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leetcode dfs Flatten Binary Tree to Linked List
Flatten Binary Tree to Linked List  Total Accepted: 25034 Total Submissions: 88947My Submissions Given a binary tree, flatten it to a linked list in-place. For example, Given 1...
分类:其他好文   时间:2014-10-11 20:54:36    阅读次数:214
第16&17题 Remove Duplicates from Sorted List
Remove Duplicates from Sorted List I Given a sorted linked list, delete all duplicates such that each element appear only once. For example, Given 1->1->2, return 1->2. Given 1->1->2->3->3...
分类:其他好文   时间:2014-10-11 16:50:15    阅读次数:206
Partition List
# Definition for singly-linked list.class ListNode: def __init__(self, x): self.val = x self.next = Noneclass Solution: # @para...
分类:其他好文   时间:2014-10-10 19:36:04    阅读次数:167
LeetCode-Reverse Nodes in k-Group
Reverse Nodes in k-GroupGiven a linked list, reverse the nodes of a linked listkat a time and return its modified list.If the number of nodes is not a...
分类:其他好文   时间:2014-10-10 00:17:43    阅读次数:355
LeetCode-Swap Nodes in Pairs
题目:Given a linked list, swap every two adjacent nodes and return its head.For example,Given1->2->3->4, you should return the list as2->1->4->3.Your al...
分类:其他好文   时间:2014-10-09 00:31:07    阅读次数:234
leetcode - Reverse Linked List II
Reverse a linked list from position m to n. Do it in-place and in one-pass. For example: Given 1->2->3->4->5->NULL, m = 2 and n = 4, return 1->4->3->2->5->NULL. Note: Given m, n satisfy t...
分类:其他好文   时间:2014-10-08 15:33:25    阅读次数:154
第11题 Reorder List
Given a singly linked list L: 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 example, Given {1,2,3,4}, reorder it t...
分类:其他好文   时间:2014-10-08 15:01:15    阅读次数:159
[Leetcode][JAVA] Linked List Cycle I && II
Linked List CycleGiven a linked list, determine if it has a cycle in it.Follow up:Can you solve it without using extra space?使用快慢指针,如果有循环两指针必定能相遇: 1 p...
分类:编程语言   时间:2014-10-08 04:32:34    阅读次数:298
Remove Duplicates from Sorted List I&&II
Remove Duplicates from Sorted ListGiven a sorted linked list, delete all duplicates such that each element appear onlyonce.For example,Given1->1->2, r...
分类:其他好文   时间:2014-10-08 01:26:44    阅读次数:239
Leetcode:Sort List
题目:Sort ListSort a linked list in O(n log n) time using constant space complexity看题目有两个要求:1)时间复杂度为O(nlogn);2)空间复杂度为常数,即不能增设额外的空间。满足这样要求的排序算法,我们首先想到快排,...
分类:其他好文   时间:2014-10-07 19:28:53    阅读次数:245
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