Submission

Score: 10

User: exoworldgd

Problemset: อนุกรม

Language: cpp

Time: 0.002 second

Submitted On: 2025-05-30 09:39:03

#include <bits/stdc++.h>
using namespace std;
int main(void) {
	int n;
    unsigned long long u = 1, v = 1, t;
    cin >> n;
    for(int i=2; i<=n; i++) t = u + v, u = v,v = t;
    cout << v;
}