name it

#include <time.h>
#include <stdio.h>

#define rowcol 506
#define repeats 200000

int main() {
    int arr1[rowcol][rowcol];
    clock_t t_begin, t_end;

    t_begin = clock();
    for (int x = 0;x < repeats;x++) {

        for (int i = 0;i < rowcol;i++) {
            for (int j = 0; j < rowcol; j++)
                arr1[i][j] = 8;
        }

    }
    t_end = clock();

    printf("\nOperator indexing took %f milliseconds\n", ((double)t_end - (double)t_begin) / CLOCKS_PER_SEC);

    int* ptr;


    t_begin = clock();
    for (int x = 0;x < repeats;x++) {
        ptr = arr1;
        for (int i = 0;i < (rowcol*rowcol);i++) {
            *ptr = 9;
            ptr++; //increment 4 bytes. this operator does more than you would think
        }
    }
    t_end = clock();

    printf("\nPointer arithmetic took %f milliseconds\n", ((double)t_end - (double)t_begin) / CLOCKS_PER_SEC);

    return 1;
}