Camel case of a given sentence

Simple solution: First method is to traverse sentence and one by one remove spaces by moving subsequent characters one position back and changing case of first character to capital. It takes O(n*n) time.

Efficient solution : We traverse given string, while traversing we copy non space character to result and whenever we encounter space, we ignore it and change next letter to capital.

Camel case of a given sentence : https://www.geeksforgeeks.org/camel-case-given-sentence/