Submission

Score: 100

User: karnsinee

Problemset: อนุกรม

Language: cpp

Time: 0.003 second

Submitted On: 2025-07-11 20:19:38

#include<bits/stdc++.h>
using namespace std;
int main(){
	long long a[100]={0};
	a[0]=1;
	a[1]=1;
	for(int i=2;i<100;i++){
		a[i]=a[i-1]+a[i-2];
		/*cout<<i<<" ";
		cout<<a[i]<<"\n";*/
	}
	int x;
	cin>>x;
	if(x==1||x==2){
		cout<<"1";
			return 0;
	}


	cout<<a[x-1];

}