1832. Check if the Sentence Is Pangram

QUESTION:

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 <= 1000
sentence consists of lowercase English letters.

EXPLANATION:

简单题目,就不多说了. 用数字的ascii码值去进行匹配即可.

SOLUTION:

class Solution {
    func checkIfPangram(_ sentence: String) -> Bool {
        
        for i in 97...122 {
            if !sentence.contains(Character(UnicodeScalar(i)!)){
                return false 
            }
        }
        
        return true
    }}
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