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...数组作为优先队列)
图G(V,E), V为顶点集, E为边集
O(|V|^2)
O(|V|^2)
O(|V|)
Bellman-Ford最短路径算法
图G(V,E), V为顶点集, E为边集
O(|V||E|)
O(|V||E|)
O(|V|)
排序算法(来源)
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时间复杂度
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Is there a way to perform “if” in python's lambda
In python 2.6 , I want to do:
16 Answers
16
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Can you control how an SVG's stroke-width is drawn?
...ment. I made a proposal to the SVG working group for this functionality in 2003, but it received no support (or discussion).
As I noted in the proposal,
you can achieve the same visual result as "inside" by doubling your stroke width and then using a clipping path to clip the object to itself, ...
Using jQuery to center a DIV on the screen
...
28 Answers
28
Active
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How to atomically delete keys matching a pattern using Redis
...
23 Answers
23
Active
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Undo working copy modifications of one file in Git?
...
2263
You can use
git checkout -- file
You can do it without the -- (as suggested by nimrodm), b...
How to format a float in javascript?
...n JavaScript, when converting from a float to a string, how can I get just 2 digits after the decimal point? For example, 0.34 instead of 0.3445434.
...
How to write multiple line string using Bash with variables?
...the command used (echo) is wrong.
Correct would be:
#!/bin/bash
kernel="2.6.39"
distro="xyz"
cat >/etc/myconfig.conf <<EOL
line 1, ${kernel}
line 2,
line 3, ${distro}
line 4 line
...
EOL
cat /etc/myconfig.conf
This construction is referred to as a Here Document and can be found in t...
Accessing JPEG EXIF rotation data in JavaScript on the client side
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262
If you only want the orientation tag and nothing else and don't like to include another huge j...