Cod sursa(job #223148)

Utilizator cotofanaCotofana Cristian cotofana Data 27 noiembrie 2008 00:00:13
Problema Nunta Scor 40
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.32 kb
Raporteaza aceasta sursa 
#include <stdio.h>

int n;

int main()
{
	int i, a, b, c;
	freopen("nunta.in", "r", stdin);
	freopen("nunta.out", "w", stdout);
	scanf("%d\n", &n);
	if (n==1 || n==2)
	{
		printf("%d\n", n);
		return 0;
	}
	n-=2;
	a=1;
	b=2;
	for (;n;n--)
	{
		c=a+b;
		a=b;
		b=c;
	}
	printf("%d\n", b);
	return 0;
}