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LeetCode 212: Word Search II

摘要： https://leetcode.com/problems/word-search-ii/description/ Given a 2D board and a list of words from the dictionary, find all words in the board. Each 阅读全文

posted @ 2017-09-17 12:37 Yu's Garden 阅读(1423) 评论(0) 推荐(0)

LeetCode: Lowest Common Ancestor of a Binary Search Tree 解题报告

摘要： https://leetcode.com/submissions/detail/32662938/Given a binary search tree (BST), find the lowest common ancestor (LCA) of two given nodes in the BST... 阅读全文

posted @ 2015-07-11 14:50 Yu's Garden 阅读(2293) 评论(1) 推荐(1)

LeetCode: Unique Paths II 解题报告

摘要： Unique Paths IITotal Accepted:31019Total Submissions:110866My SubmissionsQuestionSolutionFollow up for "Unique Paths":Now consider if some obstacles a... 阅读全文

posted @ 2015-04-08 03:04 Yu's Garden 阅读(615) 评论(0) 推荐(0)

LeetCode: Unique Paths 解题报告

摘要： A robot is located at the top-left corner of amxngrid (marked 'Start' in the diagram below).The robot can only move either down or right at any point ... 阅读全文

posted @ 2015-04-08 02:38 Yu's Garden 阅读(774) 评论(0) 推荐(0)

LeetCode: Remove Nth Node From End of List 解题报告

摘要： Remove Nth Node From End of ListTotal Accepted:46720Total Submissions:168596My SubmissionsQuestionSolutionGiven a linked list, remove thenthnode from ... 阅读全文

posted @ 2015-04-04 15:25 Yu's Garden 阅读(851) 评论(0) 推荐(0)

LeetCode: Convert Sorted List to Binary Search Tree 解题报告

摘要： Convert Sorted List to Binary Search TreeGiven a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.... 阅读全文

posted @ 2015-04-04 13:48 Yu's Garden 阅读(1682) 评论(0) 推荐(0)

LeetCode: Path Sum II 解题报告

摘要： Path Sum IIGiven a binary tree and a sum, find all root-to-leaf paths where each path's sum equals the given sum.For example:Given the below binary tr... 阅读全文

posted @ 2015-03-30 09:17 Yu's Garden 阅读(680) 评论(0) 推荐(0)

lintcode: k Sum 解题报告

摘要： K SUMMy Submissionshttp://www.lintcode.com/en/problem/k-sum/题目来自九章算法13%AcceptedGiven n distinct positive integers, integer k (k = 0) { ... 阅读全文

posted @ 2015-02-08 08:40 Yu's Garden 阅读(8547) 评论(1) 推荐(1)

LeetCode: Unique Binary Search Trees II 解题报告

摘要： Unique Binary Search Trees IIGiven n, generate all structurally unique BST's (binary search trees) that store values 1...n.For example,Given n = 3, yo... 阅读全文

posted @ 2015-01-28 16:40 Yu's Garden 阅读(2426) 评论(0) 推荐(1)

【面经】Epic: 数据库去重

摘要：题目是：有2个10G的数据库，存储了一些string. 2者之间有一些重复的数据。请把它们合并为一个数据库，并且去除重复。限制：内存是4G例如: DB1: cmu, ucb, stanford, nyu DB2: ucsb, ucb, ucsd, cmu.两者合并后，应该是: DB: cmu,... 阅读全文

posted @ 2015-01-23 17:23 Yu's Garden 阅读(1537) 评论(0) 推荐(1)

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