#include <stdio.h>
#include <stdlib.h>

int main(int argc, char* argv[]) {
    // Declare and initialize an array with 2 "rows" and 3 "columns".
    int array_3d[2][3][4] = {
        {  // begin array_3d[0][…][…]
            {100, 101, 102, 103}, // begin array_3d[0][0][…]
            {104, 105, 106, 107}, // begin array_3d[0][1][…]
            {108, 109, 110, 111}  // begin array_3d[0][2][…]
        },
        {  // begin array_3d[1][…][…]
            {112, 113, 114, 115},
            {116, 117, 118, 119},
            {120, 121, 122, 123}
        }
    };
    // Could also work with all but the first dimension specified in declaration.
    // int array_3d[][3][4] = {  // OKAY
    
    // KEY POINT:  In memory, array_flat will be the same as array_3d
    int array_flat[24] = {  //
        100, 101, 102, 103,
        104, 105, 106, 107,
        108, 109, 110, 111,

        112, 113, 114, 115,
        116, 117, 118, 119,
        120, 121, 122, 123
    };
    // If I give you code that accesses a multi-dimensional array,
    // you should be able to give a declaration and initialization
    // that would make that code work.


    printf("array_3d[0][2][3] ======================== %d\n",
            array_3d[0][2][3]);
    printf("array_flat[(0 * 3 * 4) + (2 * 4) + (3)] == %d\n",
            array_flat[(0 * 3 * 4) + (2 * 4) + (3)]);

    // would not have worked with...
    // int array[6][4]  // BROKEN

    return EXIT_SUCCESS;
}
/*
OUTPUT:

array_3d[0][2][3] ======================== 111
array_flat[(0 * 3 * 4) + (2 * 4) + (3)] == 111

*/
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