Recursion codes of the string

#1

how should i solve this question , which approach will help me ???

#2

hi @deepshreyamishra301_1918130c8477386b,
In this question, the idea is to put a recursive function on the Array and print * if we got any repetitive character.

Algorithm:

  • Obtain the result for substring starting at index 1. Store this in another string , say ‘ros’ .
  • Check whether the first character of current string and first character of ros are same.
  • If so return , add a " * " to the new result and concatenate as s[0] + " * " + ros.
  • Else simply return s[0] + ros.

refer here for implementation

#3

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