Day 40.2.txt

1704. Determine if String Halves Are Alike

You are given a string s of even length. Split this string into two halves of equal lengths, and let a be the first half and b be the second half.

Two strings are alike if they have the same number of vowels ('a', 'e', 'i', 'o', 'u', 'A', 'E', 'I', 'O', 'U'). Notice that s contains uppercase and lowercase letters.

Return true if a and b are alike. Otherwise, return false.

 

Example 1:

Input: s = "book"
Output: true
Explanation: a = "bo" and b = "ok". a has 1 vowel and b has 1 vowel. Therefore, they are alike.
Example 2:

Input: s = "textbook"
Output: false
Explanation: a = "text" and b = "book". a has 1 vowel whereas b has 2. Therefore, they are not alike.
Notice that the vowel o is counted twice.
Example 3:

Input: s = "MerryChristmas"
Output: false
Example 4:

Input: s = "AbCdEfGh"
Output: true
 

Constraints:

2 <= s.length <= 1000
s.length is even.
s consists of uppercase and lowercase letters.



class Solution {
    public boolean halvesAreAlike(String s) {
        s=s.toLowerCase();
        int i,c=0,k=0;
        for(i=0;i<s.length()/2;i++)
        {
            char l=s.charAt(i);
            if(l=='a'||l=='e'||l=='i'||l=='o'||l=='u')
                c++;
            l=s.charAt(i+s.length()/2);
            if(l=='a'||l=='e'||l=='i'||l=='o'||l=='u')
                k++;
        }
        return c==k ? true : false;
    }
}