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format #141

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Jun 17, 2023
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format #141

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8 changes: 1 addition & 7 deletions count-vowel-strings-in-ranges/index.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -2,29 +2,23 @@ package com.github.masx200.leetcode_test.count_vowel_strings_in_ranges

class Solution {
fun vowelStrings(words: Array<String>, queries: Array<IntArray>): IntArray {


val prefixs = IntArray(words.size) { 0 }

words.forEachIndexed { i, s ->
if (i == 0) {

prefixs[i] = booleanToInt(isVowelString(s))
} else {
prefixs[i] = prefixs[i - 1] + booleanToInt(isVowelString(s))

}

}
return IntArray(queries.size) {
val li = queries[it][0]
val ri = queries[it][1]
if (li == ri) booleanToInt(isVowelString(words[li])) else prefixs[ri] - if (li == 0) 0 else prefixs[li - 1]
}
}
private val vowels = hashSetOf('a', 'e', 'i', 'o', 'u')
private val vowels = hashSetOf('a', 'e', 'i', 'o', 'u')
private fun isVowelString(s: String): Boolean {

return s.isNotEmpty() && vowels.contains(s[0]) && vowels.contains(s.last())
}

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