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(Mac) -bash: __git_ps1: command not found
...
In MacPorts, the path changed when the package git-core was replaced by git, see this question
– Ramon de la Fuente
Jun 16 '14 at 14:42
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C语言之父辞世引发“分号”悼念 - 创意 - 清泛网 - 专注C/C++及内核技术
...70岁之龄辞世。
生于1941年9月9日的丹尼斯·里奇曾在哈佛大学学习物理学和应用数学，1967年他进入贝尔实验室，并曾经担任朗讯技术公司系统软件研究部门的领导人。
1983年，美国计算机协会将当年的图灵奖破例颁给了作为软...
Lock-free multi-threading is for real threading experts
..., however run into issues when you start to do multi-threading on multiple cores. Your intuitions will break down: just because an instruction is earlier in your code, it does not mean that it will actually happen earlier. CPUs can process instructions out of order: and they especially like to do th...
Implementing Fast and Efficient Core Data Import on iOS 5
...stackoverflow.com%2fquestions%2f10542097%2fimplementing-fast-and-efficient-core-data-import-on-ios-5%23new-answer', 'question_page');
}
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Post as a guest
N...
In Gradle, how do I declare common dependencies in a single place?
... in a parent script:
ext.libraries = [ // Groovy map literal
spring_core: "org.springframework:spring-core:3.1",
junit: "junit:junit:4.10"
]
From a child script, you can then use the dependency declarations like so:
dependencies {
compile libraries.spring_core
testCompile libra...
How to split a long regular expression into multiple lines in JavaScript?
...ood answers here, but for completeness someone should mention Javascript's core feature of inheritance with the prototype chain. Something like this illustrates the idea:
RegExp.prototype.append = function(re) {
return new RegExp(this.source + re.source, this.flags);
};
let regex = /[a-z...
Bulk insert with SQLAlchemy ORM
...erformance bulk inserts -
this is the whole reason SQLAlchemy offers the Core in addition to the
ORM as a first-class component.
For the use case of fast bulk inserts, the SQL generation and
execution system that the ORM builds on top of is part of the Core.
Using this system directly, ...
数据结构、算法复杂度一览表 - 更多技术 - 清泛网移动版 - 专注IT技能提升
...)
堆
时间复杂度
堆调整
最大值查找
Extract Max
Increase Key
插入
删除
合并
链表(已排序)
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O(1)
O(1)
O(n)
O(n)
O(1)
O(m+n)
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O(n)
O(n)
O(1)
O(1)
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数据结构、算法复杂度一览表 - 更多技术 - 清泛网移动版 - 专注IT技能提升
...)
堆
时间复杂度
堆调整
最大值查找
Extract Max
Increase Key
插入
删除
合并
链表(已排序)
-
O(1)
O(1)
O(n)
O(n)
O(1)
O(m+n)
链表(未排序)
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O(n)
O(n)
O(1)
O(1)
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数据结构、算法复杂度一览表 - 更多技术 - 清泛网移动版 - 专注IT技能提升
...)
堆
时间复杂度
堆调整
最大值查找
Extract Max
Increase Key
插入
删除
合并
链表(已排序)
-
O(1)
O(1)
O(n)
O(n)
O(1)
O(m+n)
链表(未排序)
-
O(n)
O(n)
O(1)
O(1)
...