小白兔云

2019年4月28日

摘要： You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed. All houses at this place are ar 阅读全文

posted @ 2019-04-28 14:20 小白兔云阅读(118) 评论(0) 推荐(0)

leetcode [215]Kth Largest Element in an Array

摘要： Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element. Example 阅读全文

posted @ 2019-04-28 11:12 小白兔云阅读(130) 评论(0) 推荐(0)

leetcode [211] Add and Search Word - Data structure design

摘要： Design a data structure that supports the following two operations: search(word) can search a literal word or a regular expression string containing o 阅读全文

posted @ 2019-04-28 10:36 小白兔云阅读(131) 评论(0) 推荐(0)

2019年4月27日

Java中的代理模式

摘要：代理模式在代理模式里面，使用代理类控制对目标类的访问，通过代理对象控制对原对象的访问。这里的代理对象其实就是相当于是生活中的中介。举个例子来说明：假如说我现在想买一辆二手车，虽然我可以自己去找车源，做质量检测等一系列的车辆过户流程，但是这确实太浪费我得时间和精力了。我只是想买一辆车而已为什么我还阅读全文

posted @ 2019-04-27 18:08 小白兔云阅读(176) 评论(0) 推荐(0)

2019年4月26日

leetcode [208]Implement Trie (Prefix Tree)

摘要： Implement a trie with insert, search, and startsWith methods. Example: Trie trie = new Trie(); trie.insert("apple"); trie.search("apple"); // returns 阅读全文

posted @ 2019-04-26 15:09 小白兔云阅读(167) 评论(0) 推荐(0)

leetcode [210]Course Schedule II

摘要： There are a total of n courses you have to take, labeled from 0 to n-1. Some courses may have prerequisites, for example to take course 0 you have to 阅读全文

posted @ 2019-04-26 11:49 小白兔云阅读(126) 评论(0) 推荐(0)

leetcode [209]Minimum Size Subarray Sum

摘要： Given an array of n positive integers and a positive integer s, find the minimal length of a contiguous subarray of which the sum ≥ s. If there isn't 阅读全文

posted @ 2019-04-26 11:18 小白兔云阅读(135) 评论(0) 推荐(0)

2019年4月25日

leetcode [179]Largest Number

摘要： Given a list of non negative integers, arrange them such that they form the largest number. Example 1: Example 2: 题目大意：返回非负数数组数字组成的最大数字解法：利用java中自带阅读全文

posted @ 2019-04-25 17:33 小白兔云阅读(124) 评论(0) 推荐(0)

leetcode [187]Repeated DNA Sequences

摘要： All DNA is composed of a series of nucleotides abbreviated as A, C, G, and T, for example: "ACGAATTCCG". When studying DNA, it is sometimes useful to 阅读全文

posted @ 2019-04-25 17:30 小白兔云阅读(127) 评论(0) 推荐(0)

leetcode [207]Course Schedule

摘要： There are a total of n courses you have to take, labeled from 0 to n-1. Some courses may have prerequisites, for example to take course 0 you have to 阅读全文

posted @ 2019-04-25 17:17 小白兔云阅读(144) 评论(0) 推荐(0)

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