????count increasing subsequence in O(n)

Revision en3, by i_am_not_special, 2024-08-08 10:38:39

So the question is count the number of increasing subsequence such that the gcd of subsequence will be equal to 1.

1 <= size of array <= 1e5 1 <= a[i] <= 1e6

can anyone help me solve this problem.

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en4 English i_am_not_special 2024-08-08 17:19:56 19
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en2 English i_am_not_special 2024-08-08 10:35:06 2
en1 English i_am_not_special 2024-08-08 10:30:34 239 Initial revision (published)