Submission

Score: 100

User: I_am_me

Problemset: อนุกรม

Language: cpp

Time: 0.003 second

Submitted On: 2025-09-23 19:31:50

#include<iostream> 
#include<string>
using namespace std;
int main() {
	long long count,f1 =1,f2 = 1,f=1;
	cin >> count;
	for (long long  i = 0; i < count-2;i++) {
		f = f1 + f2;
		f1 = f2;
		f2 = f;
	}
	cout << f;
}