Computers and Technology, 08.10.2021 05:00 zoeybuch5

1. The following pseudocode tests how quickly a user can type a given sentence without making any mistakes. The statement time. clockTick() returns the number of seconds elapsed since the program started followed by the number of characters in the sentence typed.

1 sentence ← "The quick brown fox jumped over the lazy dog"

2 n ← LEN(sentence)

3 OUTPUT "Sentence to type: " + sentence

4

5 mistakeMade ← False

6

7 OUTPUT "Press Enter when you're ready to start typing! Press Enter when finished"

8 ready ← USERINPUT

9 OUTPUT "Go!"

10

11 startTime ← time. clockTick()

12 mySentence ← USERINPUT

13 finishTime ← time. clockTick()

14 totalTime ← finishTime - startTime

15

16 IF mySentence ≠ sentence THEN

17 mistakeMade ← True

18 ENDIF

19 IF mistakeMade THEN

20 OUTPUT "You made one or more errors"

21 ELSE

22 OUTPUT totalTime

23 OUTPUT n

24 ENDIF

(a) What type of variable is each of the following? [4]

(i) mistakeMade

(ii) n

(iii) totalTime

(iv) sentence

(b) What does line 16 do? [2]

(c) Alter the program so that instead of storing the sentence “The quick brown fox jumped over the lazy dog”, the user can enter the sentence on which they will be timed. [3]

Answers: 2

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