#include <iostream>
using namespace std;
int factorial(int num) {
int kq;
for (int i=1; i<= num;i++) {
kq = num*i;
}
return kq;
}
int main() {
// your code goes here
cout<<"kq:" <<factorial(4);
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwppbnQgZmFjdG9yaWFsKGludCBudW0pIHsKCWludCBrcTsKCQlmb3IgKGludCBpPTE7IGk8PSBudW07aSsrKSB7CgkJa3EgPSBudW0qaTsKCX0KCQlyZXR1cm4ga3E7CiAKCX0KaW50IG1haW4oKSB7CgkvLyB5b3VyIGNvZGUgZ29lcyBoZXJlCgljb3V0PDwia3E6IiA8PGZhY3RvcmlhbCg0KTsKCXJldHVybiAwOwp9