subset_generation #326
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subset_generation #326
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generate all possible subset of size n of a given array of size r
christianbender
requested changes
Jul 22, 2018
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| # python program to print all subset combination of n element in given set of r element . | |||
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Your file must have the extension .py
christianbender
requested changes
Jul 23, 2018
| return | ||
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| # When no more elements are there to put in data[] | ||
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Remove useless empty lines. You can write this:
# comment
def foo():
pass
# comment
def boo():
passAbove each comment you can write a empty line. For example:
def combinationUtil(arr,n,r,index,data,i):
#Current combination is ready to be printed,
# print it
if(index== r):
for j in range(r):
print(data[j],end=" ")
print(" ")
return
# When no more elements are there to put in data[]
if(i>=n):
return
#current is included, put next at next
# location
data[index]=arr[i]
combinationUtil(arr,n,r,index+1,data,i+1)|
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| def printcombination(arr,n,r): |
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The parameter n is useless because you can use the function len(...) within this function.
| # Driver function to check for above function | ||
| arr = [10,20,30,40,50] | ||
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| r=3 |
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This variable r is useless because you can put the 3 right away in the function printcombination
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| # A temporary array to store all combination | ||
| # one by one | ||
| data = list(range(r)) |
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Instead of this line write data = [0] * n. Is more common.
I made all changes I could . What I mean is I removed all the empty space ....... There some comment extra if you feel removing those comments please do so yourself pls provide spacing as it should be
christianbender
requested changes
Jul 25, 2018
| #current is included, put next at next | ||
| # location | ||
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| data[index]=arr[i] |
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Please add spaces between all operators.
| # A temporary array to store all combination | ||
| # one by one | ||
| data = list(range(r)) | ||
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| data = [0]*r |
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pls review my changes |
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generate all possible subset of size n of a given array of size r