LLD - Design — Splitwise (Expense Sharing)
If a total amount is 200 and the exact split is {'A': 80, 'B': 120}, what is the amount user A pays?
If a total amount is 200 and the exact split is {'A': 80, 'B': 120}, what is the amount user A pays?
medium📝 Analysis Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Identify user A's exact amount
Exact split assigns user A the fixed amount 80.Step 2: Confirm total matches sum
Sum 80 + 120 = 200, so user A pays 80.Final Answer:
80 -> Option AQuick Check:
Exact split amount = 80 [OK]
Quick Trick: Exact split amount is fixed as given [OK]
Common Mistakes:
- Mixing amounts between users
- Calculating percentage instead of exact
- Assuming equal split
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