hello , Sorry for what happened last time .
I want to invite you to the IOI Training Contest #3 , this time the problems are from CEOI 2010 (Central European olympiad in Informatics) , it will be help in Apr/27/2016 on 18 MSK .
you should download the statements before the contest from this link : http://ceoi2010.ics.upjs.sk/Contest/Tasks the problems are Alliances(day1) PIN(day2) — Bodyguards(day1) — A Huge Tower(day2) .
the contest duration is 5 hours , the contest's link is : https://www.hackerrank.com/ioi-training-contest-3-ceoi-contest .
if anyone has one of this contests please send me a message :
japanese oi 2010 , 2011 , 2012 , 2013 , 2014 .
apio 2014 , 2013 , 2012 , 2011 , 2010 , 2009 , 2008 .
Chinese oi 2016 2015 2014 2013 2012 2011 2010 .
good luck & happy coding . contact me if you found any problem . UPD: sorry but I will change the tasks again because there is some problems have multiple solutions , the tasks are :
Harbingers CEOI 2009

bodyguards CEOI 2010