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can someone explain C ques TREEINFECETION

On Aris → Codeforces Round #780 (Div. 3), 5 years ago
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Thanks for the help.

On Aris → Codeforces Round #780 (Div. 3), 5 years ago
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can you please explain in more detail..i will be grateful

On Aris → Codeforces Round #780 (Div. 3), 5 years ago
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can anyone tell me the solution of C problem without dp