[LeetCode]#1832. Check if the Sentence Is Pangram

Environment: Python 3.8

Key technique: Counter

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.

Analysis:

  1. if string length is less than 26, return false
  2. Use counter. if key length is less than 26, return false
  3. else case, return True

Solution:

from collections import Counter
class Solution:
def checkIfPangram(self, sentence):
if len(sentence)<26:
return False
if len(Counter(sentence).keys())<26:
return False
else:
return True

Submissions:

Reference:

https://codeleading.com/article/85405645039/