『算法-ACM 竞赛-数学-数论』HDU1222 狼和兔子（最大公约数）问题描述有一座周围有 n 个洞的小山。孔从 0 到 n-1 有符号。 兔子必须藏在其中一个洞中。狼以逆时针方向搜索兔子。他第一个进入的洞是一个用 0 签名的洞。然后，他将每 m 个洞进入一个洞。例如，m = 2 和 n = 6，狼将进入带有符号 0,2,4,0 的孔。如果兔子躲在标有 1,3 或 5 的孔中

『算法-ACM 竞赛-数学-数论』HDU-5878 Count Two Three 2016 ACM_ICPC Asia Regional Qingdao Online 10011234567891011121314151617181920212223I will show you the most popular board game in the Shanghai Ingress Resist

『算法-ACM 竞赛-数学-数论』HDU-2698 Maximum Multiple（规律）1Given an integer nn, Chiaki would like to find three positive integers xx, yy and zzsuch that: n=x+y+zn=x+y+z, x∣nx∣n, y∣ny∣n, z∣nz∣n and xyzxyz is maxim

『算法-ACM 竞赛-数学-数论』hdu 6216 A Cubic number and A Cubic Number (公式推导）1234567891011121314151617181920212223242526272829A cubic number is the result of using a whole number in a multiplication three times.

『算法-ACM 竞赛-数学-数论』HDU 6063 RXD and math （跟莫比乌斯没有半毛钱关系的打表）RXD is a good mathematician.One day he wants to calculate:output the answer module 109+7. p1,p2,p3…pk are different prime numbers InputThere ar

『算法-ACM 竞赛-数学-数论』HDU 6128 Inverse of sum （公式推导论）Description 给 nn 个小于 pp 的非负整数 a1,…,na1,…,n，问有多少对(i,j)(1≤i<j≤n)(i,j)(1≤i<j≤n)模 pp 在意义下满足 1ai+aj≡1ai+1aj1ai+aj≡1ai+1aj，即这两个数的和的逆元等于这两个数的逆元的和，注意 0 没有

『算法-ACM 竞赛-数学-数论』hdu 5878 I Count Two Three（二分）I will show you the most popular board game in the Shanghai Ingress Resistance Team.It all started several months ago.We found out the home address of th

『算法-ACM 竞赛-数学-数论』Hdu 5793 A Boring Question （打表+逆元）There are an equation.∑0≤k1,k2,⋯km≤n∏1⩽j<m(kj+1kj)%1000000007=?We define that (kj+1kj)=kj+1!kj!(kj+1−kj)! . And (kj+1kj)=0 while kj

『算法-ACM 竞赛-数学-数论』HDU 5382 GCD？LCM？（详细推导，不懂打我）DescribtionFirst we define:(1) lcm(a,b), the least common multiple of two integers a and b, is the smallest positive integer that is divisible by both a an

『算法-ACM 竞赛-数学-数论』HDU 5223 - GCDDescribtionIn mathematics, the greatest common divisor (gcd) of two or more integers, when at least one of them is not zero, is the largest positive integer that divides