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高手帮帮忙呀,怎么就wa了??????#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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