2D array for Reddit

#include <cstdio>
const int NUM_COLS=10;
const int NUM_ROWS=10;

int array2d[NUM_ROWS][NUM_COLS];

int main(){
    for(int row=0; row<NUM_ROWS; ++row){
        for(int col=0; col<NUM_COLS; ++col){
            array2d[row][col]=(row<<16)+col;
        }
    }
    for(int row=0; row<NUM_ROWS; ++row){
        for(int col=0; col<NUM_COLS; ++col){
            printf("Row: %x Col: %x Address: %p Value: %x\n", row, col, &array2d[row][col], array2d[row][col]);
        }
    }
    return 0;
}