#WHAT is the importance of recursion? And why does the function go back after completing every call.

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dense minnow
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Qs 1 part b

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quartz solarBOT
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<@&987246399047479336> please have a look, thanks.

quartz solarBOT
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Recursion is an important concept in programming as it allows a function to call itself repeatedly until a certain condition is met. It provides an elegant and concise way to solve complex problems that can be naturally divided into smaller subproblems.

The importance of recursion lies in its ability to break down a complex problem into simpler and more manageable subproblems. By solving these smaller subproblems, the function can eventually solve the original problem.

Recursion also promotes code reusability as the same function can be called multiple times with different inputs, allowing for efficient and modular code design.

Regarding your second question, when a recursive function is called, it goes back after completing every call due to the nature of the call stack. Each time a recursive function is invoked, a new frame is added to the call stack, which contains information about that particular invocation. When the base case (the condition that stops the recursion) is reached, the function starts returning back through each previous frame on the call stack until it reaches the initial invocation.

This process of returning back through each frame allows for proper execution and handling of intermediate results at each level of recursion. Without this mechanism, recursive functions would not be able to properly return values or maintain their state throughout multiple recursive calls.

dense minnow
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Thank you so much