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Reorder List
Given a singly linked listL:L0→L1→…→Ln-1→Ln,reorder it to:L0→Ln→L1→Ln-1→L2→Ln-2→…You must do this in-place without altering the nodes' values.For exam...
分类:其他好文   时间:2014-12-03 13:49:04    阅读次数:154
LeetCode[Tree]: Flatten Binary Tree to Linked List
Given a binary tree, flatten it to a linked list in-place. For example, Given 1 / 2 5 / \ 3 4 6 The flattened tree should look like: 1 2 3 4 5 6 递归算法 这种问题非常适合用...
分类:其他好文   时间:2014-12-02 15:19:59    阅读次数:168
POJ2236 Wireless Network 【并查集】
Wireless Network Time Limit: 10000MS   Memory Limit: 65536K Total Submissions: 16885   Accepted: 7091 Description An earthquake takes place in Southeast Asia. The ACM (...
分类:Web程序   时间:2014-12-02 10:38:42    阅读次数:235
[LeetCode]Flatten Binary Tree to Linked List
Given a binary tree, flatten it to a linked list in-place. For example, Given 1 / 2 5 / \ 3 4 6 The flattened tree should look like: 1 ...
分类:其他好文   时间:2014-12-01 22:36:30    阅读次数:178
LeetCode[Array]: Set Matrix Zeroes
Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place. Follow up: Did you use extra space? A straight forward solution using O(mn) space is probably a bad ide...
分类:其他好文   时间:2014-11-30 17:00:32    阅读次数:223
LeetCode:Flatten Binary Tree to Linked List
要求:Given a binary tree, flatten it to a linked list in-place.将二叉树转化为平坦序列的树。比如:结题思路:该题有个提示,转化后的树的序列正好是二叉树前序遍历所得到的序列,所以,该题第一个思路就是利用前序遍历的方式来做。第二个思路:我们可以利...
分类:其他好文   时间:2014-11-29 18:48:51    阅读次数:196
Leetcode-Remove Element
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 changed. It doesn't mat...
分类:其他好文   时间:2014-11-29 10:12:55    阅读次数:167
[LeetCode] Rotate Image
You are given annxn2D matrix representing an image.Rotate the image by 90 degrees (clockwise).Follow up:Could you do this in-place?Hide TagsArray 一题严....
分类:其他好文   时间:2014-11-28 16:00:34    阅读次数:128
UVA - 110
Meta-Loopless SortsBackgroundSorting holds an important place in computer science. Analyzing and implementing various sorting algorithms forms an impo...
分类:其他好文   时间:2014-11-28 09:52:41    阅读次数:265
poj 2538 WERTYU
WERTYU Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 8492   Accepted: 4063 Description   A common typing error is to place the hands on the keyboard one...
分类:其他好文   时间:2014-11-27 22:12:48    阅读次数:291
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