Submission

Score: 100

User: ST68030

Problemset: อนุกรม

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-13 09:57:11

#include<bits/stdc++.h>
using namespace std;
int main(){

    int n;
    cin>>n;
    int suml=0;
    long long arr[100]={0};
    arr[0]=1;
    arr[1]=1;
    if(n==1||n==2){
        cout<<"1";
        return 0;
    }
    for(int i=2;i<n;i++){
        arr[i]=arr[i-1]+arr[i-2];
        suml+=arr[i];
        if(i==n-1)cout<<arr[i];
    }

    return 0;
}