Leetcode Problem 1759. Count Number of Homogenous Substrings

1759. Count Number of Homogenous Substrings

Leetcode Solutions

Counting Homogenous Substrings

  1. Initialize ans to 0 to store the final count of homogenous substrings.
  2. Initialize currStreak to 0 to keep track of the current streak of identical characters.
  3. Define MOD as 10^9 + 7 for modulo operations.
  4. Iterate over the indices i of the string s: a. If i == 0 or s[i] == s[i - 1], increment currStreak. b. Otherwise, reset currStreak to 1. c. Add currStreak to ans modulo MOD.
  5. Return ans.
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