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how to clear the screen in python [duplicate]
... on Bash shell can help. Windows does not have equivalent. You can do
import os
os.system('cls') # on windows
or
os.system('clear') # on linux / os x
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Is there a math nCr function in python? [duplicate]
...program calculates nCr in an efficient manner (compared to calculating factorials etc.)
import operator as op
from functools import reduce
def ncr(n, r):
r = min(r, n-r)
numer = reduce(op.mul, range(n, n-r, -1), 1)
denom = reduce(op.mul, range(1, r+1), 1)
return numer // denom # o...
Page vs Window in WPF?
...age and a Window in WPF when you are adding a new file in the Solution Explorer?
3 Answers
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How to clear ostringstream [duplicate]
... reset the string to be empty; the second line is required to clear any error flags that may be set. If you know that no error flags are set or you don't care about resetting them, then you don't need to call clear().
Usually it is easier, cleaner, and more straightforward (straightforwarder?) jus...
What is the difference between @PathParam and @QueryParam
... RS Specification
@PathParam - Binds the value of a URI template parameter or a path segment containing the template parameter to a resource method parameter, resource class field, or resource class bean property.
@Path("/users/{username}")
public class UserResource {
@GET
@Produce...
How to convert list to string [duplicate]
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By using ''.join
list1 = ['1', '2', '3']
str1 = ''.join(list1)
Or if the list is of integers, convert the elements before joining them.
list1 = [1, 2, 3]
str1 = ''.join(str(e) for e in list1)
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How can I print each command before executing? [duplicate]
What is the best way to set up a Bash script that prints each command before it executes it?
4 Answers
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PHP - add item to beginning of associative array [duplicate]
How can I add an item to the beginning of an associative array? For example, say I have an array like this:
5 Answers
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How to sort ArrayList in decreasing order?
How to sort an ArrayList<Long> in Java in decreasing order?
14 Answers
14
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Difference between exit() and sys.exit() in Python
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exit is a helper for the interactive shell - sys.exit is intended for use in programs.
The site module (which is imported automatically during startup, except if the -S command-line option is given) adds several constants to the built-in n...