Implement a trie with insert, search, and startsWith methods.
Note:
You may assume that all inputs are consist of lowercase letters a-z.
前缀查找树,简单的可以实现为一种26叉树。需要在节点上增加一个字段,标明该节点是否是一个单词,还是仅仅是单词的前缀。代码...
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其他好文 时间:
2015-06-27 16:26:34
阅读次数:
142
本篇文章由:http://xinpure.com/css3-box-model-to-implement-a-three-column-layout/使用 Position 绝对定位也是可以实现三栏布局的,然而使用 CSS3 的盒模型却显得更简单、更灵活CSS3盒模型display: -webkit...
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Web程序 时间:
2015-06-26 17:47:41
阅读次数:
190
Implement a basic calculator to evaluate a simple expression string.The expression string contains only non-negative integers, +, -, *, / operators an...
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其他好文 时间:
2015-06-26 00:23:20
阅读次数:
135
Pow(x, n)Implement pow(x,n).https://leetcode.com/problems/powx-n/注意x和n都可能是负数。递归求解,比如求3的4次方,可以拆成3的2次方相乘;3的5次就是3^2相乘再乘2。 1 /** 2 * @param {number} x 3 ....
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编程语言 时间:
2015-06-26 00:10:03
阅读次数:
171
插话:只写了几个连续的博客,博客排名不再是实际“远在千里之外”该。我们已经进入2一万内。再接再厉。油!Design and implement a data structure for Least Recently Used (LRU) cache. It should support the fo...
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系统相关 时间:
2015-06-25 16:59:59
阅读次数:
131
Wildcard Matching
Implement wildcard pattern matching with support for '?' and '*'.
'?' Matches any single character.
'*' Matches any sequence of characters (including the empty sequence).
The ...
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其他好文 时间:
2015-06-25 15:35:29
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123
Implement the following operations of a stack using queues.push(x) -- Push element x onto stack.pop() -- Removes the element on top of the stack.top()...
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其他好文 时间:
2015-06-25 13:53:08
阅读次数:
91
Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations:getandset.get(key)- Get the valu...
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系统相关 时间:
2015-06-25 13:37:40
阅读次数:
152
Description:Implement the following operations of a stack using queues.push(x) -- Push element x onto stack.pop() -- Removes the element on top of the...
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其他好文 时间:
2015-06-24 23:48:32
阅读次数:
120
题目:Implement regular expression matching with support for '.' and '*'.'.' Matches any single character.'*' Matches zero or more of the preceding eleme...
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其他好文 时间:
2015-06-24 22:29:30
阅读次数:
174