题意：给一个a，b，求 gcd(a!,b!)，输出min(a,b)! 就可以了

AC代码：

#include
     
      #include "iostream"#include "string.h"#include "stack"#include "queue"#include "string"#include "vector"#include "set"#include "map"#include "algorithm"#include "stdio.h"#include "math.h"#define ll long long#define bug(x) cout<
      
       <<" "<<"UUUUU"<
       
        >a>>b;    for(int i=2; i<=min(a,b); ++i){        ans*=i;    }    cout<
        
         <