// Borrow in the subtraction of unsigned integers
 
#include <iostream>			// Header file for input and output
#include <bitset>           // Header for bitset (binary representation)

using std::cout;
using std::endl;

int main() {
	unsigned int a, b, c;			// unsigned integers

	// ----- No Borrow a > b
	a = 2;
	b = 1;
	c = a - b;						// a > b, no borrow
	cout << "a = " << a << ", b = " << b << endl;
	cout << "Result c: Decimal = " << c << " Binary = " << std::bitset<32>(c) << endl;
	cout << " ---------------------------------" << endl;

	// ----- Borrow a < b
	a = 1;
	b = 2;
	c = a - b;						// a < b, borrow
	cout << "a = " << a << ", b = " << b << endl;
	cout << "Result c: Decimal = " << c << " Binary = " << std::bitset<32>(c) << endl;

	return 0;
}