i know it isn't a good question to ask but i really need help to solve this problem or this kind of problem which involves probability. how can i solve this? pls give any good tutorial link where i can learn probability better... TIA.
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Codeforces (c) Copyright 2010-2026 Mike Mirzayanov
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This problem doesnot involves any Probability.
Hint : The answer is always 1 or 0.
Let me know if you need another Hint.