摘要： 题目： Bamboo Pole-vault is a massively popular sport in Xzhiland. And Master Phi-shoe is a very popular coach for his success. He needs some bamboos for 阅读全文

摘要： Webster defines prime as:prime (prim) n. [ME, fr. MF, fem. of prin first, L primus; akin to L prior] 1: first intime: original 2 a: having no factor 阅读全文

摘要： Time limit3000 msOSLinux Write a program, that computes the number of different prime factors in a positive integer.InputThe input tests will consist 阅读全文

摘要： 青蛙的约会 Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 139755 Accepted: 31803 Description 两只青蛙在网上相识了，它们聊得很开心，于是觉得很有必要见一面。它们很高兴地发现它们住在同一条纬度线上 阅读全文

摘要： 求解a*x = b (mod p) #include<bits/stdc++.h> using namespace std; int exgcd(int a,int b,int& x,int& y) { int d=a; if(b){ d=exgcd(b,a%b,y,x); y-=(a/b)*x; 阅读全文