Graph Algorithms MCQs

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

Zero-leak answer engine • Rate-limited explanations
Practice in Timed Mode
Q51easy
What is the main characteristic of Backtracking?
Q52medium
Which structure is most efficient for a "Continuous Stream" of numbers where you always need to find the Median in O(1) time?
Q53medium
You are implementing **Kruskal’s Algorithm** to find a Minimum Spanning Tree. Which data structure is essential to efficiently detect if adding an edge will form a cycle?
Q54medium
You need to keep track of whether 1,000 specific IDs have been "visited." Instead of an Array of Booleans, you use a Bitset (where 1 bit = 1 ID). This is an optimization of:
Q55hard
What happens to the **Time Complexity** of a recursive algorithm when we add **Memoization**?
Q56medium
If the text is "AAAAA" and the pattern is "AAA", how many comparisons would the Naive algorithm make?
Q57medium
In a graph with 5 vertices, what is the maximum possible value in its **Adjacency Matrix** (assuming unweighted)?
Q58easy
The Rabin-Karp algorithm relies on which mathematical concept to achieve efficiency?
Q59medium
Why might a **Binary Search** (O(\log N)) be slower than a **Linear Search** (O(N)) for an array of size N = 5?
Q60hard
You run Dijkstra's on a graph and it enters an infinite loop or gives a wrong answer. What is the most likely cause?