[Solved] Identify the error in the following fine calculation code snippet:violation_fine_rates = {'speeding': 100, 'parking':... | LLD

LLD - Design — Library Management System

Identify the error in the following fine calculation code snippet:

violation_fine_rates = {'speeding': 100, 'parking': 50}
violations = ['speeding', 'parking', 'signal_jump']
total_fine = sum(violation_fine_rates[v] for v in violations)
print(total_fine)

ASyntaxError due to missing colon

BKeyError occurs because 'signal_jump' is not in the rates dictionary

CTypeError because sum cannot add strings

DNo error, code runs fine

Step-by-Step Solution

Solution:

Step 1: Check dictionary keys against violations
'signal_jump' is not a key in violation_fine_rates, so accessing it causes a KeyError.
Step 2: Understand error type
Attempting to access a missing key in a dictionary raises KeyError in Python.
Final Answer:
KeyError occurs because 'signal_jump' is not in the rates dictionary -> Option B
Quick Check:
Missing key access = KeyError [OK]

Quick Trick: Check if all violation keys exist in the rates dictionary [OK]

Common Mistakes:

MISTAKES

Assuming missing keys return zero
Confusing KeyError with SyntaxError
Ignoring runtime errors

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Identify the error in the following fine calculation code snippet:

Step 1: Check dictionary keys against violations

Step 2: Understand error type

Final Answer:

Quick Check:

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