Given an array a (0 <= a[i] <= 2^22) of length N(<=1e5). For every i, you need to find the number of j such that a[i]&a[j] = a[j].
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Given an array a (0 <= a[i] <= 2^22) of length N(<=1e5). For every i, you need to find the number of j such that a[i]&a[j] = a[j].
Название |
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f[a[i]] is the answer
Is this SOS DP?
Yes