3136_Valid_Word.cpp

/*
3136. Valid Word
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$e"
Output: false
Explanation:
This word contains a '$' character and does not have a consonant.
Constraints:
1 <= word.length <= 20
word consists of English uppercase and lowercase letters, digits, '@', '#', and '$'.
*/
class Solution {
public:
bool isVowel(char ch){
    return (ch=='a' || ch=='e' || ch=='i' ||ch=='o' ||ch=='u' ||ch=='A' ||ch=='E' ||ch=='I' ||ch=='O' ||ch=='U');
}
    bool isValid(string word) {
        if(word.size()<3) return 0;
        int vc = 0 ,cc = 0 ;
        for(char ch:word){
            if(!((ch>='0' && ch<='9') || (ch>='a' && ch<='z') || (ch>='A' && ch<='Z') ) ) return 0;
            if((ch>='a' && ch<='z') || (ch>='A' && ch<='Z')){ if(isVowel(ch))vc++;
            else cc++; }
            
        }
        return (vc>=1 && cc>=1);
    }
};