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medium Solve on LeetCodeLast edited: August 2, 2025

Problem
Examples
Solution
Video explanation
Method 1 - Count consecutive characters
Code
Complexity
Method 2 - Just compare 2 adjacent characters
Code
Complexity

video explanation

Related Tags

array binary-indexed-tree binary-search binary-string bit-manipulation combinatorics database depth-first-search dynamic-programming enumeration graph greedy hash-table heap-priority-queue interactive leetcode math matrix segment-tree sliding-window sorting string video

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