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I get WA for this problem.Who can help me?

[cpp]#include<iostream.h>
#include<math.h>
#include<stdio.h>
#define e 0.0000000000000001

int main()
{
double x,y,b,a,m;
while(1)
{
cin>>x>>y;
if((fabs(x)<e)&&(fabs(y)<e)) break;
m=x*x-sqrt(2)*x*y;
if(x<e||y<e||m<0) printf("INCORRECT INFORMATION ...

Can anyone tell me how to solve this problem?Thanks.
Does it have a formula?