coobj2008-优快云博客

转载栈增长方向与大端/小端问题

转载地址：http://www.cnblogs.com/xkfz007/archive/2012/06/22/2558935.html

2014-08-20 20:28:02 576

转载浅谈C/C++的浮点数在内存中的存储方式

原文地址： C/C++浮点数在内存中的存储方式任何数据在内存中都是以二进制的形式存储的，例如一个short型数据1156，其二进制表示形式为00000100 10000100。则在Intel CPU架构的系统中，存放方式为 10000100(低地址单元) 00

2014-08-19 16:35:33 496

转载 Linux下二进制文件的查看和编辑

http://blog.youkuaiyun.com/hansel/article/details/5097262

2014-07-10 20:04:53 586

转载 SSH不输入密码连接远程Linux主机

原文地址：http://blog.chinaunix.net/uid-25266990-id-2600515.html

2014-06-26 14:57:05 503

转载升级Ubuntu 12.04下的gcc到4.7

原文地址：http://blog.chinaunix.net/uid-23381466-id-3475968.html

2014-06-26 10:03:32 359

原创 LeetCode Sudoku Solver

题目：Write a program to solve a Sudoku puzzle by filling the empty cells.Empty cells are indicated by the character '.'.You may assume that there will be only one unique solution.

2014-06-07 15:01:49 308

原创 LeetCode Next Permutation

题目：Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers.If such arrangement is not possible, it must rearrange it as the lowest

2014-06-07 10:55:14 320

原创 LeetCode Binary Tree Maximum Path Sum

题目：Given a binary tree, find the maximum path sum.The path may start and end at any node in the tree.For example:Given the below binary tree, 1 / \ 2 3Ret

2014-06-04 22:16:46 375

原创 LeetCode Trapping Rain Water

题目：Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining.For example, Given [0,1,0,2,1,0,1,3

2014-06-04 20:49:14 344

原创 LeetCode Wildcard Matching

题目：Implement wildcard pattern matching with support for '?' and '*'.'?' Matches any single character.'*' Matches any sequence of characters (including the empty sequence).The matching shoul

2014-06-04 16:52:15 354

原创 LeetCode Decode Ways

题目：A message containing letters from A-Z is being encoded to numbers using the following mapping:'A' -> 1'B' -> 2...'Z' -> 26Given an encoded message containing digits, determine the

2014-06-02 20:43:09 505

原创 LeetCode Valid Number

题目：Validate if a given string is numeric.Some examples:"0" => true" 0.1 " => true"abc" => false"1 a" => false"2e10" => trueNote: It is intended for the problem statement to b

2014-06-02 17:27:42 508

原创 LeetCode Text Justification

题目：Given an array of words and a length L, format the text such that each line has exactly L characters and is fully (left and right) justified.You should pack your words in a greedy approac

2014-06-02 11:54:29 431

原创 LeetCode Interleaving String

题目：Given s1, s2, s3, find whether s3 is formed by the interleaving of s1 and s2.For example,Given:s1 = "aabcc",s2 = "dbbca",When s3 = "aadbbcbcac", return true.When s3 = "aadbbba

2014-06-01 15:43:43 444

原创 LeetCode Candy

题目：There are N children standing in a line. Each child is assigned a rating value.You are giving candies to these children subjected to the following requirements:Each child must have at

2014-06-01 10:57:40 423

原创 LeetCode Substring with Concatenation of All Words

题目：You are given a string, S, and a list of words, L, that are all of the same length. Find all starting indices of substring(s) in S that is a concatenation of each word in L exactly once and w

2014-05-31 15:49:47 456

原创 LeetCode String to Integer (atoi)

题目：Implement atoi to convert a string to an integer.Hint: Carefully consider all possible input cases. If you want a challenge, please do not see below and ask yourself what are the possible

2014-05-29 22:16:16 469

转载 LeetCode Regular Expression Matching

题目：Implement regular expression matching with support for '.' and '*'.'.' Matches any single character.'*' Matches zero or more of the preceding element.The matching should cover the entire

2014-05-29 21:20:56 527

原创 LeetCode Reverse Nodes in k-Group

题目：Given a linked list, reverse the nodes of a linked list k at a time and return its modified list.If the number of nodes is not a multiple of k then left-out nodes in the end should remain

2014-05-29 17:15:30 448

原创 LeetCode Letter Combinations of a Phone Number

题目：Given a digit string, return all possible letter combinations that the number could represent.A mapping of digit to letters (just like on the telephone buttons) is given below.Input

2014-05-29 12:07:26 471

原创 LeetCode Merge k Sorted Lists

Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity.方法1：使用最小堆，

2014-05-28 21:40:01 465

转载 priority_queue用法（转载）

关于priority_queue1,关于STL中的priority_queue:确定用top()查看顶部元素时,该元素是具有最高优先级的一个元素. 调用pop()删除之后,将促使下一个元素进入该位置. 2,如同stack和queue,priority_queue是一个基于基本序列容器进行构建的适配器,默认的序列器是vector. 模板原型：priority_queue

2014-05-28 21:21:10 545

原创 LeetCode Divide Two Integers

题目：Divide two integers without using multiplication, division and mod operator.

2014-05-28 18:02:34 467

原创 LeetCode Implement strStr()

题目：Implement strStr().Returns a pointer to the first occurrence of needle in haystack, or null if needle is not part of haystack.

2014-05-28 16:20:26 455

原创 LeetCode Multiply Strings

题目：Given two numbers represented as strings, return multiplication of the numbers as a string.Note: The numbers can be arbitrarily large and are non-negative.

2014-05-28 15:18:28 438

原创 LeetCode Combination Sum II

题目：Given a collection of candidate numbers (C) and a target number (T), find all unique combinations in C where the candidate numbers sums to T.Each number in C may only be used once in th

2014-05-28 11:34:06 261

原创 LeetCode Combination Sum

题目：Given a set of candidate numbers (C) and a target number (T), find all unique combinations in C where the candidate numbers sums to T.The same repeated number may be chosen from C unlim

2014-05-28 10:17:52 339

原创 LeetCode Permutations II

题目：Given a collection of numbers that might contain duplicates, return all possible unique permutations.For example,[1,1,2] have the following unique permutations:[1,1,2], [1,2,1], and

2014-05-27 22:20:01 292

原创 LeetCode Permutations

题目：Given a collection of numbers, return all possible permutations.For example,[1,2,3] have the following permutations:[1,2,3], [1,3,2], [2,1,3], [2,3,1], [3,1,2], and [3,2,1].class

2014-05-27 21:38:04 296

原创 LeetCode Anagrams

题目：Given an array of strings, return all groups of strings that are anagrams.Note: All inputs will be in lower-case.

2014-05-27 21:12:27 266

原创 LeetCode N-Queens II

题目：Follow up for N-Queens problem.Now, instead outputting board configurations, return the total number of distinct solutions.

2014-05-27 20:35:09 313

原创 LeetCode N-Queens

题目：The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other.Given an integer n, return all distinct solutions to the n-queens

2014-05-27 20:27:47 311

原创 LeetCode Merge Intervals

题目：Given a collection of intervals, merge all overlapping intervals.For example,Given [1,3],[2,6],[8,10],[15,18],return [1,6],[8,10],[15,18]./** * Definition for an interval. * struc

2014-05-27 17:39:17 248

原创 LeetCode Insert Interval

题目：Given a set of non-overlapping intervals, insert a new interval into the intervals (merge if necessary).You may assume that the intervals were initially sorted according to their start ti

2014-05-27 16:38:20 302

原创 LeetCode Permutation Sequence

题目：The set [1,2,3,…,n] contains a total of n! unique permutations.By listing and labeling all of the permutations in order,We get the following sequence (ie, for n = 3):"123""132""21

2014-05-27 10:46:51 406

原创 LeetCode Rotate List

题目：Given a list, rotate the list to the right by k places, where k is non-negative.For example:Given 1->2->3->4->5->NULL and k = 2,return 4->5->1->2->3->NULL.

2014-05-27 09:38:49 241

原创 LeetCode Simplify Path

题目：Given an absolute path for a file (Unix-style), simplify it.For example,path = "/home/", => "/home"path = "/a/./b/../../c/", => "/c"click to show corner cases.Corner Cases:

2014-05-26 22:13:04 274

原创 LeetCode Minimum Window Substring

题目：Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n).For example,S = "ADOBECODEBANC"T = "ABC"Minimum windo

2014-05-26 20:58:19 319

原创 LeetCode Word Search

题目：Given a 2D board and a word, find if the word exists in the grid.The word can be constructed from letters of sequentially adjacent cell, where "adjacent" cells are those horizontally or v

2014-05-26 16:28:47 274

原创 LeetCode Search in Rotated Sorted Array II

题目：Follow up for "Search in Rotated Sorted Array":What if duplicates are allowed?Would this affect the run-time complexity? How and why?Write a function to determine if a given target

2014-05-24 17:03:12 269

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