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medium Solve on LeetCodeLast edited: August 2, 2025

Problem
Examples
Solution
Method 1 - Count the continuous chars
Video explanation
Code
Complexity

video explanation

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array backtracking binary-indexed-tree binary-search bit-manipulation breadth-first-search combinatorics compression counting counting-sort database depth-first-search divide-and-conquer dynamic-programming enumeration graph greedy hash-table heap-priority-queue leetcode math matrix monotonic-stack prefix-sum queue segment-tree simulation sliding-window sorting stack string suffix-array tree two-pointers video

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