Given two wordsword1andword2, find the minimum number of steps required to convertword1toword2. (each operation is counted as 1 step.)You have the fol...
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其他好文 时间：
2014-07-06 19:31:04
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181
SubsetsTotal Accepted:13267Total Submissions:48509My SubmissionsGiven a set of distinct integers,S, return all possible subsets.Note:Elements in a sub...
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其他好文 时间：
2014-07-06 17:50:21
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170
Givennnon-negative integersa1,a2, ...,an, where each represents a point at coordinate (i,ai).nvertical lines are drawn such that the two endpoints of ...
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其他好文 时间：
2014-07-06 17:44:30
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181
Divide two integers without using multiplication, division and mod operator.思路：不能使用乘法除法以及取模运算来计算两个数相除。主要做法就是，将因子不断乘2（向左移位即可实现），同时结果从1不断移位加倍，等到除数大于被除数一...
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其他好文 时间：
2014-07-06 15:34:24
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197
Update: July 4, 2014 Chap 5： At the beginning, he mentioned that: recursion is a divide-and-conquer method. Although many algorithms can be solved in ...
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其他好文 时间：
2014-07-06 15:24:36
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213
Given a strings1, we may represent it as a binary tree by partitioning it to two non-empty substrings recursively.Below is one possible representation...
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其他好文 时间：
2014-07-06 13:57:54
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155
Divide two integers without using multiplication, division and mod operator.不用乘、除、求余操作，返回两整数相除的结果，结果也是整数。假设除数是2，相除的商就是被除数二进制表示向右移动一位。假设被除数是a，除数是b，因为不知...
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其他好文 时间：
2014-07-05 20:37:18
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193
Determine whether an integer is a palindrome. Do this without extra space.
Some
hints:
Could negative integers be palindromes? (ie, -1)
If you are thinking of converting the integer to string...
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其他好文 时间：
2014-07-05 10:44:29
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227
The gray code is a binary numeral system where two successive values differ in only one bit.
Given a non-negative integer n representing the total number of bits in the code, print the sequence of...
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其他好文 时间：
2014-07-04 07:35:58
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215
