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,
                output [3:0] min);
    wire [3:0] max_ab = (a > b) ? a : b;
    wire [3:0] max_cd = (c > d) ? c : d;
    wire [3:0] min_ab = (a <b) ? a : b;
    wire [3:0] min_cd = (c <d ) ? c :d;

    assign max = (max_ab > max_cd) ? max_ab : max_cd;
    assign min = (min_ab < min_cd) ? min_ab : min_cd;

endmodule