Предмет: Математика, автор: giniatulinar

N9 8 Турнир по шахматам проходит по следующей системе: каждый из 13 учеников школы «Белая ладья» должен сыграть один раз с каждым из 30 учеников школы «Черный слон», т.е. всего должно быть проведено 390 партий. В каждый момент времени проводится не более одной партии. После п партий болельщик Саша, который смотрел все партии и знает всех участников, воскликнул: «Я точно могу назвать одного из участников следующей партии!» При каком наименьшем п такое могло случиться? Число? СРОЧНОО

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Автор ответа: planetavenom

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Пошаговое объяснение: хз

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