Accepted solution

Encryption (Hacker Rank)

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Source code

// Complete the encryption function below.

string encryption(string s)

{

   int len= ceil(sqrt(s.size()));

    string ans;  

    for(int i=0; i<len; i++)

    {

        string str;

        for(int j=i;j<s.size();j+=(len))

        {

           str += s[j];

        }

        ans+= str+' ';

    }

  return ans;

}
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