Submission

PPPPP-----

Score: 50

User: monpluk

Problemset: อนุกรม

Language: cpp

Time: 0.002 second

Submitted On: 2025-03-10 13:25:12

#include <iostream>
#include <cmath>
using namespace std;

int main(){
    int fibo1=1,fibo2=1,n,fibo3;
    cin >> n;
    if(n==1 || n==2){
        cout << 1;
        return 0;
    }
    for(int i=0;i<n-2;i++){
        fibo3 = fibo2 + fibo1;
        fibo1 = fibo2;
        fibo2 = fibo3;
    }
    cout << fibo3;
  return 0;
}