Count Substrings With K-Frequency Characters II
Explore how to identify and count substrings that contain at least one character appearing at least k times using the sliding window approach. This lesson helps you understand problem constraints and implement efficient solutions for common coding interview challenges.
We'll cover the following...
We'll cover the following...
Statement
Given a string s and an integer k, return the total number of substrings of s where at least one character appears at least k times.
Note: A substring is a contiguous sequence of characters within a string. For example, "edu" is a substring of "educative".
Constraints:
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