Function Basics

#include <iostream>
using namespace std;

// Function declaration
int add(int a, int b) {
    return a + b;
}

void greet(string name) {
    cout << "Hello, " << name << "!" << endl;
}

int main() {
    int result = add(5, 3);
    cout << "5 + 3 = " << result << endl;

    greet("Alex");

    return 0;
}