<ul><li>Efficient algorithms are crucial for solving problems quickly and with minimal resources.</li><li>Big O notation provides an upper bound on the time complexity of an algorithm.</li><li>Common algorithm complexities ranked from best to worst include linear search, binary search, selection sort, bubble sort, and merge sort.</li><li>Algorithms exist not only in computing but also in nature and biology, influencing processes such as biochemical regulation in the human body and decision-making in animals.</li></ul>

Understanding Algorithms: The Blueprint of Problem-Solving

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