摘要：
inline int read(){ register int x = 0, f = 1; register char ch=getchar(); while(ch<'0'||ch>'9'){ if(ch=='-') f=-1; ch=getchar(); } while(ch>='0'&&ch<= 阅读全文
摘要：
int f(int a, int b) { int ans = 1; int base = a; while (b) { if (b & 1)ans = base * ans; base = base * base; b >>= 1; } return ans; } 取余版本： int f(int 阅读全文