题解 | #函数实现计算一个数的阶乘#
函数实现计算一个数的阶乘
https://www.nowcoder.com/practice/df78ded035574202945d077cb619d0e7
#include <iostream> using namespace std; long long factorial(int n); int main() { int n; cin >> n; cout << factorial(n) << endl; return 0; } long long factorial(int n) { if(n == 1){ return 1; }else{ long long a = n * factorial(n-1); return a; } }