Easiest and unique approach with better time complexity than sliding window - Longest Substring with At Least K Repeating Characters - LeetCode

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CJavaC++Python3PythonJavaScriptGoKotlinRubySwiftRustC#ScalaPHPTypeScriptRecursionDivide and ConquerSliding WindowStringTwo PointersHash TableOrdered MapArrayDynamic ProgrammingBinary TreeBinary SearchBacktrackingTreeDepth-First SearchMemoizationPrefix SumOrdered Set