42 lines
1.2 KiB
C++

// Source : https://leetcode.com/problems/check-if-the-sentence-is-pangram/
// Author : Hao Chen
// Date : 2021-04-20
/*****************************************************************************************************
*
* 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.
******************************************************************************************************/
class Solution {
public:
bool checkIfPangram(string sentence) {
bool stat[26] = {false};
for(auto& c: sentence) {
stat[c - 'a'] = true;
}
for(auto& s : stat) {
if (!s) return false;
}
return true;
}
};