ID  NAME  QUALITY  USERS  ACC %  DIFFICULTY C I 

127  Johnny Goes Shopping  9  1342 


28641  Finding true twins  3  58 

#partition
The partition problem is the task of deciding whether a given multiset of positive integers can be partitioned into two subsets such that the sum of the numbers in first subset equals the sum of the numbers in second subset
https://en.wikipedia.org/wiki/Partition_problem http://www.geeksforgeeks.org/dynamicprogrammingset18partitionproblem/