Decompostion and algorithm practice questions - OCRDesigning an algorithm – example two

Algorithm design option one - flow diagram

Algorithm design option two - pseudocode

#set error flag to True to enable loop
error = True #iterate until a valid password is entered
while error == True #set all variables to default values error = False lowerCase = 0 upperCase = 0 number = 0 #input the password password = input ("Type in a password of at least 5 characters including 1 l/c letters, 1 u/c, 1 number: ") #check password length - error if not at least 5 characters if len(password)< 5 then error = True endif #if the password is the right length then #inspect each character in the password #add 1 to the number of uppercase for each uppercase character #add 1 to the number of lowercase for each lowercase character #add 1 to the number of numbers for each number if error == False then for position in range(0,len(password)) if password[position] >="A" and password[position] < ="Z" then upperCase += 1 elseif password[position] >="a" and password[position]< ="z" then lowerCase += 1 elseif password[position] >="0" and password[position]< ="9" then number += 1 next position endif #if character requirements are not met, an error has occured if upperCase < 1 or lowerCase < 1 or number < 1 then error = True endif #output acceptance
print("Password accepted: ",password)

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.