Black_Knight

2016年12月21日

LeetCode 462. Minimum Moves to Equal Array Elements II

摘要： Given a non-empty integer array, find the minimum number of moves required to make all array elements equal, where a move is incrementing a selected e 阅读全文

posted @ 2016-12-21 19:00 Black_Knight 阅读(277) 评论(0) 推荐(0) 编辑

LeetCode 477. Total Hamming Distance

摘要： The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Now your job is to find the total 阅读全文

posted @ 2016-12-21 10:50 Black_Knight 阅读(1412) 评论(0) 推荐(0) 编辑

2016年11月30日

LeetCode 453. Minimum Moves to Equal Array Elements

摘要： Given a non-empty integer array of size n, find the minimum number of moves required to make all array elements equal, where a move is incrementing n 阅读全文

posted @ 2016-11-30 17:21 Black_Knight 阅读(206) 评论(0) 推荐(0) 编辑

LeetCode 392. Is Subsequence

摘要： Given a string s and a string t, check if s is subsequence of t. You may assume that there is only lower case English letters in both s and t. t is po 阅读全文

posted @ 2016-11-30 14:13 Black_Knight 阅读(573) 评论(0) 推荐(0) 编辑

2016年11月29日

LeetCode 338. Counting Bits

摘要： Given a non negative integer number num. For every numbers i in the range 0 ≤ i ≤ num calculate the number of 1's in their binary representation and r 阅读全文

posted @ 2016-11-29 22:52 Black_Knight 阅读(1161) 评论(0) 推荐(0) 编辑

LeetCode 213. House Robber II

摘要： Note: This is an extension of House Robber. After robbing those houses on that street, the thief has found himself a new place for his thievery so tha 阅读全文

posted @ 2016-11-29 22:03 Black_Knight 阅读(397) 评论(0) 推荐(0) 编辑

LeetCode 198. House Robber

摘要： You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed, the only constraint stopping yo 阅读全文

posted @ 2016-11-29 20:41 Black_Knight 阅读(465) 评论(0) 推荐(0) 编辑

HashMap按键排序和按值排序

摘要：对map集合进行排序今天做统计时需要对X轴的地区按照地区代码（areaCode）进行排序，由于在构建XMLData使用的map来进行数据统计的，所以在统计过程中就需要对map进行排序。一、简单介绍Map 在讲解Map排序之前，我们先来稍微了解下map。map是键值对的集合接口，它的实现类主要包括阅读全文

posted @ 2016-11-29 13:13 Black_Knight 阅读(104487) 评论(1) 推荐(4) 编辑

2016年11月24日

LeetCode 91. Decode Ways

摘要： 91. Decode Ways A message containing letters from A-Z is being encoded to numbers using the following mapping: 91. Decode Ways A message containing le 阅读全文

posted @ 2016-11-24 09:54 Black_Knight 阅读(195) 评论(0) 推荐(0) 编辑

2016年11月16日

LeetCode 459. Repeated Substring Pattern

摘要： Given a non-empty string check if it can be constructed by taking a substring of it and appending multiple copies of the substring together. You may a 阅读全文

posted @ 2016-11-16 21:46 Black_Knight 阅读(972) 评论(0) 推荐(0) 编辑

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