Submission

Score: 100

User: PutterThecityboy

Problemset: อนุกรม

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-07 12:55:36

#include <iostream>
using namespace std;
int main(){
    long long arr[1005];
    arr[0] = 1;
    arr[1] = 1;
    int n;
    cin >> n;
    for (int i = 2; i < n; i++){
        arr[i] = arr[i - 2] + arr[i - 1];
    }
    cout << arr[n - 1];

    return 0;
}