Submission

Score: 100

User: sulinx

Problemset: อนุกรม

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-14 21:13:25

#include <iostream>

#define ll long long
using namespace std;

int main(){
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
    int n;
    cin >> n;
    ll mem[n] = {1,1};

    for(int i = 2;i<n;i++){
        mem[i] = mem[i-1] +mem[i-2];
    }

    cout << mem[n-1];
}