Given a string containing just the characters '(' and ')',
find the length of the longest valid (well-formed) parentheses substring.
For "(()", the longest valid parentheses substring is "()",
...
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其他好文 时间:
2015-07-03 00:20:43
阅读次数:
143
Kth Smallest Element in a BSTGiven a binary search tree, write a functionkthSmallestto find thekth smallest element in it.Note:You may assume k is alw...
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编程语言 时间:
2015-07-03 00:07:34
阅读次数:
188
题目:
Given an array of integers and an integer k,
find out whether there there are two distinct indices i and j in
the array such that nums[i] = nums[j] and
the difference between i and j is
a...
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编程语言 时间:
2015-07-02 22:47:39
阅读次数:
192
Given a binary search tree, write a function kthSmallest to find the kth smallest element in it.Note:
You may assume k is always valid, 1 ≤ k ≤ BST’s total elements.Follow up:
What if the BST is mod...
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其他好文 时间:
2015-07-02 22:37:12
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129
Given a binary search tree, write a functionkthSmallestto find thekth smallest element in it.Note:You may assume k is always valid, 1 ≤ k ≤ BST's tota...
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其他好文 时间:
2015-07-02 22:30:24
阅读次数:
263
1.开启mongoDB服务1 sudo service mongodb start2.进入mongoDB命令行操作界面 在命令行中敲exit可以退出1 mongo3.find() 基本查询用法:db.COLLECTION_NAME.find();--(mongoDB里有集合COLLECTIONS的....
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数据库 时间:
2015-07-02 19:26:34
阅读次数:
143
Given a 2D board and a word, find if the word exists in the grid.The word can be constructed from letters of sequentially adjacent cell, where “adjacent” cells are those horizontally or vertically neig...
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其他好文 时间:
2015-07-02 17:40:27
阅读次数:
95
语法str_replace(find,replace,string,count)参数描述find必需。规定要查找的值。replace必需。规定替换find中的值的值。string必需。规定被搜索的字符串。count可选。一个变量,对替换数进行计数。这个我不确定是语法bug还是我写法的问题,当出现匹配...
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其他好文 时间:
2015-07-02 17:25:21
阅读次数:
106
find_first_of()和 find_last_of() 【获取路径、文件名】(2011-06-11 12:44:46)转载▼标签: 杂谈 分类: c string 类提供字符串处理函数,利用这些函数,程序员可以在字符串内查找字符,提取连续字符序列(称为子串),以及在字符串中删除和添加。我们将...
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其他好文 时间:
2015-07-02 17:04:02
阅读次数:
198
一.find运算假设有一个int型的vector对象,名为vec,我们想知道其中是否包含某个特定值。解决这个问题最简单的方法时使用标准库提供的find运算: 1 // value we'll look for 2 int search_value = 42; 3 4 //call find to ....
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编程语言 时间:
2015-07-02 17:01:12
阅读次数:
189