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全部文章 / LeetCode （共151篇）

LeetCode: 118. Pascal's Triangle

LeetCode: 118. Pascal’s Triangle 题目描述 Given numRows, generate the first numRows of Pascal’s triangle. For example, given numRows = 5, Return [ ...

2018-04-03

0 470

LeetCode: 117. Populating Next Right Pointers in Each Node II

LeetCode: 117. Populating Next Right Pointers in Each Node II 题目描述 Follow up for problem “Populating Next Right Pointers in Each Node”. What if the...

2018-04-02

0 367

LeetCode: 116. Populating Next Right Pointers in Each Node

LeetCode: 116. Populating Next Right Pointers in Each Node 题目描述 Given a binary tree struct TreeLinkNode { TreeLinkNode *left; TreeL...

2018-04-01

0 527

LeetCode: 114. Flatten Binary Tree to Linked List

LeetCode: 114. Flatten Binary Tree to Linked List 题目描述 Given a binary tree, flatten it to a linked list in-place. For example, Given 1 ...

2018-03-30

0 674

LeetCode: 113. Path Sum II

LeetCode: 113. Path Sum II 题目描述 Given a binary tree and a sum, find all root-to-leaf paths where each path’s sum equals the given sum. For example:...

2018-03-29

0 376

LeetCode: 112. Path Sum

LeetCode: 112. Path Sum 题目描述 Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along t...

leetcode

2018-03-28

0 405

LeetCode: 111. Minimum Depth of Binary Tree

LeetCode: 111. Minimum Depth of Binary Tree 题目描述 Given a binary tree, find its minimum depth. The minimum depth is the number of nodes along the sh...

leetcode

2018-03-28

0 413

LeetCode: 110. Balanced Binary Tree

LeetCode: 110. Balanced Binary Tree 题目描述 Given a binary tree, determine if it is height-balanced. For this problem, a height-balanced binary tree i...

2018-03-27

0 443

LeetCode: 109. Convert Sorted List to Binary Search Tree

LeetCode: 109. Convert Sorted List to Binary Search Tree 题目描述 Given a singly linked list where elements are sorted in ascending order, convert it to...

leetcode linkedlist tree binary tree BST

2018-03-26

0 404

LeetCode: 108. Convert Sorted Array to Binary Search Tree

LeetCode: 108. Convert Sorted Array to Binary Search Tree 题目描述 Given an array where elements are sorted in ascending order, convert it to a height b...

2018-03-26

0 399