Submission

Score: 100

User: kkxkkx001

Problemset: อนุกรม

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-09 10:06:35

#include <iostream>
using namespace std;

int main (){
	long long num;
	cin >> num;
	long long a[90];
	a[0]=1;
	a[1]=1;
	for (int i =2;i<num;i++){
		a[i]=a[i-1]+a[i-2];
	}
	
	cout << a[num-1];
}