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[CareerCup] 18.2 Shuffle Cards 洗牌
18.2 Write a method to shuffle a deck of cards. It must be a perfect shuffle—in other words, each of the 52! permutations of the deck has to be equall ...
分类:其他好文   时间:2016-05-03 01:55:01    阅读次数:156
[CareerCup] 18.1 Add Two Numbers 两数相加
18.1 Write a function that adds two numbers. You should not use + or any arithmetic operators. 这道题让我们实现两数相加,但是不能用加号或者其他什么数学运算符号,那么我们只能回归计算机运算的本质,位操作Bi ...
分类:其他好文   时间:2016-05-02 10:26:30    阅读次数:146
[CareerCup] 17.14 Unconcatenate Words 断词
17.14 Oh, no! You have just completed a lengthy document when you have an unfortunate Find/Replace mishap. You have accidentally removed all spaces, p ...
分类:其他好文   时间:2016-04-30 12:47:05    阅读次数:210
[CareerCup] 17.10 Encode XML 编码XML
17.10 Since XML is very verbose, you are given a way of encoding it where each tag gets mapped to a pre-defined integer value. The language/grammar is ...
分类:Web程序   时间:2016-04-27 12:49:10    阅读次数:184
[CareerCup] 17.9 Word Frequency in a Book 书中单词频率
17.9 Design a method to find the frequency of occurrences of any given word in a book. 这道题让我们找书中单词出现的频率,那么首先需要搞清楚的问题是,只需要统计一个单词,还是多个单词。如果是一个单词的话,那直接就遍 ...
分类:其他好文   时间:2016-04-26 11:01:01    阅读次数:126
[CareerCup] 17.8 Contiguous Sequence with Largest Sum 连续子序列之和最大
17.8 You are given an array of integers (both positive and negative). Find the contiguous sequence with the largest sum. Return the sum. LeetCode上的原题, ...
分类:其他好文   时间:2016-04-26 09:35:58    阅读次数:163
[CareerCup] 17.6 Sort Array 排列数组
17.6 Given an array of integers, write a method to find indices m and n such that if you sorted elements m through n, the entire array would be sorted ...
分类:编程语言   时间:2016-04-23 16:29:08    阅读次数:160
[CareerCup] 17.2 Tic Tac Toe 井字棋游戏
17.2 Design an algorithm to figure out if someone has won a game oftic-tac-toe. 这道题让我们判断玩家是否能赢井字棋游戏,有下面几点需要考虑: 1. 判断是否能赢hasWon函数是调用一次还是多次,如果是多次,我们可能为了 ...
分类:其他好文   时间:2016-04-19 12:07:53    阅读次数:272
[CareerCup] 17.1 Swap Number In Place 互换位置
17.1 Write a function to swap a number in place (that is, without temporary variables). 这道题让我们交换两个数,但是不能用额外空间,那么我们可以先做差值,存入a中,然后再加上b,存入b中,那么此时的b即为原来的a ...
分类:其他好文   时间:2016-04-18 06:24:17    阅读次数:119
[CareerCup] 16.6 Synchronized Method 同步方法
16.6 You are given a class with synchronized method A and a normal method B. If you have two threads in one instance of a program, can they both execu ...
分类:其他好文   时间:2016-04-17 13:16:51    阅读次数:149
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