Tip 1: Work on creating projects by yourself.
Tip 2: Contribute to open-source projects.
Tip 3: Identify real-world problems and try to solve at least a part of them; solving the whole problem is not necessary.
Tip 1: Ensure clear formatting with no colors.
Tip 2: Use a standard one-page template.


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Consider ARR = [1, 2, 3, 4, 4], the duplicate integer value present in the array is 4. Hence, the answer is 4 in this case.
A duplicate number is always present in the given array.
This was during my personal project discussion, and it was a managerial round in which the manager discussed my project work.

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What is recursion?