Have to print the array on the screen. Find the total, sum of all the rows and s

Question

Have to print the array on the screen. Find the total, sum of all the rows and sum of all the columns and print. c++ program.

SO FAR I HAVE:

#include <iostream>
#include <iomanip>

using namespace std;

int main() {
   const int NUM_ROWS = 4;
   const int NUM_COLS = 5;
   int total;
   //int num_array[NUM_ROWS][NUM_COLS];
   const int num_array[4] [5] = {
       {2, 4, 6, 8, 10},
       {12, 14, 16, 18, 20},
       {22, 24, 26, 28, 30},
       {32, 34, 38, 38, 40},
   };
   for (int index = 0; index < [4][5]; index++) {
       cout << num_array[index] << endl;
   }
   for (int row = 0; row < NUM_ROWS; row++) {
       total = 0;
      
       //Sum a row
       for (int col = 0; col < NUM_COLS; col++)
           total += num_array[row] [col];

       cout << (row + 1) << total << endl;

       }
   for (int col = 0; col < NUM_COLS; col++) {
       total = 0;

       //Sum a column
       for (int row = 0; row < NUM_ROWS; row++)
           total += num_array[row] [col];
       cout << (col + 1) << total << endl;
   }
}

Explanation / Answer

// C++ total of 2d array and sum of each row and column

#include <iostream>
#include <iomanip>

using namespace std;

int main()
{
    const int NUM_ROWS = 4;
    const int NUM_COLS = 5;
    int total = 0;

    //int num_array[NUM_ROWS][NUM_COLS];
    const int num_array[4] [5] =
    {
        {2, 4, 6, 8, 10},
        {12, 14, 16, 18, 20},
        {22, 24, 26, 28, 30},
        {32, 34, 38, 38, 40},
    };

    cout << "2D Array: ";
    for (int i = 0; i < NUM_ROWS; i++)
    {
      for (int j = 0; j < NUM_COLS; ++j)
      {
        cout << num_array[i][j] << " ";

      }
      cout << endl;
    }

    cout << endl << endl;

    for (int row = 0; row < NUM_ROWS; row++)
    {
      int row_sum = 0;
      
        for (int col = 0; col < NUM_COLS; col++)
        {
            total = total + num_array[row][col];
            row_sum = row_sum + num_array[row][col];
        }
        cout << "Sum row " << (row + 1) << ": "<< row_sum << endl;
    }

    cout << endl << endl;

    for (int col = 0; col < NUM_COLS; col++)
    {
        int column_sum = 0;

        for (int row = 0; row < NUM_ROWS; row++)
        {
            column_sum = column_sum + num_array[row][col];
        }
        cout << "Sum column " << (col + 1) << ": "<< column_sum << endl;
    }

    cout << endl << endl;

    cout << "Total: " << total << endl;
    return 0;
}

/*
output:

2D Array:
2 4 6 8 10
12 14 16 18 20
22 24 26 28 30
32 34 38 38 40

Sum row 1: 30
Sum row 2: 80
Sum row 3: 130
Sum row 4: 182

Sum column 1: 68
Sum column 2: 76
Sum column 3: 86
Sum column 4: 92
Sum column 5: 100

Total: 422
*/

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