Today I have done leetcode's October LeetCoding Challenge with cpp.

October LeetCoding Challenge 17

Description

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.

Solution

class Solution {
public:
  bool checkIfPangram(string sentence) {
    set<char> st(sentence.begin(), sentence.end());
    return st.size() == 26;
  }
};

// Accepted
// 79/79 cases passed (3 ms)
// Your runtime beats 80.34 % of cpp submissions
// Your memory usage beats 31.31 % of cpp submissions (6.7 MB)