Submission

Score: 100

User: OK

Problemset: อนุกรม

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-13 10:18:24

#include<bits/stdc++.h>
using namespace std;
int main(){
    long long arr[90]={1};
    int num;cin>>num;
    int i;
    for (i=1;i<num;i++){
        if (i==1){
            arr[1]=1;
        }else{
            arr[i]=arr[i-1]+arr[i-2];
        }
    }
    cout<<arr[i-1];
}