3136. Valid Word

Problem Link

Description

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A word is considered valid if:

• It contains a minimum of 3 characters.
• It contains only digits (0-9), and English letters (uppercase and lowercase).
• It includes at least one vowel.
• It includes at least one consonant.

You are given a string word.

Return true if word is valid, otherwise, return false.

Notes:

• 'a', 'e', 'i', 'o', 'u', and their uppercases are vowels.
• A consonant is an English letter that is not a vowel.

 

Example 1:

Input: word = "234Adas"

Output: true

Explanation:

This word satisfies the conditions.

Example 2:

Input: word = "b3"

Output: false

Explanation:

The length of this word is fewer than 3, and does not have a vowel.

Example 3:

Input: word = "a3$e"

Output: false

Explanation:

This word contains a '{PROBLEM_DESCRIPTION}#39; character and does not have a consonant.

 

Constraints:

• 1 <= word.length <= 20
• word consists of English uppercase and lowercase letters, digits, '@', '#', and '{PROBLEM_DESCRIPTION}#39;.

Solution

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Python3

class Solution:
    def isValid(self, word: str) -> bool:
        if len(word) < 3: return False
 
        vowel = consonant = 0
 
        for x in word:
            if not x.isdigit() and x not in ascii_lowercase and x not in ascii_uppercase:
                return False
            
            if x.isdigit(): continue
            
            if x in "aeiouAEIOU":
                vowel += 1
            else:
                consonant += 1
        
        return vowel > 0 and consonant > 0