From 776d73646f40764316bb10c566e3a8bc505c5277 Mon Sep 17 00:00:00 2001
From: Ukj0ng <90972240+Ukj0ng@users.noreply.github.com>
Date: Mon, 16 Feb 2026 23:31:38 +0900
Subject: [PATCH] =?UTF-8?q?[20260216]=20BOJ=20/=20G3=20/=20=ED=94=BC?=
 =?UTF-8?q?=EB=A6=AC=20=EB=B6=80=EB=8A=94=20=EC=82=AC=EB=82=98=EC=9D=B4=20?=
 =?UTF-8?q?/=20=ED=95=9C=EC=A2=85=EC=9A=B1?=
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---
 ...4 \354\202\254\353\202\230\354\235\264.md" | 89 +++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 "Ukj0ng/202602/16 BOJ G3 \355\224\274\353\246\254 \353\266\200\353\212\224 \354\202\254\353\202\230\354\235\264.md"

diff --git "a/Ukj0ng/202602/16 BOJ G3 \355\224\274\353\246\254 \353\266\200\353\212\224 \354\202\254\353\202\230\354\235\264.md" "b/Ukj0ng/202602/16 BOJ G3 \355\224\274\353\246\254 \353\266\200\353\212\224 \354\202\254\353\202\230\354\235\264.md"
new file mode 100644
index 00000000..f475a53a
--- /dev/null
+++ "b/Ukj0ng/202602/16 BOJ G3 \355\224\274\353\246\254 \353\266\200\353\212\224 \354\202\254\353\202\230\354\235\264.md"	
@@ -0,0 +1,89 @@
+```
+import java.io.*;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.StringTokenizer;
+
+public class Main {
+    private static final BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+    private static final BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+    private static Set<Integer> set;
+    private static char[][] map;
+    private static int[] uf, size;
+    private static int N, M;
+
+    public static void main(String[] args) throws IOException {
+        init();
+
+        for (int i = 0; i < N; i++) {
+            for (int j = 0; j < M; j++) {
+                int x = i*M + j;
+                int y = 0;
+                int nx = i;
+                int ny = j;
+                if (map[i][j] == 'U') nx--;
+                else if (map[i][j] == 'D') nx++;
+                else if (map[i][j] == 'L') ny--;
+                else ny++;
+
+                y = nx*M + ny;
+                int root1 = find(x);
+                int root2 = find(y);
+
+                if (root1 == root2) continue;
+                union(root1, root2);
+            }
+        }
+
+        for (int i = 0; i < N*M; i++) {
+            set.add(find(i));
+        }
+
+        bw.write(set.size() + "\n");
+        bw.flush();
+        bw.close();
+        br.close();
+    }
+
+    private static void init() throws IOException {
+        StringTokenizer st = new StringTokenizer(br.readLine());
+        N = Integer.parseInt(st.nextToken());
+        M = Integer.parseInt(st.nextToken());
+
+        map = new char[N][M];
+
+        for (int i = 0; i < N; i++) {
+            String input = br.readLine();
+            for (int j = 0; j < M; j++) {
+                map[i][j] = input.charAt(j);
+            }
+        }
+
+        uf = new int[N*M];
+        size = new int[N*M];
+
+        for (int i = 0; i < N*M; i++) {
+            uf[i] = i;
+            size[i] = 1;
+        }
+
+        set = new HashSet<>();
+    }
+
+    private static void union(int x, int y) {
+        if (size[x] < size[y]) {
+            uf[x] = y;
+            size[y] += size[x];
+        } else {
+            uf[y] = x;
+            size[x] += size[y];
+        }
+    }
+
+    private static int find(int x) {
+        if (uf[x] == x) return x;
+
+        return uf[x] = find(uf[x]);
+    }
+}
+```