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  1. def count_overlapping(string, pattern):
  2.     count = 0
  3.     start = -1
  4.     while True:
  5.         start = string.find(pattern, start + 1)
  6.         if start < 0:
  7.             return count
  8.         count += 1
  9.  
  10. mystr = '^_^_^-_-'
  11. print(count_overlapping(mystr, '^_^'))
  12. print(count_overlapping(mystr, '-_-'))
  13. print(count_overlapping(mystr, ''))
  14. print(count_overlapping(mystr, 'x'))
Success #stdin #stdout 0.02s 9276KB
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https://ideone.com/dWTdSw
language:
Python 3 (python  3.9.5)
created:
6 years ago
visibility:
public

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