Given an input string, reverse the string word by word.For example,Given s = "the sky is blue",return "blue is sky the".此题要注意的几个情况是:(1)输入字符串可能含有前缀0和后缀...
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其他好文 时间:
2014-06-28 22:51:26
阅读次数:
261
1、检查空间是否够用(我的就是这个原因) df -hl 查看,如果可用的很少,那就是了。2、datanode是否正常启动 访问:50070,查看datanode的个数,如果不对应,重新启动3、是否在safemode下 hadoop dfsadmin -safemode get,查看,leave...
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其他好文 时间:
2014-06-19 00:14:41
阅读次数:
306
Given a binary tree, return thepostordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ 2 / 3return[3,2,1].No...
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其他好文 时间:
2014-06-18 17:32:02
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168
Given a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the root node down to the farthest le...
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其他好文 时间:
2014-06-18 12:51:52
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205
题目
Given a linked list, swap every two adjacent nodes and return its head.
For example,
Given 1->2->3->4, you should return the list as 2->1->4->3.
Your algorithm should use only const...
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其他好文 时间:
2014-06-18 11:53:39
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138
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single ...
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其他好文 时间:
2014-06-17 23:38:04
阅读次数:
341
1、
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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....
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其他好文 时间:
2014-06-17 23:03:12
阅读次数:
257
题目
Given a linked list, reverse the nodes of a linked list k at a time and return its modified list.
If the number of nodes is not a multiple of k then left-out nodes in the end should rem...
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其他好文 时间:
2014-06-17 22:15:52
阅读次数:
299
Reverse digits of an integer.Example1: x = 123, return 321 Example2: x = -123, return -321Have you thought about this?Here are some good questions to ...
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其他好文 时间:
2014-06-17 20:06:14
阅读次数:
205
处理这个问题还是挺复杂的,需要考虑很多边界的测试用例。我总体的思路是先用循环标记m前一个节点和n后边一个节点,把n后边的节点首先作为当前逆转节点的pre,然后循环n-m次完成所选节点部分的逆序,然后将标记的m节点前一个节点指向逆序后部分的头节点即可。要考虑各种特殊情况,另外考虑即可。code如下:...
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其他好文 时间:
2014-06-15 13:44:17
阅读次数:
323