fatttcat

2018年12月24日

摘要： Design a logger system that receive stream of messages along with its timestamps, each message should be printed if and only if it is not printed in t 阅读全文

posted @ 2018-12-24 09:06 fatttcat 阅读(138) 评论(0) 推荐(0) 编辑

720. Longest Word in Dictionary - Easy

摘要： Given a list of strings words representing an English Dictionary, find the longest word in words that can be built one character at a time by other wo 阅读全文

posted @ 2018-12-24 08:51 fatttcat 阅读(145) 评论(0) 推荐(0) 编辑

760. Find Anagram Mappings - Easy

摘要： Given two lists Aand B, and B is an anagram of A. B is an anagram of A means B is made by randomizing the order of the elements in A. We want to find 阅读全文

posted @ 2018-12-24 07:41 fatttcat 阅读(101) 评论(0) 推荐(0) 编辑

2018年12月22日

734. Sentence Similarity - Easy

摘要： Given two sentences words1, words2 (each represented as an array of strings), and a list of similar word pairs pairs, determine if two sentences are s 阅读全文

posted @ 2018-12-22 18:17 fatttcat 阅读(128) 评论(0) 推荐(0) 编辑

Rainbow Sort - Medium

摘要： Given an array of balls, where the color of the balls can only be Red, Green or Blue, sort the balls such that all the Red balls are grouped on the le 阅读全文

posted @ 2018-12-22 15:35 fatttcat 阅读(168) 评论(0) 推荐(0) 编辑

692. Top K Frequent Words - Medium

摘要： Given a non-empty list of words, return the k most frequent elements. Your answer should be sorted by frequency from highest to lowest. If two words h 阅读全文

posted @ 2018-12-22 07:35 fatttcat 阅读(120) 评论(0) 推荐(0) 编辑

2018年12月20日

347. Top K Frequent Elements - Medium

摘要： Given a non-empty array of integers, return the k most frequent elements. Example 1: Input: nums = [1,1,1,2,2,3], k = 2 Output: [1,2] Example 2: Input 阅读全文

posted @ 2018-12-20 10:01 fatttcat 阅读(156) 评论(0) 推荐(0) 编辑

12. Integer to Roman - Medium

摘要： Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M. For example, two is written as II in Roman numeral, just two one's 阅读全文

posted @ 2018-12-20 07:43 fatttcat 阅读(144) 评论(0) 推荐(0) 编辑

13. Roman to Integer - Easy

摘要： Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M. For example, two is written as II in Roman numeral, just two one's 阅读全文

posted @ 2018-12-20 06:23 fatttcat 阅读(129) 评论(0) 推荐(0) 编辑

2018年12月19日

109. Convert Sorted List to Binary Search Tree - Medium

摘要： Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST. For this problem, a height-balanced bina 阅读全文

posted @ 2018-12-19 19:14 fatttcat 阅读(80) 评论(0) 推荐(0) 编辑

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