LeetCode in Kotlin
1832. Check if the Sentence Is Pangram
Easy
A pangram is a sentence where every letter of the English alphabet appears at least once.
Given a string sentence containing only lowercase English letters, return true if sentence is a pangram, or false otherwise.
Example 1:
Input: sentence = “thequickbrownfoxjumpsoverthelazydog”
Output: true
Explanation: sentence contains at least one of every letter of the English alphabet.
Example 2:
Input: sentence = “leetcode”
Output: false
Constraints:
1 <= sentence.length <= 1000sentenceconsists of lowercase English letters.
Solution
class Solution {
fun checkIfPangram(sentence: String): Boolean {
val alphabet: MutableSet<Char> = HashSet()
for (c in sentence.toCharArray()) {
alphabet.add(c)
}
return alphabet.size == 26
}
}