2.1 Algorithms with Selection and Repetition

1. Exam Points

• Sequencing, selection and repetition
  • Selection in natural language.

2. Knowledge Points

(1) Algorithms with Selection and Repetition

• The building blocks of algorithms (step-by-step process to solve a problem) include sequencing, selection, and repetition. (3 classical constructs)
• Selection occurs when a choice of how the execution of an algorithm will proceed is based on a true or false decision.
  • The condition should be a Boolean expression (result : true or false).
  • Example:
    
• Repetition is when a process repeats itself until a desired outcome is reached.
  • Example:
    

3. Exercises

• Practice
• Solution