http://acm.nyist.net/JudgeOnline/problem.php?pid=464

#include<stdio.h>
int main()
{
	int even,odd,sum;
	int i,n,arr[110];
	while(~scanf("%d",&n))
	{
		even=odd=sum=0;
		for(i=0;i<n;i++)
		{
			scanf("%d",&arr[i]);
			sum+=arr[i];
			if(arr[i]%2!=0)
				even++;
			else
				odd++;
		}
		if(sum%2==0)
			printf("%d\n",odd);
		else
			printf("%d\n",even);
	}
	return 0;
} 

NYOJ 464 Cookies【简单题】