Submission

Status:

PPPPPPPPPP

Subtask/Task Score:

100/100

Score: 100

User: porpeang

Problemset: อนุกรม

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-01 14:51:16

#include <bits/stdc++.h>

using namespace std;

int main(){
    long long a=0,b=1,c=1,d=0,e=0,sum=1;
    cin>>a;
    while(e<=(a-3)){
        sum=b+c;
        c = b;
        b=sum;
        e++;
    }
    cout<<sum;
}