From 8ecae8d997bf1847b9c779234b32999bc26775bc Mon Sep 17 00:00:00 2001
From: gretea5 <gretea4489@gmail.com>
Date: Wed, 29 Nov 2023 00:36:12 +0900
Subject: [PATCH] =?UTF-8?q?=EB=B0=95=EC=9E=A5=ED=9B=88:=20=EC=B9=98?=
 =?UTF-8?q?=ED=82=A8=20=EB=B0=B0=EB=8B=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 ...355\202\250 \353\260\260\353\213\254.java" | 84 +++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 "JangHoonPark/week09/\354\271\230\355\202\250 \353\260\260\353\213\254.java"

diff --git "a/JangHoonPark/week09/\354\271\230\355\202\250 \353\260\260\353\213\254.java" "b/JangHoonPark/week09/\354\271\230\355\202\250 \353\260\260\353\213\254.java"
new file mode 100644
index 0000000..b59b899
--- /dev/null
+++ "b/JangHoonPark/week09/\354\271\230\355\202\250 \353\260\260\353\213\254.java"	
@@ -0,0 +1,84 @@
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.io.IOException;
+import java.util.StringTokenizer;
+import java.util.ArrayList;
+
+public class Main {
+    private static class Point {
+        int x;
+        int y;
+
+        Point(int x, int y) {
+            this.x = x;
+            this.y = y;
+        }
+    }
+    private static int N, M;
+    private static int answer;
+    private static ArrayList<Point> chickenPointList;
+    private static ArrayList<Point> housePointList;
+    private static boolean[] selected;
+
+    public static void main(String[] args) throws IOException {
+        input();
+        solve();
+    }
+
+    private static void input() throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        StringTokenizer st = new StringTokenizer(br.readLine(), " ");
+
+        N = Integer.parseInt(st.nextToken());
+        M = Integer.parseInt(st.nextToken());
+
+        chickenPointList = new ArrayList<>();
+        housePointList = new ArrayList<>();
+
+        for(int i = 0; i < N; i++) {
+            st = new StringTokenizer(br.readLine(), " ");
+            for(int j = 0; j < N; j++) {
+                int board = Integer.parseInt(st.nextToken());
+                if(board == 1) housePointList.add(new Point(i, j));
+                else if(board == 2) chickenPointList.add(new Point(i, j));
+            }
+        }
+
+        selected = new boolean[chickenPointList.size()];
+
+        br.close();
+    }
+
+    private static void solve() {
+        answer = Integer.MAX_VALUE;
+        backtracking(0, 0);
+        System.out.print(answer);
+    }
+
+    private static void backtracking(int count, int idx) {
+        if(count == M) {
+            int totalDistance = 0;
+            for(int i = 0; i < housePointList.size(); i++) {
+                int minDistance = Integer.MAX_VALUE;
+                for(int j = 0; j < chickenPointList.size(); j++) {
+                    if(selected[j]) {
+                        int distance = Math.abs(housePointList.get(i).x - chickenPointList.get(j).x)
+                                + Math.abs(housePointList.get(i).y - chickenPointList.get(j).y);
+                        minDistance = Math.min(minDistance, distance);
+                    }
+                }
+                totalDistance += minDistance;
+            }
+            answer = Math.min(totalDistance, answer);
+            return;
+        }
+
+        for(int i = idx; i < chickenPointList.size(); i++) {
+            if(!selected[i]) {
+                selected[i] = true;
+                backtracking(count + 1, i + 1);
+                selected[i] = false;
+            }
+        }
+    }
+}
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