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Populating Next Right Pointers in Each Node II
Follow up for problem "Populating Next Right Pointers in Each Node". What if the given tree could be any binary tree? Would your previous solution still work? Note: You may only use constant ...
分类:其他好文   时间:2015-01-04 13:37:37    阅读次数:139
从餐厅运营来看如何构建高性能服务器
运营一个餐厅和构建一个高性能的服务器有很多相似的地方,我们一起来看看吧。 https://www.zybuluo.com/jewes/note/59732 单打独斗的单线程模式 小明的餐厅刚起步,规模很小,就只有小明一个人在忙活。当客人到来的时候,他得首先去招呼客人,等客人下单,然后去后厨炒菜,然后再把饭菜端给客人。如果在这个过程中有新的客人到来,他是没有功夫去招呼新客人,新客人就只能在...
分类:其他好文   时间:2015-01-04 00:01:28    阅读次数:436
Leetcode: Binary Search Tree Iterator
Implement an iterator over a binary search tree (BST). Your iterator will be initialized with the root node of a BST. Calling next() will return the next smallest number in the BST. Note: next()...
分类:其他好文   时间:2015-01-03 22:26:17    阅读次数:219
Factorial Trailing Zeroes (divide and conquer)
QUESTIONGiven an integer n, return the number of trailing zeroes in n!.Note: Your solution should be in logarithmic time complexity.FIRST TRYclass Sol...
分类:其他好文   时间:2015-01-03 19:49:18    阅读次数:178
LeetCode: Construct Binary Tree from Inorder and Postorder Traversal 解题报告
Construct Binary Tree from Inorder and Postorder TraversalGiven inorder and postorder traversal of a tree, construct the binary tree.Note:You may assu...
分类:其他好文   时间:2015-01-03 17:18:44    阅读次数:136
LeetCode: Construct Binary Tree from Preorder and Inorder Traversal 解题报告
Construct Binary Tree from Preorder and Inorder TraversalGiven preorder and inorder traversal of a tree, construct the binary tree.Note:You may assume...
分类:其他好文   时间:2015-01-03 00:53:53    阅读次数:235
Leetcode: Factorial Trailing Zeroes
Given an integer n, return the number of trailing zeroes in n!. Note: Your solution should be in logarithmic time complexity. 解析: 只有2和5相乘才会出现0,其中整十也可以看做是2和5相乘的结果,所以,可以在n之前看看有多少个2以及多少个5就行了,又发现2的数量...
分类:其他好文   时间:2015-01-02 22:28:57    阅读次数:213
Leetcode:Recover Binary Search Tree
Two elements of a binary search tree (BST) are swapped by mistake.Recover the tree without changing its structure.Note:A solution using O(n) space is ...
分类:其他好文   时间:2015-01-02 21:07:27    阅读次数:155
Leetcode:Recover Binary Search Tree
Two elements of a binary search tree (BST) are swapped by mistake.Recover the tree without changing its structure.Note:A solution using O(n) space is ...
分类:其他好文   时间:2015-01-02 21:01:15    阅读次数:184
关于SOAP
http://www.tutorialspoint.com/soap/index.htmhttp://www.w3.org/TR/2000/NOTE-SOAP-20000508/SOAP协议规范介绍
分类:其他好文   时间:2015-01-02 17:22:17    阅读次数:130
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