How to Solve Count Complete Substrings Problem
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Count Complete Substrings
You are given a string word and an integer k. A substring s of word is complete if: Each character in s occurs exactly k times. The difference between two adjacent characters is at most 2. That is, fo...
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Understanding the Count Complete Substrings Problem
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Problem Statement
You are given a string word and an integer k. A substring s of word is complete if: Each character in s occurs exactly k times. The difference between two adjacent characters is at most 2. That is, for any two adjacent characters c1 and c2 in s, the absolute difference in their positions in the alphabet is at most 2. Return the number of complete substrings of word. A substring is a non-empty contiguous sequence of characters in a string.
Count Complete Substrings
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Examples
word = "igigee", k = 23The complete substrings where each character appears exactly twice and the difference between adjacent characters is at most 2 are: igigee, igigee, igigee.
word = "aaabbbccc", k = 36The complete substrings where each character appears exactly three times and the difference between adjacent characters is at most 2 are: aaabbbccc, aaabbbccc, aaabbbccc, aaabbbccc, aaabbbccc, aaabbbccc.
Constraints
1 <= word.length <= 105word consists only of lowercase English letters.1 <= k <= word.lengthHow Interview Coder Helps with Leetcode Problems
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