Submission

Score: 100

User: 666whynot

Problemset: อนุกรม

Language: cpp

Time: 0.002 second

Submitted On: 2025-05-27 23:10:35

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

int main(){
    int n;
    cin >> n;
    long long sum[91];
    sum[1] = 1;
    sum[2] = 1;
    for(int i=3;i<=n;i++){
        sum[i] = sum[i-1] + sum[i-2];
    }
    cout << sum[n];
}