Given a linked list, determine if it has a cycle in it.Follow up:Can you solve it without using extra space?这道题用来判断链表中是否有循环，最开始我想的是遍历链表，同时用一个list保存遍历过...
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其他好文 时间：
2014-11-21 01:18:32
阅读次数：
203
Linked List CycleGiven a linked list, determine if it has a cycle in it.Follow up:Can you solve it without using extra space?这道题要用双指针，但我想试一下投机取巧的办法行不行...
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其他好文 时间：
2014-11-20 21:46:01
阅读次数：
185
You are given an n x n 2D matrix representing an image.Rotate the image by 90 degrees (clockwise).Follow up:Could you do this in-place? ...
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其他好文 时间：
2014-11-20 13:20:00
阅读次数：
289
问题描述：
Follow up for "Remove Duplicates":
What if duplicates are allowed at most twice?
For example,
Given sorted array A = [1,1,1,2,2,3],
Your function should return length = 5, and A is now
[...
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其他好文 时间：
2014-11-19 22:19:08
阅读次数：
138
Given amxnmatrix, if an element is 0, set its entire row and column to 0. Do it in place.click to show follow up.Follow up:Did you use extra space?A s...
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其他好文 时间：
2014-11-19 20:25:11
阅读次数：
248
问题描述：
You are given an n x n 2D matrix representing an image.
Rotate the image by 90 degrees (clockwise).
Follow up:
Could you do this in-place?
基本思路：
此题要求矩阵顺时针转90度。可以找出元素选择规律：
i‘ = j;
j...
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其他好文 时间：
2014-11-19 11:26:21
阅读次数：
128
问题描述：
You are given an n x n 2D matrix representing an image.
Rotate the image by 90 degrees (clockwise).
Follow up:
Could you do this in-place?
基本思路：
此题要求矩阵顺时针转90度。可以找出元素选择规律：
i‘ = j;
j...
分类：
其他好文 时间：
2014-11-19 01:24:29
阅读次数：
154
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 ListTwo Pointers''...
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其他好文 时间：
2014-11-18 23:25:09
阅读次数：
170
Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place.click to show follow up.Follow up: Did you use extra spac...
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其他好文 时间：
2014-11-17 00:23:53
阅读次数：
244
Given a linked list, return the node where the cycle begins. If there is no cycle, returnnull.Follow up:Can you solve it without using extra space?本来不...
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其他好文 时间：
2014-11-16 17:10:02
阅读次数：
276
