ENG  RUSTimus Online Judge
Online Judge
Problems
Authors
Online contests
About Online Judge
Frequently asked questions
Site news
Webboard
Links
Problem set
Submit solution
Judge status
Guide
Register
Update your info
Authors ranklist
Current contest
Scheduled contests
Past contests
Rules
back to board

Discussion of Problem 1904. The Lessons of the Past

WA 4
Posted by IgorKoval(from Pskov) 15 Oct 2012 02:21
if you get WA 4 and you solve the problem from the end, than (maybe) you must take into account that sensor return only possitive number or null    ans   intermediate value can be >= 0.

Edited by author 15.10.2012 02:29