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Count Beautiful Substrings II

hard Solve on LeetCodeLast edited: August 2, 2025

Problem
Examples
Example 1
Example 2
Example 3
Constraints
Solution
Method 1 – Prefix Sum and Hash Map (Optimized for Large k) 1
Intuition
Approach
Code
Complexity

Related Tags

hash-table leetcode math number-theory prefix-sum string

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