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DetermineIfStringHalvesAreAlike1704.kt
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DetermineIfStringHalvesAreAlike1704.kt
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package easy
/**
* You are given a string s of even length. Split this string into two halves of equal lengths, and let a be the first half and b be the second half.
Two strings are alike if they have the same number of vowels ('a', 'e', 'i', 'o', 'u', 'A', 'E', 'I', 'O', 'U'). Notice that s contains uppercase and lowercase letters.
Return true if a and b are alike. Otherwise, return false.
Example 1:
Input: s = "book"
Output: true
Explanation: a = "bo" and b = "ok". a has 1 vowel and b has 1 vowel. Therefore, they are alike.
Example 2:
Input: s = "textbook"
Output: false
Explanation: a = "text" and b = "book". a has 1 vowel whereas b has 2. Therefore, they are not alike.
Notice that the vowel o is counted twice.
Constraints:
2 <= s.length <= 1000
s.length is even.
s consists of uppercase and lowercase letters.
*/
fun halvesAreAlike(s: String): Boolean {
var countA = 0
var countB=0
for(i in 0 until s.length/2)
if(s[i].isVowelUpperLowerCase())
countA++
for(i in s.length/2 until s.length)
if(s[i].isVowelUpperLowerCase())
countB++
return countA == countB
}
fun Char.isVowelUpperLowerCase() = charArrayOf('a', 'e', 'i', 'o', 'u', 'A', 'E', 'I', 'O', 'U').any{ it==this }