Cod sursa(job #117407)

Utilizator gabitzish1Gabriel Bitis gabitzish1 Data 21 decembrie 2007 13:48:02
Problema Dusman Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.23 kb
Raporteaza aceasta sursa 
#include <stdio.h>

int n;

int main()
{
	freopen("drepte2.in","r",stdin);
	freopen("drepte2.out","w",stdout);
	scanf("%d",&n);
	long i, rez;
	rez=1;	
	for (i=1; i<=n; i++) rez += i;
	printf("%ld\n",rez);
	return 0;
}