4. Given a piece of C++ or Java like code below. if ((k= 1) || (k== 2)) j= 2*k-1 if ((k==3) || (k==5)) j=3*k+1 if (k==4) j=4*k-1 if ((k==8) || (k==9) || (k==10)) j=k-2 a. Rewrite it using a C++/Java switch statement. Do not optimize the code, just do a direct translation to switch statement. No if statement can be used. b. Write one or two sentences to comment on the design C++/Java switch statement, in particular, describe what you think could be improved