HackerRank - Woman codesprint#2 stone division - recursive intensive training (series 3 of 5)

Nov. 23, 2016

Julia failed on one medium algorithm - recursive function in the contest. So, she likes to get some training on the skill. 

 A few reasons she failed:
 1. Extra work - Recursive function involves building a string first. 
 2. Time consuming   - use StringBuilder, backtracking
 3. Failed to pass second test case; idea is not correct. 

Previous work intensive on recursive function:

Last time Julia learned recursive work intensively through HackerRank Linked List:

started from May 8 to , over 10 blogs about linked list:
http://juliachencoding.blogspot.ca/2016/05/hackerrank-linked-list-find-merge-point.html

http://juliachencoding.blogspot.ca/2016/05/hackerrank-insert-node-in-double-linked.html

Julia just marked all 13 linked list practice with label: linked list.

Use linked list in blog search to find all 13 of them.