Находил эту задачу на нескольких тестирующих серверах с задачами, подскажите как решать :)
Спасибо.
Спасибо.
upd: АС. Красивое решение. Спасибо всем)
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Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round)
07:32:21
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Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round)
07:32:21
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