In which scenario is a sparse array particularly useful?
Representing a matrix with mostly zero values
Implementing a stack data structure
Storing a large sorted array
Storing a small array with frequent updates
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?
Linear Search
Breadth First Search
Staircase Search
Binary Search on each row
What is the time complexity of rotating an array of size 'n' by 'k' positions in place?
O(1)
O(k)
O(n)
O(n*k)
What is the main challenge in implementing a circular array?
Handling the resizing of the array
Managing the wrap-around behavior correctly
Determining the starting index of the array
Efficiently searching for elements in the array
A dynamic array is used to store a growing dataset. When the array reaches its capacity and needs to resize, what is the common strategy to ensure amortized constant time complexity for appending elements?
Double the size of the array when full.
Increase the array size by a fixed constant when full.
Use a linked list instead of resizing the array.
Create a new array with exactly the required size.
Which sorting algorithm has the least space complexity among Merge Sort, Quick Sort, and Heap Sort?
Heap Sort
Quick Sort
Merge Sort
What is the time complexity of searching for a target value in a sorted array using binary search?
O(log n)
O(n log n)
What is the time complexity of deleting a given value from an unsorted array in the worst case?
Rotating an array by 'k' positions to the right means:
Shifting each element 'k' positions to the right.
Shifting each element 'k' positions to the left.
Reversing the entire array.
Sorting the array in descending order.
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 automatically sorts elements in ascending order.
It conceptually wraps around, so the last element is followed by the first.