编辑代码

#include <iostream>
using namespace std;
int factorialbyRecurse(int n){
    if(n == 1){
        return 1;
    }
    else{
        return n*factorialbyRecurse(n-1);
    }
}
int factorial(int n){
    int ret = 1;
    for(int i = 1;i<=n;++i){
        ret=ret*i;
    }
    return ret;
}
int main() {
   int n;
   cin>>n;
   cout<<"Loop"<<"n"<<"!:"<<factorial(n)<<endl;
   cout<<"Recurse"<<n<<"!:"<<factorialbyRecurse(n)<<endl;
	return 0;
}