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  1. def setOf(a):
  2. r=[a[0]]
  3. for x in a[1:]:
  4. if not (x in r):
  5. r+=[x]
  6. return r
  7.  
  8. z=setOf([1,2,3,1,2,3,11,11,22,22])
  9. print(z)
  10.  
Success #stdin #stdout 0.02s 9196KB
stdin
Standard input is empty
stdout
[1, 2, 3, 11, 22]