Submission

Score: 50

User: Mocha_nb

Problemset: อนุกรม

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-07 20:58:58

#include <iostream>
using namespace std;


int main(){
    int n=0,m=1,k,sum = 1;
    cin >> k;
    for(int i=2;i<=k;i++){
        sum = n+m;
        n=m;
        m = sum;
    }
    cout << sum;
}