Please Help in the ques

#1

Please Help in the ques

#2

hello @anmolaggarwal.432

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.
string duplicateChar(string s)
{
    if (s.size() <= 1)
    {
        return s;
    }

    string ros = duplicateChar(s.substr(1));

    if (s[0] == ros[0])
    {
        return s[0] + string("*") + ros;
    }

    return s[0] + ros;
}
#3

I wrote the code again and instead i was using a pointer i in the function instead of substr why was it showing run -time error and i wwas just adding “" in the if instead of string("”) what is the difference

#4

@anmolaggarwal.432
pls share ur code

#5
#6

no that is not right.

u are never reducing the size of s , so base i.e s.size() < =1 will never become true and hence infinte recursion
’

#7

and what about string("*") and line 8

#8

that is fine.

#9

I am asking I didn’t add it like string ("*") I just add it normal it was showing error

#10

…

on cb ide ,even in normal case it should not give error , output might be weird becuase we are trying to add string("*") to char (s[0]).

which ide u r using?

#11

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