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leetcode:Combination Sum
Combination Sum 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 unl...
分类:其他好文   时间:2015-08-21 17:10:33    阅读次数:151
LeetCode187——Repeated DNA Sequences
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 identify repeated sequences within the DNA. Wri...
分类:其他好文   时间:2015-08-19 00:36:15    阅读次数:140
leetcode_Repeated DNA Sequences
我们首先来看字母 ”A" "C" “G" "T" 的ASCII码,分别是65, 67, 71, 84,二进制表示为 1000001, 1000011, 1000111, 1010100。可以看到它们的后三位是不同,所以用后三位就可以区分这四个字母。一个字母用3bit来区分,那么10个字母用30bit就够了。用int的第29~0位分表表示这0~9个字符,然后把30bit转化为int作为这个子串的key,放入到HashTable中,以判断该子串是否出现过。...
分类:其他好文   时间:2015-08-12 11:44:46    阅读次数:109
[notes] some code tips
genericizing-codePrefer functionality over implementationIt’s never too late to refactorWatch out for repeated code across different typesOne protocol...
分类:其他好文   时间:2015-08-06 01:57:55    阅读次数:104
[leedcode 187] Repeated DNA Sequences
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 ...
分类:其他好文   时间:2015-08-03 00:51:18    阅读次数:157
Combination Sum
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 unlimited numb...
分类:其他好文   时间:2015-07-25 20:00:54    阅读次数:138
查找出现次数大于n/k的重复元素
本文是对一篇英文论文的总结:Finding Repeated Elements。想看原文,请Google之。这个问题的简单形式是“查找出现次数大于n/2的重复元素”。我们先从简单问题开始,然后再做扩展。1.查找出现次数大于n/2的重复元素 《编程之美》中有同样的一道题《寻找发帖水王》,具体思路是每....
分类:其他好文   时间:2015-07-23 17:27:18    阅读次数:155
android中nterpolator的方法详细
android:interpolatorInterpolator 被用来修饰动画效果,定义动画的变化率,可以使存在的动画效果accelerated(加速),decelerated(减速),repeated(重复),bounced(弹跳)等。android中的文档内容如下:AccelerateDece...
分类:移动开发   时间:2015-07-21 16:50:20    阅读次数:267
[CareerCup] 1.5 Compress String 压缩字符串
1.5 Implement a method to perform basic string compression using the counts of repeated characters. For example, the string aabcccccaaa would become a...
分类:其他好文   时间:2015-07-17 07:07:29    阅读次数:134
LeetCode-Combination Sum
问题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 unlimited number of...
分类:其他好文   时间:2015-07-14 22:38:27    阅读次数:162
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