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Weighted random numbers
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1) calculate the sum of all the weights
2) pick a random number that is 0 or greater and is less than the sum of the weights
3) go through the items one at a time, subtracting their weight from your random number, until you get the item where the random number is less than that item's weight
Ps...
Length of generator output [duplicate]
...f you have a lazy infinite generator? For example:
def fib():
a, b = 0, 1
while True:
a, b = b, a + b
yield a
This never terminates but will generate the Fibonacci numbers. You can get as many Fibonacci numbers as you want by calling next().
If you really need to know t...
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...备忘Windbg：[||system_index ]|process_index:thread_index>system_index：0，本地活动的用户态调试；1，内核转储文件thread_index：kd，内核...Windbg：
[ ||system_index ] | process_index : thread_index>
system_index：0，本地活动的用户态调试；1，内核转储文件...
How to change ViewPager's page?
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answered Sep 16 '11 at 14:40
Mark AllisonMark Allison
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How can I convert tabs to spaces in every file of a directory?
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Jun 19 '12 at 4:35
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How is set() implemented?
... AJP
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answered Oct 16 '10 at 14:47
Justin EthierJustin Ethier
11...
renamed heroku app from website, now it's not found
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answered Sep 30 '11 at 21:04
James WardJames Ward
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How do I show an open file in eclipse Package Explorer?
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answered Jun 13 '11 at 18:08
Konstantin KomissarchikKonstantin Komissarchik
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Determine Whether Integer Is Between Two Other Integers?
... given integer is between two other integers (e.g. greater than/equal to 10000 and less than/equal to 30000 )?
11 Answer...
how to check if List element contains an item with a Particular Property Value
...e more precise, I want to check if there exists pricePublicModel.Size == 200 ? Also, if this element exists, how to know which one it is?
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