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Merged
merged 2 commits into from
May 27, 2025
Merged

add new problems 27.05 #201

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bc7afaa
add 594
Ashwagandha-coder May 27, 2025
6abf309
add 594 prod variant
Ashwagandha-coder May 27, 2025
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18 changes: 18 additions & 0 deletions contest/src/main/java/com/github/contest/hashTable/HashTableLeetcode.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -595,3 +595,21 @@ fun longestPalindrome(words: Array<String>): Int {

return len
}

/**
* 594. Longest Harmonious Subsequence
*/

fun findLHS(nums: IntArray): Int {
val freq = nums.toList().groupingBy { it }.eachCount()
var longest = 0

for ((key, value) in freq) {
val more = key + 1
if (freq.contains(more)) {
longest = maxOf(longest, freq.getOrDefault(more, 0) + value)
}
}

return longest
}
13 changes: 13 additions & 0 deletions contest/src/main/java/com/github/contest/hashTable/HashTableProdVariant.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -151,6 +151,19 @@ fun countVowelSubstringsProdVariantIII(word: String) = sequence {
}
}.sum()

/**
* 594. Longest Harmonious Subsequence
* Prod Variant
*/

fun findLHSProdVariant(nums: IntArray): Int =
nums.toList().groupingBy { it }.eachCount().let { map ->
map.maxOf { (num, value) ->
val more = num + 1
if (map.contains(more)) {
map.getOrDefault(num, 0) + value
} else 0
}
}