LLD - Design — Tic-Tac-Toe Game
Which of the following code snippets correctly updates the current player index to the next player in a circular list of 4 players?
Which of the following code snippets correctly updates the current player index to the next player in a circular list of 4 players?
easy🧠 Conceptual Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Understand circular indexing
To cycle through players, we add 1 and wrap around using modulo.Step 2: Check each option
current_index = (current_index + 1) % 4 correctly uses modulo to wrap index from 3 back to 0.Final Answer:
current_index = (current_index + 1) % 4 -> Option AQuick Check:
Modulo ensures circular turn cycling [OK]
Quick Trick: Use modulo (%) to cycle player index [OK]
Common Mistakes:
MISTAKES- Forgetting modulo causes index overflow
- Using subtraction incorrectly
- Multiplying index instead of incrementing
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