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Simple basic explanation of a Distributed Hash Table (DHT)
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3 Answers
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How to trace the path in a Breadth-First Search?
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# graph is in adjacent list representation
graph = {
'1': ['2', '3', '4'],
'2': ['5', '6'],
'5': ['9', '10'],
'4': ['7', '8'],
'7': ['11', '12']
}
def bfs(graph, start, end):
# maintain a queue of paths
queue = []
# push the first path i...
How does IPython's magic %paste work?
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138
You can't copy to IPython directly. This are the steps:
Copy the lines you want to copy into ...
Is HttpClient safe to use concurrently?
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SQL: How to get the count of each distinct value in a column?
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318
SELECT
category,
COUNT(*) AS `num`
FROM
posts
GROUP BY
category
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Difference between dispatch_async and dispatch_sync on serial queue?
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How to tell if rails is in production?
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33
2 easy ways:
tail -f log/production.log
if there are entries populating that log after you h...
Sublime Text 2 and 3: open the same file multiple times
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30
Go into the pane you want to see the file in.
Type Ctrl-p (Mac: ⌘-p) to get the list of file...