Consider the following algorithm in Fig.2, expressed in pseudocode, as a function S: (a) State the name of the algorithm implemented in Fig.2. (b) Describe the purpose of this algo... Consider the following algorithm in Fig.2, expressed in pseudocode, as a function S: (a) State the name of the algorithm implemented in Fig.2. (b) Describe the purpose of this algorithm.
Understand the Problem
The question is asking about an algorithm provided in pseudocode, specifically to identify the name of the algorithm and describe its purpose.
Answer
Binary Search algorithm. It finds the position of a target value in a sorted array by dividing the search interval in half.
The algorithm implemented in Fig.2 is the Binary Search algorithm. The purpose of this algorithm is to efficiently find the position of a target value within a sorted array. It repeatedly divides the search interval in half, using the middle element as a comparison point to determine whether to continue the search in the left or right half.
Answer for screen readers
The algorithm implemented in Fig.2 is the Binary Search algorithm. The purpose of this algorithm is to efficiently find the position of a target value within a sorted array. It repeatedly divides the search interval in half, using the middle element as a comparison point to determine whether to continue the search in the left or right half.
More Information
Binary Search is efficient, with a time complexity of O(log n), making it ideal for large datasets. It requires the array to be pre-sorted.
Tips
Common mistakes include not ensuring the array is sorted before applying binary search, and incorrectly calculating the middle index.
Sources
- OCR H446 A-Level Computer Science - WordPress.com - mrjhubbardcs.files.wordpress.com
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