Challenge 1 – Why don’t we get: Successfully? in C++

Difficulty x10

x5

This Challenge was proposed for the now defunct C/C++ programming list CWORLD in 1999.
The source code of the challenge has been updated to modern C++, but maintaining the essence of the challenge, which its original author wanted to transmit.

FMMD 3-VIII-2000
The challenge 0001
Why don’t we get:

The operation was performed:
Successfully.

Is it very easy?

Source Code

#include <iostream>


#define ADD(x,y)    ((x) + (y))
#define SUB(x,y)    ((x) - (y))
#define MUL(x,y)    ((x) * (y))
#define DIV(x,y)    ((x) / (y))


int main(void)
{
	int x, y, z;
	x = 5;
	y = 2;
	z = ADD(DIV(x, y), MUL(x, y)) * 2;
	std::cout << "\nThe operation was performed:\n";
	if (z=!0) {
		std::cout << "\n\tIncorrectly.\n";
	}
	else {
		std::cout << "\n\tSuccessfully.\n";
	}

	return 0;
}

AND FINALLY I CAN ONLY SAY …. BEST OF LUCK AND MAY THE BEST CODE WIN….

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Solution