OJ Board

thank you for your advice
next time i will use code button and indent my program
i think if the input
2 2 2 2 2 2
the output should be
(x-2.000)^2 + (y-2.000) ^2= 0.000^2
x^2 + y^2 - 4.000x - 4.000y+ 8.000= 0
am i right ?
i have change my program but i still got WA
i really2 confuse

well.. thank you for your answer
and i have tried your advice
but i still got WA
this is my program and may be you can tell me why i got WA :D

#include<stdio.h>
#include<math.h>

float x[3],y[3];
float ak,bk,ck;

void output()
{
float r;
r=sqrt(ak*ak+bk*bk-ck);
printf("(x ");
if (-1*ak>=0 ...

can you tell me why i've got runtime error: invalid memory reference
plzzzzz....

can u give me sample input and sample output for this case
i've got WA

if u look at sample input in 447
u can see that there is no condition to end the input
so how can i end the input????
or may be i have to use freopen()
but i have tried it and got restricted function
can u help me ?