Algorithm Efficiency

Which of the following is NOT one of the four key algorithms mentioned for GCSE?

• Binary Search

• Linear Search

• Merge Sort

• Quick Sort

What is the main focus of this video?

• Algorithm Implementation

• Algorithm Debugging

• Algorithm Design

• Algorithm Efficiency

In the comparison of two algorithms that sum integers, which one is more efficient?

• Both are equally efficient

• Neither is efficient

• The one with a single line of code

• The one with a for loop

What does the term 'time complexity' refer to?

• The amount of memory an algorithm needs

• The amount of time an algorithm needs to solve a problem

• The number of lines of code in an algorithm

• The difficulty of understanding an algorithm

Which of the following best describes 'space complexity'?

• The complexity of the algorithm's logic

• The amount of memory an algorithm requires

• The number of iterations in an algorithm

• The amount of time an algorithm needs

What is Big O notation used for?

• Debugging algorithms

• Classifying algorithms based on their computational time growth

• Measuring the speed of a computer

• Designing new algorithms

Which term describes an algorithm that always executes in the same time regardless of input size?

• Linear Time Complexity

• Quadratic Time Complexity

• Constant Time Complexity

• Exponential Time Complexity

What are 'tractable problems'?

• Problems that cannot be solved by any algorithm

• Problems that need more memory than available

• Problems solvable in polynomial time or better

• Problems that require infinite time to solve

What does it mean if an algorithm has exponential time complexity?

• It requires a fixed amount of memory

• Its execution time grows exponentially with input size

• It runs in linear time

• It runs in constant time

What is the purpose of the book 'Essential Algorithms for A Level Computer Science'?

• To provide a high-level overview of algorithms

• To offer detailed explanations and examples of algorithms for both GCSE and A Level

• To teach basic programming concepts

• To focus on debugging techniques