学习总结: 1. nil 和null? 2.Values of type 'NSInteger' should not be used as format arguments; add an explicit cast to 'long' instead。 ...
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移动开发 时间:
2018-12-31 15:52:22
阅读次数:
166
Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center). For example, this binary tree [1,2,2,3,4,4,3] is symmet ...
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其他好文 时间:
2018-12-28 10:47:32
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141
Xfce 远程桌面Tab键设置 Use CTRL-tab instead of tab The XFCE Terminal has kidnapped the tab key for a feature of it's own, tab/windows switching. Instead the ...
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其他好文 时间:
2018-12-20 23:58:35
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260
There are 1000 buckets, one and only one of them contains poison, the rest are filled with water. They all look the same. If a pig drinks that poison ...
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编程语言 时间:
2018-12-17 21:33:50
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185
1.注释bind-address = 127.0.0.1。 代码如下: > sudo vim /etc/mysql/mysql.conf.d/mysqld.cnf 将bind-address = 127.0.0.1注释掉(即在行首加#),如下: 代码如下: # Instead of skip-net ...
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数据库 时间:
2018-12-14 21:13:00
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144
https://leetcode.com/problems/integer-to-roman/ Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M. For example, two is ...
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其他好文 时间:
2018-12-10 15:38:40
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146
Two elements of a binary search tree (BST) are swapped by mistake. Recover the tree without changing its structure. Example 1: Input: [1,3,null,null,2 ...
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其他好文 时间:
2018-12-09 20:13:34
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142
Write a program that outputs the string representation of numbers from 1 to n. But for multiples of three it should output “Fizz” instead of the numbe ...
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其他好文 时间:
2018-12-04 22:26:51
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233
Interop type 'PISDKClass' cannot be embedded. Use the applicable interface instead. .net开发中,有时候在引用某些类时,会提示无法嵌入互操作类型“*****.Class”。请改用适用的接口。找到应用的类,点 视图- ...
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Web程序 时间:
2018-12-02 14:55:46
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204
【ls】list列表-l:长格式dr-xr-xr-x.2rootroot40969月252015bindr-xr-xr-x.5rootroot10249月242015bootdrwxr-xr-x.19rootroot376011月2604:14devdrwxr-xr-x.107rootroot1228811月2604:14etcdrwxr-xr-x.7rootroot409612月202015ft
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其他好文 时间:
2018-11-27 16:57:12
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604