Submission

Score: 50

User: Hax

Problemset: อนุกรม

Language: cpp

Time: 0.002 second

Submitted On: 2026-10-12 09:04:31

#include <iostream>

using namespace std;

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