This repository contains solutions to various Python coding challenges from HackerRank. These problems help strengthen my logical thinking, DSA (Data Structures & Algorithms) skills, and Python ...

Abstract: Sparse arrays, such as nested arrays and coprime arrays, can achieve a high number of degrees of freedom (DOFs) for direction of arrival (DOA) estimation with a reduced number of antennas.

Abstract: Large‐aperture antenna arrays promise fine angular resolution, but their dense layouts usually lead to prohibitive cost and design complexity. Sparse arrays present a compelling alternative, ...

Prompts the user for a positive integer input (<100) and validates it. The function will continue to prompt the user until a valid input is received.