Submission

Score: 100

User: s

Problemset: อนุกรม

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-15 09:15:04

#include<iostream>
using namespace std ;
int main() {
    long long n,n1=0,n2=1,s ;
    cin >> n ;
    for(int i=1;i<n;i++) {
        s=n1+n2 ;
        n1=n2 ;
        n2=s ;
    } cout << n2 ;
}