AP Computer Science Principles
Advanced Placement Computer Science Principles exploring computational thinking and programming.
Algorithms and Problem Solving
Step-by-Step Solutions
Algorithms are the backbone of computer science. They are a list of clear steps that solve a problem or perform a task.
Designing an Algorithm
- Understand the problem: What are you trying to solve?
- Plan the steps: Write out each action needed.
- Test and improve: Try it out and see if it works.
Pseudocode and Flowcharts
Before writing code, programmers often use pseudocode (plain language steps) or flowcharts (diagrams) to plan out their algorithms.
Everyday Algorithms
Making a peanut butter and jelly sandwich can be an algorithm! List each step to make sure nothing is left out.
Importance in Computer Science
Good algorithms make programs run faster and more efficiently. They are used in everything from sorting your emails to finding the fastest route on a map.
Examples
Sorting a list of names alphabetically.
Following the steps to solve a math equation.
In a Nutshell
Algorithms are step-by-step instructions to solve problems, used everywhere in computing.