原始矩形块模式emacs以C-x r开头的命令来进行矩形操作。先用C-space或者C-@设一个mark,移动光标到另一点,用以下命令进行列操作:C-x r r 复制一个矩形区域到寄存器C-x r k 剪切一个矩形块C-x r y 粘贴一个矩形块C-x r o 插入一个矩形块C-x r c 清除一个...
分类:
系统相关 时间:
2014-10-26 21:16:51
阅读次数:
343
Determine whether an integer is a palindrome. Do this without extra space.click to show spoilers.Some hints:Could negative integers be palindromes? (i...
分类:
其他好文 时间:
2014-10-26 16:52:38
阅读次数:
148
Given a stringsconsists of upper/lower-case alphabets and empty space characters' ', return the length of last word in the string.If the last word doe...
分类:
其他好文 时间:
2014-10-26 14:18:54
阅读次数:
158
问题描述:
Given an index k, return the kth row of the Pascal's triangle.
For example, given k = 3,
Return [1,3,3,1].
Note:
Could you optimize your algorithm to use only O(k) extra space?
思路:
...
分类:
其他好文 时间:
2014-10-26 11:46:08
阅读次数:
251
Given a sorted array, remove the duplicates in place such that each element appear onlyonceand return the new length.Do not allocate extra space for a...
分类:
其他好文 时间:
2014-10-26 11:34:46
阅读次数:
243
Sort a linked list inO(nlogn) time using constant space complexity.链表排序。要达到nlogn的时间复杂度,能想到归并排序与快速排序。这里采用归并排序: 1 /** 2 * Definition for singly-linked ....
分类:
其他好文 时间:
2014-10-26 10:17:34
阅读次数:
186
题目:Given two sorted integer arrays A and B, merge B into A as one sorted array.Note:You may assume that A has enough space (size that is greater or eq...
分类:
编程语言 时间:
2014-10-26 00:21:33
阅读次数:
216
题目:Given a sorted array, remove the duplicates in place such that each element appear onlyonceand return the new length.Do not allocate extra space fo...
分类:
其他好文 时间:
2014-10-25 22:57:43
阅读次数:
155
Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length.
Do not allocate extra space for another array, you must do this in place with...
分类:
其他好文 时间:
2014-10-25 18:51:14
阅读次数:
143
Determine whether an integer is a palindrome. Do this without extra space.
click to show spoilers.
Some hints:
Could negative integers be palindromes? (ie, -1)
If you are thinking of converting th...
分类:
其他好文 时间:
2014-10-25 09:21:10
阅读次数:
182