Given a string, move all even positioned elements to end of string. While moving elements, keep the relative order of all even positioned and odd positioned elements same. For example, if the given string is "a1b2c3d4e5f6g7h8i9j1k2l3m4″, convert it to "abcdefghijklm1234567891234″ in-place and in O(n) time complexity.
Read full article from An in-place algorithm for String Transformation | GeeksforGeeks
