Submission

Score: 100

User: koon

Problemset: อนุกรม

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-08 13:26:53

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

int main() {
    long long n;
    cin >> n;
    vector<long long> num = {1, 1};
    for (int i = 2; i <= n; i++) {
        num.push_back(num[i-2]+num[i-1]);
    }
    cout << num[n-1];
    return 0;
}