BUG
def checkio(data): #print ('input', data) for i in data: #print ('i', i) if data.count(i) == 1: data.remove(i); #print ('count=', data.count(i), '-del') #print ('output', data) return data
This code run in strange ways: some times cycle for not run properly and drop some counts.
Here output for this code:
>>>checkio([1,2,3,2,1]) i 1 i 2 i 3 count= 0 -del i 1 <<< [1, 2, 2, 1] # ALL OK, NO BUG >>>checkio([1,2,3,4,5]) i 1 count= 0 -del i 3 count= 0 -del i 5 count= 0 -del <<< [2, 4] #??? BUG on even counts >>>checkio([1,2,3,4,5,6,1]) i 1 i 2 count= 0 -del i 4 count= 0 -del i 6 count= 0 -del <<< [1, 3, 5, 1] #??? BUG odd counts
From: https://py.checkio.org/mission/non-unique-elements/solve/
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