zengzy - 博客园

2015年12月20日

摘要： 198. House RobberTotal Accepted:45873Total Submissions:142855Difficulty:EasyYou are a professional robber planning to rob houses along a street. Each ... 阅读全文

posted @ 2015-12-20 11:21 zengzy 阅读(240) 评论(0) 推荐(1) 编辑

303. Range Sum Query - Immutable

摘要： 303. Range Sum Query - ImmutableTotal Accepted:10632Total Submissions:44726Difficulty:EasyGiven an integer arraynums, find the sum of the elements bet... 阅读全文

posted @ 2015-12-20 10:59 zengzy 阅读(190) 评论(0) 推荐(1) 编辑

89. Gray Code

摘要： 89. Gray CodeTotal Accepted:49119Total Submissions:142633Difficulty:MediumThe gray code is a binary numeral system where two successive values differ ... 阅读全文

posted @ 2015-12-20 10:48 zengzy 阅读(194) 评论(0) 推荐(1) 编辑

2015年12月19日

22. Generate Parentheses

摘要： 22. Generate ParenthesesTotal Accepted:70039Total Submissions:203043Difficulty:MediumGivennpairs of parentheses, write a function to generate all comb... 阅读全文

posted @ 2015-12-19 21:34 zengzy 阅读(131) 评论(0) 推荐(0) 编辑

Remove Duplicate Letters

摘要： 316. Remove Duplicate LettersTotal Accepted:2367Total Submissions:12388Difficulty:MediumGiven a string which contains only lowercase letters, remove d... 阅读全文

posted @ 2015-12-19 20:17 zengzy 阅读(224) 评论(0) 推荐(1) 编辑

155. Min Stack

摘要： 155. Min StackTotal Accepted:54402Total Submissions:259750Difficulty:EasyDesign a stack that supports push, pop, top, and retrieving the minimum eleme... 阅读全文

posted @ 2015-12-19 16:50 zengzy 阅读(133) 评论(0) 推荐(1) 编辑

232. Implement Queue using Stacks,225. Implement Stack using Queues

摘要： 232. Implement Queue using StacksTotal Accepted:27024Total Submissions:79793Difficulty:EasyImplement the following operations of a queue using stacks.... 阅读全文

posted @ 2015-12-19 16:32 zengzy 阅读(155) 评论(0) 推荐(1) 编辑

Different Ways to Add Parentheses

摘要： 241. Different Ways to Add ParenthesesTotal Accepted:13500Total Submissions:43882Difficulty:MediumGiven a string of numbers and operators, return all ... 阅读全文

posted @ 2015-12-19 16:07 zengzy 阅读(193) 评论(0) 推荐(0) 编辑

233. Number of Digit One

摘要： 233. Number of Digit OneTotal Accepted:13442Total Submissions:59263Difficulty:MediumGiven an integer n, count the total number of digit 1 appearing in... 阅读全文

posted @ 2015-12-19 14:27 zengzy 阅读(137) 评论(0) 推荐(1) 编辑

2015年12月18日

Permutation Sequence

摘要： Permutation SequenceTotal Accepted:44618Total Submissions:187104Difficulty:MediumThe set[1,2,3,…,n]contains a total ofn! unique permutations.By listin... 阅读全文

posted @ 2015-12-18 23:57 zengzy 阅读(136) 评论(0) 推荐(0) 编辑

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