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tell me what is meant by the term recursion
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recursion is a technique for solving a problem by breaking it down into smaller subproblems of the same type. it is commonly used in computer programming to make algorithms more efficient by repeating a process until a certain condition is met. for example, when a program encounters a problem that has a similar structure to the problem it has already solved, it can use recursion to reuse the solutions it has already found.
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