Amazing Substrings

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## Problem Statement The following is an integer array `X` = `x1,x2,…,xm`. `Y` will be a subsequence of `X` if if it is possible to remove some elements from `X` to get `Y`. The integer array `Y` `y1,y2,…,yk` is called Amazing if it is not empty and for every `j (1≤j≤k)` `yi` is perfectly divisible by `j`. Find the number of Amazing subsequences in `X` modulo `(10^9)+7`. Two subs

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solution.cppC++17

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