原创 leetcode-110. Balanced Binary Tree
leetcode-110. Balanced Binary Tree 題目： Given a binary tree, determine if it is height-balanced. For this problem,
2020-07-06 23:15:53
原创 leetcode-116. Populating Next Right Pointers in Each Node
leetcode-116. Populating Next Right Pointers in Each Node 題目： Given a binary tree struct TreeLinkNode { TreeLink
2020-07-06 23:15:53
原创 leetcode-105. Construct Binary Tree from Preorder and Inorder Traversal
leetcode-105. Construct Binary Tree from Preorder and Inorder Traversal 題目： Given preorder and inorder traversal o
2020-02-25 16:09:37
原创 leetcode-106. Construct Binary Tree from Inorder and Postorder Traversal
leetcode-106. Construct Binary Tree from Inorder and Postorder Traversal 題目： Given inorder and postorder traversal
2020-02-25 16:09:37
原创 leetcode-115. Distinct Subsequences
leetcode-115. Distinct Subsequences 題目： Given a string S and a string T, count the number of distinct subsequences
2020-02-25 16:09:37
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原创 leetcode-109. Convert Sorted List to Binary Search Tree
leetcode-109. Convert Sorted List to Binary Search Tree 題目： Given a singly linked list where elements are sorted i
2020-02-25 16:09:37
原创 leetcode-104. Maximum Depth of Binary Tree
leetcode-104. Maximum Depth of Binary Tree 題目： Given a binary tree, find its maximum depth. The maximum depth is t
2020-02-25 16:09:37
原创 leetcode-107. Binary Tree Level Order Traversal II
leetcode-107. Binary Tree Level Order Traversal II 題目： Given a binary tree, return the bottom-up level order trave
2020-02-25 16:09:37
原创 leetcode-121. Best Time to Buy and Sell Stock
leetcode-121. Best Time to Buy and Sell Stock 題目： Say you have an array for which the ith element is the price of
2020-02-25 16:09:37
原创 leetcode-114. Flatten Binary Tree to Linked List
leetcode-114. Flatten Binary Tree to Linked List 題目： Given a binary tree, flatten it to a linked list in-place. Fo
2020-02-25 16:09:37
原创 源碼分析-LinkedBlockingQueue
LinkedBlockingQueue 概述 LinkedBlockingQueue是基於鏈表的阻塞FIFO隊列，可以指定一個最大的長度限制以防止過度擴展，未指定情況下其大小爲Integer.MAX_VALUE；提供比ArrayB
2020-02-25 16:09:37
原创 leetcode-113. Path Sum II
leetcode-113. Path Sum II 題目： Given a binary tree and a sum, find all root-to-leaf paths where each path’s sum equ
2020-02-25 16:09:37
原创 leetcode-108. Convert Sorted Array to Binary Search Tree
leetcode-108. Convert Sorted Array to Binary Search Tree 題目: Given an array where elements are sorted in ascending
2020-02-25 16:09:37
原创 leetcode-117. Populating Next Right Pointers in Each Node II
leetcode-117. Populating Next Right Pointers in Each Node II 題目： Follow up for problem “Populating Next Right Poin
2020-02-25 16:09:37
原创 leetcode-119. Pascal's Triangle II
leetcode-119. Pascal’s Triangle II 題目： Given an index k, return the kth row of the Pascal’s triangle. For example,
2020-02-25 16:09:37