From b79eed860b209f65d9988e1feb6890f86767cb9f Mon Sep 17 00:00:00 2001
From: Jonghwan Lee <123362165+0224LJH@users.noreply.github.com>
Date: Tue, 7 Oct 2025 21:52:08 +0900
Subject: [PATCH] =?UTF-8?q?[20251007]=20BOJ=20/=20G5=20/=20=EA=B0=80?=
 =?UTF-8?q?=EC=A7=80=EA=B3=A0=20=EB=85=B8=EB=8A=94=201=20/=20=EC=9D=B4?=
 =?UTF-8?q?=EC=A2=85=ED=99=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...352\263\240 \353\205\270\353\212\224 1.md" | 34 +++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 "0224LJH/202510/07 \352\260\200\354\247\200\352\263\240 \353\205\270\353\212\224 1.md"

diff --git "a/0224LJH/202510/07 \352\260\200\354\247\200\352\263\240 \353\205\270\353\212\224 1.md" "b/0224LJH/202510/07 \352\260\200\354\247\200\352\263\240 \353\205\270\353\212\224 1.md"
new file mode 100644
index 00000000..5f1dfc08
--- /dev/null
+++ "b/0224LJH/202510/07 \352\260\200\354\247\200\352\263\240 \353\205\270\353\212\224 1.md"	
@@ -0,0 +1,34 @@
+```java
+import java.util.*;
+import java.io.*;
+
+public class Main {
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        int size = Integer.parseInt(br.readLine());  
+        boolean[] visited = new boolean[size];
+
+        int remainder = 1 % size;
+        int length = 1;
+
+        // 1을 나눈 나머지를 저장하고 방문을 표시
+        visited[remainder] = true;
+
+        while (remainder != 0) {
+            // 새로운 수를 만드는 방법: 나머지를 10배하고 1을 더함
+            remainder = (remainder * 10 + 1) % size;
+            length++;
+
+            if (visited[remainder]) {
+                System.out.println(-1);
+                return;
+            }
+
+            visited[remainder] = true;
+        }
+
+        System.out.println(length);
+    }
+}
+
+```