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AI Features

Recursive Problems

Explore the concept of recursion in Python by learning to solve problems that break down into smaller similar subproblems. Understand recursive functions with examples such as factorial calculation, digit summation, and generating combinations. Gain insights into base cases, recursive calls, and the flow of recursive functions to build foundational programming skills.

Problem as similar subproblems

In the case of a problem that can be solved by breaking it down into similar subproblems, the computation of a function is described in terms of the function itself.

Suppose we want to calculate the factorial value of nn: n!=n(n1)(n2)(n3)...21\qquad \qquad \qquad \qquad \qquad \qquad n! = n * (n - 1) * (n - 2) * (n - 3) * ... * 2 * 1 ...