[HDLBits] Conditional

Given four unsigned numbers, find the minimum. Unsigned numbers can be compared with standard comparison operators (a < b). Use the conditional operator to make two-way min circuits, then compose a few of them to create a 4-way min circuit. You'll probably want some wire vectors for the intermediate results.

module top_module (
    input [7:0] a, b, c, d,
    output [7:0] min);//
    wire [7:0] res1,res2;
	assign res1= a<b?a:b;
    assign res2= c<d?c:d;
    assign min=res1<res2?res1:res2;
    // assign intermediate_result1 = compare? true: false;

endmodule