Question

1. Perform a Desk check for the following pseudocode algorithm

L1: Program AddFirst5Numbers;

L2: Data Counter as Integer;

L3: Data Sum as Integer;

L4: Counter:= 1;

L5: Loop until Counter = 5

L6: Sum := Sum + Counter;

L7: counter := counter + 1;

L8: Next Loop;

L9: Output “The sum is”, Sum;

L9: End AddFirst5Numbers;

2. Write a pseudocode algorithm to print the following pattern

2 4 6 8 10

3. Using nested loops, write a pseudocode algorithm to print the following pattern

64 56 48 40 32

64 56 48 40

64 56 48

64 56

48

Answer 1

hello,

1) On performing the desk checking of first question, it shows that the value of variable 'Sum' is not initialized to zero which will lead to error in Line L6 since you are adding a value 'counter' to 'Sum' and 'Sum' has no defined value.

So i suggest you to add an extra statement given below, add it just after statement " Counter:= 1; "

Sum=0

2) Pseudocode for the pattern 2 4 6 8 10 is given below:-

Start Program

counter=1

loop until counter=5

Output (2*counter)

counter=counter+1

Next Loop

End Program

3) Pseudo Code for the pattern will be

Start Program

counter =5

loop until counter = 1

       inner_counter=1

       loop until inner_counter=counter

               Output(72-(inner_counter*8))

               inner_counter=inner_counter+1

               Next Loop;

       Next Line;

       counter=counter-1

       Next Loop;

End Program

I hope i was able to solve your problem to a greater extent, feel free to comment your queries i will surely respond to them. Please consider my efforts and please upvote my solution

Thanku