Challenge 1: Two Overloaded describe Functions — Possible Solution
====================================================================

#include <iostream>
#include <string>

void describe(int x) {
    std::cout << "An integer: " << x << std::endl;
}

void describe(std::string s) {
    std::cout << "A string: " << s << std::endl;
}

int main() {
    describe(42);
    describe(std::string("hello"));
    return 0;
}

Output:

    An integer: 42
    A string: hello

WHY THIS WORKS AS AN ANSWER
------------------------------
Both functions share the identical name describe but have genuinely
different parameter types (int vs. std::string), which the compiler
resolves at each call site based on the actual argument's type --
describe(42) matches the int overload and describe(std::string("hello"))
matches the string overload, each producing its own distinct message,
confirming overload resolution picked the correct function in both
cases.