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为什么会超时?#include<iostream.h>
int main()
{
int n;
while(cin>>n&&n!=0)
{
int (*a)[2]=new int[n][2];
for(int i=0;i<n;i++)
{
cin>>a[i][0]>>a[i][1];
}
int s=0;
for(i=0;i<n;i++)
{
for(int j=i+1;j<n;j++)
{
if(a[i][0]<a[j][0]&&a[i][1]<a[j][1])
{
s++;
break;
}
}
}
cout<<s<<endl;
}
return 0;
}
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