2. Fan-Out Wire

How do you plan to solve it?

module top_module(
    // Declare Inputs and outputs here
    input a,
    output y1,
    output y2,
    output y3
);
    // Module functionality here
    wire w;
    assign w = a;
    assign y1 = w;
    assign y2 = w;
    assign y3 = w;

endmodule