A detective is searching for clues in a mansion and uses depth-first search(DFS) to investigate every room, he always moves to the next available door in alphabetical order.

The mansion layout is: the Entrance has doors to the Ballroom and the Library. The Ballroom leads to the kitchen. The Kitchen leads to the Study and the Dining Room. The Library leads to the Observatory. The Dining Room, Study and Observatory don't lead to any relevant rooms.

Which sequence correctly describes the detective's DFS walkthrough?

a) Entrance → Ballroom → Kitchen → Dining Room → Study → Library → Observatory

b) Entrance → Ballroom → Library → Kitchen → Dining Room → Study → Observatory

c) Entrance → Ballroom → Kitchen → Dining Room → Library → Observatory → Study

d) Entrance → Library → Observatory → Ballroom → Kitchen → Dining Room → Study

e) None of the above.

Comments

  1. Joao MeidanisMarch 14, 2026 at 8:35 AM

    Nice question, but we already have many similar questions in the bog.

    ReplyDelete

Post a Comment

Popular posts from this blog

Image
  A group of male friends wishes to elect a “group leader,” defined as the individual whom all others must follow for the day. Each friend casts exactly two vote for another member of the group. The election proceeds as follows: The individual receiving the highest number of votes is declared the winner. In the event of a tie, compare their clustering coefficients. The tied candidate with the smaller clustering coefficient is declared the winner, on the reasoning that if their supporters are not connected to one another, their “loyalty” is more securely independent. Although votes are inherently directed, the group mistakenly treated votes as a single undirected connection. Given the voting graph below, determine the winner of this entirely serious democratic exercise. The winner is: A. Don B. Bob C. Matt D. Neal E. None of the above
Read more
 During the 2026 conflict in the Middle East, the Islamic Republic of Iran has closed the Strait of Hormuz. Applying network science to global supply chains during this geopolitical conflict is an excellent way to understand it`s real-world impact. Using Flow Network to understand why and how the flow of oil would be affected. Here is how the concept map to reality: Source Node(S): The oil fields where the resource originates (e.e., fields in Iran, Saudi Arabia, Venezuela, UAE, etc.) Sink Node(T): The global market or consumig nations (e.g., refineries in Asia, Eurpoe and the Americas) Intermidiete Nodes and Links: Export terminals, pumping stations and maritime transit chokepoints; shipping lanes and overland pipelines Capacities: Every edge has a maximum volume it can transport per day in millions of barrels per day. Based on the network flow model of the Global oil supply chain, with multiple source and sink nodes, which of the following statements is true? a) Assuming supp...
Read more