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  1. def subsets():
  2.     def solve(n):
  3.         k = 2 ** n
  4.         out = [{}]
  5.         for i in range(1, k):
  6.             s = []
  7.             for j in range(0, n):
  8.                 if i & (1<<j):
  9.                     s.append(j+1)
  10.             out.append(s)
  11.  
  12.         working_set = list(map(lambda x: set(x), out))
  13.  
  14.         for element in working_set:
  15.  
  16.         	print(element)
  17.     n = 3
  18.     solve(n)
  19. subsets()
  20.  
Success #stdin #stdout 0.03s 9660KB
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Standard input is empty
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set()
{1}
{2}
{1, 2}
{3}
{1, 3}
{2, 3}
{1, 2, 3}
https://ideone.com/gDwrVW
Working_set with bitwise
language:
Python 3 (python  3.9.5)
created:
1 year ago
visibility:
secret

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