The gray code is a binary numeral system where
two successive values differ in only one bit.Given a non-negative
integernrepresenting the total number...
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其他好文 时间:
2014-06-10 00:01:38
阅读次数:
392
Given an array of integers, find two numbers such that they add up to a specific target number.
The function twoSum should return indices of the two numbers such that they add up to the target, whe...
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其他好文 时间:
2014-06-09 23:14:45
阅读次数:
264
今天要写一个联系人搜索算法。百度了下, 在code4App中找到相关代码。但是自己跑了下, 发现报错。错误内容如下:"Cast from pointer to smaller type 'int' loses information” 从错误内容我们也能看出, 错误出在'int'这里了。而那份代码也比较早的, 在Xcode5.1之后, 要用uintptr_t来替代int。把错误语句处的int全换成...
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移动开发 时间:
2014-06-08 18:28:25
阅读次数:
429
下面的代码片段输出是什么?为什么?
char *ptr;
if((ptr = (char *)malloc(0))==NULL)
puts("Got a null pointer");
else
puts("Got a valid pointer");
解析:......故意把0值传给了函数malloc,得到了一个合法的指针,这就是上面的代码,该代码的输出是"Got ...
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其他好文 时间:
2014-06-08 17:11:28
阅读次数:
285
题目
Two elements of a binary search tree (BST) are swapped by mistake.
Recover the tree without changing its structure.
Note:
A solution using O(n)
space is pretty straight forward. Cou...
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其他好文 时间:
2014-06-08 15:32:45
阅读次数:
245
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 digit. Add the two numbers and return it as a link...
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其他好文 时间:
2014-06-08 15:30:28
阅读次数:
227
先上写干货,几个开源网站:
github.com
launchpad.netgitorious.orgsourceforge.netfreecode.com
今天介绍一下python函数和文件读写的知识。
函数
def print_two(*args):#That tells Python to take all the arguments to the function a...
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编程语言 时间:
2014-06-08 10:37:23
阅读次数:
277
Given two integersnandk, return all possible
combinations ofknumbers out of 1 ...n.For example,Ifn= 4 andk= 2, a solution
is:[ [2,4], [3,4], [2,3],...
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其他好文 时间:
2014-06-08 08:08:29
阅读次数:
294
Given an array of integers, find two numbers such that they add up to a specific target number.
The function twoSum should return indices of the two numbers such that they add up to the target, whe...
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其他好文 时间:
2014-06-08 02:12:04
阅读次数:
216
Givennnon-negative integersa1,a2, ...,an, where
each represents a point at coordinate (i,ai).nvertical lines are drawn such that
the two endpoints of ...
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其他好文 时间:
2014-06-07 23:03:35
阅读次数:
279