Submission

Score: 100

User: code

Problemset: อนุกรม

Language: cpp

Time: 0.003 second

Submitted On: 2025-11-11 20:39:31

#include <bits/stdc++.h>
using namespace std;
int main(){
    int want;cin>>want;
    long long arr[90]={0};
    for (int i=0;i<want;i++){
        if (i==0||i==1){
            arr[i]=1;
        }else if (i!=0||i!=1){
            arr[i]=arr[i-2]+arr[i-1];
        }
        //cout<<arr[i]<<" ";
    }
    cout<<arr[want-1];
}