Datasets:
prompt listlengths 1 1 | label stringlengths 1 48 | metadata dict |
|---|---|---|
[
{
"role": "user",
"content": "Problem 11.8. In each cell of a strip $1 \\times N$ there is either a plus or a minus. Vanya can perform the following operation: choose any three cells (not necessarily consecutive), one of which is exactly in the middle between the other two cells, and change the three signs ... | 1396 | {
"ground_truth": "1396",
"data_type": "klear_math",
"num_tokens": 156
} |
[
{
"role": "user",
"content": "A goods train runs at an average speed of 72 km/h and crosses a 270 m long platform in 26 sec. During this time, the train's speed increases uniformly due to a gentle slope, and the wind is blowing perpendicular to the train's direction with a speed of 20 km/h. Additionally, th... | 283.8 | {
"ground_truth": "283.8",
"data_type": "klear_math",
"num_tokens": 126
} |
[
{
"role": "user",
"content": "Calculate an approximation of the integral \\( \\int_0^1\\int_0^1\\frac{\\log(xy)xy}{-1+\\log(xy)}dxdy \\).\n\nPlease put your final answer in \\boxed{}."
}
] | 0.111 | {
"ground_truth": "0.111",
"data_type": "klear_math",
"num_tokens": 58
} |
[
{
"role": "user",
"content": "In the tetrahedron \\(KLMN\\), the edge lengths are given as \\(KL = MN = 9\\), \\(KM = LN = 15\\), and \\(KN = LM = 16\\). The points \\(P, Q, R,\\) and \\(S\\) are the centers of the circles inscribed in the triangles \\(KLM\\), \\(KLN\\), \\(KMN\\), and \\(LMN\\), respective... | 4.85 | {
"ground_truth": "4.85",
"data_type": "klear_math",
"num_tokens": 140
} |
[
{
"role": "user",
"content": "Exercise 11. The integers $1,2, \\ldots, 20$ have been arranged around a circle, in some order. For each of these integers $k$, Matthieu counts how many integers are less than $k$ among the 9 integers that follow $k$ when traversing the circle clockwise; he counts $A(k)$. He al... | 12 | {
"ground_truth": "12",
"data_type": "klear_math",
"num_tokens": 167
} |
[
{
"role": "user",
"content": "设 V 是 10 维列向量构成的内积空间,其中对 v=(v_1,v_2,\\cdots,v_{10})^T, w=(w_1,w_2,\\cdots,w_{10})^T,v,w 的内积 \\langle v,w\\rangle=\\ds{i=1}{10}v_iw_i.对 u\\in V,定义 V 上的线性变换 P_u 如下:P_u:V\\rightarrow V,\\quad x\\mapsto x-\\df{2\\langle x,u\\rangle u}{\\langle u,u\\rangle}.给定 v,w\\in V,满足0<\\langle... | 66 | {
"ground_truth": "66",
"data_type": "klear_math",
"num_tokens": 222
} |
[
{
"role": "user",
"content": "A parametric graph is defined by:\n\\[\nx = \\cos t + \\frac{t}{3}, \\quad y = \\sin t.\n\\]\nDetermine the number of times the graph intersects itself between \\(x = 3\\) and \\(x = 45\\).\n\nPlease put your final answer in \\boxed{}."
}
] | 12 | {
"ground_truth": "12",
"data_type": "klear_math",
"num_tokens": 82
} |
[
{
"role": "user",
"content": "Equilateral $\\triangle ABC$ is inscribed in a circle. A second circle is tangent internally to the circumcircle at $T$ and tangent to sides $AB$ and $AC$ at points $P$ and $Q$. If side $BC$ has length $12$, find the length of segment $PQ$. Please put your final answer in \\box... | 8 | {
"ground_truth": "8",
"data_type": "klear_math",
"num_tokens": 86
} |
[
{
"role": "user",
"content": "Let $n \\ge 3$ be a positive integer. Suppose that $\\Gamma$ is a unit circle passing through a point $A$. A regular $3$-gon, regular $4$-gon, \\dots, regular $n$-gon are all inscribed inside $\\Gamma$ such that $A$ is a common vertex of all these regular polygons. Let $Q$ be a... | 63 | {
"ground_truth": "63",
"data_type": "klear_math",
"num_tokens": 207
} |
[
{
"role": "user",
"content": "For a finite graph \\( G \\), let \\( f(G) \\) be the number of triangles and \\( g(G) \\) the number of tetrahedra formed by edges of \\( G \\). Find the least constant \\( c \\) such that\n\\[ g(G)^{3} \\leq c \\cdot f(G)^{4} \\text{ for every graph } G. \\]\n\nPlease put you... | \frac{3}{32} | {
"ground_truth": "\\frac{3}{32}",
"data_type": "klear_math",
"num_tokens": 103
} |
[
{
"role": "user",
"content": "Michelle is drawing segments in the plane. She begins from the origin facing up the y-axis and\ndraws a segment of length 1. Now, she rotates her direction by 120°, with equal probability\nclockwise or counterclockwise, and draws another segment of length 1 beginning from the e... | 4 | {
"ground_truth": "4",
"data_type": "klear_math",
"num_tokens": 118
} |
[
{
"role": "user",
"content": "Find the maximum value of $M =\\frac{x}{2x + y} +\\frac{y}{2y + z}+\\frac{z}{2z + x}$ , $x,y, z > 0$\n\nPlease put your final answer in \\boxed{}."
}
] | 1 | {
"ground_truth": "1",
"data_type": "klear_math",
"num_tokens": 71
} |
[
{
"role": "user",
"content": "Consider a group $G$ of order $105$. Determine the number of Sylow 3-subgroups of $G$.\n\nPlease put your final answer in \\boxed{}."
}
] | 7 | {
"ground_truth": "7",
"data_type": "klear_math",
"num_tokens": 47
} |
[
{
"role": "user",
"content": "某个国家有 $2023$ 个岛和 $2022$ 座桥,任意一座桥连接两个不同的岛,任意两个岛之间至多有一座桥相连,且可以从任意一个岛通过若干座桥到达其他任何岛. 若三个岛中的某个岛与另两个岛都有桥连接, 则称这三个岛组成\"岛群\", 已知任两个\"岛群\"中都有相同的岛,那么恰有一座桥的岛最少有多少个?\n\nPlease put your final answer in \\boxed{}."
}
] | 1011 | {
"ground_truth": "1011",
"data_type": "klear_math",
"num_tokens": 123
} |
[
{
"role": "user",
"content": "4. Let real numbers $a_{1}, a_{2}, \\cdots, a_{40}$ satisfy $\\sum_{i=1}^{40} a_{i}=0$, and\n\nfor any $i=1,2, \\cdots, 40$, we have $\\left|a_{i}-a_{i+1}\\right| \\leqslant 1$ (define $a_{41}=a_{1}$ ).\nFind: (1) the maximum value of $a_{10}+a_{20}+a_{30}+a_{40}$;\n(2) the max... | \frac{425}{8} | {
"ground_truth": "\\frac{425}{8}",
"data_type": "klear_math",
"num_tokens": 194
} |
[
{
"role": "user",
"content": "Let $n \\geqslant 2$ be a positive integer. Paul has a $1 \\times n^{2}$ rectangular strip consisting of $n^{2}$ unit squares, where the $i^{\\text {th }}$ square is labelled with $i$ for all $1 \\leqslant i \\leqslant n^{2}$. He wishes to cut the strip into several pieces, whe... | 5 | {
"ground_truth": "5",
"data_type": "klear_math",
"num_tokens": 233
} |
[
{
"role": "user",
"content": "In a group of 2017 persons, any pair of persons has exactly one common friend (other than the pair of persons). Determine the smallest possible value of the difference between the numbers of friends of the person with the most friends and the person with the least friends in su... | 2014 | {
"ground_truth": "2014",
"data_type": "klear_math",
"num_tokens": 80
} |
[
{
"role": "user",
"content": "Ash writes the positive integers from $1$ to $2016$ inclusive as a single positive integer $n = 1234567891011\\ldots2016$. What is the result obtained by successively adding and subtracting the digits of $n$? In other words, compute $1 - 2 + 3 - 4 + 5 - 6 + 7 - 8 + 9 - 1 + 0 - ... | -1008 | {
"ground_truth": "-1008",
"data_type": "klear_math",
"num_tokens": 130
} |
[
{
"role": "user",
"content": "Determine the largest natural number $m$ such that for each non-negative real numbers $a_1 \\ge a_2 \\ge \\ldots \\ge a_{2014} \\ge 0$, the following inequality holds: $$\\frac{a_1 + a_2 + \\ldots + a_m}{m} \\ge \\sqrt{\\frac{a_1^2 + a_2^2 + \\ldots + a_{2014}^2}{2014}}.$$\n\nP... | 44 | {
"ground_truth": "44",
"data_type": "klear_math",
"num_tokens": 130
} |
[
{
"role": "user",
"content": "A classroom consists of a $5 \\times 5$ array of desks, to be filled by anywhere from 0 to 25 students, inclusive. No student will sit at a desk unless either all other desks in its row or all others in its column are filled (or both). Considering only the set of desks that are... | 962 | {
"ground_truth": "962",
"data_type": "klear_math",
"num_tokens": 104
} |
[
{
"role": "user",
"content": "Example 4-19 The number of different schemes for dice in Example 4-15 of Section 4.6 can also be solved using the generating function type Pólya's theorem as follows:\n$$\n\\begin{aligned}\nP= & \\frac{1}{24} \\times\\left[\\left(x_{1}+x_{2}+x_{3}+x_{4}+x_{5}+x_{6}\\right)^{6}\... | 30 | {
"ground_truth": "30",
"data_type": "klear_math",
"num_tokens": 463
} |
[
{
"role": "user",
"content": "11.46 On an $8 \\times 8$ chessboard, some squares are marked with stars, such that\n(1) no two squares marked with stars share a common edge or vertex;\n(2) every unmarked square shares a common edge or vertex with at least one marked square.\nWhat is the minimum number of squ... | 9 | {
"ground_truth": "9",
"data_type": "klear_math",
"num_tokens": 104
} |
[
{
"role": "user",
"content": "Find the number of 12-cycles in the tent map.\n\nPlease put your final answer in \\boxed{}."
}
] | 335 | {
"ground_truth": "335",
"data_type": "klear_math",
"num_tokens": 34
} |
[
{
"role": "user",
"content": "Determine all integers \\( n \\geq 3 \\) for which there exists a regular \\( n \\)-sided polygon in the plane with all vertices at integer coordinate points.\n\nPlease put your final answer in \\boxed{}."
}
] | 4 | {
"ground_truth": "4",
"data_type": "klear_math",
"num_tokens": 57
} |
[
{
"role": "user",
"content": "已知 S_n 为数列 \\{a_n\\} 的前 n 项和,且 S_n=\\df{9}{8}a_n-\\df{3}{8}\\cdot 3^n+\\df{3}{8}. 则使 \\ds{i=1}{n}\\df{S_i}{a_i}<2024 成立的最大正整数 n 的值为__________.\n\nPlease put your final answer in \\boxed{}."
}
] | 1799 | {
"ground_truth": "1799",
"data_type": "klear_math",
"num_tokens": 103
} |
[
{
"role": "user",
"content": "How many ten digit positive integers with distinct digits are multiples of $11111$ ?\n\nPlease put your final answer in \\boxed{}."
}
] | 3456 | {
"ground_truth": "3456",
"data_type": "klear_math",
"num_tokens": 41
} |
[
{
"role": "user",
"content": "A triangle has vertices $A(0,0)$, $B(12,0)$, and $C(8,10)$. The probability that a randomly chosen point inside the triangle is closer to vertex $B$ than to either vertex $A$ or vertex $C$ can be written as $\\frac{p}{q}$, where $p$ and $q$ are relatively prime positive integer... | 409 | {
"ground_truth": "409",
"data_type": "klear_math",
"num_tokens": 112
} |
[
{
"role": "user",
"content": "Given a set \\( M \\) consisting of the entire plane excluding three distinct points \\( A, B, C \\), find the minimum number of convex sets whose union equals \\( M \\).\n\nPlease put your final answer in \\boxed{}."
}
] | 3 | {
"ground_truth": "3",
"data_type": "klear_math",
"num_tokens": 58
} |
[
{
"role": "user",
"content": "On a $5 \\times 5$ grid, Petya marks several cells. Vasya will win if he can cover all marked cells with non-overlapping L-shaped triominoes (each L-shape covers exactly three cells and must stay within the borders of the grid). What is the minimum number of cells Petya must ma... | 9 | {
"ground_truth": "9",
"data_type": "klear_math",
"num_tokens": 99
} |
[
{
"role": "user",
"content": "Consider the polynomial \\(x(x+1)(x+2)\\cdots(x+239)\\) and its expansion:\n\\[\nx(x+1)(x+2)\\cdots(x+239) = \\sum_{n=1}^{240}a_nx^n\n\\]\nDetermine the total number of coefficients \\(a_n\\) that are exactly multiples of 3.\n\nPlease put your final answer in \\boxed{}."
}
] | 159 | {
"ground_truth": "159",
"data_type": "klear_math",
"num_tokens": 106
} |
[
{
"role": "user",
"content": "Let $A_1B_1C_1$ be a triangle with $A_1B_1 = 16, B_1C_1 = 14,$ and $C_1A_1 = 10$ . Given a positive integer $i$ and a triangle $A_iB_iC_i$ with circumcenter $O_i$ , define triangle $A_{i+1}B_{i+1}C_{i+1}$ in the following way:\n\n(a) $A_{i+1}$ is on side $B_iC_i$... | 10800 | {
"ground_truth": "10800",
"data_type": "klear_math",
"num_tokens": 338
} |
[
{
"role": "user",
"content": "Let $a > 0$, and let $P(x)$ be a polynomial with integer coefficients such that\n\\[P(1) = P(3) = P(5) = P(7) = a\\]and\n\\[P(2) = P(4) = P(6) = P(8) = -a.\\]What is the smallest possible value of $a$?\n\nPlease put your final answer in \\boxed{}."
}
] | 315 | {
"ground_truth": "315",
"data_type": "klear_math",
"num_tokens": 104
} |
[
{
"role": "user",
"content": "Consider a sphere centered at the origin $(0, 0, 0)$ in the $xyz$ coordinate system. Initially, the lower hemisphere (with negative $y$-coordinate) is painted. The sphere is then randomly rotated about any axis passing through the center. Determine the expected number of rotati... | 4 | {
"ground_truth": "4",
"data_type": "klear_math",
"num_tokens": 88
} |
[
{
"role": "user",
"content": "During recess, $n$ students sit in a circle around their teacher to play a game. The teacher distributes candy to the students in a clockwise direction according to the following rules: first, the teacher selects a student and gives them one piece of candy. The teacher then ski... | 2 | {
"ground_truth": "2",
"data_type": "klear_math",
"num_tokens": 148
} |
[
{
"role": "user",
"content": "3. Given\n$$\n5 x+16 y+33 z \\geqslant 136\\left(x 、 y 、 z \\in \\mathbf{R}_{+}\\right) \\text {. }\n$$\n\nthen the minimum value of $x^{3}+y^{3}+z^{3}+x^{2}+y^{2}+z^{2}$ is\n\nPlease put your final answer in \\boxed{}."
}
] | 50 | {
"ground_truth": "50",
"data_type": "klear_math",
"num_tokens": 107
} |
[
{
"role": "user",
"content": "Let $z$ be a complex number and $k$ a positive integer such that $z^{k}$ is a positive real number other than 1. Let $f(n)$ denote the real part of the complex number $z^{n}$. Assume the parabola $p(n)=an^{2}+bn+c$ intersects $f(n)$ four times, at $n=0,1,2,3$. Assuming the smal... | \frac{1}{3} | {
"ground_truth": "\\frac{1}{3}",
"data_type": "klear_math",
"num_tokens": 125
} |
[
{
"role": "user",
"content": "Equilateral triangle $\\triangle ABC$ has side length $6$. Points $D$ and $E$ lie on $\\overline{BC}$ such that $BD = CE$ and $B$, $D$, $E$, $C$ are collinear in that order. Points $F$ and $G$ lie on $\\overline{AB}$ such that $\\overline{FD} \\perp \\overline{BC}$, and $GF = G... | 14 | {
"ground_truth": "14",
"data_type": "klear_math",
"num_tokens": 190
} |
[
{
"role": "user",
"content": "Let $s_1, s_2, s_3$ be the three roots of $x^3 + x^2 +\\frac92x + 9$ . $$ \\prod_{i=1}^{3}(4s^4_i + 81) $$ can be written as $2^a3^b5^c$ . Find $a + b + c$ .\n\nPlease put your final answer in \\boxed{}."
}
] | 16 | {
"ground_truth": "16",
"data_type": "klear_math",
"num_tokens": 112
} |
[
{
"role": "user",
"content": "Find all distinct isomorphisms \\(\\sigma\\) of \\(\\mathbb{Q}(\\sqrt{1+\\sqrt{2}})\\) in a subfield of \\(\\mathbb{\\bar{Q}}\\) such that \\(\\sigma(a) = a\\) for all \\(a \\in \\mathbb{Q}\\).\n\nPlease put your final answer in \\boxed{}."
}
] | 4 | {
"ground_truth": "4",
"data_type": "klear_math",
"num_tokens": 88
} |
[
{
"role": "user",
"content": "两个圆内切于 $K$, 大圆的弦 $A B$ 与小圆切于 $L$, 已知 $A K: B K=2: 5, A L=10$ ,求 $B L$ 的长。\n\nPlease put your final answer in \\boxed{}."
}
] | 25 | {
"ground_truth": "25",
"data_type": "klear_math",
"num_tokens": 74
} |
[
{
"role": "user",
"content": "Consider a cube with a fly standing at each of its vertices. When a whistle blows, each fly moves to a vertex in the same face as the previous one but diagonally opposite to it. After the whistle blows, in how many ways can the flies change position so that there is no vertex w... | 81 | {
"ground_truth": "81",
"data_type": "klear_math",
"num_tokens": 86
} |
[
{
"role": "user",
"content": "Farmer James invents a new currency such that for every positive integer $n \\leq 6$, there exists an $n$-coin worth $n!$ cents. Furthermore, he has exactly $n$ copies of each $n$-coin. An integer $k$ is said to be *nice* if Farmer James can make $k$ cents using at least one co... | 210 | {
"ground_truth": "210",
"data_type": "klear_math",
"num_tokens": 119
} |
[
{
"role": "user",
"content": "In a math competition, 5 problems were assigned. There were no two contestants who solved exactly the same problems. However, for any problem that is disregarded, for each contestant there is another contestant who solved the same set of the remaining 4 problems. How many conte... | 32 | {
"ground_truth": "32",
"data_type": "klear_math",
"num_tokens": 80
} |
[
{
"role": "user",
"content": "3. Circles $\\omega_{1}$ and $\\omega_{2}$ intersect at points $A$ and $B$, and a circle with center at point $O$ encompasses circles $\\omega_{1}$ and $\\omega_{2}$, touching them at points $C$ and $D$ respectively. It turns out that points $A, C$, and $D$ lie on the same line... | 90 | {
"ground_truth": "90",
"data_type": "klear_math",
"num_tokens": 110
} |
[
{
"role": "user",
"content": "Determine the maximum value of $n$ such that there exists a sequence $a_1, a_2, \\ldots, a_n$ of positive integers satisfying the condition that for every $2 \\leq k \\leq n$, the expression \\( \\sqrt[k]{a_1^k + a_2^k + \\cdots + a_k^k} \\) is an integer. If no such maximum ex... | 3 | {
"ground_truth": "3",
"data_type": "klear_math",
"num_tokens": 122
} |
[
{
"role": "user",
"content": "6. A polynomial $P(x)$ is a base-n polynomial if it is of the form $a_{d} x^{d}+a_{d-1} x^{d-1}+\\cdots+a_{1} x+a_{0}$, where each $a_{i}$ is an integer between 0 and $n-1$ inclusive and $a_{d}>0$. Find the largest positive integer $n$ such that for any real number $c$, there e... | 9 | {
"ground_truth": "9",
"data_type": "klear_math",
"num_tokens": 151
} |
[
{
"role": "user",
"content": "$p$ is a prime number such that the period of its decimal reciprocal is 200. That is,\n\n$$\n\\frac{1}{p}=0.XXXX\\ldots\n$$\n\nfor some block of 200 digits $X$, but\n\n$$\n\\frac{1}{p} \\neq 0.YYYY\\ldots\n$$\n\nfor all blocks $Y$ with less than 200 digits. Find the 101st digit... | 9 | {
"ground_truth": "9",
"data_type": "klear_math",
"num_tokens": 131
} |
[
{
"role": "user",
"content": "For some positive integer $n,$ $0 < n < 180,$\n\\[\\csc (2^3)^\\circ + \\csc (2^4)^\\circ + \\csc (2^5)^\\circ + \\dots + \\csc (2^{2019})^\\circ = \\sec n^\\circ.\\]Find $n.$\n\nPlease put your final answer in \\boxed{}."
}
] | 82 | {
"ground_truth": "82",
"data_type": "klear_math",
"num_tokens": 100
} |
[
{
"role": "user",
"content": "Find the sum of all positive integers $B$ such that $(111)_B = (aabbcc)_6$, where $a, b, c$ represent distinct base $6$ digits, with $a \\neq 0$.\n\nPlease put your final answer in \\boxed{}."
}
] | 237 | {
"ground_truth": "237",
"data_type": "klear_math",
"num_tokens": 71
} |
[
{
"role": "user",
"content": "There is a pack of 27 distinct cards, and each card has three values on it. The first value is a shape from $\\{\\Delta,\\square,\\odot\\}$; the second value is a letter from $\\{A,B,C\\}$; and the third value is a number from $\\{1,2,3\\}$.\nIn how many ways can we choose an u... | 2358 | {
"ground_truth": "2358",
"data_type": "klear_math",
"num_tokens": 166
} |
[
{
"role": "user",
"content": "3. (Michael Tang) In rectangle $ABCD$ with center $O$, $AB = 10$ and $BC = 8$. Circle $\\gamma$ has\ncenter $O$ and lies tangent to $AB$ and $CD$. Points $M$ and $N$ are chosen on $AD$ and $BC$,\nrespectively; segment $MN$ intersects $\\gamma$ at two distinct points $P$ and $Q$... | 16808 | {
"ground_truth": "16808",
"data_type": "klear_math",
"num_tokens": 185
} |
[
{
"role": "user",
"content": "Let $m, n \\in \\mathbb{N}^*$. Find the least $n$ for which there exists $m$, such that the rectangle $(3m + 2) \\times (4m + 3)$ can be covered with $\\frac{n(n + 1)}{2}$ squares, among which there are $n$ squares of length $1$, $n - 1$ squares of length $2$, ..., and $1$ squa... | 8 | {
"ground_truth": "8",
"data_type": "klear_math",
"num_tokens": 138
} |
[
{
"role": "user",
"content": "For positive integers $n$ and $k$, let $\\mho(n,k)$ be the number of distinct prime divisors of $n$ that are at least $k$. For example, $\\mho(90, 3)=2$, since the only prime factors of $90$ that are at least $3$ are $3$ and $5$. Find the closest integer to\n\\[\\sum_{n=1}^\\in... | 167 | {
"ground_truth": "167",
"data_type": "klear_math",
"num_tokens": 153
} |
[
{
"role": "user",
"content": "Let $\\Gamma_1$ be a circle with radius $\\frac{5}{2}$. $A$, $B$, and $C$ are points on $\\Gamma_1$ such that $\\overline{AB} = 3$ and $\\overline{AC} = 5$. Let $\\Gamma_2$ be a circle such that $\\Gamma_2$ is tangent to $AB$ and $BC$ at $Q$ and $R$, and $\\Gamma_2$ is also int... | 19 | {
"ground_truth": "19",
"data_type": "klear_math",
"num_tokens": 198
} |
[
{
"role": "user",
"content": "Let $x$, $y$, $z$ be positive real numbers satisfying the simultaneous equations\n\\begin{align*}x(y^2+yz+z^2)&=3y+10z\\\\y(z^2+zx+x^2)&=21z+24x\\\\z(x^2+xy+y^2)&=7x+28y.\\end{align*}\nFind $xy+yz+zx$.\n\nPlease put your final answer in \\boxed{}."
}
] | 31 | {
"ground_truth": "31",
"data_type": "klear_math",
"num_tokens": 114
} |
[
{
"role": "user",
"content": "Let $ABC$ be an acute triangle with $BC = 48$. Let $M$ be the midpoint of $BC$, and let $D$ and $E$ be the feet of the altitudes drawn from $B$ and $C$ to $AC$ and $AB$ respectively. Let $P$ be the intersection between the line through $A$ parallel to $BC$ and line $DE$. If $AP... | 26 | {
"ground_truth": "26",
"data_type": "klear_math",
"num_tokens": 121
} |
[
{
"role": "user",
"content": "A convex 2011-gon is drawn on the board. Peter keeps drawing its diagonals in such a way that each newly drawn diagonal intersects no more than one of the already drawn diagonals. What is the greatest number of diagonals that Peter can draw?\n\nPlease put your final answer in \... | 4016 | {
"ground_truth": "4016",
"data_type": "klear_math",
"num_tokens": 75
} |
[
{
"role": "user",
"content": "Let $E$ be a set of $n$ points in the plane $(n \\geq 3)$ whose coordinates are integers such that any three points from $E$ are vertices of a nondegenerate triangle whose centroid doesnt have both coordinates integers. Determine the maximal $n.$\n\nPlease put your fin... | 8 | {
"ground_truth": "8",
"data_type": "klear_math",
"num_tokens": 87
} |
[
{
"role": "user",
"content": "Let $a, b$, and $c$ be real numbers. Let $u = a^2 + b^2 + c^2$ and $v = 2ab + 2bc + 2ca$. Suppose $2018u = 1001v + 1024$. Find the maximum possible value of $35a - 28b - 3c$.\n\nPlease put your final answer in \\boxed{}."
}
] | 32 | {
"ground_truth": "32",
"data_type": "klear_math",
"num_tokens": 107
} |
[
{
"role": "user",
"content": "How many positive integers less than $555$ are either a perfect cube or a perfect square? Please put your final answer in \\boxed{}."
}
] | 29 | {
"ground_truth": "29",
"data_type": "klear_math",
"num_tokens": 40
} |
[
{
"role": "user",
"content": "Evaluate the limit: $$\\lim_{n\\to+\\infty} \\prod_{k=1}^{n} \\frac{2k}{2k+1}$$\n\nPlease put your final answer in \\boxed{}."
}
] | 0 | {
"ground_truth": "0",
"data_type": "klear_math",
"num_tokens": 57
} |
[
{
"role": "user",
"content": "Given the system of equations with positive numbers \\( x, y, z \\):\n\n\\[ \\left\\{\\begin{array}{l}\nx^{2}+xy+y^{2}=75 \\\\\ny^{2}+yz+z^{2}=4 \\\\\nz^{2}+xz+x^{2}=79\n\\end{array}\\right. \\]\n\nFind the value of the expression \\( xy + yz + xz \\).\n\nPlease put your final ... | 20 | {
"ground_truth": "20",
"data_type": "klear_math",
"num_tokens": 115
} |
[
{
"role": "user",
"content": "What is the minimum number of three-cell corners that can be placed in an $8 \\times 8$ square so that no more such corners can be placed in this square?\n\nPlease put your final answer in \\boxed{}."
}
] | 11 | {
"ground_truth": "11",
"data_type": "klear_math",
"num_tokens": 56
} |
[
{
"role": "user",
"content": "Find the least positive integer that cannot be represented as $\\frac{2^a-2^b}{2^c-2^d}$ for some positive integers $a, b, c, d$.\n\nPlease put your final answer in \\boxed{}."
}
] | 11 | {
"ground_truth": "11",
"data_type": "klear_math",
"num_tokens": 62
} |
[
{
"role": "user",
"content": "Find the number of ordered triples of positive integers \\((a, b, c)\\) such that \\(abc\\) divides \\((ab + 1)(bc + 1)(ca + 1)\\).\n\nPlease put your final answer in \\boxed{}."
}
] | 16 | {
"ground_truth": "16",
"data_type": "klear_math",
"num_tokens": 62
} |
[
{
"role": "user",
"content": "Rhombus $ABCD$ has $\\angle BAD < 90^\\circ.$ There is a point $P$ on the incircle of the rhombus such that the distances from $P$ to the lines $DA,AB,$ and $BC$ are $9,$ $5,$ and $16,$ respectively. Find the perimeter of $ABCD.$\n\nPlease put your final answer in \\boxed{}."
... | 125 | {
"ground_truth": "125",
"data_type": "klear_math",
"num_tokens": 96
} |
[
{
"role": "user",
"content": "A circle with center $O$ has radius 25. Chord $\\overline{AB}$ of length 30 and chord $\\overline{CD}$ of length 14 intersect at point $P$. The distance between the midpoints of the two chords is 12. The quantity $OP^2$ can be represented as $\\frac{m}{n}$, where $m$ and $n$ ar... | 57 | {
"ground_truth": "57",
"data_type": "klear_math",
"num_tokens": 131
} |
[
{
"role": "user",
"content": "For a positive integer $n$ , define $n?=1^n\\cdot2^{n-1}\\cdot3^{n-2}\\cdots\\left(n-1\\right)^2\\cdot n^1$ . Find the positive integer $k$ for which $7?9?=5?k?$ .\n\n*Proposed by Tristan Shin*\n\nPlease put your final answer in \\boxed{}."
}
] | 10 | {
"ground_truth": "10",
"data_type": "klear_math",
"num_tokens": 99
} |
[
{
"role": "user",
"content": "In triangle $ABC$, $AC = 13$, $BC = 14$, and $AB=15$. Points $M$ and $D$ lie on $AC$ with $AM=MC$ and $\\angle ABD = \\angle DBC$. Points $N$ and $E$ lie on $AB$ with $AN=NB$ and $\\angle ACE = \\angle ECB$. Let $P$ be the point, other than $A$, of intersection of the circumcir... | 218 | {
"ground_truth": "218",
"data_type": "klear_math",
"num_tokens": 475
} |
[
{
"role": "user",
"content": "已知 x_1,x_2,\\cdots,x_{50} 是实数,且 \\ds{i=1}{50}\\df{x_i}{k+i}=\\df{2021}{2k+1} 对任意 k\\in\\{1,2,\\cdots,50\\} 成立. 求 \\ds{i=1}{50}\\df{x_i}{4042i+2021} 的值.原始的答案是\\frac{m}{n}的形式,其中m、n是互质的。请给出最终m + n的值\n\nPlease put your final answer in \\boxed{}."
}
] | 12751 | {
"ground_truth": "12751",
"data_type": "klear_math",
"num_tokens": 148
} |
[
{
"role": "user",
"content": "设 $m, n$ 是给定的整数, $m \\geq n \\geq 3$ 。求具有下述性质的最小正整数 $k$ :若将 $1,2, \\cdots, k$ 中的每个数任意染为红色或者蓝色,则或者存在 $m$ 个红色的数 $x_{1}, x_{2}, \\cdots, x_{m}$ (允许相同),满足 $x_{1}+x_{2}+\\cdots+x_{m-1}<x_{m}$ ,或者存在 $n$ 个蓝色的数 $y_{1}, y_{2}, \\cdots, y_{n}$ (允许相同),满足 $y_{1}+y_{2}+\\cdots+y_{n-1}<y_{n}... | 17 | {
"ground_truth": "17",
"data_type": "klear_math",
"num_tokens": 206
} |
[
{
"role": "user",
"content": "Example 4 Draw the following lines on the coordinate plane $y=k, y=\\sqrt{3} x+2 k, y=-\\sqrt{3} x+2 k$, where $k=$ $0, \\pm 1, \\pm 2, \\cdots, \\pm 10$. These 63 lines can divide the plane into several equilateral triangles. Find the number of equilateral triangles with side ... | 660 | {
"ground_truth": "660",
"data_type": "klear_math",
"num_tokens": 138
} |
[
{
"role": "user",
"content": "A square has vertices $(0,10)$, $(0, 0)$, $(10, 0)$, and $(10,10)$ on the $x-y$ coordinate plane. A second quadrilateral is constructed with vertices $(0,10)$, $(0, 0)$, $(10, 0)$, and $(15,15)$. Find the positive difference between the areas of the original square and the seco... | 50 | {
"ground_truth": "50",
"data_type": "klear_math",
"num_tokens": 118
} |
[
{
"role": "user",
"content": "Determine the number of digits in the largest natural number $N$ that does not contain the digit $0$, has a digit sum of $2021$, and where the digit sum of $2N$ does not exceed $1202$.\n\nPlease put your final answer in \\boxed{}."
}
] | 757 | {
"ground_truth": "757",
"data_type": "klear_math",
"num_tokens": 73
} |
[
{
"role": "user",
"content": "The figure below has only two sizes for its internal angles. The larger angles are three times the size of the\nsmaller angles. Find the degree measure of one of the larger angles. For figure here: http://www.purplecomet.org/welcome/practice\n\nP.S The figure has 9 sides. Please... | 252 | {
"ground_truth": "252",
"data_type": "klear_math",
"num_tokens": 85
} |
[
{
"role": "user",
"content": "正整数 n 的分拆 P=(x_1,x_2,\\cdots,x_n) 是一个非负整数组,满足 \\ds{k=1}{n}kx_k=n. 正整数 m(m\\leq n) 的分拆 Q=(y_1,y_2,\\cdots,y_m) 称为与 P 相容,如果 y_i\\leq x_i, i=1,2,\\cdots,m.记 S(n) 为 n 的满足下述要求的分拆 P 的个数:对每个小于 n 的正奇数 m,m 恰有一个与 P 相容的分拆;对每个小于 n 的正偶数 m,m 恰有两个与 P 相容的分拆. 求 S(2010) 的值.\n\nPlease put your fi... | 13 | {
"ground_truth": "13",
"data_type": "klear_math",
"num_tokens": 187
} |
[
{
"role": "user",
"content": "Find positive integers $n$ and $a_{1}, a_{2}, \\ldots, a_{n}$ such that \\n$$\\na_{1}+a_{2}+\\cdots+a_{n}=1979\\n$$\\nand the product $a_{1} a_{2} \\cdots a_{n}$ is as large as possible. Please provide the value of $a + n$. Please put your final answer in \\boxed{}."
}
] | 662 | {
"ground_truth": "662",
"data_type": "klear_math",
"num_tokens": 108
} |
[
{
"role": "user",
"content": "In an abandoned chemistry lab, Gerome found a two-pan balance scale and three 1-gram weights, three 5-gram weights, and three 50-gram weights. By placing one pile of chemicals and as many weights as necessary on the pans of the scale, Gerome can measure out various amounts of t... | 129 | {
"ground_truth": "129",
"data_type": "klear_math",
"num_tokens": 107
} |
[
{
"role": "user",
"content": "Determine the number of unique closed paths on the edges of a given Platonic solid, where each edge can be traversed only once, and paths that are related by a rotation of the solid are considered identical.\n\nPlease put your final answer in \\boxed{}."
}
] | 1 | {
"ground_truth": "1",
"data_type": "klear_math",
"num_tokens": 63
} |
[
{
"role": "user",
"content": "In how many ways can $47$ be written as the sum of two primes? Please put your final answer in \\boxed{}."
}
] | 0 | {
"ground_truth": "0",
"data_type": "klear_math",
"num_tokens": 37
} |
[
{
"role": "user",
"content": "Larry always orders pizza with exactly two of his three favorite toppings: pepperoni, bacon, and sausage. If he has ordered a total of $600$ pizzas and has had each topping equally often, how many pizzas has he ordered with pepperoni? Provide your answer as an integer. Please p... | 400 | {
"ground_truth": "400",
"data_type": "klear_math",
"num_tokens": 78
} |
[
{
"role": "user",
"content": "Let \\( x_1 < x_2 < \\ldots < x_{2024} \\) be positive integers. Define \\( p_i = \\prod_{k=1}^{i} \\left(x_k - \\frac{1}{x_k}\\right) \\) for \\( i = 1, 2, \\ldots, 2024 \\). Determine the maximal number of positive integers among the \\( p_i \\).\n\nPlease put your final answ... | 2023 | {
"ground_truth": "2023",
"data_type": "klear_math",
"num_tokens": 114
} |
[
{
"role": "user",
"content": "Suppose that $a$ and $b$ are digits, not both nine and not both zero, and the repeating decimal $0.\\overline{ab}$ is expressed as a fraction in lowest terms. How many different denominators are possible? Please put your final answer in \\boxed{}."
}
] | 5 | {
"ground_truth": "5",
"data_type": "klear_math",
"num_tokens": 71
} |
[
{
"role": "user",
"content": "A function $y(x)$ satisfies the differential equation $y^{\\prime}=4\\sqrt{y-x^2}$. Given that $y(1)=2$, find $y(3)$.\n\nPlease put your final answer in \\boxed{}."
}
] | 18 | {
"ground_truth": "18",
"data_type": "klear_math",
"num_tokens": 62
} |
[
{
"role": "user",
"content": "In triangle $ABC$, $BC = 23$, $CA = 27$, and $AB = 30$. Points $V$ and $W$ are on $\\overline{AC}$ with $V$ on $\\overline{AW}$, points $X$ and $Y$ are on $\\overline{BC}$ with $X$ on $\\overline{CY}$, and points $Z$ and $U$ are on $\\overline{AB}$ with $Z$ on $\\overline{BU}$.... | 318 | {
"ground_truth": "318",
"data_type": "klear_math",
"num_tokens": 316
} |
[
{
"role": "user",
"content": "For a positive integer $n$, let $f(n)$ be the integer formed by reversing the digits of $n$ (and removing any leading zeroes). For example, $f(14172) = 27141$. Define a sequence of numbers $\\{a_n\\}_{n \\ge 0}$ by $a_0 = 1$ and for all $i \\ge 0$, $a_{i+1} = 11a_i$ or $a_{i+1}... | 13 | {
"ground_truth": "13",
"data_type": "klear_math",
"num_tokens": 147
} |
[
{
"role": "user",
"content": "Problem 1\n\nFind the largest integer $k$ having the following property: for any real numbers $x_{1}, x_{2}, \\ldots, x_{2024}$ such that\n\n$$\nx_{1}^{2}=\\left(x_{1}+x_{2}\\right)^{2}=\\cdots=\\left(x_{1}+x_{2}+\\cdots+x_{2024}\\right)^{2}\n$$\n\nthere are at least $k$ of the... | 675 | {
"ground_truth": "675",
"data_type": "klear_math",
"num_tokens": 134
} |
[
{
"role": "user",
"content": "For any finite set $X$, let $| X |$ denote the number of elements in $X$. Define \\[ S_n = \\sum | A \\cap B | , \\] where the sum is taken over all ordered pairs $(A, B)$ such that $A$ and $B$ are subsets of $\\left\\{ 1 , 2 , 3, \\cdots , n \\right\\}$ with $|A| = |B|$. For e... | 245 | {
"ground_truth": "245",
"data_type": "klear_math",
"num_tokens": 328
} |
[
{
"role": "user",
"content": "Find the last three digits of the number \\(8^{8^8}\\).\n\nPlease put your final answer in \\boxed{}."
}
] | 656 | {
"ground_truth": "656",
"data_type": "klear_math",
"num_tokens": 36
} |
[
{
"role": "user",
"content": "3. Let's consider the set\n\n$$\nU=\\bigcup_{i=1}^{\\infty} \\mathcal{P}^{i}(\\varnothing)\n$$\n\nwhere $\\mathcal{P}(X)$ denotes the set of all subsets of the set $X$, and $\\mathcal{P}^{i}(X)$ denotes the expression $\\mathcal{P}(\\mathcal{P}(\\ldots \\mathcal{P}(X) \\ldots)$... | 2018 | {
"ground_truth": "2018",
"data_type": "klear_math",
"num_tokens": 210
} |
[
{
"role": "user",
"content": "Compute the limit: $$\\lim_{n\\to\\infty}\\frac{\\Gamma(n+1)\\Gamma(\\alpha-n+1)}{n^{\\alpha+1} }$$ where $\\Gamma$ is the standard gamma function and $\\alpha\\in\\mathbb{R}$.\n\nPlease put your final answer in \\boxed{}."
}
] | 0 | {
"ground_truth": "0",
"data_type": "klear_math",
"num_tokens": 80
} |
[
{
"role": "user",
"content": "We colour every square of the $ 2009$ x $ 2009$ board with one of $ n$ colours (we do not have to use every colour). A colour is called connected if either there is only one square of that colour or any two squares of the colour can be reached from one another by a sequence of ... | 4017 | {
"ground_truth": "4017",
"data_type": "klear_math",
"num_tokens": 142
} |
[
{
"role": "user",
"content": "14. $A, B, C$ three people went to Teacher $D$'s house to play. Teacher $D$ gave each of them a hat and wrote a four-digit number on each hat. It is known that these three four-digit numbers are all perfect squares (for example, $4=2^{2}, 100=10^{2}$, 4 and 100 are both squares... | 14612 | {
"ground_truth": "14612",
"data_type": "klear_math",
"num_tokens": 285
} |
[
{
"role": "user",
"content": "Let $ S$ be the set of points in the Cartesian plane that satisfy\r\n\\[ \\Big|\\big|{|x| \\minus{} 2}\\big| \\minus{} 1\\Big| \\plus{} \\Big|\\big|{|y| \\minus{} 2}\\big| \\minus{} 1\\Big| \\equal{} 1.\r\n\\]\r\nIf a model of $ S$ were built from wire of negligible thickne... | 10 | {
"ground_truth": "10",
"data_type": "klear_math",
"num_tokens": 178
} |
[
{
"role": "user",
"content": "Determine the maximal length $L$ of a sequence $a_{1}, \\ldots, a_{L}$ of positive integers satisfying both the following properties:\n- every term in the sequence is less than or equal to $2^{2023}$, and\n- there does not exist a consecutive subsequence $a_{i}, a_{i+1}, \\ldot... | 2025 | {
"ground_truth": "2025",
"data_type": "klear_math",
"num_tokens": 231
} |
[
{
"role": "user",
"content": "Let $P(x)$ be a polynomial with integer coefficients satisfying $$(x^2+1)P(x-1)=(x^2-10x+26)P(x)$$ for all real numbers $x.$ Find the sum of all possible values of $P(0)$ between $1$ and $5000,$ inclusive.\n\nPlease put your final answer in \\boxed{}."
}
] | 5100 | {
"ground_truth": "5100",
"data_type": "klear_math",
"num_tokens": 93
} |
[
{
"role": "user",
"content": "Shapovalov A.V.\n\nThe cells of a chessboard are numbered from 1 to 64 in such a way that adjacent numbers are in adjacent (by side) cells.\n\nWhat is the smallest possible sum of the numbers on the diagonal?\n\n#\n\nPlease put your final answer in \\boxed{}."
}
] | 88 | {
"ground_truth": "88",
"data_type": "klear_math",
"num_tokens": 75
} |
[
{
"role": "user",
"content": "Example 1 A deck of tri-color cards, consisting of 32 cards in total, where there are 10 cards of each color: red, yellow, and blue, numbered $1,2, \\cdots, 10$; in addition, there is a big joker and a small joker, each numbered 0. From this deck, several cards are drawn, and t... | 1006009 | {
"ground_truth": "1006009",
"data_type": "klear_math",
"num_tokens": 158
} |
[
{
"role": "user",
"content": "Find the smallest real number \\( r \\) such that there exists a sequence of positive real numbers \\(\\{x_n\\}\\) satisfying \\(\\sum_{i=1}^{n+1} x_i \\leq r \\cdot x_n\\) for any \\( n \\in \\mathbb{N}^+ \\).\n\nPlease put your final answer in \\boxed{}."
}
] | 4 | {
"ground_truth": "4",
"data_type": "klear_math",
"num_tokens": 88
} |
[
{
"role": "user",
"content": "Isabella writes the expression $\\sqrt{d}$ for each positive integer $d$ not exceeding 8 ! on the board. Seeing that these expressions might not be worth points on HMMT, Vidur simplifies each expression to the form $a \\sqrt{b}$, where $a$ and $b$ are integers such that $b$ is ... | 534810086 | {
"ground_truth": "534810086",
"data_type": "klear_math",
"num_tokens": 170
} |
math-rlvr-15k
Math RLVR 15K is a 15,000-example English mathematical reasoning dataset prepared for reinforcement learning with verifiable rewards (RLVR). It is derived from mathematical data in allenai/RLVR-MATH and allenai/Dolci-RL-Zero-Mix-7B.
Each example contains a single user prompt, a reference final answer, and compact metadata for reward routing. Prompts ask the model to place its final answer in \boxed{}. The dataset contains problems and answer targets; it does not contain model-generated responses or chain-of-thought traces.
Dataset summary
| Property | Value |
|---|---|
| Examples | 15,000 |
| Split | train only |
| File | math-rlvr-15k.jsonl |
| Format | UTF-8 JSON Lines; one object per line |
| File size | 7,569,123 bytes (approximately 7.22 MiB) |
| Unique prompts | 15,000 |
| Prompt shape | One user message per example |
| Prompt length in characters | min 73; median 308; P95 669; max 4,087 |
metadata.num_tokens |
min 31; median 107; P95 219; max 1,773 |
All 15,000 lines parse as JSON and have the same top-level and metadata schemas. Every reference answer is a non-empty string, and every normalized prompt is unique within the released file.
Upstream sources
- allenai/RLVR-MATH: mathematical prompts with verifiable ground-truth answers.
- allenai/Dolci-RL-Zero-Mix-7B: a broader RLVR mixture containing math, code, instruction-following, and general data; this release uses mathematical data from that mixture.
The released schema does not retain a per-example source field, so the contribution of each upstream repository cannot be reconstructed from math-rlvr-15k.jsonl alone. metadata.data_type is a reward-routing identifier, not an upstream-source identifier.
Data format
Each line follows this structure:
{
"prompt": [
{
"role": "user",
"content": "<mathematics problem>\n\nPlease put your final answer in \\boxed{}."
}
],
"label": "<reference final answer>",
"metadata": {
"ground_truth": "<reference final answer>",
"data_type": "klear_math",
"num_tokens": 128
}
}
Fields
prompt: A list containing exactly one user message. All prompts request a final answer in LaTeX\boxed{}form.label: The reference final answer as a string.metadata.ground_truth: The verifier target. It is identical tolabelfor all 15,000 examples.metadata.data_type: The reward-routing identifier; it isklear_mathfor every example.metadata.num_tokens: A precomputed prompt token count. The tokenizer used to compute this value is not recorded in the released file.
Loading the dataset
from datasets import load_dataset
dataset = load_dataset(
"wflying/math-rlvr-15k",
split="train",
)
example = dataset[0]
prompt = example["prompt"]
expected_answer = example["metadata"]["ground_truth"]
For RLVR training, pass the content of prompt to the model and compare the extracted boxed final answer against metadata.ground_truth with an appropriate mathematical answer verifier.
Data quality and validation
- 15,000 of 15,000 lines are valid JSON.
- Every record contains
prompt,label, andmetadata. - Every prompt contains exactly one message with
role: "user". - Every prompt includes the requested
\boxed{}answer format. - Every
labelandmetadata.ground_truthvalue is a non-empty string. label == metadata.ground_truthfor every record.- Every
metadata.data_typevalue isklear_math. - All 15,000 normalized prompts are unique.
These checks establish structural consistency, not the mathematical correctness of every problem or reference answer.
Intended use
This dataset is intended for research and development involving:
- reinforcement learning with verifiable mathematical rewards;
- mathematical reasoning post-training;
- evaluation of answer extraction and mathematical verification;
- controlled experiments with a compact, uniform RLVR schema.
Limitations
- The dataset contains only a training split.
- Per-example upstream provenance is not retained in the released schema.
metadata.num_tokenscannot be reproduced exactly without the original tokenizer configuration.- Exact-string comparison may reject mathematically equivalent answers; use a robust mathematical verifier when appropriate.
- Source data may contain incorrect answers, ambiguous questions, malformed notation, duplicates not captured by exact prompt matching, or overlap with downstream evaluations.
- This compilation has not been independently audited for personal information, harmful content, or benchmark contamination.
Users should validate answer coverage, reward behavior, and train/evaluation separation for their application.
License and attribution
The Dolci RL-Zero Mix Dataset Card declares the Open Data Commons Attribution License v1.0 (ODC-By) and points users to the Allen Institute for AI Responsible Use Guidelines. At the time this card was prepared, the RLVR-MATH repository did not declare a license in its Dataset Card or Hub metadata.
Because this release combines material from both repositories, no single license identifier is asserted in this card's YAML metadata. Users are responsible for reviewing and complying with the terms, attribution requirements, and responsible-use guidance applicable to each upstream source. This section is informational and is not legal advice.
Citation
Please cite and attribute the upstream dataset repositories used in this release:
The Dolci RL-Zero Mix Dataset Card states that its technical manuscript is forthcoming.
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