Link코딩테스트 연습 - 행렬의 덧셈 문제풀이(1)function solution(arr1, arr2) { let answer = []; let row = arr1.length; let col = arr1[0].length; for (let i = 0; i (2)const solution = (arr1, arr2) => arr1.map((row, i) => row.map((val, j) => val + arr2[i][j]) );