Miscellaneous On Data Structures - Study Mode

[#736] What is common between affine cipher and pigpen cipher.
Correct Answer

(C) both can be cracked using frequency analysis

[#737] Which data structure is used for efficiently finding the k-th smallest or largest element in an unsorted array?
Correct Answer

(A) Heap

[#738] What is the primary use of a Disjoint Set Union (DSU) in algorithms?
Correct Answer

(D) To manage dynamic sets and perform union-find operations

[#739] Which data structure is most suitable for implementing a system with a fixed-size, circular buffer?
Correct Answer

(D) Circular Queue

[#740] What data structure is used to manage and query a large dataset with minimal memory overhead and no duplicates?
Correct Answer

(A) Bloom Filter