[Level1] 바탕화면 정리 (C++)

#include <string>
#include <vector>
using namespace std;

vector<int> solution(vector<string> wallpaper) {
    // min_x, min_y, max_x, max_y
    vector<int> answer = {52,52,-1,-1};
    
    int x = 0;
    for(auto paper : wallpaper) {
        int y = 0;
        for(auto ch : paper) {
            if(ch == '#') {
                answer.at(0) = min(x, answer.at(0));
                answer.at(1) = min(y, answer.at(1));
                answer.at(2) = max(x+1, answer.at(2));
                answer.at(3) = max(y+1, answer.at(3));
            }
            y++;
        }
        x++;
    }
    
    return answer;
}