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Вопрос по информатике:
Найдите такое минимальное целое положительное число N, что если прибавить его к 123( в десятичной ) и перевести результат суммирования в двоичную систему счисления, то получившаяся запись числа будет содержать ровно одну единицу и некоторое количество нулей. В ответе укажите число N, записанное в десятичной системе счисления.-
Автор:
lauryn
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Ответ:
5
Объяснение:
Числа для ответа подходят только те, которые являются степенью двойки: 2 4 8 16 32 64 128 и так далее, так как при их переводе в двоичную систему счисления единица будет только 1:
1, 10(2), 100(4), 1000(8), 10000(16) и так далее.
отсюда следует что нужно найти такое N, чтобы число 123 стало ближайшей степенью двойки. Ближайшая степень двойки к 123 - это 128, разница 5. Вот и ответ, 5
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