//With Loop
#include <iostream>
int factorial(int n){
int t = 1;
for(int i=1; i<=n; i++){
t *= i;
}
return t;
}
int main(){
int inputNumber;
std::cout << "Enter a number: ";
std::cin >> inputNumber;
std::cout << factorial(inputNumber);
return 0;
}
---------------------------------------------------------------
// With recursion
#include <iostream>
int factorial(int n){
if(n < 2){
return 1;
}
return n * factorial(n-1);
}
int main(){
int inputNumber;
std::cout << "Enter a number: ";
std::cin >> inputNumber;
std::cout << factorial(inputNumber);
return 0;
}
