README.md

1832. Check if the Sentence Is Pangram

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.

Solutions (Rust)

1. Solution

impl Solution {
    pub fn check_if_pangram(sentence: String) -> bool {
        sentence.bytes().fold(0, |acc, c| match c {
            b'A'..=b'Z' => acc | (1 << (c - b'A')),
            b'a'..=b'z' => acc | (1 << (c - b'a')),
            _ => acc,
        }) == (1 << 26) - 1
    }
}