Which of the following is the correct way to represent net balances in code for the Simplify debts algorithm?

easy📝 Conceptual Q3 of 15

LLD - Design — Splitwise (Expense Sharing)

Which of the following is the correct way to represent net balances in code for the Simplify debts algorithm?

Anet_balances = "Alice": 50, "Bob": -30, "Charlie": -20

Bnet_balances = ["Alice": 50, "Bob": -30, "Charlie": -20]

Cnet_balances = ("Alice"=50, "Bob"=-30, "Charlie"=-20)

Dnet_balances = {"Alice": 50, "Bob": -30, "Charlie": -20}

Step-by-Step Solution

Solution:

Step 1: Identify correct data structure syntax
In Python, dictionaries use curly braces with key:value pairs.
Step 2: Validate each option
net_balances = {"Alice": 50, "Bob": -30, "Charlie": -20} uses correct dictionary syntax; others use invalid syntax.
Final Answer:
net_balances = {"Alice": 50, "Bob": -30, "Charlie": -20} -> Option D
Quick Check:
Dictionary syntax = Curly braces with key:value [OK]

Quick Trick: Use curly braces for dictionaries, square brackets for lists [OK]

Common Mistakes:

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