I've heard several people asking why GCHandle doesn't implement IDisposable, considering it wraps an unmanaged resource (a handle) and needs to be exp...
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其他好文 时间:
2014-10-25 13:11:03
阅读次数:
298
题目
Given an array of integers, every element appears twice except for one. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement i...
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其他好文 时间:
2014-10-25 00:51:38
阅读次数:
214
String to Integer (atoi)
Total Accepted:
20984 Total Submissions:
145855
Implement atoi to convert a string to an integer.
Hint: Carefully consider all possible input cases. If you want a...
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其他好文 时间:
2014-10-24 22:19:11
阅读次数:
199
自定义单元格有三种方法
- 代码实现
- xib
- storyboard(推荐)
在故事板中操作方法为
1、在TableView属性的Prototype Cells设置为1,默认为1;
2、需要创建自定义的单元格类;
3、设定Table View Cell的Class为自定义类;
自定义类:(并不难)
#import "CustomCell.h"
@implement...
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移动开发 时间:
2014-10-24 14:37:05
阅读次数:
176
问题描述:
Given an array of integers, every element appears twice except for one. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement it without ...
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其他好文 时间:
2014-10-24 13:08:49
阅读次数:
221
Implement strStr().Returns a pointer to the first occurrence of needle in haystack, ornullif needle is not part of haystack. 1 public class Solution {...
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其他好文 时间:
2014-10-23 01:16:35
阅读次数:
220
Implement int sqrt(int x).
Compute and return the square root of x.
二分法,当无法求得准确值时,去较小值,(同时是最接近的)
public class Solution {
public int sqrt(int x) {
if(x<1) return 0;
int left = 1;
...
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其他好文 时间:
2014-10-22 18:17:03
阅读次数:
228
Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations: get and set.
get(key) - Get the value (will always be positive)
of the key if ...
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系统相关 时间:
2014-10-22 12:56:02
阅读次数:
274
problem:Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers.If such arrangement is not...
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其他好文 时间:
2014-10-22 06:18:10
阅读次数:
149
文章来源:PHP开发学习门户
地址:http://www.phpthinking.com/archives/602
开发习惯常用字符串处理函数梳理:
strtr() 转换字符串中特定的字符。
substr() 返回字符串的一部分。
strstr() 搜索字符串在另一字符串中的首次出现(对大小写敏感)
str_replace() 替换字符串中的一些字符。(对大小写敏感)
str...
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Web程序 时间:
2014-10-21 10:27:43
阅读次数:
189