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Cannot ping AWS EC2 instance
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Could try that as well. But ICMP sufficed for me
– Rakib
Mar 8 '17 at 16:26
1
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Truncate Two decimal places without rounding
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Use decimal for your values and this answer will work. It is unlikely to always work in any floating point representation.
– driis
Jun 29 '10 at 18:39
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Do you use NULL or 0 (zero) for pointers in C++?
...d of useless. Back in those days, it was accepted that you used 0 (zero) for null pointers.
21 Answers
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How can I profile C++ code running on Linux?
...bugger while it's being subjectively slow, there's a simple way to find performance problems.
Just halt it several times, and each time look at the call stack. If there is some code that is wasting some percentage of the time, 20% or 50% or whatever, that is the probability that you will catch it i...
How to find all combinations of coins when given some dollar value
I found a piece of code that I was writing for interview prep few months ago.
35 Answers
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What does {0} mean when initializing an object?
... that all unspecified members be default initialized, which means set to 0 for simple types.
Here is the relevant quote from the spec:
If there are fewer initializers in the list than there are members in the
aggregate, then each member not
explicitly initialized shall be
default-initiali...
Should I return EXIT_SUCCESS or 0 from main()?
...r C++ program. exit(1) can actually signal successful termination on VMS, for example.
If you're going to be using EXIT_FAILURE when your program fails, then you might as well use EXIT_SUCCESS when it succeeds, just for the sake of symmetry.
On the other hand, if the program never signals failure...
List of zeros in python [duplicate]
...ist which contains only zeros? I want to be able to create a zeros list for each int in range(10)
8 Answers
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Matplotlib scatter plot with different text at each data point
...tter plot and annotate data points with different numbers from a list.
So, for example, I want to plot y vs x and annotate with corresponding numbers from n .
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Checking for empty arrays: count vs empty
... @eliton: but still - even in if there is no or little difference in performance why use count if you dont need the count?
– prodigitalson
May 21 '12 at 13:16
4
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