66. Demultiplexer

How do you plan to solve it?

/*Write your code here*/
module demux1to4(
    input d,
    input [1:0]s,
    output [3:0]y);

    assign y[0] = d & (~s[1] & ~s[0]);
    assign y[1] = d & (~s[1] &  s[0]);
    assign y[2] = d & ( s[1] & ~s[0]);
    assign y[3] = d & ( s[1] &  s[0]);

endmodule