> 怎么回事WA呢？
> #include <cstdio>
> int main()
> {
> 	int n,r,e,c,q;
> 	scanf("%d",&n);
> 	while(n--)
> 	{
> 		scanf("%d %d %d",&r,&e,&c);
> 		q=e-c;
> 		if(r<q)
> 		printf("advertise\n");
> 		else if(r>q)
> 		printf("do not advertise\n");
> 		else if(r=q)//这里错了应该为r==q
> 		printf("does not matter\n");
> 	}
//再加个return 0;
> }