题目: Given a string, find the length of the longest
substring without repeating characters. For example, the longest substring
without repeating letter...
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其他好文 时间:
2014-04-30 21:15:32
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511
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:
2014-04-30 03:52:56
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411
思路很简单,就是通过map对应,随后通过递归调用,这里遇到了个问题就是开始用string
&re
,然后往里传re+c是不可以的,本来想省点内存,结果不行,所以只能值传递了,后来才知道string竟然还有push_back()和pop_back(),服了。
1 class Solution { 2 ...
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其他好文 时间:
2014-04-29 19:31:07
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524
DescriptionLetxandybe two strings over some finite
alphabetA. We would like to transformxintoyallowing only operations given
below:Deletion:a letter i...
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其他好文 时间:
2014-04-29 16:22:00
阅读次数:
450
LeetCode:Combinations这篇博客中给出了不包含重复元素求组合的5种解法。我们在这些解法的基础上修改以支持包含重复元素的情况。对于这种情况,首先肯定要对数组排序,以下不再强调修改算法1:按照求包含重复元素集合子集的方法LeetCode:Subsets
II算法1的解释,我们知道:若当...
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其他好文 时间:
2014-04-28 14:00:43
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717
When Vito Maretti writes an important letter he encrypts it. His method is not very reliable but it’s enough to make any detective understand nothing in that letter. Sheriff doesn’t like such state
...
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其他好文 时间:
2014-04-27 21:45:00
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459
Letter Combinations of a Phone Number, leetcode...
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其他好文 时间:
2014-04-27 21:28:59
阅读次数:
323