Question

Following is an algorithm to classify numbers as “Single Digit”, “Double Digit” or “Big”.

Classify_Numbers_Algo
INPUT Number
IF Number < 9
             "Single Digit"
Else If Number < 99
             "Double Digit"
Else
             "Big"

Verify for (5, 9, 47, 99, 100, 200) and correct the algorithm if required.

Answer 1

The correct algorithm is:

INPUT Number
IF Number < 10
"Single Digit"
  Else If Number < 100
    "Double Digit"
      Else
         "Big"