Tip 1 : do join an online course
Tip 2 : Practise competitive questions
Tip 3 : do projects
Tip 1 : do projects
Tip 2 : Don't put false information on resume.



Input: 'arr' = [2, 2, 2, 2, 0, 0, 1, 0]
Output: Final 'arr' = [0, 0, 0, 1, 2, 2, 2, 2]
Explanation: The array is sorted in increasing order.



If the input tree is as depicted in the picture:
The Left View of the tree will be: 2 35 2
Personality based question.

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How do you remove whitespace from the start of a string?