📄️ A
The given code implements the binary search algorithm. It defines a binarySearch function that takes an array, target element, start index (si), and end index (ei) as parameters. The function recursively performs binary search on the array to find the target element. It compares the target element with the middle element of the current range and narrows down the search range accordingly until the target element is found or the search range is empty.
📄️ B
Quick Sort - Efficient divide-and-conquer algorithm with O(n log n) average and worst-case time complexity for sorting large datasets. Merge Sort - Effective divide-and-conquer algorithm with O(n log n) average and worst-case time complexity for sorting large datasets by recursively dividing, sorting, and merging sub-lists.
📄️ C
The code calculates the Fibonacci sequence up to a given number `n` and returns the sequence as a list. It uses a `for` loop to generate the Fibonacci numbers and appends them to a list. The function is then called with different values of `n` to print the corresponding Fibonacci sequences.