Submission

Score: 50

User: Hax

Problemset: อนุกรม

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-12 08:54:34

#include <iostream>

using namespace std;

int main() {
    int n;
    int f0 = 0;
    int f1 = 1;
    int fn;
    cin >> n;
    for (int i = 1; i < n; i ++) {
        fn = f0 + f1;
        f0 = f1;
        f1 = fn;
    }
    cout << fn;
}