July LeetCode Challenge Solutions.

Week 1

• Arranging Coins
• Binary Tree Level Order Traversal II
• Prison Cells After N Days
• Ugly Number II
• Hamming Distance
• Plus One
• Island Perimeter

Week 2

• 3 Sum
• Maximum Width of Binary Tree
• Flatten a Multilevel Doubly Linked List
• Subsets
• Reverse Bits
• Same Tree
• Angle Between Hands of a Clock

Week 3

• Reverse Words in a String
• Pow(x,n)
• Top K Frequent Elements
• Course Schedule II
• Add Binary
• Remove LinkedList Elements
• Word Search

Week 4

• Binary Tree Zigzag Level Order Traversal
• Single Number III
• All Paths From Source to Target
• Find Minimum in Rotated Sorted Array II
• Add Digits
• Construct Binary Tree from Inorder and Postorder Traversal
• Task Scheduler

Week 5

• Best Time to Buy and Sell Stock with Cooldown
• Word Break II
• Climbing Stairs