AI Features

Solution: Number of Substrings Containing All Three Characters

Let's solve the Number of Substrings Containing All Three Characters problem using the Sliding Window pattern.

Statement

Given a string s that consists only of the characters 'a', 'b', and 'c', return the number of substrings that contain at least one occurrence of each of the three characters.

Constraints:

  • 3≤3 \leq s.length ≤ ...