Question

Subject: System Test & Verification

1. Draw the graph that represents this section of code

            X=1

            While x > y

                  Y = b +1

                  If (y = = 0)

                       break

                 else

                       y = y*2

                       X = X+1          

                 end

            end                 

Answer 1

`Hey,

Note: Brother in case of any queries, just comment in box I would be very happy to assist all your queries

here blue edges are for last use of data and black edges are for computed from

code

    1.            X=1
    2.                       While x > y
    3.                            Y = b +1
    4.                            If (y = = 0)
    5.                                break
                                else
    6.                                y = y*2
    7.                                X = X+1       
                                end  
                            end

Explanation

here we will call variables by their number in graph shown

first initialixe x1=1

then control transfers to x2 and condition is check

then control transfers to y3 and result is computed by b4 and 1_5
then again condition check at y6
if true then nothing
else    control transfers to y7
        y7 is computed ad y3 and 2

        then control transfers to x9
        and x9 is computed by x2 and 1

end

2 X b Y 1 6 Y Y 2 X

Kindly revert for any queries

Thanks.