Submission

Score: 30

User: IKKIWPR

Problemset: อนุกรม

Language: cpp

Time: 0.003 second

Submitted On: 2026-10-08 18:06:13

#include <iostream>
using namespace std;
int main(){
    int n; cin >> n;
    if (n>90) return 0;
    int arr[10]; arr[0] = 0 , arr[1] = 1;
    for(int i=2;i<=n;i++){
        arr[i] = arr[i-1] + arr[i-2];
    }
    cout << arr[n];
}