Find First Palindromic String in the Array.cpp

// Runtime: 188 ms (Top 5.26%) | Memory: 22.9 MB (Top 68.97%)
class Solution {
    bool isPalindrome(string str){
        int i=0 ;
        int j=str.length()-1;
        while( i<= j ){
            if( str[i] != str[j] )
                return false;
            i++;
            j--;
        }
        return true;
    }
public:
    string firstPalindrome(vector<string>& words) {

        for(int i=0 ; i<words.size() ; i++){
            if(isPalindrome(words[i]))
                return words[i];
        }
        return "";
    }
};