -1 } ```
general
PrimeIntellect/SYNTHETIC-2-SFT-verified
en
reasoning_gym
null
null
{ "mode": "section-aware", "level_name": "section-aware-v2", "raw_tokens": 4321, "caveman_tokens": 4320, "template_version": "caveman_convert/2.0", "policy_version": "policy/1.1", "spans": [ { "i": 0, "start": 0, "end": 218, "label": "compute", "action": "verbatim" },...
9a1ea1061b87b416
(7) Given the sequence $\left\{a_{n}\right\}$ where the first term $a_{1}=2, a_{n+1}=\frac{5 a_{n}-13}{3 a_{n}-7}$, then $a_{2011}=$
The user wants to find the value of $a_{2011}$ given the sequence defined by $a_1 = 2$ and $a_{n+1} = \frac{5 a_n - 13}{3 a_n - 7}$. Let's compute the first few terms to see if there's a pattern. $a_1 = 2$. $a_2 = \frac{5(2) - 13}{3(2) - 7} = \frac{10 - 13}{6 - 7} = \frac{-3}{-1} = 3$. $a_3 = \frac{5(3) - 13}{3(3) - 7...
The sequence $\{a_n\}$ is defined by the recurrence relation $a_{n+1} = \frac{5 a_n - 13}{3 a_n - 7}$ with the initial term $a_1 = 2$. Let's compute the first few terms of the sequence to identify a pattern. For $n=1$: $a_1 = 2$. $a_2 = \frac{5(2) - 13}{3(2) - 7} = \frac{10 - 13}{6 - 7} = \frac{-3}{-1} = 3$. For $n...
math
PrimeIntellect/SYNTHETIC-2-SFT-verified
en
verifiable_math
true
{ "solve_rate": 0.75, "k": 4 }
{ "mode": "section-aware", "level_name": "section-aware-v2", "raw_tokens": 9326, "caveman_tokens": 9325, "template_version": "caveman_convert/2.0", "policy_version": "policy/1.1", "spans": [ { "i": 0, "start": 0, "end": 366, "label": "compute", "action": "verbatim" },...
e93265780156c03c
81. A long rope, the first time used more than half of its total length by 3 meters, the second time used more than half of the remaining by 5 meters, and finally 7 meters were left. The original length of this long rope is $\qquad$ meters.
Here's a thinking process that leads to the solution: 1. **Analyze the Problem:** * We have a long rope with an unknown original length. Let's call it $x$. * **First usage:** "used more than half of its total length by 3 meters". This phrasing is slightly ambiguous. Let's interpret it carefully. *...
Let the original length of the rope be $x$ meters. **First usage:** The problem states that the first time, more than half of the total length was used by 3 meters. Mathematically, this means the amount used was $\frac{1}{2}x + 3$. The remaining length after the first usage is: $$ \text{Remaining}_1 = x - \left(\fra...
math
PrimeIntellect/SYNTHETIC-2-SFT-verified
en
verifiable_math
true
{ "solve_rate": 0.5, "k": 4 }
{ "mode": "section-aware", "level_name": "section-aware-v2", "raw_tokens": 5468, "caveman_tokens": 5467, "template_version": "caveman_convert/2.0", "policy_version": "policy/1.1", "spans": [ { "i": 0, "start": 0, "end": 463, "label": "compute", "action": "verbatim" },...
37d9fa13a6daa1c3
Title: Sereja and Coat Rack Time Limit: None seconds Memory Limit: None megabytes Problem Description: Sereja owns a restaurant for *n* people. The restaurant hall has a coat rack with *n* hooks. Each restaurant visitor can use a hook to hang his clothes on it. Using the *i*-th hook costs *a**i* rubles. Only one per...
The user wants a Python solution for the "Sereja and Coat Rack" problem. **Problem Analysis:** 1. **Inputs:** * $n$: Number of hooks. * $d$: Fine amount if a hook is not available. * $a$: A list of integers representing the cost of using each hook. * $m$: Number of guests. 2. **Logic:** *...
```python import sys def solve(): # Read all input from standard input. # Using sys.stdin.read().split() is efficient and handles various whitespace formatting # (newlines vs spaces) robustly for competitive programming inputs. input_data = sys.stdin.read().split() if not input_data: ...
code
PrimeIntellect/SYNTHETIC-2-SFT-verified
en
prime_rl_code
true
{ "solve_rate": 1, "k": 4 }
{ "mode": "section-aware", "level_name": "section-aware-v2", "raw_tokens": 5963, "caveman_tokens": 5962, "template_version": "caveman_convert/2.0", "policy_version": "policy/1.1", "spans": [ { "i": 0, "start": 0, "end": 146, "label": "compute", "action": "verbatim" },...
590c1565b9661273
2. If the focal distance of the conic section $\frac{x^{2}}{k-2}+\frac{y^{2}}{k+5}=1$ is independent of the real number $k$, then its foci coordinates are $\qquad$
The user wants me to find the coordinates of the foci of a conic section given by the equation $\frac{x^{2}}{k-2}+\frac{y^{2}}{k+5}=1$. The condition is that the focal distance (which usually refers to the distance between the foci, i.e., $2c$, or sometimes just $c$) is independent of the real number $k$. Let the equa...
The equation of the conic section is given by: $$ \frac{x^{2}}{k-2} + \frac{y^{2}}{k+5} = 1 $$ Let the denominators be $A = k-2$ and $B = k+5$. The equation is of the form $\frac{x^2}{A} + \frac{y^2}{B} = 1$. The type of conic section depends on the signs of $A$ and $B$. 1. **Case 1: Ellipse** For the equation t...
math
PrimeIntellect/SYNTHETIC-2-SFT-verified
en
verifiable_math
true
{ "solve_rate": 0.75, "k": 4 }
{ "mode": "section-aware", "level_name": "section-aware-v2", "raw_tokens": 9651, "caveman_tokens": 9650, "template_version": "caveman_convert/2.0", "policy_version": "policy/1.1", "spans": [ { "i": 0, "start": 0, "end": 490, "label": "compute", "action": "verbatim" },...
876f6b2749c0a233
You are given an array of integers. Check whether there exists a number in this array which is divisible by all other numbers in this array. Output 1, if such a number exists, and 0 otherwise. Input The only line of the input contains a list of space-separated integers ai (1 ≤ ai ≤ 100) — elements of the array. The s...
Read line: `input().split()`. Parse ints: `arr = list(map(int, line))`. Constraint check: $1 \le a_i \le 100$, $2 \le N \le 10$. Iterate candidates: `for x in arr:`. Check divisibility: `ok = True`. Iterate all elements: `for y in arr:`. If `x % y != 0`: `ok = False`; break. If `ok`: print 1; exit. If loo...
```python import sys def solve(): # Read all input from standard input. # The problem specifies a single line with space-separated integers. # sys.stdin.read().split() is robust for reading tokens regardless of whitespace. input_data = sys.stdin.read().split() if not input_data: retu...
code
PrimeIntellect/SYNTHETIC-2-SFT-verified
en
prime_rl_code
true
{ "solve_rate": 1, "k": 4 }
{ "mode": "section-aware", "level_name": "section-aware-v2", "raw_tokens": 7737, "caveman_tokens": 5930, "template_version": "caveman_convert/2.0", "policy_version": "policy/1.1", "spans": [ { "i": 0, "start": 0, "end": 431, "label": "plan", "action": "caveman:medium" ...
2150ba12f8850479
7.126. $\log _{x} 9+\log _{x^{2}} 729=10$.
Here's my thought process for solving the equation $\log _{x} 9+\log _{x^{2}} 729=10$: 1. **Analyze the Equation:** The given equation is $\log _{x} 9+\log _{x^{2}} 729=10$. I need to find the value(s) of $x$ that satisfy this equation. 2. **Identify Constraints:** For logarithms to be defined: * ...
To solve the equation $\log _{x} 9+\log _{x^{2}} 729=10$, we first determine the domain of validity for the variable $x$. For the logarithms to be defined, the base must be positive and not equal to 1. Thus, we require: $$x > 0 \quad \text{and} \quad x \neq 1$$ Next, we simplify the logarithmic terms. We can express...
math
PrimeIntellect/SYNTHETIC-2-SFT-verified
en
verifiable_math
true
{ "solve_rate": 0.75, "k": 4 }
{ "mode": "section-aware", "level_name": "section-aware-v2", "raw_tokens": 5708, "caveman_tokens": 5707, "template_version": "caveman_convert/2.0", "policy_version": "policy/1.1", "spans": [ { "i": 0, "start": 0, "end": 184, "label": "compute", "action": "verbatim" },...
ad9ae93955d26874
"explain the anatomy including specific blood and veins and nerves supply with the location and meas(...TRUNCATED)
"Topic: Anatomy of GI Tract.\nRegions: Mouth, Pharynx, Esophagus, Stomach, Small Intestine, Large In(...TRUNCATED)
"\n\n# Comprehensive Anatomical, Vascular, and Neurological Atlas of the Gastrointestinal (GI) Tract(...TRUNCATED)
creative
m-a-p/DeepWriting-20K
en
Ordinary Life - Factual QAs
null
null
{"mode":"section-aware","level_name":"section-aware-v2","raw_tokens":2129,"caveman_tokens":1942,"tem(...TRUNCATED)
a97bae0c280c1bc4
"Write a story that falls into the genre of Science Fiction, Romance, based on the following prompt:(...TRUNCATED)
"Genre: Sci-Fi, Romance.\nPrompt: 2+ year relationship; she reveals alien nature.\nTone: Sarcastic \(...TRUNCATED)
"\n\nThe anniversary cake had been a three-tiered masterpiece, covered in white frosting and edible (...TRUNCATED)
creative
m-a-p/DeepWriting-20K
en
Artistic - Creative & Narrative Writing
null
null
{"mode":"section-aware","level_name":"section-aware-v2","raw_tokens":1987,"caveman_tokens":1627,"tem(...TRUNCATED)
bae330bb4f5f27c1
"A cylinder has a height of $10$ and a radius of $3.$ Determine the total surface area, including th(...TRUNCATED)
"The user wants to find the total surface area of a cylinder.\nThe dimensions given are:\n- Height ((...TRUNCATED)
"\n\nThe problem asks for the total surface area of a cylinder with a height of $10$ and a radius of(...TRUNCATED)
math
PrimeIntellect/SYNTHETIC-2-SFT-verified
en
verifiable_math
true
{ "solve_rate": 0.75, "k": 4 }
{"mode":"section-aware","level_name":"section-aware-v2","raw_tokens":6747,"caveman_tokens":6746,"tem(...TRUNCATED)
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flint-section-aware-step37seg-qwen3.5-4b

Compressed ("caveman") reasoning traces for SFT — the section-aware-step37seg variant of the flint reasoning-compression pipeline. Converted from verified self-distilled traces by Qwen/Qwen3.5-4B (segmenter: stepfun/step-3.7-flash:free), policy policy/1.1, template caveman_convert/2.0.

Hybrid decomposition probe: stepfun/step-3.7-flash segments (stronger span labels), the target model itself converts (self-voice). Isolates segmentation quality from converter voice in the stronger-teacher falsification.

Each row: input, reasoning (compressed trace), answer (carried verbatim from the source), domain, verified, difficulty, and meta with per-row provenance (converter/segmenter model, span labels + actions for section-aware rows, token counts raw vs compressed).

  • Rows: 593 — domains: {"general": 202, "math": 172, "code": 90, "creative": 129}
  • Mean compression ratio (caveman/raw tokens): 0.87
  • Content-preservation linters (numbers, negations, byte-identical code blocks, repetition) reject unsafe conversions; rejects are excluded.

Part of the caveman reasoning-compression ablation study.

Build manifest

{
  "created_at": "2026-07-10T08:38:04+00:00",
  "git_sha": "ff1275c69333675e45437658e790aa938f04d5c0",
  "variant": "section-aware",
  "config": {
    "mode": "section"
  },
  "counts": {
    "ok": 593,
    "rejected": 55,
    "failed": 0
  },
  "convert_model": "Qwen/Qwen3.5-4B",
  "segment_model": "stepfun/step-3.7-flash:free",
  "template_version": "caveman_convert/2.0",
  "policy_version": "policy/1.1",
  "segment_template_version": "segment/1.0",
  "tokenizer": "Qwen/Qwen3.5-4B",
  "input_rows": 648
}
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