Cod sursa(job #139171)

Utilizator crawlerPuni Andrei Paul crawler Data 19 februarie 2008 19:46:03
Problema Operatii Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.29 kb
Raporteaza aceasta sursa 
#include <cstdio>

unsigned long long n,ret,a,b;

int main()
{
	freopen("operatii.in","r",stdin);
	freopen("operatii.out","w",stdout);

	scanf("%lld",&n);
	for (int i=1;i<=n;++i)
	{
		scanf("%lld", &b);
		if(b && b>a) ret+=b-a;
		a=b;
	}	

	printf("%lld\n", ret);
	
	return 0;
}