what is c++ function
#include <iostream>
// Function declaration
int addNumbers(int a, int b);
int main() {
// Function call
int result = addNumbers(5, 7);
// Output the result
std::cout << "Sum: " << result << std::endl;
return 0;
}
// Function definition
int addNumbers(int a, int b) {
// Function body
int sum = a + b;
// Return statement
return sum;
}