링크

자바 첫번째 실패

class Solution {
    public String solution(String[] cards1, String[] cards2, String[] goal) {
        String answer = "";
        int cards1_point =0;
        int cards2_point =0; 
        for(int i=0; i<goal.length;i++){
            if (goal[i].equals(cards1[cards1_point])){ 
                cards1_point +=1;
            }else if(goal[i].equals(cards2[cards2_point]) ){ 
                cards2_point +=1;                
            }else{
                break;
            }
        } 
        if(cards1_point+cards2_point == goal.length){
            return "Yes";
        }
        return "No";
    }
}

범위밖이라는 오류가 나온다.
어떻게 하지 하고 생각했는데 조건문은 앞에서 충족하지 못하면 넘어간다.
그러니 조건문 앞단에 범위를 추가해주면 된다.

자바 완성

class Solution {
    public String solution(String[] cards1, String[] cards2, String[] goal) {
        String answer = "";
        int cards1_point =0;
        int cards2_point =0; 
        for(int i=0; i<goal.length;i++){
            if (cards1.length>cards1_point && goal[i].equals(cards1[cards1_point])){ 
                cards1_point +=1;
            }else if(cards2.length>cards2_point &&goal[i].equals(cards2[cards2_point])){ 
                cards2_point +=1;                
            }else{
                break;
            }
        } 
        if(cards1_point+cards2_point == goal.length){
            return "Yes";
        }
        return "No";
    }
}