Leetcode coding exercises in Scala

Writing the exercises in leetcode.com using Scala language.

Purpose

This project was created to save the exercises I am doing using Scala programming language. It is a way to keep up with the language and learn how to use the Scala test library as well.

Exercises developed so far

• Length of last word
• Merge sorted array
• Remove duplicates from sorted list
• Single number
• Single number II
• Single number III
• Merge Two Sorted Lists
• Remove duplicates from sorted list II
• Valid palindrome
• Path sum
• Count and say
• Binary tree level traversal
• Binary tree level traversal II
• Maximum Depth of Binary Tree
• Longest common prefix
• Plus one
• Path sum II
• Flatten binary tree
• Word break
• Roman to integer
• Maximum SubArray
• Partition list
• Add binary
• Contains duplicate
• Middle of linked list
• Jewels and stones
• Reverse linked list

Versions

• v1.0.21.0 (10/12/2018) - Added Reverse linked list exercise.

• v1.0.21.0 (10/07/2018) - Added Jewels and stones exercise.

• v1.0.20.2 (10/06/2018) - Improved null argument handling for Middle of linked list exercise.

• v1.0.20.1 (10/06/2018) - Improved null argument handling for Contains duplicate exercise.

• v1.0.20.0 (10/06/2018) - Added Middle of linked list exercise.

• v1.0.19.0 (10/04/2018) - Added Contains duplicate exercise.

• v1.0.18.0 (09/26/2018) - Added add binary exercise.

• 1.0.17.0 (09/23/2018) - Added few more unit tests for partition list exercise.

• 1.0.17.0 (09/19/2018) - Added Partition List exercise.

• 1.0.16.0 (07/21/2018) - Added Maximum SubArray exercise - not optimized version.

• 1.0.15.0 (07/16/2018) - Added Roman to Integer exercise.

• 1.0.14.0 (07/10/2018) - Added Word break exercise.

• 1.0.13.0 (06/10/2018) - Added Flatten binary tree exercise.

• 1.0.12.0 (06/09/2018) - Added Sum Path II exercise and minor fix to Sum path exercise.

• 1.0.11.0 (05/20/2018) - Added Plus One exercise.

• 1.0.10.0 (05/19/2018) - Added Longest common prefix exercise.

• 1.0.9.0 (04/21/2018) - Added Maximum Depth of Binary Tree exercise.

• 1.0.8.0 (04/21/2018) - Added Binary tree level traversal II exercise.

• 1.0.7.0 (04/14/2018) - Added CountAndSay exercise.

• 1.0.6.3 (04/13/2018) - Added Travis CI badge.

• 1.0.6.2 (04/13/2018) - Added Travis CI badge.

• 1.0.6.1 (04/13/2018) - Added Travis CI support.

• 1.0.4.0 (04/04/2018) - Added "Path sum" exercise.

• 1.0.3.0 (03/31/2018) - Added "Valid palindrome" exercise.

• 1.0.2.0 (03/30/2018) - Added "Remove duplicates from sorted list II" exercise.

• 1.0.1.0 (03/30/2018) - Added "Merge Two Sorted Lists" exercise.

• 1.0.0.0 (03/30/2018) - Initial version.