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Two_Pointers/2958.Length-of-Longest-Subarray-With-at-Most-K-Frequency/Readme.md

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2958.Length-of-Longest-Subarray-With-at-Most-K-Frequency

本题就是维护一个滑窗,使得滑窗内的任何元素的频次不能超过K。如果满足条件,那么就移动右边界;如果不满足,那就移动左边界。