Anybody else?
I guess it's the epsilon. But I failed all trial.

So for this test:

0 0 90 5
0 -0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

correct answer is 31.4159, right?


Edited by author 01.02.2019 23:40

Can anybody explain the problem of test 3? I'm getiing WA again and again :(

Edited by author 22.06.2016 19:38

What an amusing problem! Now it seems to be easy - in contrast to prima facie :^) Special thanks to Vorokh Sergey and Mamonov Anton, who proved correctness of my solution.

And some test data

input #1:
0 0 90 5
5 4.9
output #1:
28.2176

input #2:
0 0 90 5
0 -0.000001
output #2:
31.4159

This task answer is here: http://www.sid337.newmail.ru/1340.html

Edited by author 20.03.2005 10:20

How can cockroach reach the crump if it in circle he starting running along (I mean circle which center is closer to crumb). Can he go stright ahead and then go along the circle or he has to go along other circle firstly???
I' ve tried both variants.. but i have WA#13.

What mean "the minimal turning radius of the cockroach"?

Edited by author 22.12.2006 19:29

WA#3!!! I cann't find the mistake in my code. I don't know what is wrong!

My program passes all tests which I has found in a forum, and has thought up

0 0 180 10
30 0
Answer: 67.8509

0 0 0 10
30 0
Answer: 30

Edited by author 12.05.2006 23:34

Absolutely the same solution first time got WA(15) - and then AC...