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  1. def ReverseString(s, leftCharIndex, rightCharIndex):
  2.             #base case
  3.             if leftCharIndex >= rightCharIndex:
  4.                 return
  5.             #swap the charcters 
  6.             s[leftCharIndex], s[rightCharIndex] = s[rightCharIndex], s[leftCharIndex]
  7.  
  8.             return ReverseString(s, leftCharIndex+1, rightCharIndex-1)
  9.  
  10. s = ["h","e","l","l","o"]
  11. ReverseString(s, 0, len(s)-1)
  12. print(s)
Success #stdin #stdout 0.04s 9460KB
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Standard input is empty
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['o', 'l', 'l', 'e', 'h']
https://ideone.com/kxrCIH
language:
Python 3 (python  3.12)
created:
2 years ago
visibility:
secret

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