2019：【例4.4】求阶乘

#include<cstdio>
using namespace std;
int main()
{
    long long s=1;
    int n;
    scanf("%d",&n);
    for(int i=1;i<=n;++i)
      s*=i;
    printf("%lld\n",s);
    return 0;
}

标签：std,4.4,int,long,2019,阶乘,main
来源： https://www.cnblogs.com/zheng1945/p/16273099.html