====== Contest Problem Sets======
===== Contest 4.4. 2013 =====
  * [[http://www.spoj.com/problems/CTRICK/|Card Trick]]
  * [[http://www.spoj.com/problems/MATSUM/|Matrix Summation]] (Hint: Use 2D BIT - [[http://community.topcoder.com/tc?module=Static&d1=tutorials&d2=binaryIndexedTrees| BIT Tutorial on TopCoder]])
  * [[http://www.spoj.com/problems/MSE06H/|Japan]]
  * [[http://www.spoj.com/problems/RRSCHED/|Round-Robin Scheduling]]
  * [[http://www.spoj.com/problems/YODANESS/|Yodaness Level]]
  * [[http://www.spoj.com/problems/BRCKTS/|Brackets]]
  * [[http://www.spoj.com/problems/SETNJA/|Setnja]]
  * [[http://www.spoj.com/problems/PYRA/|Treeramids]]
  * [[http://www.spoj.com/problems/PALIN/|The Next Palindrome]]
  * [[http://www.spoj.com/problems/MAXSUMSQ/|Maximum Sum Sequences]]
  * [[http://www.spoj.com/problems/TTTABLE/|Train TimeTable]]
  * [[http://www.spoj.com/problems/SEQ5/|How many subsequences]]