[Solved] Given a system where agents are assigned based on proximity, what will be the output if all agents are busy?AssignAgent(order): nearest = FindNearestFreeAgent(order.location) if nearest is None:... | LLD

LLD - Design — Food Delivery System

Given a system where agents are assigned based on proximity, what will be the output if all agents are busy?

AssignAgent(order):
   nearest = FindNearestFreeAgent(order.location)
   if nearest is None:
     return "No agents available"
   return nearest.id

A"Agent assigned"

BNearest agent's ID

CSystem crash due to null pointer

D"No agents available"

Step-by-Step Solution

Solution:

Step 1: Analyze the function behavior when no free agent exists
If FindNearestFreeAgent returns None, the function returns "No agents available".
Step 2: Confirm output for all busy agents
Since all agents are busy, nearest is None, so output is the string message.
Final Answer:
"No agents available" -> Option D
Quick Check:
Output when busy = "No agents available" [OK]

Quick Trick: Check for None before accessing agent ID [OK]

Common Mistakes:

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