2.1.4 Thinking Logically Flashcards

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1
Q

Thinking Logically

A

Thinking Logically :
- Identify points where decisions must be taken - e.g. boolean conditions in sequence, selection or iteration
(e.g. Does … need to be shown/output)

  • Program uses structured programming techniques including:
    Sequence: code executed line by line
    Selection: If statements that branch if a condition is met
    Iteration: Loops that repeat code while condition is met or set number of times
  • Determine logical conditions that affect the outcome of a decision
    (e.g. most effective/convenient)
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2
Q

Thinking Logically - Determine how decisions affect the flow through a program

A

Determine how decisions affect the flow through a program :
- Allows you to tackle programs effectively and determine which parts can be tackled simultaneously

Allows to develop Good algorithm which has :
- Clear precisely stated steps that produce correct output for inputs.
- Doesn’t allow invalid inputs.
- Must terminate eventually.
- Execute efficiently in as few steps as possible.

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