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  1. f=lambda s:s and f(s[:-1])+s[-1]*(s.count(s[-1])<3)
  2.  
  3. for s in '', 'xxxxx', 'abcabc', 'abcdabcaba', 'abacbadcba', 'aaabcbccdbabdcd':
  4. 	print s
  5. 	print f(s)
Success #stdin #stdout 0.01s 9016KB
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Standard input is empty
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xxxxx
xx
abcabc
abcabc
abcdabcaba
abcdabc
abacbadcba
abacbdc
aaabcbccdbabdcd
aabcbcdd
https://ideone.com/Igi8bC
language:
Python (cpython 2.7.16)
created:
7 years ago
visibility:
secret

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