Decomposition and algorithm practice questions - EduqasDesigning an algorithm - example two

Algorithm design option one - flow diagram

Algorithm design option two - pseudocode

{set error flag to True to enable loop}
Set error = True {iterate until a valid password is entered}
while error == True {set all variables to default values } set error = False set lower case = 0 set upper case = 0 set number = 0 {input the password} Output "Type in a password of at least 5 characters including 1 l/c letters, 1 u/c, 1 number: " input password {check password length - error if not at least 5 characters} if len(password)< 5 then error = True end if {if the password is the right length then} {inspect each character in the password} {add 1 to the number of upper case for each upper case character} {add 1 to the number of lower case for each lower case character} {add 1 to the number of numbers for each number} if error = False then for position (0 to len(password)) {loop between 0 and length of password} if password[position] >="A" AND password[position] < ="Z" then upper case = upper case + 1 else if password[position] >="a" AND password[position]< ="z" then lower case = lower case 1 else if password[position] >="0" AND password[position]< ="9" then number = number + 1 next position end if {if character requirements are not met, an error has occured} if upper case < 1 OR lower case < 1 OR number < 1 then error = True output "Password not accepted"
Else
{output acceptance}
output "Password accepted: "< password end if
END

Output table

With the inputs stated below the outputs would be:

Example:

Type in a password of at least 5 characters including 1 l/c letters, 1 u/c, 1 number: Pass1234

Password accepted: Pass1234

Testing table

Tests will be required to test that the final program runs correctly.

The problem has now been fully decomposed and an algorithm has been designed.