Submission

Score: 40

User: boygunner

Problemset: อนุกรม

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-07 19:36:28

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