gcc column.c -o column gcc row.c -o row $ time ./row real 0m1.388s user 0m0.943s sys 0m0.444s ** $ time ./column real 0m4.538s user 0m4.068s sys 0m0.468s $ ./inspect 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 $