Given a linked list, determine if it has a cycle in it.Follow up:Can you solve it without using extra space?Analysis: typical Runner Technique. 一次过 1 ...
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其他好文 时间:
2014-06-28 13:44:51
阅读次数:
164
Given a linked list, return the node where the cycle begins. If there is no cycle, return null.Follow up:Can you solve it without using extra space?一次...
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其他好文 时间:
2014-06-28 13:38:14
阅读次数:
171
Reverse a linked list from positionmton. Do it in-place and in one-pass.For example:Given1->2->3->4->5->NULL,m= 2 andn= 4,return1->4->3->2->5->NULL.No...
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其他好文 时间:
2014-06-28 13:23:40
阅读次数:
150
题目:Flatten Binary Tree to Linked ListGiven a binary tree, flatten it to a linked list in-place.For example,Given 1 / \ 2 5 ...
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其他好文 时间:
2014-06-24 09:09:02
阅读次数:
147
/** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; *...
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其他好文 时间:
2014-06-22 23:59:58
阅读次数:
244
Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list.
For example,
Given 1->2->3->3->4->4->5, return 1->2->5.
Given 1->1-...
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其他好文 时间:
2014-06-22 22:57:49
阅读次数:
347
Given a linked list, remove the nth node from the end of list and return its head.
For example,
Given linked list: 1->2->3->4->5, and n = 2.
After removing the second node from the end, the...
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其他好文 时间:
2014-06-22 20:02:46
阅读次数:
182
Sort a linked list in O(n log n)
time using constant space complexity.
这道题目非常简短的一句话,给链表排序,看到nlogn,我们可以来简单复习一下排序。首先说一下这个nlogn的时间复杂度(根据决策树我们可以得出这个界限),是基于比较排序的最小上限,也就是说,对于没有一定范围情况的数据来说,最快的排序思路就是归并和快速排...
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其他好文 时间:
2014-06-22 09:02:54
阅读次数:
250
Convert Sorted List to Binary Search Tree
Total Accepted: 12283 Total
Submissions: 45910My Submissions
Given a singly linked list where elements are sorted in ascending order, convert it...
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其他好文 时间:
2014-06-21 23:57:00
阅读次数:
351
Linked List CycleGiven a linked list, determine if it has a cycle in it.Follow up:Can you solve it without using extra space?Linked List Cycle IIGiven...
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其他好文 时间:
2014-06-20 20:46:58
阅读次数:
245