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const char* concatenation
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In your example one and two are char pointers, pointing to char constants. You cannot change th...
Practical non-image based CAPTCHA approaches?
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103 Answers
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adding noise to a signal in python
I want to add some random noise to some 100 bin signal that I am simulating in Python - to make it more realistic.
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What is the proper #include for the function 'sleep()'?
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edited Dec 10 '19 at 10:16
Daniel Selvan
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Does it make sense to use “as” instead of a cast even if there is no null check? [closed]
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edited Jan 27 '10 at 23:56
answered Jan 26 '10 at 14:01
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How to quit scala 2.11.0 REPL?
In the last version of scala (2.10.3) REPL, I can type exit to quit from REPL. However, in Scala 2.11.0 this doesn't work.
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find() with nil when there are no records
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Yes, just do:
Challenge.find_by_id(10)
For Rails 4 and 5:
Challenge.find_by(id: 10)
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Multiple select statements in Single query
...re is even a far better way, see my answer.
– Pentium10
Feb 13 '10 at 9:45
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"Operand should cont...
Most efficient way to store thousand telephone numbers
...t most 0...01, for how many phone numbers the first m bits are at most 0...10, etcetera, up to the count of phone numbers for which the first m bits are 1...11 - this last count is 1000(decimal). There are 2^m such counts and each count is at most 1000. If we omit the last one (because we know it is...
Possible to access the index in a Hash each loop?
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answered Jan 18 '10 at 2:38
YOUYOU
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