Given a digit string, return all possible letter combinations that the number could represent.A mapping of digit to letters (just like on the telephon... ...
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其他好文 时间：
2016-12-07 23:37:52
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242
题目描述 The cows have opened a new business, and Farmer John wants to see how well they are doing. The business has been running for N (1 <= N <= 100,000 ...
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其他好文 时间：
2016-12-04 19:46:57
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274
Given a non-negative number represented as a singly linked list of digits, plus one to the number. The digits are stored such that the most significan ...
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其他好文 时间：
2016-12-03 15:10:46
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219
Solution 1: Bit Manipulation use Integer.bitCount() Solution 2: Backtracking, 非常精妙之处在于用了两个数组来帮助generate digit（例如：1011 -> 11） ...
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其他好文 时间：
2016-12-02 08:02:59
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250
500个英语常用表达1. a big headache令人头痛的事情2. a fraction of 一部分3. a matter of concern 焦点4. a series of 一系列,一连串above all 首先,尤其是5. absent from不在,缺席6. abundant in ...
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其他好文 时间：
2016-12-01 14:40:14
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254
JSON can only represent a subset of the types supported by BSON. To preserve type information, MongoDB adds the following extensions to the JSON forma ...
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数据库 时间：
2016-11-30 22:05:47
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293
题目： A binary watch has 4 LEDs on the top which represent the hours (0-11), and the 6 LEDs on the bottom represent the minutes (0-59). Each LED represe ...
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编程语言 时间：
2016-11-29 23:02:49
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175
O(N^2)解法： DP dp[i] represent the maximum product of breaking up integer i O(N)解法： the best factor is 3. we keep breaking n into 3's until n gets small ...
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其他好文 时间：
2016-11-24 09:29:32
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202
JNI使用的是改良的UTF-8格式的Strings。 以下文档来自官方： Modified UTF-8 Strings The JNI uses modified UTF-8 strings to represent various string types. Modified UTF-8 stri ...
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其他好文 时间：
2016-11-24 08:04:58
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376
