[C++] 프로그래머스 행렬의 덧셈

https://school.programmers.co.kr/learn/courses/30/lessons/12950

프로그래머스

#include <string>
#include <vector>

using namespace std;

vector<vector<int>> solution(vector<vector<int>> arr1, vector<vector<int>> arr2) {
    vector<vector<int>> answer(arr1.size(), vector<int> (arr1[0].size(), 0));
    
    for (int row = 0; row < arr1.size(); row++) {
        for (int col = 0; col < arr1[0].size(); col++) {
            answer[row][col] = arr1[row][col] + arr2[row][col];
        }
    }
    return answer;
}