Question

write a function to input any number from user and calculate its factorial​

Answer 1

Explanation:

#include<bits/stdc++.h>

using namespace std;

int main() {

int n;

cin>>n;

int f = 1;

for( int i=1; i<=n; i++) {

f = f * i;

}

cout<< "Factorial is" << f <<endl;

}