My algo is to check that:
1) all spins done in same side
2) all sides are equal
3) all angles are equal
4) in any comparsions precision equals 0.000001 (I tried many variants of precision but got WA12 in any case)

It's hard for me to find tests in this problem :(
What the hell is 12 test?

Edited by author 04.10.2012 12:13

make sure every edge longer than 1e-6