[프로그래머스][Level1] 키패드 누르기 c++

https://programmers.co.kr/learn/courses/30/lessons/67256 

프로그래머스

 

풀이과정

맨 처음 왼쪽 손가락이 * 키패드에 있고, 오른 손가락이 #에 있다는 것을 잊으면 안 된다.  
그래서 만약 첫 번째나 두 번째로 2, 5, 8, 0을 누를 경우에 손가락이 처음 부분이라면  
거기에서 거리를 계산해줘야 된다. 그러므로 *을 배열의 10번째, #을 배열의 11번째로  
거리를 계산해서 넣어줬다.

numbers int 배열을 char로 착각해서 시간을 날렸다..

#include <string>
#include <vector>

using namespace std;

int num2[12] = {3, 1, 0, 1, 2, 1, 2, 3, 2, 3, 4, 4};
int num5[12] = {2, 2, 1, 2, 1, 0, 1, 2, 1, 2, 3, 3};
int num8[12] = {1, 3, 2, 3, 2, 1, 2, 1, 0, 1, 2, 2};
int num0[12] = {0, 4, 3, 4, 3, 2, 3, 2, 1, 2, 1, 1};

string solution(vector<int> numbers, string hand) {
    string answer = "";

    int left = 10, right = 11;
    for(int i = 0; i < numbers.size(); i++){
        if(numbers[i] == 1 || numbers[i] == 4 || numbers[i] == 7){
            answer += "L";
            left = numbers[i];
        }
        else if(numbers[i] == 3 || numbers[i] == 6 || numbers[i] == 9){
            answer += "R";
            right = numbers[i];
        }
        else if(numbers[i] == 2){
            if(num2[left] > num2[right]){
                answer += "R";
                right = numbers[i];
            }
            else if(num2[left] < num2[right]){
                answer += "L";
                left = numbers[i];
            }
            else {
                if(hand == "left"){
                    answer += "L";
                    left = numbers[i];
                }
                else {
                    answer += "R";
                    right = numbers[i];
                }
            }
        }
        else if(numbers[i] == 5){
            if(num5[left] > num5[right]){
                answer += "R";
                right = numbers[i];
            }
            else if(num5[left] < num5[right]){
                answer += "L";
                left = numbers[i];
            }
            else {
                if(hand == "left"){
                    answer += "L";
                    left = numbers[i];
                }
                else {
                    answer += "R";
                    right = numbers[i];
                }
            }
        }
        else if(numbers[i] == 8){
            if(num8[left] > num8[right]){
                answer += "R";
                right = numbers[i];
            }
            else if(num8[left] < num8[right]){
                answer += "L";
                left = numbers[i];
            }
            else {
                if(hand == "left"){
                    answer += "L";
                    left = numbers[i];
                }
                else {
                    answer += "R";
                    right = numbers[i];
                }
            }
        }
        else if(numbers[i] == 0){
            if(num0[left] > num0[right]){
                answer += "R";
                right = numbers[i];
            }
            else if(num0[left] < num0[right]){
                answer += "L";
                left = numbers[i];
            }
            else {
                if(hand == "left"){
                    answer += "L";
                    left = numbers[i];
                }
                else {
                    answer += "R";
                    right = numbers[i];
                }
            }
        }
    }
    return answer;
}