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Leetcode | Sum Root to Leaf Numbers
Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number.An example is the root-to-leaf path 1->2->3 which...
分类:其他好文   时间:2014-05-05 23:55:36    阅读次数:407
HDU 4718 The LCIS on the Tree(树链剖分)
Problem DescriptionFor a sequence S1, S2, ... , SN, and a pair of integers (i, j), if 1 2 #include 3 #include 4 #include 5 using namespace std...
分类:其他好文   时间:2014-05-05 23:50:08    阅读次数:445
【LeetCode OJ】Longest Consecutive Sequence
Problem Link:http://oj.leetcode.com/problems/longest-consecutive-sequence/This problem is a classical problem where we can reduce the running time by ...
分类:其他好文   时间:2014-05-05 22:55:22    阅读次数:552
Leetcode: Remove Duplicates from Sorted List
遇到的问题:input{1,1,1}, output{1,1}, expected{1}, 原因在于若temp.val==temp.next.val, 则需要temp.next=temp.next.next, 这时候就不要temp=temp.next了注意停止条件不光是temp!=null,还应该有...
分类:其他好文   时间:2014-05-05 22:47:08    阅读次数:454
Reverse Linked List II
Link:http://oj.leetcode.com/problems/reverse-linked-list-ii/Reverse a linked list from positionmton. Do it in-place and in one-pass.For example:Given1...
分类:其他好文   时间:2014-05-05 22:46:11    阅读次数:411
【LeetCode OJ】Word Ladder I
Problem Link:http://oj.leetcode.com/problems/word-ladder/Two typical techniques are inspected in this problem:Hash Table. One hash set is the words di...
分类:其他好文   时间:2014-05-05 22:44:44    阅读次数:393
视图
视图(View)实际上是一张或者多张表上的预定义查询,这些表称为基表。从视图中查询信息与从表中查询信息的方法完全相同。只需要简单的 SELECT…FROM 即可。视图具有以下优点:1. 可以限制用户只能通过视图检索数据。这样就可以对最终用户屏蔽建表时底层的基表。2. 可以将复杂的查询保存为视图。.....
分类:其他好文   时间:2014-05-05 22:38:28    阅读次数:332
Balanced Binary Tree
Link:http://oj.leetcode.com/problems/balanced-binary-tree/Given a binary tree, determine if it is height-balanced.For this problem, a height-balanced ...
分类:其他好文   时间:2014-05-05 22:29:55    阅读次数:382
Lowest Bit------HDOJ杭电1196(想法很重要)
Problem Description Given an positive integer A (1 For example, given A = 26, we can write A in binary form as 11010, so the lowest bit of A is 10, so the output should be 2. Another example...
分类:其他好文   时间:2014-05-05 13:22:39    阅读次数:394
[ACM] hdu 1228 A+B (字符串处理)
A + B Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 11543    Accepted Submission(s): 6699 Problem Description   读入两个小于100的正整数A和B,计...
分类:其他好文   时间:2014-05-03 16:00:57    阅读次数:270
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