Paper and Pencil Approach

Using top-down approach, for the top part (we assume test235 is implemented) what all do we need to write down if we solve using paper and pencil. Let's Try it...

These are the variables used by our program.

• which (this value is supplied by user. when to stop)
• counter (how many we have seen so far)
• current (the number we are currently testing).

What is the logic used by our program? In what order and what steps do we use?