Dijkstra and Shortest Path Algorithms for Exam Prep

Dijkstra and Shortest Path Algorithms - Implementations in C++ - Case Studies

Q. In Dijkstra's algorithm, what data structure is commonly used to keep track of the minimum distance to each vertex?

Solution

A priority queue is used in Dijkstra's algorithm to efficiently retrieve the vertex with the smallest distance.

Correct Answer: C — Priority Queue

Q. What is the initial distance value assigned to the source vertex in Dijkstra's algorithm?

Solution

The initial distance value assigned to the source vertex is 0, as it is the starting point of the path.

Correct Answer: B — 0

Q. Which of the following algorithms is similar to Dijkstra's algorithm?

Solution

The A* Search Algorithm is similar to Dijkstra's algorithm as it also finds the shortest path but uses heuristics to improve efficiency.

Correct Answer: A — A* Search Algorithm

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