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help!!!!!#include<iostream.h>
void main()
{
int i,j,a[15];
int num=0,n=0;
for(i=0;i<15;i++)
{
cin>>a[i];
if(a[i]==0||a[i]==-1)
break;
n++;
}
while(a[0]!=-1)
{
for(i=0;i<n;i++)
{
for(j=i+1;j<n;j++)
{
if((a[i]==2*a[j])||(2*a[i]==a[j]))
num++;
}
}
cout<<num<<endl;
num=0;
n=0;
for(i=0;i<15;i++)
{
cin>>a[i];
if(a[i]==0||a[i]==-1)
break;
n++;
}
}
}
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