Commit c045806

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Add solution for "1704. Determine if String Halves Are Alike"

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	`1`	`+<?php`
	`2`	`+class Solution`
	`3`	`+{`
	`4`	`+ /**`
	`5`	`+ * @param String $s`
	`6`	`+ * @return Boolean`
	`7`	`+ */`
	`8`	`+ public function halvesAreAlike($s)`
	`9`	`+ {`
	`10`	`+ $vowels = ['a', 'e', 'i', 'o', 'u', 'A', 'E', 'I', 'O', 'U'];`
	`11`	`+ $len = strlen($s);`
	`12`	`+ $firstHalfVowelCount = 0;`
	`13`	`+ $secondHalfVowelCount = 0;`
	`14`	`+`
	`15`	`+ for ($i = 0; $i < $len / 2; $i++) {`
	`16`	`+ if (in_array($s[$i], $vowels)) {`
	`17`	`+ $firstHalfVowelCount++;`
	`18`	`+ }`
	`19`	`+ if (in_array($s[$i + $len / 2], $vowels)) {`
	`20`	`+ $secondHalfVowelCount++;`
	`21`	`+ }`
	`22`	`+ }`
	`23`	`+`
	`24`	`+ return $firstHalfVowelCount === $secondHalfVowelCount;`
	`25`	`+ }`
	`26`	`+}`
	`27`	`+`
	`28`	`+$solution = new Solution();`
	`29`	`+`
	`30`	`+$s = "book";`
	`31`	`+`
	`32`	`+var_dump($solution->halvesAreAlike($s));`

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