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235. Lowest Common Ancestor of a Binary Search Tree

摘要： https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree/#/description Given a binary search tree (BST), find the lowest common an 阅读全文

posted @ 2017-06-06 14:02 Premiumlab 阅读(118) 评论(0) 推荐(0) 编辑

252. Meeting Rooms

摘要： https://leetcode.com/problems/meeting-rooms/#/description Given an array of meeting time intervals consisting of start and end times [[s1,e1],[s2,e2], 阅读全文

posted @ 2017-06-06 10:31 Premiumlab 阅读(205) 评论(0) 推荐(0) 编辑

125. Valid Palindrome

摘要： https://leetcode.com/problems/valid-palindrome/#/description Given a string, determine if it is a palindrome, considering only alphanumeric characters 阅读全文

posted @ 2017-06-05 21:18 Premiumlab 阅读(129) 评论(0) 推荐(0) 编辑

206. Reverse Linked List

摘要： https://leetcode.com/problems/reverse-linked-list/#/description Reverse a singly linked list. Hint: A linked list can be reversed either iteratively o 阅读全文

posted @ 2017-06-04 21:02 Premiumlab 阅读(104) 评论(0) 推荐(0) 编辑

Implement a Linked List

摘要： https://github.com/Premiumlab/Python-for-Algorithms--Data-Structures--and-Interviews/blob/master/Linked%20Lists/Linked%20Lists%20Interview%20Problems/ 阅读全文

posted @ 2017-06-04 19:12 Premiumlab 阅读(156) 评论(0) 推荐(0) 编辑

121. Best Time to Buy and Sell Stock

摘要： https://leetcode.com/problems/best-time-to-buy-and-sell-stock/#/solutions Say you have an array for which the ith element is the price of a given stoc 阅读全文

posted @ 2017-06-04 17:27 Premiumlab 阅读(132) 评论(0) 推荐(0) 编辑

157. Read N Characters Given Read4

摘要： https://leetcode.com/problems/read-n-characters-given-read4/#/description The API: int read4(char *buf) reads 4 characters at a time from a file. The 阅读全文

posted @ 2017-06-04 09:18 Premiumlab 阅读(170) 评论(0) 推荐(0) 编辑

DFS and BFS

摘要： DFS https://github.com/Premiumlab/Python-for-Algorithms--Data-Structures--and-Interviews/blob/master/Graphs/Implementation%20of%20Depth%20First%20Sear 阅读全文

posted @ 2017-05-25 20:59 Premiumlab 阅读(416) 评论(0) 推荐(0) 编辑

278. First Bad Version

摘要： https://leetcode.com/problems/first-bad-version/#/description You are a product manager and currently leading a team to develop a new product. Unfortu 阅读全文

posted @ 2017-05-24 19:49 Premiumlab 阅读(109) 评论(0) 推荐(0) 编辑

67. Add Binary

摘要： https://leetcode.com/problems/add-binary/#/description Given two binary strings, return their sum (also a binary string). For example,a = "11"b = "1"R 阅读全文

posted @ 2017-05-23 17:48 Premiumlab 阅读(111) 评论(0) 推荐(0) 编辑

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