对于C(n, m) mod p.这里的n,m,p(p为素数)都很大的情况.就不能再用C(n, m) = C(n - 1,m) + C(n - 1, m - 1)的公式递推了. 这里用到Lusac定理 For non-negative integers m and n and a prime p, the following congruence relation holds: where and are the base p expansions of m and n respectively.…
对于C(n, m) mod p.这里的n,m,p(p为素数)都很大的情况.就不能再用C(n, m) = C(n - 1,m) + C(n - 1, m - 1)的公式递推了. 这里用到Lusac定理 For non-negative integers m and n and a prime p, the following congruence relation holds: where and are the base p expansions of m and n respectively.…
http://acm.hdu.edu.cn/showproblem.php?pid=3037 Lucas定理模板. 现在才写,noip滚粗前兆QAQ #include<cstdio> #include<cstring> #include<algorithm> using namespace std; typedef long long ll; int jc[100003]; int p; int ipow(int x, int b) { ll t = 1, w = x;…
Codeforces Round #258 (Div. 2) Devu and Flowers E. Devu and Flowers time limit per test 4 seconds memory limit per test 256 megabytes input standard input output standard output Devu wants to decorate his garden with flowers. He has purchased n boxes…
A Simple Nim Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 980 Accepted Submission(s): 573 Problem Description Two players take turns picking candies from n heaps,the player who picks the l…
Graph Reconstruction Time Limit: 2 Seconds Memory Limit: 65536 KB Special Judge Let there be a simple graph with N vertices but we just know the degree of each vertex. Is it possible to reconstruct the graph only by these information? A sim…