[Solved] Find the bug in this refund calculation snippet:if cancellation_time < allowed_time: refund = amount * 0.8elif cancellation_time == allowed_time: refund = amount * 0.5else: refund = 0 | LLD

LLD - Design — Hotel Booking System

Find the bug in this refund calculation snippet:

if cancellation_time < allowed_time:
    refund = amount * 0.8
elif cancellation_time == allowed_time:
    refund = amount * 0.5
else:
    refund = 0

AThe condition should use <= for first if to include equal time

BRefund should be 100% if cancellation_time equals allowed_time

CRefund should be zero for all cases

DNo bug, code is correct

Step-by-Step Solution

Solution:

Step 1: Review conditions for refund
Usually, cancellation at allowed_time should get same refund as before or after.
Step 2: Identify condition overlap
Separate if and elif cause different refunds for equal time, which may be inconsistent.
Final Answer:
The condition should use <= for first if to include equal time -> Option A
Quick Check:
Condition fix = Use <= to cover equal time [OK]

Quick Trick: Use <= to include boundary cases [OK]

Common Mistakes:

MISTAKES

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Find the bug in this refund calculation snippet: