Deutsche Telekom Digital Labs Software Developer Interview Questions and Answers

Core Java , DS and Algo

Q1. LLD Spotify only structure
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Q2. Shortest path algorithm
Ans. 
Shortest path algorithm finds the shortest path between two nodes in a graph.
• Dijkstra's algorithm is a popular shortest path algorithm that uses a priority queue to find the shortest path in a weighted graph.

• A* algorithm is another popular shortest path algorithm that uses heuristics to guide the search towards the goal node.

• Bellman-Ford algorithm is used for finding the shortest path in a graph with negative edge weig
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Q1. Reason for the change
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Q2. What you bring to the table
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Start of The Loop in LinkedList.
Length of Loop in LinkedList

API Contract for Notification sending via SMS and Email