Programming Fundamentals
T

Applying Selection, Iteration and Data Structures

Push a bit harder. Apply what you know to less familiar problems.

Computer Science · Medium

5

questions · ~4 min · 3 hints each (−5 pts)

Confidence tracking, 3-tier hints and instant feedback.

What you'll learn

Each question helps you build key knowledge and skills.

  • 1Selection can be extended with ELSE IF or nested IF statements to handle more than two possible outcomes, allowing a program to respond to several different conditions.
  • 2Iteration includes count controlled loops, such as FOR loops that run a known number of times, and condition controlled loops, such as WHILE loops that run until a condition becomes false.
  • 3Arithmetic operators include addition, subtraction, multiplication and division, while comparison operators such as greater than and equal to are used inside conditions for selection and iteration.
  • 4Arrays store multiple values that can be accessed using an index number, and looping through an array with a FOR loop is a common way to process every element.
  • 5Functions can accept parameters as inputs and return a value as output, which makes them useful for performing a calculation and reusing it in different parts of a program.

Question mix

A mix of question types to build your skills.

  • Multiple choice×3
  • Short answer×2

Different question types help you think in different ways.

How it works

A simple 3-step process

  1. 1

    Rate your confidence

    Tell us how sure you feel before answering. It helps us understand your starting point.

  2. 2

    Use hints if stuck

    Get up to 3 helpful hints per question. Each hint costs 5 Treasure Points.

  3. 3

    See what went wrong

    Get instant feedback with clear explanations, so you can learn and improve.

Ready when you are

This takes about 4 minutes.