Rotating an array by 'k' positions to the right means:
Sorting the array in descending order.
Reversing the entire array.
Shifting each element 'k' positions to the right.
Shifting each element 'k' positions to the left.
You are designing a system to store a large sparse matrix where memory usage is critical. Which approach is most suitable?
Store the matrix in a text file and read it when needed.
Implement the sparse matrix using a hash table.
Use a standard 2D array.
Use a dynamic array and resize it as needed.
What is the main challenge in implementing a circular array?
Handling the resizing of the array
Managing the wrap-around behavior correctly
Efficiently searching for elements in the array
Determining the starting index of the array
What is a key characteristic of a circular array?
It has a fixed size that cannot be changed.
It allows direct access to any element in O(1) time.
It conceptually wraps around, so the last element is followed by the first.
It automatically sorts elements in ascending order.
You are given a sorted array and a target value to insert. Which algorithm offers the best time complexity for inserting the target value while maintaining the sorted order?
Linear Search
Quick Sort
Bubble Sort
Binary Search
You are searching for a target value in a 2D matrix where each row and column is sorted in ascending order. Which search algorithm is the most efficient?
Breadth First Search
Staircase Search
Binary Search on each row
You need to rotate an array by a very large 'k'. What optimization can be applied to improve efficiency?
Calculate the effective rotation (k % n) where n is the array length.
Sort the array before rotation.
No optimization is possible for large 'k'.
Use a temporary array to store elements.
In merge sort, what is the maximum number of comparisons required to merge two sorted subarrays of size 'm' and 'n' into a single sorted array of size 'm+n'?
m * n
m + n - 1
m * n - 1
m + n
Which searching technique is most suitable for searching for a target element in a sorted array that is rotated at an unknown pivot point?
Interpolation Search
Depth First Search
What is the time complexity of rotating an array of size 'n' by 'k' positions in place?
O(n)
O(k)
O(1)
O(n*k)