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C++ Program: NEED HELP! The following program prints the contents of the array b

ID: 3830354 • Letter: C

Question

C++ Program: NEED HELP!

The following program prints the contents of the array block_of_int row by row.


#include <iostream>
using namespace std;
int main()
{
     int block_of_int[4][3]={{1,2,3},{4,5,6},{7,8,9},{10,11,12}};
     for (int row = 0; row < 4; row++)
     {
   for (int column = 0; column < 3; column++)
   cout << block_of_int[row][column] << " ";
   cout << " ";
     }
     return 0;
}

STEP 1: Modify the program so that it prints the array colum by column; that is, the modified program should print the first column of block_of_int, followed by the second column, followed y the third.

STEP 2: Modify the orginal program so that you can change the entires in the block_of_int from the keyboard.

1 2 3 4 5 6 89 10 11 12 Press any key to continue

Explanation / Answer

#include <iostream>
using namespace std;
int main()
{
int block_of_int[4][3]={{1,2,3},{4,5,6},{7,8,9},{10,11,12}};
for (int column = 0; column < 3; column++)
{
for (int row = 0; row < 4; row++)
cout << block_of_int[row][column] << " ";
cout << " ";
}
return 0;
}

Output:

sh-4.2$ g++ -o main *.cpp                                                                                                                                                                                                                                              

sh-4.2$ main                                                                                                                                                                                                                                                           

1 4 7 10                                                                                                                                                                                                                                                               

2 5 8 11                                                                                                                                                                                                                                                               

3 6 9 12

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