68. 4-bit Comparator

How do you plan to solve it?

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

        wire [7:0] min01, max01;
        wire [7:0] min23, max23;
            // Pairwise compare (a,b)
            // TODO: set max01 as the larger of a and b
            assign max01 = (a > b) ? a : b;
            // TODO: set min01 as the smaller of a and b
            assign min01 = (a < b) ? a : b;

            // Pairwise compare (c,d)
            // TODO: set max23 as the larger of c and d
            assign max23 = (c > d) ? c : d;
            // TODO: set min23 as the smaller of c and d
            assign min23 = (c < d) ? c : d;

            // Final reduce across pairs
            // TODO: set max_o as the larger of max01 and max23
            assign max = (max01 > max23) ? max01 : max23;
            // TODO: set min_o as the smaller of min01 and min23
            assign min = (min01 < min23) ? min01 : min23;
endmodule