LLD - Design — Elevator System
In a building with 10 floors and 3 elevators, how can the system handle simultaneous requests from floors 2, 5, and 9 efficiently?
In a building with 10 floors and 3 elevators, how can the system handle simultaneous requests from floors 2, 5, and 9 efficiently?
hard📝 Trade-off Q9 of Q15
Step-by-Step Solution
Solution:
Step 1: Understand efficient request handling
Assigning requests to nearest elevators moving correctly reduces wait and travel time.Step 2: Evaluate other options
Assigning all to one elevator or ignoring requests causes delays; random assignment is inefficient.Final Answer:
Assign each request to the nearest elevator moving in the correct direction -> Option CQuick Check:
Efficient handling = Nearest elevator assignment [OK]
Quick Trick: Match requests with nearest suitable elevator [OK]
Common Mistakes:
MISTAKES- Overloading one elevator
- Ignoring requests
- Random assignments
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