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Sorting Algorithms

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Sorting Algorithms exam questions14 questions with mark schemes and example answers
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What is the primary purpose of using sorting algorithms in computer science?
To organize data into a specified order for more efficient searching and processing
Which sorting algorithm is considered most efficient when dealing with large datasets?
Merge Sort
In Bubble Sort, what action is taken when the current element is greater than the next element?
The elements are swapped
What is a key characteristic of Merge Sort that differentiates it from other sorting algorithms?
It breaks down the array into smaller arrays and merges them in order
How does the complexity of Bubble Sort change with the size of the array?
It increases quadratically, making it less efficient for larger arrays
What advantage does Merge Sort have over Bubble Sort?
Better performance on larger arrays due to its divide-and-conquer approach
Why is Bubble Sort considered inefficient for sorting large datasets?
Because its time complexity is quadratic, requiring many passes through the data
How does Merge Sort ensure elements are sorted correctly when reassembling the array?
By merging smaller arrays in order while ensuring each is sorted
What is a scenario where Bubble Sort might still be a viable option despite its inefficiencies?
When sorting an array that is nearly sorted, where minimal swaps are needed
Which sorting algorithm employs a divide-and-conquer strategy for sorting elements?
Merge Sort