mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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174 lines
15 KiB
JSON
174 lines
15 KiB
JSON
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"title": "Determine if String Halves Are Alike",
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"content": "<p>You are given a string <code>s</code> of even length. Split this string into two halves of equal lengths, and let <code>a</code> be the first half and <code>b</code> be the second half.</p>\n\n<p>Two strings are <strong>alike</strong> if they have the same number of vowels (<code>'a'</code>, <code>'e'</code>, <code>'i'</code>, <code>'o'</code>, <code>'u'</code>, <code>'A'</code>, <code>'E'</code>, <code>'I'</code>, <code>'O'</code>, <code>'U'</code>). Notice that <code>s</code> contains uppercase and lowercase letters.</p>\n\n<p>Return <code>true</code><em> if </em><code>a</code><em> and </em><code>b</code><em> are <strong>alike</strong></em>. Otherwise, return <code>false</code>.</p>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "book"\n<strong>Output:</strong> true\n<strong>Explanation:</strong> a = "b<u>o</u>" and b = "<u>o</u>k". a has 1 vowel and b has 1 vowel. Therefore, they are alike.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "textbook"\n<strong>Output:</strong> false\n<strong>Explanation:</strong> a = "t<u>e</u>xt" and b = "b<u>oo</u>k". a has 1 vowel whereas b has 2. Therefore, they are not alike.\nNotice that the vowel o is counted twice.\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>2 <= s.length <= 1000</code></li>\n\t<li><code>s.length</code> is even.</li>\n\t<li><code>s</code> consists of <strong>uppercase and lowercase</strong> letters.</li>\n</ul>\n",
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"Create a function that checks if a character is a vowel, either uppercase or lowercase."
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