How to Solve Count Beautiful Numbers Problem
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Count Beautiful Numbers
You are given two positive integers, l and r. A positive integer is called beautiful if the product of its digits is divisible by the sum of its digits. Return the count of beautiful numbers between l...
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Understanding the Count Beautiful Numbers Problem
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Problem Statement
You are given two positive integers, l and r. A positive integer is called beautiful if the product of its digits is divisible by the sum of its digits. Return the count of beautiful numbers between l and r, inclusive.
Count Beautiful Numbers
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Examples
l = 10, r = 20
2
The beautiful numbers in the range are 10 and 20.
l = 1, r = 15
10
The beautiful numbers in the range are 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10.
Constraints
1 <= l <= r < 109
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