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40 lines
1.7 KiB
HTML
40 lines
1.7 KiB
HTML
<p>There is a malfunctioning keyboard where some letter keys do not work. All other keys on the keyboard work properly.</p>
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<p>Given a string <code>text</code> of words separated by a single space (no leading or trailing spaces) and a string <code>brokenLetters</code> of all <strong>distinct</strong> letter keys that are broken, return <em>the <strong>number of words</strong> in</em> <code>text</code> <em>you can fully type using this keyboard</em>.</p>
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<p> </p>
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<p><strong>Example 1:</strong></p>
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<pre>
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<strong>Input:</strong> text = "hello world", brokenLetters = "ad"
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<strong>Output:</strong> 1
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<strong>Explanation:</strong> We cannot type "world" because the 'd' key is broken.
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</pre>
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<p><strong>Example 2:</strong></p>
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<pre>
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<strong>Input:</strong> text = "leet code", brokenLetters = "lt"
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<strong>Output:</strong> 1
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<strong>Explanation:</strong> We cannot type "leet" because the 'l' and 't' keys are broken.
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</pre>
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<p><strong>Example 3:</strong></p>
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<pre>
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<strong>Input:</strong> text = "leet code", brokenLetters = "e"
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<strong>Output:</strong> 0
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<strong>Explanation:</strong> We cannot type either word because the 'e' key is broken.
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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 <= text.length <= 10<sup>4</sup></code></li>
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<li><code>0 <= brokenLetters.length <= 26</code></li>
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<li><code>text</code> consists of words separated by a single space without any leading or trailing spaces.</li>
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<li>Each word only consists of lowercase English letters.</li>
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<li><code>brokenLetters</code> consists of <strong>distinct</strong> lowercase English letters.</li>
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</ul>
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