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values | source_idx int64 0 103k | difficulty stringclasses 26
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values | qwen_n_correct int64 0 2 | qwen_mean_acc float64 0 0.5 | qwen_mean_tokens int64 774 32.8k | qwen_n_length_capped int64 0 4 | answer_suspect bool 1
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class | glm_n_samples int64 4 4 | glm_n_answered int64 0 4 | glm_n_correct int64 0 4 | glm_n_rule_correct int64 0 4 | glm_n_judged_same int64 0 4 | glm_top_alt stringlengths 0 802 | glm_top_alt_count int64 0 3 | glm_verdict stringclasses 2
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[
{
"role": "user",
"content": "8. In the figure shown in Figure 3, on both sides of square $P$, there are $a$ and $b$ squares to the left and right, and $c$ and $d$ squares above and below, where $a$, $b$, $c$, and $d$ are positive integers, satisfying\n$$\n(a-b)(c-d)=0 \\text {. }\n$$\n\nThe shape formed by... | 13483236 | polaris53k | 46,444 | 1/8 | null | mixed1to3 | 2 | 0.5 | 15,712 | 0 | false | false | 4 | 4 | 3 | 3 | 0 | 15\,116\,400 | 1 | confirmed | true | 2 | previously_retained | ||
[
{
"role": "user",
"content": "Evaluate the integral \\( \\int\\limits_{0}^{\\infty} {\\frac{2}{3x^{4/3}} \\sqrt{\\frac{\\lambda}{2\\pi}} \\exp \\left( \\frac{-\\lambda (x^{2/3}-\\mu)^2}{2\\mu^2 x^{2/3}} \\right) dx} \\) for \\(\\mu>0, \\lambda>0\\).\n\nPlease reason step by step, and put your final answer ... | 1 | deepmath103k | 33,781 | 7.5 | Mathematics -> Calculus -> Integral Calculus -> Techniques of Integration -> Multi-variable | mixed1to3 | 2 | 0.5 | 12,381 | 0 | false | false | 4 | 4 | 3 | 3 | 0 | \mu | 1 | confirmed | true | 7 | previously_retained | ||
[
{
"role": "user",
"content": "There are 6 houses, numbered 1 to 6 from left to right, as seen from across the street. Each house is occupied by a different person. Each house has a unique attribute for each of the following characteristics:\n - Each person has a unique name: `Carol`, `Peter`, `Alice`, `Eric... | Kailyn | polaris53k | 41,999 | 0/8 | null | mixed1to3 | 2 | 0.5 | 20,806 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 9 | previously_retained | |||
[
{
"role": "user",
"content": "Determine the smallest integer $n$ for which the number of pairs $(x, y)$ satisfying $x \\ge y$, $\\operatorname{lcm}(x, y) = n!$, and $\\gcd(x, y) = 2023$ is greater than 2023. Note that $2023 = 7 \\times 17^2$. What is this value of $n$?\n\nPlease reason step by step, and put... | 41 | deepmath103k | 39,451 | 7.0 | Mathematics -> Number Theory -> Factorization | mixed1to3 | 2 | 0.5 | 11,756 | 0 | false | false | 4 | 4 | 1 | 1 | 0 | 37 | 2 | uncertain | false | 11 | previously_retained | ||
[
{
"role": "user",
"content": "A group of 6 students decided to make *study groups* and *service activity groups* according to the following principle:\n\nEach group must have exactly 3 members. For any pair of students, there are same number of study groups and service activity groups that both of the stude... | 8 | polaris53k | 50,084 | 0/8 | null | mixed1to3 | 1 | 0.25 | 15,928 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 15 | previously_retained | |||
[
{
"role": "user",
"content": "3. In a circle with radius $R$, determine the central angle corresponding to a circular segment with the following property: the chord of the segment is equal to the perimeter of the circle with the largest radius that is inscribed in it.\n\nPlease reason step by step, and put ... | 4 \arctan\left(\frac{2}{\pi}\right) | polaris53k | 37,678 | 1/8 | null | mixed1to3 | 2 | 0.5 | 10,393 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 18 | previously_retained | |||
[
{
"role": "user",
"content": "Find the integer solution to the equation \\(975a + 880b + 790c + 585d + 487e + 440f + 292g + 260h + 530i + 195j + 125k = 1002\\) that minimizes the sum \\(a + b + c + d + e + f + g + h + i + j + k\\), given the constraints:\n\n\\[0 \\leq a \\leq 27\\]\n\\[0 \\leq b \\leq 37\\]... | 3 | deepmath103k | 40,638 | 5.5 | Mathematics -> Other | zero | 0 | 0 | 17,549 | 0 | false | false | 4 | 4 | 4 | 2 | 2 | 0 | confirmed | true | 21 | previously_retained | |||
[
{
"role": "user",
"content": "There are 6 houses, numbered 1 to 6 from left to right, as seen from across the street. Each house is occupied by a different person. Each house has a unique attribute for each of the following characteristics:\n - Each person has a unique name: `Eric`, `Bob`, `Alice`, `Peter`,... | prince | polaris53k | 35,872 | 0/8 | null | mixed1to3 | 1 | 0.25 | 22,238 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 22 | previously_retained | |||
[
{
"role": "user",
"content": "Solve the following math problem step by step. The last line of your response should be of the form Answer: \\boxed{$Answer} where $Answer is the answer to the problem.\n\nA rectangular piece of paper is divided into polygonal areas in the following way: at each step, one of th... | 2007 | dapo17k | 5,338 | null | null | mixed1to3 | 1 | 0.25 | 17,477 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 23 | previously_retained | |||
[
{
"role": "user",
"content": "Solve the following math problem step by step. The last line of your response should be of the form Answer: \\boxed{$Answer} where $Answer is the answer to the problem.\n\n求最小的质数 $p$, 满足 $(p, N)=1$,其中, $N$ 为所有满足以下条件的 $\\left(a_{0}, a_{1}, \\cdots\\right.$, $a_{2012}$ )的个数:\n(1)... | 67 | dapo17k | 11,052 | null | null | mixed1to3 | 1 | 0.25 | 17,307 | 1 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 26 | previously_retained | |||
[
{
"role": "user",
"content": "There are 6 houses, numbered 1 to 6 from left to right, as seen from across the street. Each house is occupied by a different person. Each house has a unique attribute for each of the following characteristics:\n - Each person has a unique name: `Alice`, `Eric`, `Peter`, `Carol... | tesla model 3 | polaris53k | 42,062 | 0/8 | null | mixed1to3 | 2 | 0.5 | 24,368 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 29 | previously_retained | |||
[
{
"role": "user",
"content": "A2 From each of the eight vertices of a cube, a piece is sawn off so that instead of a vertex, a triangular face with three vertices appears. Each pair of the 24 vertices of the resulting body is connected by a line segment.\n\nHow many of these line segments lie, except for th... | 120 | polaris53k | 47,089 | 5/8 | null | mixed1to3 | 2 | 0.5 | 11,159 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 33 | previously_retained | |||
[
{
"role": "user",
"content": "Determine the dimension of the vector space $V_r$ over the complex numbers $\\mathbb{C}$, where $V_r$ consists of all holomorphic functions $f: \\mathbb{C} \\rightarrow \\mathbb{C}$ such that $|f(z)| < \\infty$ for all $z \\in \\mathbb{C}$. Provide your answer as a single numbe... | \infty | deepmath103k | 40,636 | 7.5 | Mathematics -> Calculus -> Differential Calculus -> Applications of Derivatives | zero | 0 | 0 | 2,322 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 35 | previously_retained | |||
[
{
"role": "user",
"content": "## Zadatak B-4.3.\n\nPrvi, peti i jedanaesti član rastućeg aritmetičkog niza istovremeno su tri uzastopna člana geometrijskog niza. Odredite sto dvanaesti član aritmetičkog niza, ako je njegov prvi član jednak 136 .\n\n\nPlease reason step by step, and put your final answer wit... | 2023 | polaris53k | 44,517 | 0/8 | null | zero | 0 | 0 | 3,397 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 37 | previously_retained | |||
[
{
"role": "user",
"content": "Find the value of \\(x\\) such that \\(\\int_{0}^{x}\\{t\\}dt = \\int_{0}^{\\{x\\}}tdt\\), where \\(x > 0\\), \\(x \\notin \\mathbb{Z}\\), and \\(\\{x\\}\\) is the fractional part of \\(x\\).\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | (0,1) | deepmath103k | 26,468 | 5.0 | Mathematics -> Calculus -> Integral Calculus -> Applications of Integrals | mixed1to3 | 2 | 0.5 | 7,813 | 0 | false | false | 4 | 4 | 4 | 1 | 3 | 0 | confirmed | false | 39 | previously_retained | |||
[
{
"role": "user",
"content": "Solve the following math problem step by step. The last line of your response should be of the form Answer: \\boxed{$Answer} where $Answer is the answer to the problem.\n\nFind the number of sequences of 10 letters where all the letters are either $A$ or $B$, the first letter i... | 86 | dapo17k | 8,269 | null | null | mixed1to3 | 2 | 0.5 | 10,573 | 0 | false | false | 4 | 4 | 2 | 2 | 0 | 102 | 1 | confirmed | true | 41 | previously_retained | ||
[
{
"role": "user",
"content": "Numbers 1 through 9 are written in the cells of a $3 \\times 3$ table. All possible sums of the numbers in adjacent (by side) cells are then listed in a notebook. What is the minimum number of different sums that could be listed in the notebook?\n\nPlease reason step by step, a... | 4 | polaris53k | 33,675 | 0/8 | null | mixed1to3 | 2 | 0.5 | 23,572 | 0 | false | false | 4 | 3 | 3 | 3 | 0 | 0 | confirmed | true | 42 | previously_retained | |||
[
{
"role": "user",
"content": "There are 6 houses, numbered 1 to 6 from left to right, as seen from across the street. Each house is occupied by a different person. Each house has a unique attribute for each of the following characteristics:\n - Each person has a unique name: `Peter`, `Eric`, `Arnold`, `Bob`... | 4 | polaris53k | 53,148 | 0/8 | null | mixed1to3 | 2 | 0.5 | 17,069 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 44 | previously_retained | |||
[
{
"role": "user",
"content": "Given the sequence \\( 0 \\leqslant a_{k} \\leqslant 1 \\) for \\( k = 1, 2, \\cdots, 2002 \\), with \\( a_{2003} = a_{1} \\) and \\( a_{2004} = a_{2} \\), determine the maximum value of the expression \\( \\sum_{k=1}^{20002} \\left( a_{k} - a_{k+1} a_{k+2} \\right) \\).\n\nPle... | 1001 | deepmath103k | 92,546 | 7.0 | Mathematics -> Algebra -> Intermediate Algebra -> Other | zero | 0 | 0 | 17,745 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 49 | previously_retained | |||
[
{
"role": "user",
"content": "One, (20 points) A research study group from Class 1, Grade 3 of Yuhong Middle School conducted a survey on students' lunch time at the school canteen. It was found that within a unit of time, the number of people buying lunch at each window and the number of people choosing to... | 5 | polaris53k | 44,431 | 4/8 | null | zero | 0 | 0 | 18,571 | 0 | false | false | 4 | 3 | 3 | 3 | 0 | 0 | confirmed | true | 51 | previously_retained | |||
[
{
"role": "user",
"content": "There are 5 houses, numbered 1 to 5 from left to right, as seen from across the street. Each house is occupied by a different person. Each house has a unique attribute for each of the following characteristics:\n - Each person has a unique name: `Bob`, `Peter`, `Eric`, `Arnold`... | tea | polaris53k | 42,047 | 0/8 | null | mixed1to3 | 2 | 0.5 | 19,404 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 54 | previously_retained | |||
[
{
"role": "user",
"content": "If every one-dimensional subspace of a Banach space $X$ is one-complemented, determine whether every two-dimensional subspace of $X$ is isometrically isomorphic to a Hilbert space. Answer true or false.\n\nPlease reason step by step, and put your final answer within \\boxed{}."... | False | deepmath103k | 63,792 | 8.5 | Mathematics -> Other | mixed1to3 | 2 | 0.5 | 7,204 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 56 | previously_retained | |||
[
{
"role": "user",
"content": "Solve the following math problem step by step. The last line of your response should be of the form Answer: \\boxed{$Answer} where $Answer is the answer to the problem.\n\nAmong all pairs of real numbers $(x, y)$ such that $\\sin \\sin x = \\sin \\sin y$ with $-10 \\pi \\le x, ... | 21 | dapo17k | 6,916 | null | null | mixed1to3 | 2 | 0.5 | 16,901 | 0 | false | false | 4 | 4 | 2 | 2 | 0 | 22 | 1 | confirmed | true | 59 | previously_retained | ||
[
{
"role": "user",
"content": "Consider two numerical sequences $X_n$ and $Y_n$. The sequence $X_n$ consists of random integers from one to six for each $n$. Define $Y_1 = X_1$, and for $n \\geq 2$, $$Y_n = X_n + \\frac{1}{Y_{n-1}}.$$ Determine the probability $P$ that $$\\frac{1+\\sqrt{3}}{2} \\leq Y_n \\le... | \dfrac{1}{5} | deepmath103k | 74,258 | 6.5 | Mathematics -> Applied Mathematics -> Statistics -> Probability -> Other | zero | 0 | 0 | 16,033 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 64 | previously_retained | |||
[
{
"role": "user",
"content": "Given the line $l$: $x-2y+2=0$ passes through the left focus $F\\_1$ and one vertex $B$ of an ellipse. Determine the eccentricity of the ellipse.\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | \frac{2\sqrt{5}}{5} | polaris53k | 28,589 | 4/8 | null | mixed1to3 | 2 | 0.5 | 18,659 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 66 | previously_retained | |||
[
{
"role": "user",
"content": "Solve the following math problem step by step. The last line of your response should be of the form Answer: \\boxed{$Answer} where $Answer is the answer to the problem.\n\nLet $x$ and $y$ be real numbers such that\n\\[\\frac{\\sin x}{\\cos y} + \\frac{\\sin y}{\\cos x} = 1 \\qu... | 137 | dapo17k | 6,719 | null | null | mixed1to3 | 2 | 0.5 | 11,252 | 0 | false | false | 4 | 4 | 3 | 3 | 0 | 5 | 1 | confirmed | true | 67 | previously_retained | ||
[
{
"role": "user",
"content": "Max repeatedly throws a fair coin in a hurricane. For each throw, there is a $4\\%$ chance that the coin gets blown away. He records the number of heads $H$ and the number of tails $T$ before the coin is lost. (If the coin is blown away on a toss, no result is recorded fo... | \frac{24}{7} | polaris53k | 2,521 | 2/8 | null | mixed1to3 | 2 | 0.5 | 19,842 | 1 | false | false | 4 | 4 | 2 | 2 | 0 | \dfrac{25}{7} | 2 | confirmed | true | 69 | previously_retained | ||
[
{
"role": "user",
"content": "A sequence of \\( n \\) positive integers is considered full if for each \\( k > 1 \\), \\( k \\) occurs only if \\( k-1 \\) occurs before the last occurrence of \\( k \\). How many full sequences are there for each \\( n \\)?\n\nPlease reason step by step, and put your final a... | n! | polaris53k | 13,942 | 0/8 | null | mixed1to3 | 2 | 0.5 | 24,606 | 1 | false | false | 4 | 3 | 3 | 3 | 0 | 0 | confirmed | true | 72 | previously_retained | |||
[
{
"role": "user",
"content": "Are all compact subsets of \\( \\mathbb{R}^{\\mathbb{R}} \\) separable? Consider \\( \\mathbb{R} \\) with its usual topology and \\( \\mathbb{R}^{\\mathbb{R}} \\) with the topology of pointwise convergence. Provide a justification for your answer.\n\nPlease reason step by step,... | No | deepmath103k | 20,530 | 9.0 | Mathematics -> Calculus -> Differential Calculus -> Other | mixed1to3 | 2 | 0.5 | 10,620 | 0 | false | false | 4 | 4 | 4 | 0 | 4 | 0 | confirmed | false | 74 | previously_retained | |||
[
{
"role": "user",
"content": "In a tournament where each pair of teams played against each other twice, there were 4 teams participating. A win awarded two points, a draw one point, and a loss zero points. The team that finished in last place earned 5 points. How many points did the team that finished in fi... | 7 | polaris53k | 2,296 | 1/8 | null | mixed1to3 | 1 | 0.25 | 17,653 | 1 | false | false | 4 | 4 | 3 | 3 | 0 | 9 | 1 | confirmed | true | 75 | previously_retained | ||
[
{
"role": "user",
"content": "There are 6 houses, numbered 1 to 6 from left to right, as seen from across the street. Each house is occupied by a different person. Each house has a unique attribute for each of the following characteristics:\n - Each person has a unique name: `Arnold`, `Bob`, `Peter`, `Alice... | stir fry | polaris53k | 42,604 | 0/8 | null | mixed1to3 | 2 | 0.5 | 22,400 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 77 | previously_retained | |||
[
{
"role": "user",
"content": "\nAn integer sequence \\(\\left\\{a_{i, j}\\right\\}(i, j \\in \\mathbf{N})\\), where,\n\\[ \n\\begin{array}{l} \na_{1, n} = n^{n} \\quad (n \\in \\mathbf{Z}_{+}), \\\\ \na_{i, j} = a_{i-1, j} + a_{i-1, j+1} \\quad (i, j \\geq 1).\n\\end{array}\n\\]\n\nWhat is the unit digit of... | 4 | polaris53k | 30,960 | 0/8 | null | mixed1to3 | 2 | 0.5 | 26,526 | 1 | false | false | 4 | 4 | 2 | 2 | 0 | 8 | 2 | confirmed | true | 80 | previously_retained | ||
[
{
"role": "user",
"content": "A square-based pyramid has all edges 2 units long. We attach a pyramid to one of the side faces of the pyramid, where the side edges of the new pyramid are of equal length. The total length of the edges of the resulting solid is 18 units. What is the volume of the solid?\n\nPle... | 2\sqrt{2} | polaris53k | 38,712 | 0/8 | null | mixed1to3 | 1 | 0.25 | 18,497 | 0 | false | false | 4 | 4 | 2 | 2 | 0 | \dfrac{2(6\sqrt{2}+\sqrt{39})}{9} | 2 | confirmed | true | 81 | previously_retained | ||
[
{
"role": "user",
"content": "In a cylinder with a height of 10 and a base radius of 1, two spheres are attached to the upper and lower bases. The sphere on the lower base is tangent to the bottom and the side of the cylinder, and the sphere on the upper base is tangent to the top and the side of the cylind... | 4\pi | deepmath103k | 90,479 | 6.0 | Mathematics -> Geometry -> Solid Geometry -> 3D Shapes | mixed1to3 | 1 | 0.25 | 18,485 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 82 | previously_retained | |||
[
{
"role": "user",
"content": "Solve the following math problem step by step. The last line of your response should be of the form Answer: \\boxed{$Answer} where $Answer is the answer to the problem.\n\nFor any positive integer $n$, define a function $f$ by \\[f(n)=2n+1-2^{\\lfloor\\log_2n\\rfloor+1}.\\] Let... | 8008 | dapo17k | 5,157 | null | null | zero | 0 | 0 | 29,177 | 1 | false | false | 4 | 4 | 3 | 3 | 0 | 1 | 1 | confirmed | true | 84 | previously_retained | ||
[
{
"role": "user",
"content": "Determine whether the following statement is true or false: If matrix $A$ is nonsingular and matrix $B$ is singular, with $B^-$ being a generalized inverse of $B$, then $(AB)^- = B^- A^{-1}$.\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | True | deepmath103k | 82,345 | 7.0 | Mathematics -> Algebra -> Linear Algebra -> Matrices | mixed1to3 | 2 | 0.5 | 13,405 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 85 | previously_retained | |||
[
{
"role": "user",
"content": "Determine whether the statement \"P(A) = P(B) if and only if A and B are logically equivalent\" holds true for any logical statements A and B.\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | False | deepmath103k | 77,747 | 4.5 | Mathematics -> Discrete Mathematics -> Logic | mixed1to3 | 2 | 0.5 | 4,736 | 0 | false | false | 4 | 4 | 4 | 0 | 4 | 0 | confirmed | false | 86 | previously_retained | |||
[
{
"role": "user",
"content": "A stationery store sells a certain type of pen bag for $18$ yuan each. Xiao Hua went to buy this pen bag. When checking out, the clerk said, \"If you buy one more, you can get a 10% discount, which is $36 cheaper than now.\" Xiao Hua said, \"Then I'll buy one more, thank you.\"... | 486 | polaris53k | 31,385 | 2/8 | null | mixed1to3 | 1 | 0.25 | 12,171 | 0 | false | false | 4 | 4 | 2 | 2 | 0 | 32.4 | 1 | confirmed | true | 87 | previously_retained | ||
[
{
"role": "user",
"content": "Square \\(ABCD\\) has a side length of 4. Point \\(E\\) is the midpoint of \\(AB\\), and \\(F\\) is a variable point on side \\(BC\\). Triangles \\(\\triangle ADE\\) and \\(\\triangle DCF\\) are folded along \\(DE\\) and \\(DF\\) respectively, so that points \\(A\\) and \\(C\\)... | \frac{4\sqrt{5}}{5} | polaris53k | 12,184 | 0/8 | null | mixed1to3 | 2 | 0.5 | 17,200 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 88 | previously_retained | |||
[
{
"role": "user",
"content": "Calculate the flux of the vector field \\(\\mathbf{a} = y^2 \\mathbf{j} + z \\mathbf{k}\\) through the surface defined by \\(z = x^2 + y^2\\), bounded by the plane \\(z=2\\). Assume the normal vector is outward with respect to the region enclosed by the paraboloid.\n\nPlease re... | -2\pi | deepmath103k | 87,130 | 5.5 | Mathematics -> Calculus -> Integral Calculus -> Applications of Integrals | mixed1to3 | 2 | 0.5 | 16,037 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 91 | previously_retained | |||
[
{
"role": "user",
"content": "Given a strictly increasing sequence of natural numbers $(p_n)$ and a positive sequence $(\\epsilon_n)$ decreasing to $0$, let $(x_n)$ be a sequence in the unit sphere of $l_2$ with the property that for any $j \\in \\mathbb{N}$ and for any $1 \\leq k \\leq j$, \\( \\sum_{i>p_k... | Yes | deepmath103k | 16,491 | 8.5 | Mathematics -> Calculus -> Differential Calculus -> Applications of Derivatives | mixed1to3 | 2 | 0.5 | 14,176 | 0 | false | false | 4 | 4 | 4 | 0 | 4 | 0 | confirmed | false | 92 | previously_retained | |||
[
{
"role": "user",
"content": "Solve the following math problem step by step. The last line of your response should be of the form Answer: \\boxed{$Answer} where $Answer is the answer to the problem.\n\nOn $2020 \\times 2021$ squares, cover the whole area with several L-Trominos and S-Tetrominos (Z-Tetromino... | 2020 | dapo17k | 3,195 | null | null | zero | 0 | 0 | 15,034 | 0 | false | false | 4 | 3 | 3 | 3 | 0 | 0 | confirmed | true | 98 | previously_retained | |||
[
{
"role": "user",
"content": "Given column vectors $v_1, v_2, v_3 \\in \\mathbb{R}^2$, if for all distinct $i, j \\in \\{1, 2, 3\\}$, the minimum eigenvalue of the matrix $v_iv_i^T + v_jv_j^T$ satisfies $\\lambda_{\\min}(v_iv_i^T+v_jv_j^T) \\leq 1$, determine an upper bound for $\\lambda_{\\min}(v_1v_1^T+v_... | 3 | deepmath103k | 55,648 | 6.5 | Mathematics -> Algebra -> Linear Algebra -> Matrices | zero | 0 | 0 | 16,019 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 99 | previously_retained | |||
[
{
"role": "user",
"content": "Arrange the 5 numbers \\(2, 0, 1, 9, 2019\\) in any order to form an 8-digit number (the first digit cannot be 0). Determine the number of different 8-digit numbers that can be produced.\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | 95 | polaris53k | 20,020 | 0/8 | null | zero | 0 | 0 | 8,352 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 100 | previously_retained | |||
[
{
"role": "user",
"content": "Solve the following math problem step by step. The last line of your response should be of the form Answer: \\boxed{$Answer} where $Answer is the answer to the problem.\n\nThe twenty-\ffirst century began on January $1$, $2001$ and runs through December $31$, $2100$. Note that ... | 44 | dapo17k | 8,035 | null | null | mixed1to3 | 2 | 0.5 | 19,186 | 1 | false | false | 4 | 4 | 0 | 0 | 0 | 43 | 2 | uncertain | false | 105 | previously_retained | ||
[
{
"role": "user",
"content": "Is it possible to have a ring $A$, with identity, such that $A^m \\cong A^n$ as left $A$-modules with $m \\neq n$? Provide a proof or counterexample.\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | Yes | deepmath103k | 24,367 | 8.0 | Mathematics -> Algebra -> Abstract Algebra -> Ring Theory | mixed1to3 | 2 | 0.5 | 8,118 | 0 | false | false | 4 | 4 | 4 | 0 | 4 | 0 | confirmed | false | 106 | previously_retained | |||
[
{
"role": "user",
"content": "There are 5 houses, numbered 1 to 5 from left to right, as seen from across the street. Each house is occupied by a different person. Each house has a unique attribute for each of the following characteristics:\n - Each person has a unique name: `Eric`, `Alice`, `Peter`, `Bob`,... | hamster | polaris53k | 53,219 | 0/8 | null | mixed1to3 | 2 | 0.5 | 14,954 | 0 | false | false | 4 | 4 | 3 | 3 | 0 | \text{cannot be determined} | 1 | confirmed | true | 107 | previously_retained | ||
[
{
"role": "user",
"content": "A fair die is tossed repeatedly until the last six outcomes form the pattern 131131. What is the expected number of rolls needed to achieve this pattern?\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | 46878 | deepmath103k | 28,165 | 6.0 | Mathematics -> Applied Mathematics -> Statistics -> Probability -> Counting Methods -> Combinations | mixed1to3 | 2 | 0.5 | 18,126 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 110 | previously_retained | |||
[
{
"role": "user",
"content": "In a regular quadrilateral pyramid $P-ABCD$, if $\\angle APC = 60^{\\circ}$, find the cosine of the dihedral angle between planes $A-PB-C$.\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | $-\frac{1}{7}$ | polaris53k | 27,104 | 0/8 | null | mixed1to3 | 2 | 0.5 | 10,985 | 0 | false | false | 4 | 4 | 3 | 3 | 0 | \dfrac{1}{7} | 1 | confirmed | true | 112 | previously_retained | ||
[
{
"role": "user",
"content": "Ostrovsky $M$.\n\nA number from 1 to 144 is guessed. You are allowed to select one subset of the set of numbers from 1 to 144 and ask whether the guessed number belongs to it. You have to pay 2 rubles for a \"yes\" answer and 1 ruble for a \"no\" answer. What is the minimum amo... | 11 | polaris53k | 35,754 | 3/8 | null | mixed1to3 | 2 | 0.5 | 15,098 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 113 | previously_retained | |||
[
{
"role": "user",
"content": "What is the largest number of starting clues in a Sudoku puzzle that does not guarantee a unique solution?\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | 77 | deepmath103k | 50,488 | 7.5 | Mathematics -> Discrete Mathematics -> Combinatorics | mixed1to3 | 2 | 0.5 | 5,464 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 115 | previously_retained | |||
[
{
"role": "user",
"content": "For an integer \\( n \\geq 3 \\), we say that \\( A = \\left( a_1, a_2, \\ldots, a_n \\right) \\) is an \\( n \\)-list if every \\( a_k \\) is an integer in the range \\( 1 \\leq a_k \\leq n \\). For each \\( k = 1, \\ldots, n-1 \\), let \\( M_k \\) be the minimal possible non-... | 4(n-1) | polaris53k | 4,203 | 1/8 | null | mixed1to3 | 2 | 0.5 | 21,116 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 121 | previously_retained | |||
[
{
"role": "user",
"content": "16. Let $O$ be the centre of the circumcircle of $\\triangle A B C, P$ and $Q$ the midpoints of $A O$ and $B C$, respectively. Suppose $\\angle C B A=4 \\angle O P Q$ and $\\angle A C B=6 \\angle O P Q$. Find the size of $\\angle O P Q$ in degrees.\n\nPlease reason step by step... | 12 | polaris53k | 44,069 | 2/8 | null | mixed1to3 | 1 | 0.25 | 26,212 | 2 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 122 | previously_retained | |||
[
{
"role": "user",
"content": "Find the sum of the smallest and largest possible values for \\( x \\) which satisfy the following equation.\n\\[ 9^{x+1} + 2187 = 3^{6x - x^2} \\]\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | 5 | polaris53k | 7,957 | 1/8 | null | mixed1to3 | 2 | 0.5 | 25,720 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 123 | previously_retained | |||
[
{
"role": "user",
"content": "Determine whether the following inequality holds for all continuous functions $f$ and $g$ on $[0,1]$:\n\\[ \\sup_{x \\in [0,1]} \\left\\{ \\int_{0}^{x} |f(t) - g(t)| \\, dt \\right\\} \\leq \\sup_{x \\in [0,1]} \\left\\{ |f(x) - g(x)| \\right\\}. \\]\n\nPlease reason step by st... | Yes | deepmath103k | 41,709 | 7.5 | Mathematics -> Calculus -> Integral Calculus -> Applications of Integrals | mixed1to3 | 2 | 0.5 | 7,118 | 0 | false | false | 4 | 4 | 4 | 0 | 4 | 0 | confirmed | false | 124 | previously_retained | |||
[
{
"role": "user",
"content": "Determine the values of \\( \\beta \\) for which the series \\( \\sum_{n=1}^{\\infty} \\left( \\sqrt{1+\\frac{(-1)^n}{n^\\beta}} - 1 \\right) \\) converges.\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | \beta > \dfrac{1}{2} | deepmath103k | 12,659 | 6.5 | Mathematics -> Algebra -> Intermediate Algebra -> Exponential Functions | mixed1to3 | 2 | 0.5 | 11,390 | 0 | false | false | 4 | 4 | 4 | 1 | 3 | 0 | confirmed | false | 125 | previously_retained | |||
[
{
"role": "user",
"content": "Let \\(X_t\\) be a Brownian motion and \\(a < 0\\). Define the stopping time \\(T_x = \\inf\\{t \\geq 0: X_t + at \\geq x\\}\\). If \\(Y = \\sup_{t \\geq 0}(X_t + at) = x\\), determine whether \\(T_x < \\infty\\).\n\nPlease reason step by step, and put your final answer within ... | T_x < \infty | deepmath103k | 43,451 | 8.0 | Mathematics -> Applied Mathematics -> Statistics -> Probability -> Other | zero | 0 | 0 | 9,412 | 0 | false | false | 4 | 4 | 4 | 3 | 1 | 0 | confirmed | true | 126 | previously_retained | |||
[
{
"role": "user",
"content": "Consider the sequence of integers \\( a_{1}, a_{2}, a_{3}, \\ldots \\) defined by \\( a_{1} = 1 \\) and for \\( n \\geq 1 \\), \\( a_{n+1} \\) is the smallest integer greater than \\( a_{n} \\) such that \\( a_{i} + a_{j} \\neq 3a_{k} \\) for any \\( i, j, \\) and \\( k \\) in ... | 4494 | deepmath103k | 85,038 | 6.5 | Mathematics -> Number Theory -> Other | mixed1to3 | 1 | 0.25 | 28,807 | 2 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 129 | previously_retained | |||
[
{
"role": "user",
"content": "Find the smallest prime number \\( p \\) such that 7 is the least quadratic nonresidue modulo \\( p \\).\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | 71 | deepmath103k | 7,825 | 5.5 | Mathematics -> Number Theory -> Prime Numbers | mixed1to3 | 1 | 0.25 | 16,223 | 0 | false | false | 4 | 4 | 3 | 3 | 0 | 241 | 1 | confirmed | true | 130 | previously_retained | ||
[
{
"role": "user",
"content": "Let $(x_1,...,x_n)$ and $(y_1,...,y_n)$ be two different tuples of positive real numbers such that $x_1 \\times \\dots \\times x_n = y_1 \\times \\dots \\times y_n = c$. Determine if the following inequality is true:\n\\[ \\left(\\frac{x_1+y_1}{2}\\right)\\times\\cdots\\times \... | True | deepmath103k | 24,767 | 6.0 | Mathematics -> Other | mixed1to3 | 1 | 0.25 | 6,019 | 0 | false | false | 4 | 4 | 4 | 0 | 4 | 0 | confirmed | false | 132 | previously_retained | |||
[
{
"role": "user",
"content": "## - Problem 3\n\nLet $A B C D$ be a convex quadrilateral. Let $P$ be the intersection of $A C$ and $B D$. The angle $\\angle A P D=60^{\\circ}$. Let $E, F, G$ and $H$ be the midpoints of the sides $A B, B C, C D$ and $D A$ respectively. Find the largest positive real number $k... | \sqrt{3} + 1 | polaris53k | 38,527 | 0/8 | null | zero | 0 | 0 | 18,953 | 0 | false | false | 4 | 4 | 4 | 3 | 1 | 0 | confirmed | true | 133 | previously_retained | |||
[
{
"role": "user",
"content": "\nA finite sequence of numbers \\( x_{1}, x_{2}, \\ldots, x_{N} \\) possesses the following property:\n\n\\[ x_{n+2} = x_{n} - \\frac{1}{x_{n+1}} \\text{ for all } 1 \\leq n \\leq N-2. \\]\n\nFind the maximum possible number of terms in this sequence if \\( x_{1} = 20 \\) and \... | 322 | polaris53k | 4,251 | 2/8 | null | mixed1to3 | 2 | 0.5 | 22,958 | 2 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 135 | previously_retained | |||
[
{
"role": "user",
"content": "27 identical dice were glued together to form a $3 \\times 3 \\times 3$ cube in such a way that any two adjacent small dice have the same number of dots on the touching faces. How many dots are there on the surface of the large cube?\n\nPlease reason step by step, and put your ... | 189 | polaris53k | 21,848 | 2/8 | null | mixed1to3 | 2 | 0.5 | 20,774 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 136 | previously_retained | |||
[
{
"role": "user",
"content": "Find the number of subgroups in the dihedral group $D_{16}$ that contain the stabilizer of a vertex in the action of $D_{16}$ on the vertices of an octagon.\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | 4 | deepmath103k | 78,286 | 6.0 | Mathematics -> Algebra -> Abstract Algebra -> Group Theory | zero | 0 | 0 | 17,782 | 0 | false | false | 4 | 4 | 3 | 3 | 0 | 5 | 1 | confirmed | true | 137 | previously_retained | ||
[
{
"role": "user",
"content": "Consider a hemispherical vase closed with a flat lid. Inside the vase, there are four identical oranges touching the vase, and one grapefruit touching all four oranges. Determine if it is true that all four points of contact of the grapefruit with the oranges necessarily lie in... | True | deepmath103k | 88,918 | 7.0 | Mathematics -> Geometry -> Solid Geometry -> 3D Shapes | mixed1to3 | 1 | 0.25 | 7,950 | 0 | false | false | 4 | 4 | 4 | 0 | 4 | 0 | confirmed | false | 141 | previously_retained | |||
[
{
"role": "user",
"content": "Let \\(\\mathcal{P}_{1}, \\mathcal{P}_{2}, \\mathcal{P}_{3}\\) be pairwise distinct parabolas in the plane. Find the maximum possible number of intersections between two or more of the \\(\\mathcal{P}_{i}\\). In other words, find the maximum number of points that can lie on two... | 12 | polaris53k | 14,691 | 4/8 | null | mixed1to3 | 2 | 0.5 | 14,266 | 0 | false | false | 4 | 2 | 2 | 2 | 0 | 0 | confirmed | true | 142 | previously_retained | |||
[
{
"role": "user",
"content": "In how many different ways can three knights be placed on a chessboard so that the number of squares attacked would be maximal?\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | 64 | polaris53k | 25,395 | 0/8 | null | zero | 0 | 0 | 22,946 | 0 | false | false | 4 | 2 | 2 | 2 | 0 | 0 | confirmed | true | 143 | previously_retained | |||
[
{
"role": "user",
"content": "Let \\( N \\) be the number of triples of positive integers \\( (a, b, c) \\) satisfying\n\\[ a \\leq b \\leq c, \\quad \\operatorname{gcd}(a, b, c)=1, \\quad a b c=6^{2020} . \\]\n\nCompute the remainder when \\( N \\) is divided by 1000.\n\nPlease reason step by step, and put... | 602 | polaris53k | 23,968 | 0/8 | null | mixed1to3 | 1 | 0.25 | 27,730 | 0 | false | false | 4 | 4 | 3 | 3 | 0 | 2 | 1 | confirmed | true | 144 | previously_retained | ||
[
{
"role": "user",
"content": "Solve the equation \\(x = 100e^{-x/100}\\) for \\(x\\).\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | 56.714 | deepmath103k | 67,430 | 5.0 | Mathematics -> Algebra -> Intermediate Algebra -> Exponential Functions | mixed1to3 | 2 | 0.5 | 9,402 | 0 | false | false | 4 | 4 | 4 | 0 | 4 | 0 | confirmed | false | 150 | previously_retained | |||
[
{
"role": "user",
"content": "Provide an example of an invertible linear transformation $T: \\mathbb{R}^n \\rightarrow \\mathbb{R}^n$ such that there is no linear transformation $S: \\mathbb{R}^n \\rightarrow \\mathbb{R}^n$ with $e^S = T$. What is the transformation $T$?\n\nPlease reason step by step, and p... | \begin{pmatrix} -1 & 0 \\ 0 & 1 \end{pmatrix} | deepmath103k | 37,892 | 8.0 | Mathematics -> Algebra -> Linear Algebra -> Linear Transformations | mixed1to3 | 1 | 0.25 | 5,018 | 0 | false | false | 4 | 4 | 1 | 0 | 1 | T = -I: \mathbb{R}^3 \to \mathbb{R}^3, \qquad T(v) = -v | 1 | uncertain | false | 154 | previously_retained | ||
[
{
"role": "user",
"content": "Find the value of $x$ such that it is the mean, median, and mode of the $9$ data values $-10, -5, x, x, 0, 15, 20, 25, 30$.\nA) $\\frac{70}{7}$\nB) $\\frac{75}{7}$\nC) $\\frac{80}{7}$\nD) $10$\nE) $15$\n\nPlease reason step by step, and put your final answer within \\boxed{}."
... | \frac{75}{7} | polaris53k | 31,074 | 0/8 | null | zero | 0 | 0 | 7,356 | 0 | false | false | 4 | 4 | 4 | 3 | 1 | 0 | confirmed | true | 155 | previously_retained | |||
[
{
"role": "user",
"content": "444. Eight hockey teams play against each other in a round-robin tournament to determine the final four. What is the minimum number of points that guarantees a team's advancement to the final four?\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
... | 11 | polaris53k | 35,407 | 1/8 | null | mixed1to3 | 1 | 0.25 | 19,490 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 158 | previously_retained | |||
[
{
"role": "user",
"content": "In a plane, 36 points are marked, with no three points being collinear. Some pairs of these points are connected by segments such that no more than 3 segments originate from any point. Determine the maximum number of distinct closed 4-segment broken lines that can be formed, wh... | 54 | deepmath103k | 92,678 | 6.0 | Mathematics -> Discrete Mathematics -> Combinatorics | mixed1to3 | 2 | 0.5 | 23,260 | 0 | false | false | 4 | 3 | 3 | 3 | 0 | 0 | confirmed | true | 160 | previously_retained | |||
[
{
"role": "user",
"content": "Let \\(p\\) be a prime number and \\(\\mathbb{F}_{p}\\) be the field of residues modulo \\(p\\). Let \\(W\\) be the smallest set of polynomials with coefficients in \\(\\mathbb{F}_{p}\\) such that the polynomials \\(x+1\\) and \\(x^{p-2}+x^{p-3}+\\cdots+x^{2}+2x+1\\) are in \\(... | p! | polaris53k | 9,153 | 1/8 | null | mixed1to3 | 1 | 0.25 | 22,208 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 162 | previously_retained | |||
[
{
"role": "user",
"content": "2. The chord $AB$ divides a circle with radius $r$ into two arcs in the ratio $1:2$. In the larger segment, a square is inscribed such that one of its sides lies on this chord. Express the length of the side of the square in terms of the radius $r$.\n\nPlease reason step by ste... | \dfrac{(2 + \sqrt{19})r}{5} | polaris53k | 44,729 | 1/8 | null | mixed1to3 | 2 | 0.5 | 10,167 | 0 | false | false | 4 | 4 | 2 | 2 | 0 | s = \dfrac{(\sqrt{19}-2)\,r}{5} | 1 | confirmed | true | 163 | previously_retained | ||
[
{
"role": "user",
"content": "Let $p$ be a prime number. What is the condition for the existence of an integer $k$ such that $k^{2} \\equiv -1 \\pmod{p}$?\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | p = 2 \text{ or } p \equiv 1 \pmod{4} | polaris53k | 49,470 | 4/8 | null | mixed1to3 | 2 | 0.5 | 8,868 | 0 | false | false | 4 | 4 | 4 | 3 | 1 | 0 | confirmed | true | 164 | previously_retained | |||
[
{
"role": "user",
"content": "[ Transfer of side, diagonal, etc.] The Law of Sines\n\nIn trapezoid $ABCD (AB \\| CD)$, $AB + CD = b$, diagonals $AC$ and $BD$ are related by $5AC = 3BD$. Find the area of the trapezoid if $\\angle BAC = 2 \\angle DBA$.\n\nPlease reason step by step, and put your final answer ... | \dfrac{5\sqrt{11}}{64} b^2 | polaris53k | 46,187 | 3/8 | null | mixed1to3 | 2 | 0.5 | 23,254 | 2 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 171 | previously_retained | |||
[
{
"role": "user",
"content": "Consider a solution \\(\\phi_t(x)\\) of the differential equation \\(x' = f(x)\\), where \\(x \\in \\mathbb{R}^n\\), \\(f: \\mathbb{R}^n \\to \\mathbb{R}^n\\), and \\(f\\) is continuously differentiable (\\(f \\in C^1\\)). If the solution converges to a fixed point \\(x_0\\) as... | Yes | deepmath103k | 38,208 | 6.5 | Mathematics -> Differential Equations -> Ordinary Differential Equations (ODEs) | mixed1to3 | 1 | 0.25 | 4,170 | 0 | false | false | 4 | 4 | 4 | 0 | 4 | 0 | confirmed | false | 173 | previously_retained | |||
[
{
"role": "user",
"content": "Let $\\Gamma$ be the circumcircle of a triangle $ABC$ and let $E$ and $F$ be the intersections of the bisectors of $\\angle ABC$ and $\\angle ACB$ with $\\Gamma$. If $EF$ is tangent to the incircle $\\gamma$ of $\\triangle ABC$, then find the value of $\\angle BAC$.\n\nPlease r... | 60^\circ | polaris53k | 52,905 | 4/8 | null | mixed1to3 | 1 | 0.25 | 24,580 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 174 | previously_retained | |||
[
{
"role": "user",
"content": "There are 5 houses, numbered 1 to 5 from left to right, as seen from across the street. Each house is occupied by a different person. Each house has a unique attribute for each of the following characteristics:\n - Each person has a unique name: `Bob`, `Arnold`, `Alice`, `Eric`... | yellow | polaris53k | 42,344 | 0/8 | null | mixed1to3 | 1 | 0.25 | 17,919 | 0 | false | false | 4 | 3 | 3 | 3 | 0 | 0 | confirmed | true | 176 | previously_retained | |||
[
{
"role": "user",
"content": "XI OM - I - Task 3\n\nEach side of a triangle with a given area $ S $ is divided into three equal parts, and the points of division are connected by segments, skipping one point to form two triangles. Calculate the area of the hexagon that is the common part of these triangles.... | \dfrac{2}{9} S | polaris53k | 45,195 | 1/8 | null | mixed1to3 | 2 | 0.5 | 17,391 | 0 | false | false | 4 | 3 | 3 | 3 | 0 | 0 | confirmed | true | 178 | previously_retained | |||
[
{
"role": "user",
"content": "Solve the following math problem step by step. The last line of your response should be of the form Answer: \\boxed{$Answer} where $Answer is the answer to the problem.\n\nPoints $A,$ $B,$ $C,$ and $D$ are equally spaced along a line such that $AB = BC = CD.$ A point $P$ is lo... | 43 | dapo17k | 6,662 | null | null | zero | 0 | 0 | 31,887 | 3 | false | false | 4 | 4 | 2 | 2 | 0 | 49 | 2 | confirmed | true | 179 | previously_retained | ||
[
{
"role": "user",
"content": "Let $\\Omega$ be a circle of radius 8 centered at point $O$, and let $M$ be a point on $\\Omega$. Let $S$ be the set of points $P$ such that $P$ is contained within $\\Omega$, or such that there exists some rectangle $A B C D$ containing $P$ whose center is on $\\Omega$ with $A... | 164+64 \pi | polaris53k | 31,186 | 0/8 | null | mixed1to3 | 2 | 0.5 | 17,134 | 0 | false | false | 4 | 3 | 3 | 3 | 0 | 0 | confirmed | true | 180 | previously_retained | |||
[
{
"role": "user",
"content": "Let \\( P \\) be a point selected uniformly at random in the cube \\([0,1]^{3}\\). The plane parallel to \\( x+y+z=0 \\) passing through \\( P \\) intersects the cube in a two-dimensional region \\(\\mathcal{R}\\). Let \\( t \\) be the expected value of the perimeter of \\(\\ma... | 12108 | polaris53k | 24,614 | 2/8 | null | mixed1to3 | 2 | 0.5 | 13,530 | 0 | false | false | 4 | 4 | 3 | 3 | 0 | 9809 | 1 | confirmed | true | 181 | previously_retained | ||
[
{
"role": "user",
"content": "Suppose $A:(\\mathbb{C}^n,+,\\diamond) \\to (\\mathbb{C}^n,+,\\cdot)$ is a unital homomorphism. Is $A$ necessarily invertible?\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | No | deepmath103k | 8,770 | 8.0 | Mathematics -> Algebra -> Abstract Algebra -> Field Theory | mixed1to3 | 2 | 0.5 | 12,702 | 0 | false | false | 4 | 4 | 4 | 0 | 4 | 0 | confirmed | false | 182 | previously_retained | |||
[
{
"role": "user",
"content": "Solve the following math problem step by step. The last line of your response should be of the form Answer: \\boxed{$Answer} where $Answer is the answer to the problem.\n\nDraw an equilateral triangle with center $O$. Rotate the equilateral triangle $30^\\circ, 60^\\circ, 90^\... | 102 | dapo17k | 7,503 | null | null | zero | 0 | 0 | 19,057 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 183 | previously_retained | |||
[
{
"role": "user",
"content": "Approximate the integral \\( \\int_3^4 \\frac{x}{\\sqrt{(7x-10-x^2)^3}}\\,dx \\).\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | 1.10 | deepmath103k | 52,868 | 6.0 | Mathematics -> Calculus -> Integral Calculus -> Techniques of Integration -> Single-variable | mixed1to3 | 2 | 0.5 | 19,754 | 0 | false | false | 4 | 4 | 3 | 0 | 3 | \dfrac{4\sqrt{2}}{9} | 1 | confirmed | false | 184 | previously_retained | ||
[
{
"role": "user",
"content": "Two players take turns filling in the blanks of five equations of the form \\( x^{2} + \\ldots x + \\ldots = 0 \\) with natural numbers from 1 to 10, each used exactly once. The first player aims to maximize the number of equations with two distinct roots, while the second play... | 3 | deepmath103k | 89,654 | 7.0 | Mathematics -> Algebra -> Algebra -> Equations and Inequalities | mixed1to3 | 1 | 0.25 | 21,900 | 0 | false | false | 4 | 2 | 2 | 2 | 0 | 0 | confirmed | true | 188 | previously_retained | |||
[
{
"role": "user",
"content": "Does weak convergence of a sequence of functions in $L^2$ and uniform boundedness of the sequence in $L^\\infty$ norm imply the existence of a subsequence that converges pointwise almost everywhere?\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}... | No | deepmath103k | 75,896 | 8.5 | Mathematics -> Other | mixed1to3 | 1 | 0.25 | 12,358 | 0 | false | false | 4 | 4 | 3 | 0 | 3 | \text{Yes — in fact the whole sequence converges pointwise a.e. to the weak limit } f. | 1 | confirmed | false | 190 | previously_retained | ||
[
{
"role": "user",
"content": "Determine all real numbers $a$ for which there exists a function $f: \\mathbb{R} \\to \\mathbb{R}$ satisfying the equation \\( f(\\sin x) + a f(\\cos x) = \\cos 2x \\) for all real numbers $x$. \\( \\text{(I. Voronovich)} \\)\n\nPlease reason step by step, and put your final an... | a \neq 1 | deepmath103k | 87,440 | 6.0 | Mathematics -> Precalculus -> Functions | mixed1to3 | 2 | 0.5 | 14,790 | 0 | false | false | 4 | 4 | 3 | 3 | 0 | a \in \{-1,\ 0\} | 1 | confirmed | true | 197 | previously_retained | ||
[
{
"role": "user",
"content": "Solve the following math problem step by step. The last line of your response should be of the form Answer: \\boxed{$Answer} where $Answer is the answer to the problem.\n\nThere is a very popular race course where runners frequently go for a daily run. Assume that all runners r... | 225 | dapo17k | 7,846 | null | null | zero | 0 | 0 | 15,385 | 0 | false | false | 4 | 3 | 3 | 3 | 0 | 0 | confirmed | true | 198 | previously_retained | |||
[
{
"role": "user",
"content": "There are 207 different cards with numbers $1, 2, 3, 2^{2}, 3^{2}, \\ldots, 2^{103}, 3^{103}$ (each card has one number, and each number appears exactly once). How many ways can you choose 3 cards such that the product of the numbers on the selected cards is a square of an inte... | 267903 | polaris53k | 20,064 | 0/8 | null | mixed1to3 | 1 | 0.25 | 19,364 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 199 | previously_retained | |||
[
{
"role": "user",
"content": "Given the probability of failing on the first attempt and succeeding on the second attempt to guess the last digit of a phone number is requested, calculate the probability of this event.\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | \frac{1}{10} | polaris53k | 1,818 | 5/8 | null | zero | 0 | 0 | 6,640 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 200 | previously_retained | |||
[
{
"role": "user",
"content": "Assume ZFC. Let $B \\subseteq \\mathbb{R}$ be a set that is not Borel-measurable. Can one conclude that $B$ necessarily has the cardinality of the continuum without assuming either the continuum hypothesis or its negation?\n\nPlease reason step by step, and put your final answe... | No | deepmath103k | 10,470 | 9.0 | Mathematics -> Other | mixed1to3 | 2 | 0.5 | 12,038 | 0 | false | false | 4 | 4 | 4 | 0 | 4 | 0 | confirmed | false | 201 | previously_retained | |||
[
{
"role": "user",
"content": "Solve the following math problem step by step. The last line of your response should be of the form Answer: \\boxed{$Answer} where $Answer is the answer to the problem.\n\nA farmer's rectangular field is partitioned into a $2$ by $2$ grid of $4$ rectangular sections as shown in... | 84 | dapo17k | 15,239 | null | null | mixed1to3 | 2 | 0.5 | 22,090 | 0 | false | false | 4 | 4 | 3 | 3 | 0 | 66 | 1 | confirmed | true | 202 | previously_retained | ||
[
{
"role": "user",
"content": "Find the number of positive integers $n$ less than $2017$ such that \\[1+n+\\frac{n^2}{2!}+\\frac{n^3}{3!}+\\frac{n^4}{4!}+\\frac{n^5}{5!}+\\frac{n^6}{6!}\\] is an integer.\nPlease give the answer directly without any intermediate steps.\n\nPlease reason step by step, and put y... | 134 | polaris53k | 39,853 | 4/8 | null | mixed1to3 | 2 | 0.5 | 25,264 | 1 | false | false | 4 | 4 | 2 | 2 | 0 | 336 | 1 | confirmed | true | 204 | previously_retained | ||
[
{
"role": "user",
"content": "Determine the Galois group of the polynomial \\( P(X) = (X^4 - 2)(X^2 + 2) \\) over \\( \\mathbb{Q} \\).\n\nPlease reason step by step, and put your final answer within \\boxed{}."
}
] | D_4 | deepmath103k | 6,805 | 7.5 | Mathematics -> Algebra -> Abstract Algebra -> Field Theory | mixed1to3 | 1 | 0.25 | 14,089 | 0 | false | false | 4 | 4 | 4 | 0 | 4 | 0 | confirmed | false | 206 | previously_retained | |||
[
{
"role": "user",
"content": "Thirty identical toothpicks were used to create the figure below. There are over 25 triangles in the figure. What is the fewest number of toothpicks that could be removed so that no triangles remain?\n\n[asy]\ndraw((0,0)--(8,0), linewidth(1));\ndraw(2dir(60)--(2dir(60)+(6,0)), ... | 10 | polaris53k | 19,542 | 2/8 | null | mixed1to3 | 1 | 0.25 | 15,445 | 0 | false | false | 4 | 3 | 4 | 4 | 0 | 0 | confirmed | true | 210 | previously_retained | |||
[
{
"role": "user",
"content": "Solve the following math problem step by step. The last line of your response should be of the form Answer: \\boxed{$Answer} where $Answer is the answer to the problem.\n\n已知四面体 $A B C D$ 的外接球 $\\Gamma$ 的半径为 3, 球心为 $O$, 其中 $A B$ 为球 $\\Gamma$ 的直径, $C D=3, \\angle A O C=\\theta \... | 27 | dapo17k | 12,954 | null | null | mixed1to3 | 2 | 0.5 | 19,283 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 213 | previously_retained | |||
[
{
"role": "user",
"content": "There are 6 houses, numbered 1 to 6 from left to right, as seen from across the street. Each house is occupied by a different person. Each house has a unique attribute for each of the following characteristics:\n - Each person has a unique name: `Arnold`, `Eric`, `Carol`, `Bob`... | 6 | polaris53k | 42,646 | 0/8 | null | mixed1to3 | 2 | 0.5 | 17,622 | 0 | false | false | 4 | 4 | 4 | 4 | 0 | 0 | confirmed | true | 215 | previously_retained |
Math RLVR: audited training and excluded records
This is an audited partition of the 35,660 records in
clyu/math_rlvr_filtered,
configuration rl_final, split train, pinned to revision
9106f86f6ab5159a31627af27233ef2841b27a94.
Splits
train: 18,106 records for math RLVR training, selected from the clean pool withqwen_n_correct in {0, 1, 2}.train_full: 31,838 records, preserving the previous full clean training split exactly.excluded: 3,822 excluded records, with a per-record Chinese reason. These include 3,669 remaining mathematical/question/proof exclusions and 153 uncertain records excluded by an explicit conservative selection policy. An uncertainty-policy exclusion does not assert that the reference is false.
train is a subset of train_full: the two overlap intentionally.
Use train for the selected 18k training set; use train_full to recover
the previous 31.8k clean pool. These are selection views, not independent
train/test evaluation splits. The 13,732 rows with three Qwen-correct
samples remain in train_full and are not quality exclusions.
Fields
All original fields are preserved, including prompt (role/content messages),
label (the original reference answer), source, source_idx, and the existing
Qwen/GLM diagnostic metadata. Question text and reference answers are unchanged.
All splits share the same columns. Additional fields:
hf_row_1based: original 1-based row number in the pinned source split.exclusion_reason: Chinese explanation; an empty string intrainandtrain_full.exclusion_basis: comma-separated exclusion categories; empty intrainandtrain_full.uncertainty_policyidentifies the 153 conservatively removed uncertain records.audit_state: provenance of the final selection decision.
For training, use prompt and label from the train split. Exclusion reasons
and audit metadata are documentation, not model input or target text.
Selection history
The full initial audit retained 31,766 records and excluded 3,894.
GPT-6.1 Sol with high reasoning effort then independently rechecked those
3,894 excluded records, with only the question/reference pair supplied.
This was a recheck of exclusions, not a fresh GPT-6.1 review of every retained row.
A focused answer-adequacy/proof check covered 64 restoration candidates.
After adjudication, 225 records were restored. The final user policy then removed
all 153 uncertain restorations, leaving 72 restorations:
25 judged usable and 47 retained under a reasonable standard interpretation.
The original 31,766 retained records remain in train_full.
Retained records are not a mathematical guarantee of zero residual errors. The source dataset's attribution and applicable source terms continue to apply.
Loading
from datasets import load_dataset
data = load_dataset("MatouK98/math_rlvr_filtered_audited")
train = data["train"] # 18,106
train_full = data["train_full"] # 31,838
excluded = data["excluded"] # 3,822
print(excluded[0]["exclusion_reason"])
manifest.json records file hashes and the exact source revision.
Qwen3-4B difficulty selection
The default train split contains only rows with qwen_n_correct equal to
0, 1 or 2. The respective counts are 4,882, 5,924 and 7,300.
Every question, reference answer, metadata field and original row order is
preserved. Configuration qwen3_4b_correct_0_2 provides the same 18,106 rows as
a named subset, also with a single train split.
from datasets import load_dataset
train = load_dataset("MatouK98/math_rlvr_filtered_audited", split="train")
assert len(train) == 18106
# Equivalent named subset:
same_train = load_dataset(
"MatouK98/math_rlvr_filtered_audited",
"qwen3_4b_correct_0_2",
split="train",
)
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