Foundations of Data Structures and Algorithms MCQs

Topic-wise practice questions for Data Structures & Algorithms. Test your knowledge, check solutions on demand, and pace your preparation.

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Q81medium
An application needs to store 1,000,000 records. It performs millions of middle-insertions but zero random-access lookups. Which is best?
Q82easy
What is the 1D index of M[2][3] in a Row-Major array of size [5]

[10]?
Q83hard
What is the **Worst-Case** time complexity of Quick Sort?
Q84easy
What is the Recurrence Relation for Merge Sort?
Q85easy
Which data structure is most efficient for a "Undo" feature in a text editor?
Q86hard
An algorithm has a complexity of O(n²). If it takes 0.1 seconds to process 1,000 items, how long will it take to process 10,000 items?
Q87easy
In graph theory, an edge that connects a vertex to itself is known as a:
Q88hard
If an algorithm is said to have Amortized O(1) complexity for an operation, what does this mean?
Q89hard
Which statement about Non-Linear traversal is true?
Q90easy
What is the Top of the stack after: Push(A), Push(B), Pop(),

Push(C)?