Question

I’m trying to initialise all elements of a 3D array “A”. The array consists of 2000x100x4 integer elements of the 3D array and is stored in row-major order. Each index at position [i,j,k] in “A” must be initialised with the value i*i*i + j*j*j.
How can I do this using for loops? Any suggestions? Thanks.

Answer 1

It’s not something hard to do:

int A[2000][100][4];
int i,j,k;
for (i=0;<2000;i++)
{
    for (j=0;j<100;j++)
    {
        for (k=0;k<4;k++)
        {
            A[i][j][k] = i*i*i + j*j*j;
        }
    }
}