문제

https://programmers.co.kr/learn/courses/30/lessons/12950?language=javascript

풀이

function solution(arr1, arr2) {
    
    const answer = [];
    
    for (let i = 0; i < arr1.length; i++) {
        const row = [];
        
        for (let j = 0; j < arr1[0].length; j++) {
            row.push(arr1[i][j] + arr2[i][j]);
        }
        
        answer.push(row);
    }
    
    return answer;
}