题解 | #计算一个数的阶乘#
计算一个数的阶乘
https://www.nowcoder.com/practice/b0423a89826c4d68a3e8b9832a6a1f49
#include <iostream>
using namespace std;
long long mul = 1;
long long dfs(int n)
{
if(n == 1) return 1;
mul=n*dfs(n-1);
return mul;
}
int main() {
int n;
cin >> n;
long long factorial = 1;
// write your code here......
long long ref = dfs(n);
factorial = ref;
cout << factorial << endl;
return 0;
}
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