Factorial program in c++

1. #include <bits/stdc++.h>
2. using namespace std;
3. int main()
4. {
5.     int num, facto=1;
6.     cin>>num;
7.     for(int i=2; i<=num; i++){
8.         facto=facto*i;
9.     }
10.     return facto;
11. }

output

5

120

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