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Why doesn't Dijkstra's algorithm work for negative weight edges?

... answered Oct 31 '12 at 13:45 amitamit 162k2323 gold badges204204 silver badges303303 bronze badges ...
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CSS: bolding some text without changing its container's size

... 154 I had the same problem, but got a similar effect with a little compromise, I used text-shadow in...
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Wrapping a C library in Python: C, Cython or ctypes?

... shared memory. – Oren Shemesh Apr 24 '12 at 12:51 1 @OrenShemesh Is there any further reading on...
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Design by contract using assertions or exceptions? [closed]

... 14 Answers 14 Active ...
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What is the most accurate way to retrieve a user's correct IP address in PHP?

... Dharman 16.7k1414 gold badges4343 silver badges9595 bronze badges answered Jan 9 '10 at 1:23 Alix AxelAlix Axel ...
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How to Create a circular progressbar in Android which rotates on it?

... answered Sep 10 '14 at 2:34 M. Reza NasirlooM. Reza Nasirloo 14.7k22 gold badges2020 silver badges3838 bronze badges ...
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Difference between partition key, composite key and clustering key in Cassandra?

...partition key, like the following eg: PRIMARY KEY((col1, col2), col10, col4)) You can perform query only by passing at least both col1 and col2, these are the 2 columns that define the partition key. The "general" rule to make query is you have to pass at least all partition key columns, then you ...
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Detect & Record Audio in Python

...t import pack import pyaudio import wave THRESHOLD = 500 CHUNK_SIZE = 1024 FORMAT = pyaudio.paInt16 RATE = 44100 def is_silent(snd_data): "Returns 'True' if below the 'silent' threshold" return max(snd_data) < THRESHOLD def normalize(snd_data): "Average the volume out" MAXIMUM...
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Dictionary vs Object - which is more efficient and why?

...on test_slots.py real 0m27.398s (using 'normal' object) real 0m16.747s (using __dict__) real 0m11.777s (using __slots__) Using CPython 2.6.2, including the named tuple test: $ python --version Python 2.6.2 $ time python test_obj.py && time python test_dict.py && time pyth...
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List of All Locales and Their Short Codes?

...| edited Jul 16 '13 at 17:49 answered Jul 7 '10 at 3:37 Sam...