Write a linear-time algorithm that sorts n distinct integers, each of which is between 1 and
500. Hint: Use a 500-element array. (Linear-time means your algorithm runs in time c*n + b,
where c and b are any constants that do not depend on n. For example, your algorithm can run
in time n, or time 2n + 1, or time 5n + 10, or time 100n + 6, but not time c*n*n = c*n².)
