Certainly! Here are examples of recursive functions that use static and global variables in different programming languages:

1. Using Static Variable (C++):

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#include <iostream> int recursiveFunction(int n) {    static int count = 0; // Static variable retains its value between calls    if (n == 0) {        return count;    }    count++;    return recursiveFunction(n - 1); } int main() {    std::cout << recursiveFunction(5) << std::endl; // Output: 5    return 0; }

In this C++ example, the static variable count is used to count the number of recursive calls. Its value is retained between function calls, allowing us to keep track of the number of times the function is invoked.

1. Using Global Variable (Python):

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count = 0  # Global variable accessible to all functions def recursiveFunction(n):    global count    if n == 0:        return    count += 1    recursiveFunction(n - 1) recursiveFunction(5) print(count)  # Output: 5

In this Python example, the global variable count is incremented with each recursive call to count the number of recursive invocations. The global keyword is used to indicate that we want to modify the global variable within the function.

These examples demonstrate how static and global variables can be used in recursive functions to maintain state or accumulate values across multiple recursive calls. However, it's important to exercise caution when using global variables to avoid unintended side effects or potential conflicts with other parts of the program.