Computer Science

an error checking method that steps through each line of code in a program and records the state of the variables and conditions

in sorting algorithms, efficiency refers to how effectively an algorithm uses resources (time and space) while sorting a list of data

Coding sorting algorithms

Linear search

Binary search

Comparing searching algorithms

Bubble sort

Merge sort

Insertion sort

Practice searching and sorting algorithms

In this unit pupils will have opportunities to analyse, interpret, modify, and implement a range of searching and sorting algorithms. They will have the opportunity to compare the features and efficiency of these algorithms and make suggestions about the most suitable algorithm for a given task.

Searching and sorting algorithms

to optimise the efficiency of an algorithm

to record the state of variables and conditions during code execution

What is the purpose of a trace table in programming?

it is the most efficient sorting algorithm for large data sets

it compares adjacent elements and swaps them if needed

it inserts elements into their correct position one by one

Which of the following statements is true about bubble sort?

by using a variable to flag when a swap is made during a pass

by increasing the number of comparisons per pass

How can the performance of bubble sort be improved?

how effectively it uses resources such as time and space

how many lines of code the algorithm contains

What does the efficiency of a sorting algorithm refer to?

swap elements if they are in the wrong order

set a flag if a swap is made during the pass

Arrange the steps of the bubble sort algorithm with a flag in the correct order:

Which sorting algorithm is better for small or partially sorted datasets?

What is the main purpose of a sorting algorithm?

it divides the list into halves and sorts each half

it finds the smallest element and places it at the beginning

it repeatedly swaps adjacent elements if they are in the wrong order

Which of the following best describes the bubble sort algorithm?

Arrange the steps of the bubble sort algorithm in the correct order:

it always divides the list into two parts

it builds the sorted list one element at a time

it requires a pre-sorted list to function

What is a key characteristic of the insertion sort algorithm?

compare the current element with elements in the sorted portion of the list

shift larger elements in the sorted portion one position to the right

insert the current element into its correct position in the sorted portion

repeat for the next element in the unsorted portion until the list is sorted

Arrange the steps of the insertion sort algorithm in the correct order:

repeatedly swaps adjacent elements to sort a list

builds the sorted list one element at a time

Match the following terms with their definitions:

Starter Quiz

What is the main purpose of a sorting algorithm?