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  1. class Set:
  2.  
  3.     set = []
  4.  
  5.     def __init__(self,Thelist):
  6.         self.set = Thelist
  7.  
  8.     def __sub__(self,other):
  9.         out = []
  10.         for el in self.set:
  11.             found = False
  12.             for el2 in other.set:
  13.                 if el == el2:
  14.                    found = True
  15.                    break
  16.             if found is False:
  17.                out.append(el)
  18.         return out
  19.  
  20.     def __add__(self,other):
  21.         out = []
  22.         for i in other.set:
  23.             out.append(i)
  24.         for el in self.set:
  25.             found = False
  26.             for el2 in other.set:
  27.                 if el == el2:
  28.                    found = True
  29.                    break
  30.             if found is False:
  31.                out.append(el)
  32.         out.sort()
  33.         return out
  34.  
  35.  
  36.  
  37.     def __and__(self,other):
  38.         out = []
  39.         for el in self.set:
  40.             found = False
  41.             for el2 in other.set:
  42.                 if el == el2:
  43.                     found = True
  44.                     break
  45.             if found is True:
  46.                 out.append(el)
  47.         return out
  48.  
  49. def fn():
  50.     list1 = [1,2,3,4,5,6,7,102]
  51.     print(list1)
  52.     list2 = [10,101,2,3,102,202]
  53.     list2.sort()
  54.     print(list2)
  55.     set1 = Set(list1)
  56.     set2 = Set(list2)
  57.     print("Intersect: ",set1&set2)
  58.     print("Union",set1+set2)
  59.     print("Diff",set1-set2)
  60. fn()
Success #stdin #stdout 0.03s 9660KB
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[1, 2, 3, 4, 5, 6, 7, 102]
[2, 3, 10, 101, 102, 202]
Intersect:  [2, 3, 102]
Union [1, 2, 3, 4, 5, 6, 7, 10, 101, 102, 202]
Diff [1, 4, 5, 6, 7]
https://ideone.com/e9weVD
class.sets Union.Diff.Intersect
language:
Python 3 (python  3.9.5)
created:
1 year ago
visibility:
secret

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