OJ Board

I don't know what's wrong with your program.
But I suggest that you can think the problem
in another way.
Try to consider only 1/4 graph.
Then to check each grid,if the distance from left_up point to original point is larger
than (2*n-1)/2,the grid is out of circle.
Else if the distance form ...

I don't know what's wrong with your program.
But I suggest that you can think the problem
in another way.
Try to consider only 1/4 graph.
Then to check each grid,if the distance from left_up point to original point is larger
than (2*n-1)/2,the grid is out of circle.
Else if the distance form right ...

I checked my codes several days.
I think that it's correct,but I received WA
and WA and WA...><...
I don't know what's wrong with my codes.
All cases consist of positive integers,
negative integers,and 0 () are all correct..
Can you help me...
I really need your help....

/* @JUDGE_ID: 17563KJ 112 C ...