8. Check If Two String Arrays are Equivalent

class Solution {
    public boolean arrayStringsAreEqual(String[] word1, String[] word2) {
        String s1=makeString(word1);
        String s2=makeString(word2);
        
        return s1.equals(s2);
    }
    
    String makeString(String[] word){
        StringBuilder sb=new StringBuilder();
        
        for(String s:word){
            sb.append(s);
        }
        
        return sb.toString();
    }
}


class Solution {
    public boolean arrayStringsAreEqual(String[] word1, String[] word2) {
        int arrindex1=0,arrindex2=0;
        int id1=0,id2=0;
        
        while(arrindex1<word1.length && arrindex2<word2.length){
            if(word1[arrindex1].charAt(id1) != word2[arrindex2].charAt(id2)){
                return false;
            }
            id1++;
            id2++;
            
            if(id1==word1[arrindex1].length()){
                id1=0;
                arrindex1++;
            }
            
            if(id2==word2[arrindex2].length()){
                id2=0;
                arrindex2++;
            }
        }
        
        return arrindex1==word1.length && arrindex2==word2.length;
    }
}