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高手帮帮忙呀,怎么就wa了??????

Posted by 00430030 at 2005-01-11 16:41:50 on Problem 1552
#include<stdio.h>
#include<math.h>
void main()
{
	int i,m,n,p=0,a[20];
	for(;;)
	{	for(i=0;;i++)
		{
			scanf("%d",&a[i]);
			if(a[i]==-1)  goto  end;
			else if(a[i]==0)goto loop;
		}
loop:		for(m=0;m<i;m++)
			{for(n=0;n<i;n++)
			if(a[m]==2*a[n]) p++;}
				printf("%d\n",p);
	}
end:;
}

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