Submission

Score: 100

User: Krispans

Problemset: อนุกรม

Language: cpp

Time: 0.002 second

Submitted On: 2026-09-25 16:26:13

#include <iostream>
using namespace std;

int main(){

    long long s,m=0,n=1,sum=0;
    cin >> s;
    for (int i=0; i<s-1; i++){
        sum = m+n;
        m = n;
        n = sum;
    }
    if (s==1){
        cout << 1;
    }
    else{
        cout << sum;
    }
}