菜鸡的博客

/* 求逆元 费马小定理 a^(p-1)=1(mod p) 故 a^(p-2)=1/a(mod p) inv(a)(a关于p的逆元)=a^(p-2) */ #include<cstdio> #include<algorithm> #include<cstring> #include<cmath> #include<string> #...

Farmer John keeps a website called ‘FansBlog’ .Everyday , there are many people visited this blog.One day, he find the visits has reached P , which is a prime number.He thinks it is a interesting fact...