Discussion @ 1840. Victim of Advertising @ Timus Online Judge

Shen Yang I get confused.. [2] // Problem 1840. Victim of Advertising 30 Nov 2016 13:11

On test #22,we can extend two segments and get two valid circles,which circle do we choose
??

Shen Yang Re: I get confused.. [1] // Problem 1840. Victim of Advertising 30 Nov 2016 13:28

Maybe there are some error in my code...
seems there can only be one circle..

Edited by author 30.11.2016 13:28

Shen Yang Re: I get confused.. // Problem 1840. Victim of Advertising 30 Nov 2016 15:11

Spend one day for a typing error:

alpha=atan2(y4-y3,x4-y3)+pi/2.;

it's 作死 for Chinese

Discussion of Problem 1840. Victim of Advertising