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LeetCode Convert Sorted Array to Binary Search Tree
1.题目Given an array where elements are sorted in ascending order, convert it to a height balanced BST.2.解决方案1 struct Node{ TreeNode* t; int l; int r; Node(vector &num, int l, int r)...
分类:其他好文   时间:2015-03-08 10:28:52    阅读次数:148
Spiral Matrix
Spiral Matrix问题:Given a matrix ofmxnelements (mrows,ncolumns), return all elements of the matrix in spiral order.思路: 矩阵螺旋访问模板我的代码:public class Soluti....
分类:其他好文   时间:2015-03-08 10:25:01    阅读次数:105
[Bootstap] 9. Dropdown
Dropdown Arrow ClassIn order to create a down arrow like this:, what class should we apply to the element?Answer: caretOpening DropdownsThe Bootstrap ...
分类:其他好文   时间:2015-03-08 00:06:20    阅读次数:451
[LeetCode] Add Two Numbers
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single ...
分类:其他好文   时间:2015-03-08 00:02:05    阅读次数:193
Spiral Matrix II
Spiral Matrix II问题:Given an integern, generate a square matrix filled with elements from 1 ton2in spiral order.思路: 矩阵的旋转常用模板我的代码:public class Solutio....
分类:其他好文   时间:2015-03-07 21:11:38    阅读次数:136
1069. The Black Hole of Numbers
For any 4-digit integer except the ones with all the digits being the same, if we sort the digits in non-increasing order first, and then in non-decreasing order, a new number can be obtained by takin...
分类:其他好文   时间:2015-03-07 17:11:22    阅读次数:124
leetcode------Spiral Matrix
标题:Spiral Matrix通过率:20.8%难度:中等Given a matrix ofmxnelements (mrows,ncolumns), return all elements of the matrix in spiral order.For example,Given the f...
分类:其他好文   时间:2015-03-07 17:07:14    阅读次数:108
MySQL中group_concat函数 --- 很有用的一个用来查询出所有group by 分组后所有 同组内的 内容
本文通过实例介绍了MySQL中的group_concat函数的使用方法,比如select group_concat(name) 。MySQL中group_concat函数完整的语法如下:group_concat([DISTINCT] 要连接的字段 [Order BY ASC/DESC 排序字段] [...
分类:数据库   时间:2015-03-07 15:37:11    阅读次数:196
leetcode_108_Convert Sorted Array to Binary Search Tree
欢迎大家阅读参考,如有错误或疑问请留言纠正,谢谢 Convert Sorted Array to Binary Search Tree Given an array where elements are sorted in ascending order, convert it to a height balanced BST. 这道题是二分查找树的题目,要把一个有序数组转换...
分类:其他好文   时间:2015-03-07 14:15:44    阅读次数:130
Remove Element
Remove Element问题:Given an array and a value, remove all instances of that value in place and return the new length.The order of elements can be change...
分类:其他好文   时间:2015-03-07 11:24:53    阅读次数:149
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