I can't understand why wa7, can somebody give me test, please?

Maybe precision or bad algo? =) I have solved this problem in fractional arithmetic.

Edited by author 25.10.2011 03:28

Edited by author 25.10.2011 03:29

Would better to have all time intervals having int left and right points.
For it we may use another length units shorter then 1m  by 50 times.

Edited by author 25.10.2011 08:44