From 444a65fb2e310cfd278a8c2d913cae7ef9e5aad9 Mon Sep 17 00:00:00 2001
From: rl544 <111494264+rl544@users.noreply.github.com>
Date: Thu, 15 Dec 2022 09:48:27 +0900
Subject: [PATCH] =?UTF-8?q?uploaded=20at=202022.=2012.=2015.=20=EC=98=A4?=
 =?UTF-8?q?=EC=A0=84=209:48:26?=
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---
 .../[카카오 인턴] 키패드 누르기/solution.java | 70 +++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 programmers/[카카오 인턴] 키패드 누르기/solution.java

diff --git a/programmers/[카카오 인턴] 키패드 누르기/solution.java b/programmers/[카카오 인턴] 키패드 누르기/solution.java
new file mode 100644
index 0000000..f706577
--- /dev/null
+++ b/programmers/[카카오 인턴] 키패드 누르기/solution.java	
@@ -0,0 +1,70 @@
+// [문제 링크]: https://school.programmers.co.kr/learn/courses/30/lessons/67256
+
+import java.util.*;
+class Solution {
+    private int[] lp;
+    private int[] rp;
+    private static int[] checkin(int i, StringBuilder answer, int[] array, String aap, int[] pos){
+        for (int j : array){
+            if(i == j){
+                answer.append(aap);
+                System.out.println(aap);
+                pos = position(i);
+                
+            }
+        }
+        return pos;
+    }
+    private static int[][] checkin(int i, StringBuilder answer, int[] array, String aap, int[] lp, int[] rp){
+        for (int j : array){
+            if(i == j){
+                int[] goOn = position(i);
+                int lv = Math.abs(lp[0]-goOn[0])+Math.abs(lp[1]-goOn[1]);
+                int rv = Math.abs(rp[0]-goOn[0])+Math.abs(rp[1]-goOn[1]);
+                if(lv < rv || (lv == rv && aap.equals("left"))) {
+                    aap = "L";
+                    lp = goOn;
+                }
+                else {
+                    aap = "R";
+                    rp = goOn;
+                }
+                answer.append(aap);
+                System.out.println(aap);
+
+            }
+        }
+        return new int[][] {lp, rp};
+    }
+    private static int[] position(int i){
+        int[] retu = new int[2]; 
+        if(i > 0){
+            int r = (i-1)/3;
+            int c = (i-1)%3;
+            retu[0] = r;
+            retu[1] = c;
+        } else {
+            retu[0] = 3;
+            retu[1] = 1;
+        }
+        return retu;
+    }
+    public String solution(int[] numbers, String hand) {
+        StringBuilder answer = new StringBuilder();
+        int[] left = {1,4,7};
+        int[] right = {3,6,9};
+        int[] mid = {2,5,8,0};
+        int[] lp = {3, 0};
+        int[] rp = {3, 2};
+        List leftList = Arrays.asList(left);
+        for (int i : numbers){
+            lp = checkin(i, answer, left, "L", lp);
+            rp = checkin(i, answer, right, "R", rp);
+            int[][] result = checkin(i, answer, mid, hand, lp, rp);
+            lp = result[0];
+            rp = result[1];
+            System.out.println("Lp" + Arrays.toString(lp) +"Rp "+ Arrays.toString(rp));
+        }
+        return answer.toString();
+    }
+}
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