64. Full Adder

How do you plan to solve it?

// Half Adder primitive
module half_adder (
    input  a, b,
    output sum, carry
);
    // Write code here
    assign sum   = a^b;
    assign carry = a&b;

    
endmodule

// Full Adder using 2 Half Adders
module full_adder_struct (
    input  a, b, cin,
    output sum, cout
);

    wire ha_s, ha_c, c;

    // Write code here
    half_adder half_adder_1(a,b,ha_s,ha_c);
    half_adder half_adder_2(ha_s,cin,sum,c);
    or or1(cout,c,ha_c);


endmodule