Submission

Score: 100

User: lingusso

Problemset: อนุกรม

Language: c

Time: 0.002 second

Submitted On: 2025-09-30 20:35:54

#include<stdio.h>

int main(){
	long long n;
	scanf("%lld" ,&n);
	long long f1 = 1,f2 = 1,swp;
	for(long long i = 2;i<n;i++){
		swp = f1 + f2;
		f1 = f2;
		f2 = swp;
		
	}
	printf("%lld" ,f2);
}