68. 4-bit Comparator

How do you plan to solve it?

/*Write your code here*/
module maxmin4(
input  [3:0] a,b,c,d,
output [3:0] max,min 
);


wire [3:0] max_1, min_1, max_2, min_2;

assign max_1 = (a > b) ? a:b;
assign min_1 = (a < b) ? a:b;
assign max_2 = (c > d) ? c:d;
assign min_2 = (c < d) ? c:d;
assign max   = (max_1 > max_2) ? max_1:max_2;
assign min   = (min_1 < min_2) ? min_1:min_2;


endmodule