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What is an algorithm really?
- An algorithm is essentially any process that leads to a solution, such as making coffee or solving a math problem.
- In computer science, an algorithm is a sequence of instructions that tells a computer how to solve a problem.
- The term 'algorithm' originated from the name of a 9th-century Persian mathematician, Al-Khwarizmi.
- Algorithms are crucial in computer science due to the need to provide machines with explicit step-by-step instructions.
- Algorithms exist in various forms, like greedy algorithms, divide and conquer, dynamic programming, and backtracking.
- Algorithms must have a clear endpoint to avoid infinite loops and ensure efficient operation.
- Some algorithms provide approximate solutions due to complexities, time constraints, and the nature of certain problems.
- Designing algorithms involves deeply understanding the problem, defining inputs and outputs, handling constraints and edge cases, choosing the right technique, developing the algorithm step-by-step, and testing and optimizing it.
- Algorithms are omnipresent in both computer science and daily life, guiding processes and decision-making.
- The human brain's algorithms showcase incredible real-time decision-making capabilities that surpass even the fastest computer programs.
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