1.题目描述Given a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node.2.解决方案1class Solution {
public:...
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其他好文 时间:
2015-03-06 11:22:23
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126
第一掌 避免对列的操作任何对列的操作都可能导致全表扫描,这里所谓的操作包括数据库函数、计算表达式等等,查询时要尽可能将操作移至等式的右边,甚至去掉函数。例1:下列SQL条件语句中的列都建有恰当的索引,但30万行数据情况下执行速度却非常慢:select * from record where subs...
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数据库 时间:
2015-03-05 22:10:37
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307
About iOS Collection Views(关于IOS集合视图)
A collection view is a way to present an ordered set of data items using a flexible and changeable layout. The most common use for collection views is to pre...
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移动开发 时间:
2015-03-05 17:10:46
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181
Longest Substring Without Repeating CharactersGiven a string, find the length of the longest substring without repeating characters. For example, the ...
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其他好文 时间:
2015-03-05 16:15:49
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104
Write a function to find the longest common prefix string amongst an array of strings.
这个题目非常简单,只要弄清楚题意就可以非常快地解决,我的C++代码实现如下: string longestCommonPrefix(vector &strs) {
if (strs.empt...
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其他好文 时间:
2015-03-04 19:13:18
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127
HDU 1403 Longest Common Substring(后缀数组啊 求最长公共子串 模板题)...
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编程语言 时间:
2015-03-04 19:08:31
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161
代码: 1 #include 2 3 using namespace std; 4 5 int lengthOfLongestSubString(string s) 6 { 7 if (s.length() == 0) 8 return 0; 9 int max ...
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其他好文 时间:
2015-03-04 18:52:52
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104
DP类题目找到子问题(状态),然后找到转移方程,就OK#dp#likes matrixchain#according to two point's distance to recurrenceclass Solution: # @return a string def longest...
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其他好文 时间:
2015-03-04 18:51:45
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122
题目Given a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node.代码/**
* Definition for binary tree
* p...
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其他好文 时间:
2015-03-04 17:08:21
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118
Given a stringS, find the longest palindromic substring inS. You may assume that the maximum length ofSis 1000, and there exists one unique longest pa...
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其他好文 时间:
2015-03-04 09:44:51
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122