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Why does Dijkstra's algorithm use decrease-key?
...O(log N)|O(log N)|O(log N)| O(M log N) | O(M log N)
Fibonacci Heap | O(1) |O(log N)| O(1) | O(M log N) | O(M + N log N)
As you can see, with most types of priority queues, there really isn't a difference in the asymptotic runtime, and the decrease-key version isn't likely to do much better...
How do I execute inserts and updates in an Alembic upgrade script?
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+100
What y...
Get query from java.sql.PreparedStatement [duplicate]
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165
This is nowhere definied in the JDBC API contract, but if you're lucky, the JDBC driver in que...
Best practice for nested fragments in Android 4.0, 4.1 (
I'm writing an app for 4.0 and 4.1 tablets, for which I do not want to use the support libraries (if not needed) but the 4.x api only therefore.
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Check if event exists on element [duplicate]
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144
$('body').click(function(){ alert('test' )})
var foo = $.data( $('body').get(0), 'events' ).c...
When to use , tag files, composite components and/or custom components?
...g <ui:include> and other templating techniques offered by Facelets 1.x.
1 Answer
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Javascript: Round up to the next multiple of 5
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edited Sep 23 '13 at 7:32
answered Sep 23 '13 at 7:03
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What is scope/named_scope in rails?
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213
A scope is a subset of a collection. Sounds complicated? It isn't. Imagine this:
You have User...
LEGO EV3 机器人按键控制 · App Inventor 2 中文网
...件层级结构
教程步骤
步骤1：项目设置
步骤2：界面设计
步骤3：连接控制
步骤4：电机配置
步骤5：功率控制
步骤6：程序逻辑
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