displaying a simple array

[Billyin4C]

task: to display array first column by column then row by row.
?: is this correct?

 #include <iostream>
using namespace std;

int main()
{
	int nums[2][4] = { { 17, 24, 86, 35 },
	{ 23, 36, 10, 12 } };

	int row = 0;
	int column = 0;

	
	//display column by column
	while (column < 4)
	{
		for (int row = 0; row < 2; row++)
		{
			cout << "Numbers (column): " << nums[row][column]  << endl;
		}

		column++;
	}
	cout << endl;

	//display row by row
	while (row < 2)
	{
		for (column = 0; column < 4; column++)
		{
			cout << "Numbers (row): " << nums[row][column] << endl;
		}
		row++;
	}
	cout << endl;
	system("pause");

	return 0;
}	//end of main function 

[18hRX9L8]

system("pause");

Obligatory http://www.cplusplus.com/forum/beginner/1988/ and http://www.cplusplus.com/forum/articles/11153/ .

Why are you using a while loop and then a for loop? Why not two for loops?

for (std::size_t column = 0; column < MAX_COLUMNS; column++) {
    for (std::size_t row = 0; row < MAX_ROWS; rows++) {
        // by column
    }
}

for (std::size_t row = 0; row < MAX_ROWS; rows++) {
    for (std::size_t column = 0; column < MAX_COLUMNS; column++) {
        // by row
    }
}

Also, instead of using magic numbers, define constants like MAX_ROWS and MAX_COLUMNS and reference those instead. That improves code readability.

[Billyin4C]

The instructions say "complete the program using a while statement in the outer loops and a for statement in the nested loops."