Submission

Score: 100

User: boygunner

Problemset: อนุกรม

Language: cpp

Time: 0.005 second

Submitted On: 2026-10-07 19:43:38

#include <iostream>
using namespace std;
int main(){
	long long a=1,b=1,temp;
	int n;
	cin>>n;
	if(n!=1 || n!=2){
		for(int i=3;i<=n;i++){
			temp=a+b;
			a=b;
			b=temp;
		}
	}
	cout<<b;
	
}