Question 6 – Subprograms - Questions

A logistics warehouse manages the dispatch of items using two sorting bays. The pseudocode below is used to assign tracking numbers to the packages in these bays.

1
2 SET bay1 TO ["", "", "", "", "", ""]
3 SET index1 TO 0
4 SET bay2 TO ["", "", "", "", "", ""]
5 SET index2 TO 0
6 SET status TO "Normal"
7 SET loaded TO False
8
9 [MISSING FUNCTION HEADER]
10 BEGIN FUNCTION
11     BOOLEAN success
12     SET success TO False
13     IF (pBay = 1) THEN
14         IF (index1 < 6) THEN
15             SET bay1[index1] TO pPackage
16             SET index1 TO index1 + 1
17             SET success TO True
18         END IF
19     ELSE
20         IF (pBay = 2) THEN
21             IF (index2 < 6) THEN
22                 SET bay2[index2] TO pPackage
23                 SET index2 TO index2 + 1
24                 SET success TO True
25             END IF
26         END IF
27     END IF
28     SEND "success:" & success TO DISPLAY
29     RETURN (success)
30 END FUNCTION
31
32 SEND "Enter bay number and package ID:" TO DISPLAY
33 RECEIVE bayNumber FROM (INTEGER)KEYBOARD
34 RECEIVE packageID FROM (STRING)KEYBOARD
35 [MISSING FUNCTION CALL]
36

The algorithm is incomplete.

Line 9 should declare the function header (including name and formal parameters).
Line 35 should assign the result of calling the function to the existing global variable loaded, passing the correct arguments.

Subprograms Questions

Practise Edexcel GCSE Computer Science Subprograms with exam-style questions for GCSE Computer Science. 29 questions covering Built-in and user-devised subprograms, Functions versus procedures, and Global and local variables, matched to the Edexcel GCSE Computer Science (1CP2) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

1 2 SET bay1 TO ["", "", "", "", "", ""] 3 SET index1 TO 0 4 SET bay2 TO ["", "", "", "", "", ""] 5 SET index2 TO 0 6 SET status TO "Normal" 7 SET loaded TO False 8 9 [MISSING FUNCTION HEADER] 10 BEGIN FUNCTION 11 BOOLEAN success 12 SET success TO False 13 IF (pBay = 1) THEN 14 IF (index1 < 6) THEN 15 SET bay1[index1] TO pPackage 16 SET index1 TO index1 + 1 17 SET success TO True 18 END IF 19 ELSE 20 IF (pBay = 2) THEN 21 IF (index2 < 6) THEN 22 SET bay2[index2] TO pPackage 23 SET index2 TO index2 + 1 24 SET success TO True 25 END IF 26 END IF 27 END IF 28 SEND "success:" & success TO DISPLAY 29 RETURN (success) 30 END FUNCTION 31 32 SEND "Enter bay number and package ID:" TO DISPLAY 33 RECEIVE bayNumber FROM (INTEGER)KEYBOARD 34 RECEIVE packageID FROM (STRING)KEYBOARD 35 [MISSING FUNCTION CALL] 36

Subprograms Questions