Submission

Score: 100

User: ackub

Problemset: อนุกรม

Language: cpp

Time: 0.005 second

Submitted On: 2026-09-12 22:56:32

#include <iostream>
using namespace std;

int main()
{

    long long last=0,total=1,n;
    cin >> n;

    for (int i=1;i<n;i++) {
        total += last;
        last = total-last;
    }

    cout << total;

}