Confused on how to declare formulas

[BlueCOCO1]

Given two integers, say a and b, the maximum and minimum can be determined with the following formulas:
max⁡〖= (a+b+ |a-b|)/2〗, min⁡〖= (a+b-|a-b|)/2〗

I'm writing a C++ program that will prompt for and accept two integer values via the keyboard.
The first of these values should be stored in variable a and the second in b. The program should then compute the max and min of a and b using the above formulas. The values of a, b, max, and min should be displayed on the screen with descriptive literals. I need to use the cmath header and the abs() function for calculating the absolute value (| |). How do I declare the formulas? I looked it up but all I see is arrays and I can't use that.

  #include <iostream>         // cout
#include <cmath>           // abs
using namespace std;

int main()
{
	// Variables for a and b
	int fmax = 'a'; 'b';
	int fmin = 'b'; 'a';
	

	// Formulas for fmax and fmin
	fmax = (a + b + abs (a - b)) / 2;
	fmin = (a + b - abs (a - b) ) / 2;
	
	cout << "Enter an integer a (positive or negative): \n";
	cout << "Enter an integer b (positive or negative): \n";

[Ganado]

C++ does not work like Excel; you can't assign the variable a symbolic value or some formula in advance (or at least, if you wanted to do something similar to that, it would take a lot more effort).

Each instruction is done sequentially.

#include <iostream>         // cout
#include <cmath>           // abs
using namespace std;

int main()
{
	int a {};
	int b {};
	cout << "Enter an integer a (positive or negative): \n";
	cin >> a;
	cout << "Enter an integer b (positive or negative): \n";
	cin >> b;

	// Formulas for fmax and fmin
	int fmax = (a + b + abs (a - b)) / 2;
	int fmin = (a + b - abs (a - b)) / 2;
	
	cout << "Max: " << fmax << ", Min: " << fmin << '\n';
}

[seeplus]

Consider:

#include <string>
#include <limits>
#include <iostream>
#include <cmath>

template<typename T = int>
auto getNum(const std::string& prm)
{
	const auto notsp {[&]() {while (std::isspace(static_cast<unsigned char>(std::cin.peek())) && std::cin.peek() != '\n') std::cin.ignore(); return std::cin.peek() != '\n'; }};
	T n {};

	while ((std::cout << prm) && (!(std::cin >> n) || notsp())) {
		std::cout << "Not a number\n";
		std::cin.clear();
		std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
	}

	std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
	return n;
}

int main()
{
	const auto a {getNum("Enter an integer a (positive or negative): ")};
	const auto b {getNum("Enter an integer b (positive or negative): ")};
	const auto max {(a + b + std::abs(a - b)) / 2.0};
	const auto min {(a + b - std::abs(a - b)) / 2.0};

	std::cout << "\na: " << a << ", b: " << b << ", min: " << min << ", max: " << max << '\n';
}

[lastchance]

#include <iostream>
#include <cmath>
using namespace std;

int main()
{
   int a, b;
   cout << "Enter two whole numbers: ";
   cin >> a >> b;
   cout << "Max: " << ( a + b + abs( a - b ) ) / 2 << '\n'
        << "Min: " << ( a + b - abs( a - b ) ) / 2 << '\n';
}