Computer Science · May / June 2022 · Paper 22 · Question 2

An algorithm allows a user to input their password and checks that there are at least eight characters in the password. Then, the user is asked to re-input the password to check that both inputs are the same. The user is allowed three attempts at inputting a password of the correct length and a matching pair of passwords. The pre-defined function LEN(X) returns the number of characters in the string, X 01 Attempt ← 0 02 REPEAT 03 PassCheck ← TRUE 04 OUTPUT "Please enter your password " 05 INPUT Password 06 IF LEN(Password) < 8 07 THEN 08 PassCheck ← TRUE 09 ELSE 10 OUTPUT "Please re-enter your password " 11 INPUT Password2 12 IF Password <> Password 13 THEN 14 PassCheck ← FALSE 15 ENDIF 16 ENDIF 17 Attempt ← Attempt + 1 18 UNTIL PassCheck OR Attempt <> 3 19 IF PassCheck 20 THEN 21 OUTPUT "Password success" 22 ELSE 23 OUTPUT "Password fail" 24 ENDIF

Read automatically from the paper; the printed page above is exact.