CtCI 6 Solutions Ch1 Arrays And Strings Daily record 2017/05/24 1.1 Is Unique 1.2 Check Permutation 1.3 URLify 2017/05/25 2.1 Remove Duplicates 2.3 Delete Middle Node 2017/05/26 2.2 Return Kth To Last 2.4 Partition *** 2017/05/28 2.6 Palindrome 2017/05/30 3.2 Stack Min 2017/06/04 4.1 Route Between Nodes 4.2 Minimal Tree