From 39bfa6d7ccab7670d4ece6a2947685214a6de80e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EC=8B=A0=EC=A7=80?=
 <101992179+ksinji@users.noreply.github.com>
Date: Fri, 14 Nov 2025 19:10:43 +0900
Subject: [PATCH] =?UTF-8?q?[20251114]=20PGM=20/=20LV3=20/=20=EC=97=AC?=
 =?UTF-8?q?=ED=96=89=EA=B2=BD=EB=A1=9C=20/=20=EA=B0=95=EC=8B=A0=EC=A7=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...54\355\226\211\352\262\275\353\241\234.md" | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 "ksinji/202511/14 PGM \354\227\254\355\226\211\352\262\275\353\241\234.md"

diff --git "a/ksinji/202511/14 PGM \354\227\254\355\226\211\352\262\275\353\241\234.md" "b/ksinji/202511/14 PGM \354\227\254\355\226\211\352\262\275\353\241\234.md"
new file mode 100644
index 00000000..ba7ed346
--- /dev/null
+++ "b/ksinji/202511/14 PGM \354\227\254\355\226\211\352\262\275\353\241\234.md"	
@@ -0,0 +1,53 @@
+```
+import java.util.*;
+
+class Solution {
+    private String[][] tickets;
+    private boolean[] used;
+    private List<String> answer;
+    private int n;
+
+    public String[] solution(String[][] tickets) {
+        this.tickets = tickets;
+        this.n = tickets.length;
+        this.used = new boolean[n];
+
+        Arrays.sort(this.tickets, (a, b) -> {
+            if (!a[0].equals(b[0])) {
+                return a[0].compareTo(b[0]);
+            }
+            return a[1].compareTo(b[1]);
+        });
+
+        List<String> path = new ArrayList<>();
+        path.add("ICN");
+
+        dfs("ICN", 0, path);
+
+        return answer.toArray(new String[0]);
+    }
+
+    private boolean dfs(String current, int count, List<String> path) {
+        if (count == n) {
+            answer = new ArrayList<>(path);
+            return true;
+        }
+
+        for (int i = 0; i < n; i++) {
+            if (!used[i] && tickets[i][0].equals(current)) {
+                used[i] = true;
+                path.add(tickets[i][1]);
+
+                if (dfs(tickets[i][1], count + 1, path)) {
+                    return true;
+                }
+
+                path.remove(path.size() - 1);
+                used[i] = false;
+            }
+        }
+
+        return false;
+    }
+}
+```