题目1067：n的阶乘

#include <iostream>#include <stdio.h>#include <algorithm>#include <math.h>#include <string>#include <string.h>#include <vector>#include <queue>#include <stack>#include <sstream>#include <climits>#include <cstring>using namespace std;//1067int a;long long int b;int main(){    while(cin>>a){        b=1;        for(int i=1;i<=a;i++)            b*=i;        cout<<b<<endl;    }    return 0;}/**************************************************************    Problem: 1067    User: cust123    Language: C++    Result: Accepted    Time:10 ms    Memory:1520 kb****************************************************************/