#include <stdio.h>
int main() {
//initialize 2d array.
// <type> <arr><rows><columns> = {{row1, col1, ....}, {row2, col2, ....}}
int arr[2][2] = {{12,34}, {56, 32}}; // 2d array initialized
int i, j; // counter variables
for (i=0; i<2; i++) { // accessing 1d
printf("\n");
for(j=0; j<2; j++) {
printf("%d\t", arr[i][j]); // accessing 2d or the innermost array.
}
};
}