每天刷5道题打卡贴！

----10/13/2019----

55. Jump Game        Greedy
134. Gas Station        Greedy
104. Maximum Depth of Binary Tree        Tree
108. Convert Sorted Array to Binary Search Tree        Recursion
66. Plus One        Array
384. Shuffle an Array        Array

----10/14/2019----

328. Odd Even Linked List        Linked List
122. Best Time to Buy and Sell Stock II        Greedy
378. Kth Smallest Element in a Sorted Matrix        Binary Search
141. Linked List Cycle        Linked List, Two Pointers
19. Remove Nth Node From End of List        Linked List, Two Pointers
127. Word Ladder        BFS