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zsc_寒假训练 5
DescriptionJulius Caesar lived in a time of danger and intrigue. The hardest situation Caesar ever faced was keeping himself alive. In order for him t...
分类:其他好文   时间:2015-01-21 22:04:51    阅读次数:259
顺时针打印矩阵
顺时针打印矩阵 Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. For example, Given the following matrix: [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9...
分类:其他好文   时间:2015-01-21 20:04:46    阅读次数:165
Partition List
Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than or equal to x. You should preserve the original relative order of the nodes in each of...
分类:其他好文   时间:2015-01-21 18:12:02    阅读次数:114
order by的注意事项
如果a, b, c类型都是integer型那么执行order by的时候没有问题如果a, b, c中存在string类型那么string类型的值就分为null和空,order by的时候空和null被判定为两组,有可能导致结果不符合预期SELECT name, parentId, count(*) ...
分类:其他好文   时间:2015-01-21 14:42:33    阅读次数:207
LeetCode Binary Tree Level Order Traversal
传送门:https://oj.leetcode.com/problems/binary-tree-level-order-traversal/Given a binary tree, return thelevel ordertraversal of its nodes' values. (ie, ...
分类:其他好文   时间:2015-01-21 13:22:25    阅读次数:151
sql - 选出指定范围的行
Select no=Identity(int,1,1),* Into #temptable From dbo.tName order by fName --利用Identity函数生成记录序号 Select * From #temptable Where no>=10 And no < 20Drop...
分类:数据库   时间:2015-01-21 01:17:44    阅读次数:251
[C++]LeetCode: 114 Permutation Sequence(返回第k个阶乘序列——寻找数学规律)
题目: The set [1,2,3,…,n] contains a total of n! unique permutations. By listing and labeling all of the permutations in order, We get the following sequence (ie, for n = 3): "123""132""213"...
分类:编程语言   时间:2015-01-20 22:19:05    阅读次数:209
[LeetCode] Convert Sorted Array to Binary Search Tree
Given an array where elements are sorted in ascending order, convert it to a height balanced BST.思路:递归的思路。思路与重建二叉树类似。时间复杂度O(n), 空间复杂度O(logN) 1 /** 2 ....
分类:其他好文   时间:2015-01-20 22:00:43    阅读次数:170
Permutation Sequence
The set[1,2,3,…,n]contains a total ofn! unique permutations.By listing and labeling all of the permutations in order,We get the following sequence (ie...
分类:其他好文   时间:2015-01-20 17:47:21    阅读次数:135
Add Two Numbers
Add Two NumbersYou are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes co...
分类:其他好文   时间:2015-01-20 17:31:13    阅读次数:136
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