Question

It is a C++ assignment. i wrote the program but it gives me error. please i need help to fix my following assignment. i posted the assignment too.

Answer 1

Here is code:

#include <iostream>

#include <stdlib.h>

using namespace std;

int main()

{

int magic[3][3] = {{4, 9, 2}, {3, 5, 7}, {8, 1, 6}};

int sumRow, sumCol;

int diag1 = 0, diag2 = 0;

//

// ─────────────────────────────────────────────────────── CHECKING DIAGONALS ─────

//

for (int i = 0; i < 3; i++)

{

diag1 += magic[i][i];

diag2 += magic[i][2 - i];

}

if (diag1 != 15 || diag2 != 15)

{

cout << "Invalid Magic numbers\n";

exit(0);

}

//

// ────────────────────────────────────────────────── CHEKING ROW AND COLUMNS ─────

for (int i = 0; i < 3; i++)

{

sumRow = 0;

sumCol = 0;

for (int j = 0; j < 3; j++)

{

sumRow += magic[i][j];

sumCol += magic[j][i];

}

if (sumRow != 15 || sumCol != 15)

{

cout << "Invalid Magic numbers\n";

exit(0);

}

}

cout << "Valid magic numbers!\n";

}

Output: