Submission

Score: 50

User: speed_coding

Problemset: อนุกรม

Language: cpp

Time: 0.002 second

Submitted On: 2026-09-29 19:09:11

#include <bits/stdc++.h>
using namespace std;

int main() {
    int n;
    cin >> n;

    int a = 0, b = 1;

    for (int i = 1; i <= n; i++) {
        int c = a + b;
        a = b;
        b = c;
    }

    cout << a << "\n";

    return 0;
}