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30 lines
1.1 KiB
HTML
30 lines
1.1 KiB
HTML
<p>Given a string <code>s</code> and an integer <code>k</code>, return <em>the length of the longest substring of</em> <code>s</code> <em>such that the frequency of each character in this substring is greater than or equal to</em> <code>k</code>.</p>
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<p data-pm-slice="1 1 []">if no such substring exists, return 0.</p>
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<p> </p>
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<p><strong class="example">Example 1:</strong></p>
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<pre>
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<strong>Input:</strong> s = "aaabb", k = 3
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<strong>Output:</strong> 3
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<strong>Explanation:</strong> The longest substring is "aaa", as 'a' is repeated 3 times.
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</pre>
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<p><strong class="example">Example 2:</strong></p>
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<pre>
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<strong>Input:</strong> s = "ababbc", k = 2
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<strong>Output:</strong> 5
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<strong>Explanation:</strong> The longest substring is "ababb", as 'a' is repeated 2 times and 'b' is repeated 3 times.
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</pre>
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<p> </p>
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<p><strong>Constraints:</strong></p>
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<ul>
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<li><code>1 <= s.length <= 10<sup>4</sup></code></li>
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<li><code>s</code> consists of only lowercase English letters.</li>
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<li><code>1 <= k <= 10<sup>5</sup></code></li>
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</ul>
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