id stringlengths 16 16 | domain stringclasses 5
values | source stringclasses 25
values | difficulty stringclasses 3
values | messages listlengths 3 3 | ground_truth stringlengths 0 26k | quality_score float64 4.5 10 | teacher_model stringclasses 1
value | completion_tokens int64 34 37.4k | generation_time stringlengths 32 32 |
|---|---|---|---|---|---|---|---|---|---|
3516c7f5fba86714 | code | CodeAlpaca | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | ^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$ | 9 | qwen3.8-max-preview | 1,404 | 2026-07-22T06:58:12.770858+00:00 |
6907e1fa3cdfe4bc | reasoning | QASC | hard | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | D | 9.5 | qwen3.8-max-preview | 722 | 2026-07-21T18:04:30.350830+00:00 |
3474bcd3bfd9e429 | reasoning | OpenBookQA | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | B | 9.5 | qwen3.8-max-preview | 399 | 2026-07-21T19:08:30.938847+00:00 |
6bee7849f9d9d094 | math | MetaMathQA | medium | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 54000 | 10 | qwen3.8-max-preview | 321 | 2026-07-21T22:30:35.294811+00:00 |
6524e27f3f2b2bc6 | code | MBPP | easy | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | def count_char_position(str1):
count_chars = 0
for i in range(len(str1)):
if ((i == ord(str1[i]) - ord('A')) or
(i == ord(str1[i]) - ord('a'))):
count_chars += 1
return count_chars | 9 | qwen3.8-max-preview | 951 | 2026-07-21T18:39:50.919057+00:00 |
ae6471598f789b97 | code | CodeAlpaca | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | def characterCount(str):
# create a dictionary and store count
# of every character
freq = {}
for i in str:
if i in freq:
freq[i] += 1
else:
freq[i] = 1
# return the dictionary
return freq
# Driver code
str = "Hello world"
pri... | 9 | qwen3.8-max-preview | 939 | 2026-07-21T19:28:46.045785+00:00 |
084e7294df0d0ace | reasoning | QASC | hard | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | C | 9.5 | qwen3.8-max-preview | 912 | 2026-07-22T06:13:26.975267+00:00 |
a36c2b693c08f4ee | code | CodeAlpaca | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | [2, 3, 4, 5] | 10 | qwen3.8-max-preview | 464 | 2026-07-22T02:44:00.941830+00:00 |
9746bb6da19021d5 | reasoning | CommonsenseQA | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | D | 9.5 | qwen3.8-max-preview | 475 | 2026-07-21T17:59:11.484910+00:00 |
a844ec481eb6b7f2 | reasoning | SciQ | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | B | 9.5 | qwen3.8-max-preview | 402 | 2026-07-22T07:30:12.132375+00:00 |
bc36168148624572 | instruction | tulu-3 | medium | [
{
"role": "system",
"content": "You are a helpful, precise assistant. Follow instructions exactly.\n\nFormat your response as:\n<think>\n[Understand what is being asked. Identify constraints and requirements.\nPlan your response structure.]\n</think>\n\n[Your complete, well-structured response following all... | 7.5 | qwen3.8-max-preview | 468 | 2026-07-22T05:47:03.987603+00:00 | |
940f0f81b211a0cb | code | CodeAlpaca | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | a {
text-decoration: underline;
} | 7 | qwen3.8-max-preview | 177 | 2026-07-22T01:38:41.248529+00:00 |
ac5f661ca7c10bba | reasoning | SciQ | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | B | 9.5 | qwen3.8-max-preview | 362 | 2026-07-21T20:05:37.036076+00:00 |
04a5558ee5a86994 | code | Evol-Code | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | def bubble_sort(arr):
n = len(arr)
comparisons = 0
swaps = 0
for i in range(n-1):
for j in range(n-i-1):
comparisons += 1
if arr[j] > arr[j+1]:
swaps += 1
arr[j], arr[j+1] = arr[j+1], arr[j]
return arr, comparisons, swaps
arr... | 8 | qwen3.8-max-preview | 2,848 | 2026-07-21T11:22:47.648164+00:00 |
ac00056bf6f7d0fc | reasoning | ARC-Challenge | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | C | 9.5 | qwen3.8-max-preview | 461 | 2026-07-21T18:50:15.993067+00:00 |
a8cbf290ca5fe6bd | math | MetaMathQA | easy | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 18 | 10 | qwen3.8-max-preview | 327 | 2026-07-22T01:15:40.938747+00:00 |
69c666d013922f86 | reasoning | CommonsenseQA | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | D | 9.5 | qwen3.8-max-preview | 781 | 2026-07-21T23:12:20.333096+00:00 |
97e2a1ae3bbfd39b | code | CodeAlpaca | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | SELECT customer_id, first_name, last_name
FROM customers
WHERE country = 'United States'; | 8.5 | qwen3.8-max-preview | 552 | 2026-07-21T11:34:18.191407+00:00 |
853237ccb998c764 | code | Evol-Code | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | Here's a correct program in Python that finds the sum of all prime numbers from 0 to n and the sum of all even composite numbers from 0 to n:
```python
def is_prime(num):
if num < 2:
return False
for i in range(2, int(num**0.5) + 1):
if num % i == 0:
return False
return True
de... | 9 | qwen3.8-max-preview | 842 | 2026-07-21T22:40:17.407894+00:00 |
1c2dcc8d8e5269e9 | instruction | tulu-3 | medium | [
{
"role": "system",
"content": "You are a helpful, precise assistant. Follow instructions exactly.\n\nFormat your response as:\n<think>\n[Understand what is being asked. Identify constraints and requirements.\nPlan your response structure.]\n</think>\n\n[Your complete, well-structured response following all... | 6 | qwen3.8-max-preview | 217 | 2026-07-22T05:23:42.925981+00:00 | |
122db3da6f86084a | reasoning | CommonsenseQA | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | C | 9.5 | qwen3.8-max-preview | 512 | 2026-07-22T04:03:10.035373+00:00 |
46172e093bb85829 | code | CodeAlpaca | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | Name Location
John United States
Julia Germany | 9 | qwen3.8-max-preview | 719 | 2026-07-21T18:19:17.640525+00:00 |
e759c931d05e8ff3 | code | Evol-Code | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | To sort the list in descending order using recursion, we can implement a recursive function that divides the list into smaller sublists and then merges them back together in reverse order. Here's an algorithm that achieves this:
1. Define a function called `merge_sort_descending` that takes a list `arr` as input.
2. B... | 9 | qwen3.8-max-preview | 1,167 | 2026-07-21T21:48:55.412605+00:00 |
7f0c17bd23dd4fc5 | code | CodeAlpaca | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | let num = 3;
let count = 0;
for (let i = 0; i < arr.length; i++) {
if (arr[i] === num) {
count++;
}
}
console.log(count); | 9 | qwen3.8-max-preview | 532 | 2026-07-21T21:51:50.788342+00:00 |
6312b39933c9bf69 | code | Evol-Code | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | Here is a modified version of the code that includes the additional requirements:
```python
import re
def hello(name=None):
if name is None:
print("Hello!")
elif len(name) > 10 or re.search("[^a-zA-Z ]", name):
print("Invalid name!")
else:
print("Hello, {}!".format(name))
```
In t... | 9 | qwen3.8-max-preview | 1,097 | 2026-07-21T16:29:50.187151+00:00 |
848c8824a0d6ccb5 | math | MetaMathQA | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 29 | 10 | qwen3.8-max-preview | 227 | 2026-07-22T06:55:26.228284+00:00 |
478d6ce0415f9df7 | code | CodeAlpaca | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | public class ArraySort {
public static int[] sortArray(int[] arr) {
int n = arr.length;
for (int i = 0; i < n - 1; i++) {
int min_idx = i;
for (int j = i + 1; j < n; j++)
if (arr[j] < arr[min_idx])
min_idx = j;
int temp ... | 8.5 | qwen3.8-max-preview | 1,598 | 2026-07-22T02:11:35.457824+00:00 |
be84a07d941d626d | reasoning | QASC | hard | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | C | 9.5 | qwen3.8-max-preview | 788 | 2026-07-22T07:05:19.191122+00:00 |
110d1e108f9076e4 | math | NuminaMath-CoT | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 9 | qwen3.8-max-preview | 832 | 2026-07-22T01:37:37.823086+00:00 | |
8eb43ea16b0ec47d | math | NuminaMath-CoT | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 9 | qwen3.8-max-preview | 439 | 2026-07-21T22:05:43.979299+00:00 | |
f4316cf963f8dbf0 | instruction | tulu-3 | medium | [
{
"role": "system",
"content": "You are a helpful, precise assistant. Follow instructions exactly.\n\nFormat your response as:\n<think>\n[Understand what is being asked. Identify constraints and requirements.\nPlan your response structure.]\n</think>\n\n[Your complete, well-structured response following all... | 7.5 | qwen3.8-max-preview | 308 | 2026-07-22T00:39:06.646477+00:00 | |
8181fbb3dcc7763f | reasoning | ARC-Challenge | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | D | 9.5 | qwen3.8-max-preview | 614 | 2026-07-22T02:22:17.396482+00:00 |
f6d770427c2cd36d | math | MATH/algebra | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | When $x<-2$ or $x>3$, we have $x^2+bx+c>0$. That means that $x^2+bx+c=0$ at $x=-2$ and $x=3$. So, the parabola has roots at -2 and 3, giving us $(x+2)(x-3)=0$. We can now write $x^2+bx+c=(x+2)(x-3)=x^2-x-6$. Thus, $b=-1$, $c=-6$, and $b+c=-1+(-6)=\boxed{-7}$. | 9 | qwen3.8-max-preview | 518 | 2026-07-21T19:26:32.621073+00:00 |
dfd7b91dcf9eb730 | reasoning | SciQ | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | D | 9.5 | qwen3.8-max-preview | 497 | 2026-07-21T21:26:30.568878+00:00 |
6e4b0cf3a0ec30d9 | instruction | tulu-3 | medium | [
{
"role": "system",
"content": "You are a helpful, precise assistant. Follow instructions exactly.\n\nFormat your response as:\n<think>\n[Understand what is being asked. Identify constraints and requirements.\nPlan your response structure.]\n</think>\n\n[Your complete, well-structured response following all... | 6 | qwen3.8-max-preview | 170 | 2026-07-22T08:37:24.431219+00:00 | |
8edeb2cf0e246e53 | reasoning | CommonsenseQA | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | E | 9.5 | qwen3.8-max-preview | 541 | 2026-07-21T12:27:35.035801+00:00 |
64b2bf5f4aff8f4d | math | OrcaMath | easy | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | The smallest number is 10 and the next smallest number is 11.
The sum of these two numbers is: 10 + 11 = 21. | 9 | qwen3.8-max-preview | 152 | 2026-07-21T18:49:35.024263+00:00 |
ae0d07d19e3fa83c | code | Evol-Code | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | Here is the implementation of the requested function:
```python
def top_k_rows(matrix, k):
# Calculate the sum of absolute differences for each row
diffs = []
for row in matrix:
row_diff = 0
for i in range(len(row) - 1):
if row[i] is not None and row[i + 1] is not None:
... | 7.5 | qwen3.8-max-preview | 3,109 | 2026-07-21T11:24:28.266256+00:00 |
d9d24dbf87c82fd9 | reasoning | CommonsenseQA | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | C | 9.5 | qwen3.8-max-preview | 647 | 2026-07-21T19:17:45.281320+00:00 |
9e340431c7d3cbbc | math | MetaMathQA | easy | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 1 | 9 | qwen3.8-max-preview | 3,879 | 2026-07-21T23:09:50.580374+00:00 |
1334ab9bf5c54808 | math | NuminaMath-CoT | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 7.5 | qwen3.8-max-preview | 5,114 | 2026-07-21T16:11:58.089073+00:00 | |
d539f98019f4d6eb | reasoning | CommonsenseQA | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | E | 9.5 | qwen3.8-max-preview | 594 | 2026-07-22T06:39:58.113500+00:00 |
8dab9594e9ccdd46 | reasoning | OpenBookQA | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | A | 9.5 | qwen3.8-max-preview | 1,171 | 2026-07-22T08:24:48.473882+00:00 |
f57adc79a66c9e2c | instruction | tulu-3 | medium | [
{
"role": "system",
"content": "You are a helpful, precise assistant. Follow instructions exactly.\n\nFormat your response as:\n<think>\n[Understand what is being asked. Identify constraints and requirements.\nPlan your response structure.]\n</think>\n\n[Your complete, well-structured response following all... | 7.5 | qwen3.8-max-preview | 312 | 2026-07-21T11:51:05.843889+00:00 | |
61163c41660f3f07 | math | MATH/algebra | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | Given that we have $- 35 - x + 12x^2$ and the factor $3x + 5$, we can guess that the other factor must be $4x - 7$ since the linear terms must multiply to $12x^2$ and the constant terms must multiply to $-35.$
Expanding, we can verify that this is correct, and therefore our answer is $\boxed{(4x - 7)}.$ | 9 | qwen3.8-max-preview | 413 | 2026-07-21T23:09:32.522168+00:00 |
fc8afd112068ac9f | math | NuminaMath-CoT | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 7.5 | qwen3.8-max-preview | 3,321 | 2026-07-21T20:11:44.275445+00:00 | |
8d0b4c93ff707097 | code | CodeAlpaca | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | ^\d{3,}$ | 9 | qwen3.8-max-preview | 778 | 2026-07-21T13:16:54.248539+00:00 |
830bc6ad35e1278d | reasoning | SciQ | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | B | 9.5 | qwen3.8-max-preview | 326 | 2026-07-22T06:25:54.671078+00:00 |
32cd7e2b2aeffe40 | code | Evol-Code | hard | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | import threading
import heapq
import statistics
from collections import Counter
class ThreadSafeQueue:
def __init__(self):
self.queue = []
self.lock = threading.Lock()
def enqueue(self, element):
with self.lock:
if len(self.queue) >= 100:
heapq.heappushpop(s... | 7.5 | qwen3.8-max-preview | 5,297 | 2026-07-22T07:52:16.708218+00:00 |
ea0d019cd4979640 | math | MetaMathQA | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 0 | 10 | qwen3.8-max-preview | 151 | 2026-07-21T20:53:28.961761+00:00 |
09022c2ac3d4c024 | math | NuminaMath-CoT | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 9 | qwen3.8-max-preview | 553 | 2026-07-22T05:25:17.490160+00:00 | |
e389114aa98685cc | reasoning | CommonsenseQA | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | A | 9.5 | qwen3.8-max-preview | 583 | 2026-07-22T04:22:47.428466+00:00 |
1d6e2c4130d1f417 | instruction | tulu-3 | medium | [
{
"role": "system",
"content": "You are a helpful, precise assistant. Follow instructions exactly.\n\nFormat your response as:\n<think>\n[Understand what is being asked. Identify constraints and requirements.\nPlan your response structure.]\n</think>\n\n[Your complete, well-structured response following all... | 6 | qwen3.8-max-preview | 349 | 2026-07-22T03:42:35.622865+00:00 | |
d7f16c4d15a60334 | math | OrcaMath | easy | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | In April, Natalia sold clips to 48 of her friends. In May, she sold half as many clips as in April, so she sold 48 / 2 = 24 clips in May.
Altogether, in April and May, Natalia sold 48 (April) + 24 (May) = 72 clips. | 9 | qwen3.8-max-preview | 153 | 2026-07-22T00:34:36.347579+00:00 |
72dc40386cdaaaee | reasoning | SciQ | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | B | 9.5 | qwen3.8-max-preview | 583 | 2026-07-22T07:16:40.187891+00:00 |
9d6e57050ca3208b | instruction | tulu-3 | medium | [
{
"role": "system",
"content": "You are a helpful, precise assistant. Follow instructions exactly.\n\nFormat your response as:\n<think>\n[Understand what is being asked. Identify constraints and requirements.\nPlan your response structure.]\n</think>\n\n[Your complete, well-structured response following all... | 6 | qwen3.8-max-preview | 384 | 2026-07-21T20:42:55.648568+00:00 | |
6bb76c8c39f805d2 | math | MetaMathQA | easy | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 8 | 10 | qwen3.8-max-preview | 615 | 2026-07-21T13:19:45.100810+00:00 |
09b8c19b27e77975 | code | Evol-Code | hard | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | To increase the difficulty, we can modify the code to raise a custom exception instead of printing a message when the coordinates are not within the specified range. Additionally, we can update the code to use property decorators to ensure that the x and y coordinates are always within the range of 0 to 100.
Here is t... | 7.5 | qwen3.8-max-preview | 4,042 | 2026-07-22T05:14:37.586222+00:00 |
b503a26170e5e8f0 | math | NuminaMath-CoT | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 9 | qwen3.8-max-preview | 470 | 2026-07-22T09:01:14.583836+00:00 | |
21938339f07c5909 | math | MetaMathQA | easy | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 68 | 10 | qwen3.8-max-preview | 368 | 2026-07-21T14:11:40.145164+00:00 |
9e8181893f174817 | math | MetaMathQA | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 26 | 10 | qwen3.8-max-preview | 212 | 2026-07-21T19:26:52.907900+00:00 |
de85a579d0a1ea37 | math | OrcaMath | easy | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | To calculate the total amount of electricity required to run the computer for 25 seconds, you simply multiply the power consumption per second by the number of seconds:
30 watts/second * 25 seconds = 750 watts
So, the computer requires 750 watts of electricity to run for 25 seconds. | 9 | qwen3.8-max-preview | 204 | 2026-07-21T19:29:51.898455+00:00 |
24f5ade86b932753 | reasoning | QASC | hard | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | B | 9.5 | qwen3.8-max-preview | 742 | 2026-07-22T05:07:18.038104+00:00 |
97dc6c74f88bcd88 | math | MetaMathQA | medium | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 5 | 10 | qwen3.8-max-preview | 566 | 2026-07-21T17:21:52.124499+00:00 |
ab4c8d7a3e401338 | reasoning | QASC | hard | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | B | 9.5 | qwen3.8-max-preview | 656 | 2026-07-21T17:44:10.951811+00:00 |
83d74c62d659a0f4 | reasoning | QASC | hard | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | A | 9.5 | qwen3.8-max-preview | 840 | 2026-07-22T05:02:02.239791+00:00 |
ffe2a8601727b1c5 | reasoning | SciQ | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | B | 9.5 | qwen3.8-max-preview | 409 | 2026-07-22T05:41:48.281134+00:00 |
31692c200bc5e759 | math | MATH/algebra | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | Rewriting the sentence "the ratio of Denali's pay to Nate's pay would be the same if Denali started walking $4x$ more dogs and Nate stayed at $12$ dogs or if $x$ of Nate's dogs were reassigned to Denali" as an equation, we have \[\frac{16+4x}{12}=\frac{16+x}{12-x}.\]Clearing denominators, \begin{align*}
(16+4x)(12-x)&=... | 7.5 | qwen3.8-max-preview | 957 | 2026-07-21T22:10:30.863289+00:00 |
36222d8dd8e76cb2 | instruction | tulu-3 | medium | [
{
"role": "system",
"content": "You are a helpful, precise assistant. Follow instructions exactly.\n\nFormat your response as:\n<think>\n[Understand what is being asked. Identify constraints and requirements.\nPlan your response structure.]\n</think>\n\n[Your complete, well-structured response following all... | 7.5 | qwen3.8-max-preview | 312 | 2026-07-22T06:02:52.866681+00:00 | |
6559f1a44c6c649e | math | MetaMathQA | medium | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 20000 | 10 | qwen3.8-max-preview | 412 | 2026-07-21T13:38:28.311739+00:00 |
37452992589ac541 | math | MetaMathQA | medium | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 1680 | 9 | qwen3.8-max-preview | 957 | 2026-07-22T03:48:22.270530+00:00 |
d6a60d179372f7d7 | math | MetaMathQA | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 3 | 10 | qwen3.8-max-preview | 401 | 2026-07-22T10:10:44.204413+00:00 |
a69591c1ab2bee50 | instruction | tulu-3 | medium | [
{
"role": "system",
"content": "You are a helpful, precise assistant. Follow instructions exactly.\n\nFormat your response as:\n<think>\n[Understand what is being asked. Identify constraints and requirements.\nPlan your response structure.]\n</think>\n\n[Your complete, well-structured response following all... | 6 | qwen3.8-max-preview | 562 | 2026-07-22T04:40:29.168362+00:00 | |
6f6e4923bd618d37 | code | CodeAlpaca | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | <html>
<head>
<title>Test</title>
</head>
<body>
<h1>My Heading</h1>
<p>This is a test.
</body>
</html> | 7 | qwen3.8-max-preview | 629 | 2026-07-21T18:38:26.499760+00:00 |
95600e0bd241208d | math | MATH/geometry | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | Since each non-hexagonal face is a rectangle with base 6 inches and height 3 feet, each face has an area of $6$ inches $\times 3$ feet $= .5$ feet $\times 3$ feet $= 1.5$ square feet per face. Since there are 6 faces (6 edges to a hexagon), that makes for a total area of $\boxed{9}$ square feet. | 9 | qwen3.8-max-preview | 344 | 2026-07-22T00:58:44.777198+00:00 |
782751e81ec83365 | math | OrcaMath | easy | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | A cube has 12 edges, and since all edges of a cube are of equal length, if one edge is 15 cm long, then all edges are 15 cm long.
To find the sum of the lengths of all the edges, we multiply the length of one edge by the number of edges:
Sum of all edges = Edge length × Number of edges
Sum of all edges = 15 cm × 12
S... | 9 | qwen3.8-max-preview | 125 | 2026-07-21T22:36:56.844986+00:00 |
d57f292ce203232c | instruction | tulu-3 | medium | [
{
"role": "system",
"content": "You are a helpful, precise assistant. Follow instructions exactly.\n\nFormat your response as:\n<think>\n[Understand what is being asked. Identify constraints and requirements.\nPlan your response structure.]\n</think>\n\n[Your complete, well-structured response following all... | 6 | qwen3.8-max-preview | 1,270 | 2026-07-21T15:32:01.241228+00:00 | |
a40c4b650a41f188 | instruction | tulu-3 | medium | [
{
"role": "system",
"content": "You are a helpful, precise assistant. Follow instructions exactly.\n\nFormat your response as:\n<think>\n[Understand what is being asked. Identify constraints and requirements.\nPlan your response structure.]\n</think>\n\n[Your complete, well-structured response following all... | 6.5 | qwen3.8-max-preview | 2,071 | 2026-07-22T00:56:23.600331+00:00 | |
34f253e1ea75e99d | code | CodeAlpaca | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | def limit_char(string):
if len(string) > 6 :
return string[:6]
else:
return string | 9 | qwen3.8-max-preview | 450 | 2026-07-22T05:51:11.979532+00:00 |
60f58b861b6e2da4 | code | CodeAlpaca | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | #include <atomic>
std::atomic_int x = 0;
// This is the Thread Task
void increment() {
x.fetch_add(1);
} | 8.5 | qwen3.8-max-preview | 1,228 | 2026-07-22T09:53:06.593918+00:00 |
b5846adb2a561dd7 | reasoning | ARC-Challenge | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | C | 9.5 | qwen3.8-max-preview | 421 | 2026-07-21T18:47:24.838893+00:00 |
ddef5089dc30e55e | reasoning | ARC-Easy | easy | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | A | 9.5 | qwen3.8-max-preview | 415 | 2026-07-21T18:17:06.712503+00:00 |
02cda12854a8d995 | math | MetaMathQA | medium | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 240 | 10 | qwen3.8-max-preview | 582 | 2026-07-22T09:07:16.455435+00:00 |
b7ec34a977d2ec46 | math | OrcaMath | easy | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | Let's solve this step by step.
First, we find A:
A is 4 less than 9, so A = 9 - 4 = 5.
Next, we find B:
B is 5 more than A, so B = A + 5 = 5 + 5 = 10.
Now, we find C:
8 less than C is 1, so C - 8 = 1. To find C, we add 8 to both sides of the equation: C = 1 + 8 = 9.
Finally, we find B minus C:
B - C = 10 - 9 = 1.
... | 9 | qwen3.8-max-preview | 221 | 2026-07-21T12:11:43.001267+00:00 |
c3e868902d466a66 | code | Evol-Code | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | SELECT
SUBSTRING_INDEX(SUBSTRING_INDEX(department, '[', -1), ']', 1) AS department_name,
SUM(CASE WHEN gender = 1 THEN 1 ELSE 0 END) AS male_count,
SUM(CASE WHEN gender = 2 THEN 1 ELSE 0 END) AS female_count,
AVG(DATEDIFF(CURRENT_DATE(), birthdate)/365) AS avg_age
FROM
employees
WHERE
status ... | 8.5 | qwen3.8-max-preview | 1,727 | 2026-07-22T09:52:54.962592+00:00 |
f74100f73dd25e41 | math | NuminaMath-CoT | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 9 | qwen3.8-max-preview | 136 | 2026-07-22T03:48:54.344508+00:00 | |
1767cd8573087da0 | math | gsm8k | medium | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 490 | 10 | qwen3.8-max-preview | 202 | 2026-07-22T00:27:05.788607+00:00 |
7fc7ec2272600224 | math | OrcaMath | easy | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | A pentahedron has 5 faces. The prefix "penta-" means five, and "-hedron" refers to faces of a three-dimensional shape. Therefore, a pentahedron is a polyhedron with 5 faces. | 9 | qwen3.8-max-preview | 226 | 2026-07-22T00:59:46.674992+00:00 |
18f2b53f81d69e3d | instruction | tulu-3 | medium | [
{
"role": "system",
"content": "You are a helpful, precise assistant. Follow instructions exactly.\n\nFormat your response as:\n<think>\n[Understand what is being asked. Identify constraints and requirements.\nPlan your response structure.]\n</think>\n\n[Your complete, well-structured response following all... | 6 | qwen3.8-max-preview | 1,387 | 2026-07-22T01:31:44.803522+00:00 | |
2d0afd5559d48962 | reasoning | QASC | hard | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | A | 9.5 | qwen3.8-max-preview | 983 | 2026-07-22T03:03:31.709833+00:00 |
cfb1a05b91d3d5b9 | math | NuminaMath-CoT | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 7.5 | qwen3.8-max-preview | 3,581 | 2026-07-21T16:35:06.954748+00:00 | |
bff8d36bde736482 | reasoning | QASC | hard | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | H | 9.5 | qwen3.8-max-preview | 776 | 2026-07-22T00:07:42.624078+00:00 |
43bd2719b7640bbf | math | MATH/intermediate_algebra | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | Multiplying both sides by $(x + 2)(x - 2) = x^2 - 4,$ we get
\[6 - x = 2(x^2 - 4) + x(x - 2).\]This simplifies to $3x^2 - x - 14 = 0.$ This factors as $(x + 2)(3x - 7) = 0,$ so $x = -2$ or $x = \frac{7}{3}.$
Checking, we find that the given equation is not defined for $x = -2.$ Only $x = \boxed{\frac{7}{3}}$ is a so... | 7.5 | qwen3.8-max-preview | 1,231 | 2026-07-22T01:03:34.125767+00:00 |
d47dcfc290b73836 | reasoning | SciQ | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | A | 9.5 | qwen3.8-max-preview | 492 | 2026-07-21T21:24:26.650500+00:00 |
7c478bd4e6926269 | code | CodeAlpaca | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | 8 | 10 | qwen3.8-max-preview | 373 | 2026-07-21T23:20:58.225807+00:00 |
5d685dbae03ec75e | code | Evol-Code | medium | [
{
"role": "system",
"content": "You are an expert software engineer. Write complete, correct, runnable code.\n\nFormat your response EXACTLY as:\n<think>\n[Analyze the problem, consider edge cases, choose your approach,\nexplain your algorithm and data structure choices.]\n</think>\n\n```python\n[Complete, ... | Here is a code that meets the given requirements:
def merge_lists(list1, list2):
# Check if the lists are empty
if len(list1) == 0 or len(list2) == 0:
return list1 + list2
# Initialize the pointers for both lists
pointer1 = 0
pointer2 = 0
# Iterate through the first list
w... | 7.5 | qwen3.8-max-preview | 19,384 | 2026-07-21T03:21:53.689680+00:00 |
2ba35fd2aa5dec0f | math | MetaMathQA | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 20 | 10 | qwen3.8-max-preview | 519 | 2026-07-21T12:17:27.851111+00:00 |
9a6a5d45ec42dd95 | reasoning | SciQ | medium | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | C | 9.5 | qwen3.8-max-preview | 424 | 2026-07-22T04:12:29.934306+00:00 |
3d00dc41149a2c1b | reasoning | QASC | hard | [
{
"role": "system",
"content": "You are an expert logical reasoner. Think through the problem carefully.\n\nFormat your response EXACTLY as:\n<think>\n[Break down the problem into components.\nConsider multiple hypotheses if applicable.\nEliminate incorrect paths explicitly.\nBuild toward the conclusion ste... | H | 9.5 | qwen3.8-max-preview | 658 | 2026-07-21T12:09:43.134193+00:00 |
88dba50b2b8bf76f | math | MetaMathQA | hard | [
{
"role": "system",
"content": "You are an expert mathematician. Solve the given problem with complete rigor.\n\nFormat your response EXACTLY as:\n<think>\n[Your complete step-by-step reasoning. Show all intermediate calculations.\nIf you make an error and catch it, show the correction.\nEnd with a clear st... | 4 | 10 | qwen3.8-max-preview | 438 | 2026-07-22T01:37:26.029829+00:00 |
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