> #include <stdio.h>
> 
> int main()
> {
> 	int num,t,i,z,j,o;
> 	int a[35];
> 	freopen("in.txt","r",stdin);
> 	scanf("%d",&t);
> 	for(z=0;z<t;z++)
> 	{
> 		j=o=0;
> 		scanf("%d",&num);
> 		if(num%2==1)
> 		{
> 			printf("YES\n");
> 			continue;
> 		}	
> 		for(i=0;i<num;i++)
> 		{
> 			scanf("%d",&a[i]);
> 			if(a[i]==1)
> 			{
> 				if((i+1)%2==1)
> 					j++;
> 				else 
> 					o++;
> 			}
> 		}	
> 		if(j-o<=1&&j-0>=-1)
> 			printf("YES\n");
> 		else
> 			printf("NO\n");
> 	}
> 	return 0;
> }

• Re:请教诸位，哪里错了 (5) c_light 2009-03-29 15:30:42