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problems: add „804. Unique Morse Code Words“

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Signed-off-by: Matej Focko <mfocko@redhat.com>
This commit is contained in:
Matej Focko 2022-08-17 11:48:21 +02:00
parent fa54cd1335
commit 3b7f75f4e8
Signed by: mfocko
GPG key ID: 7C47D46246790496
1 changed files with 47 additions and 0 deletions
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problems/unique-morse-code-words.kt Normal file
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class Solution {
val mapping = arrayOf(
".-",
"-...",
"-.-.",
"-..",
".",
"..-.",
"--.",
"....",
"..",
".---",
"-.-",
".-..",
"--",
"-.",
"---",
".--.",
"--.-",
".-.",
"...",
"-",
"..-",
"...-",
".--",
"-..-",
"-.--",
"--.."
)
private fun charToMorse(c: Char): String = mapping[c - 'a']
fun uniqueMorseRepresentations(words: Array<String>): Int =
words
.map { word ->
word.map { charToMorse(it) }.joinToString(separator = "")
}
.toSet()
.size
}
fun main() {
val s = Solution()
check(s.uniqueMorseRepresentations(arrayOf("gin", "zen", "gig", "msg")) == 2)
check(s.uniqueMorseRepresentations(arrayOf("a")) == 1)
}