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原创 Java 中String的HashCode计算方法

/** * Returns a hash code for this string. The hash code for a * String object is computed as * * s[0]*31^(n-1) + s[1]*31^(n-2) + ... + s[n-1] * * usi

2014-05-13 21:33:11 7576

原创 [LeetCode] Two Sum

描述Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices of the two numbers such that they add up to the target, w

2014-05-12 21:35:21 436

原创 [LeetCode] Longest Consecutive Sequence

描述Given an unsorted array of integers, find the length of the longest consecutive elements sequence.For example, Given [100, 4, 200, 1, 3, 2], The longest consecutive elements sequence is [1,2,

2014-05-12 21:15:11 363

转载 Top 10 Algorithms for Coding Interview 面试十大算法总结

The following are top 10 algorithms related topics for coding interviews. As understanding those concepts requires much more effort, this list below only serves as an introduction. They are viewed fro

2014-04-26 22:39:20 666

原创 [leetCode] LRU Cache (Java)

Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations: get and set.get(key) – Get the value (will always be positive) of the key if

2014-04-26 20:52:30 997

原创 [leetcode ]Search in Rotated Sorted Array

* Search in Rotated Sorted Array* * Suppose a sorted array is rotated at some pivot unknown to you beforehand.(i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 8 0 1 2 3. 6 7 8 0 1 2 3 4 5.You

2014-04-25 14:54:28 410

原创如何不用循环打印数字1到n

题目：如何打印数字1-到n，qian ti

2014-04-24 22:44:45 1907

原创 [leetcode] Remove Duplicates from Sorted Array

描述Given a sorted array, remove the duplicates in place such that each element appear only onceand return the new length.Do not allocate extra space for another array, you must do this in place w

2014-04-24 12:36:00 417

原创 [LeetCode] Longest Common Prefix (LCP)

Write a function to find the longest common prefix string amongst an array of strings.模拟法，先选取第一个字符串，之后依次和后面的字符串得出LCP

2014-04-23 15:55:12 438

原创 [LeetCode] 4Sum

Question : Given an array S of n integers, are there elements a, b, c, and d in S such that a + b + c + d = target? Find all unique quadruplets in the array which gives the sum of target.Note:Elem

2014-04-23 15:03:36 392

原创 [Leetcode] Reverse Words in a String

Reverse Words in a StringGiven an input string, reverse the string word by word.

2014-04-23 14:44:47 464

原创 [LeetCode] Longest Palindromic Substring 最长回文子串

Given a string S, find the longest palindromic substring in S. You may assume that the maximum length of S is 1000, and there exists one unique longest palindromic substring.思路用一个指针从0遍历到s.size()-1

2014-04-23 14:16:44 446

转载微软数据结构+算法面试100题

2014-04-18 13:13:30 715

原创 CareerBowl 博客开通了

全方位揭示微软，苹果，谷歌，亚马逊等IT名企招聘秘密，将是程序员

2014-04-18 13:03:34 468

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