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  1. result = []
  2. text = "aaabbbbcca"
  3. prev = ''
  4. for c in text:
  5.   if c == prev:
  6.    	result.append(result[-1] + c)
  7.   else:
  8.     result.append(c)
  9.     prev = c
  10.  
  11. print(result)  		
  12. # => ['a', 'aa', 'aaa', 'b', 'bb', 'bbb', 'bbbb', 'c', 'cc', 'a']
Success #stdin #stdout 0.02s 8912KB
comments (?)
stdin 
Standard input is empty
stdout 
['a', 'aa', 'aaa', 'b', 'bb', 'bbb', 'bbbb', 'c', 'cc', 'a']
https://ideone.com/9Ws1da
language:
Python 3 (python  3.12)
created:
3 years ago
visibility:
secret

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