From 3ac12bc7299115e61673db6113709d3976f9ed83 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: Tue, 25 Nov 2025 16:51:09 +0900
Subject: [PATCH] =?UTF-8?q?[20251125]=20BOJ=20/=20G5=20/=20=EC=88=A8?=
 =?UTF-8?q?=EB=B0=94=EA=BC=AD=EC=A7=88=203=20/=20=EA=B0=95=EC=8B=A0?=
 =?UTF-8?q?=EC=A7=80?=
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Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...\353\260\224\352\274\255\354\247\210 3.md" | 52 +++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 "ksinji/202511/26 BOJ \354\210\250\353\260\224\352\274\255\354\247\210 3.md"

diff --git "a/ksinji/202511/26 BOJ \354\210\250\353\260\224\352\274\255\354\247\210 3.md" "b/ksinji/202511/26 BOJ \354\210\250\353\260\224\352\274\255\354\247\210 3.md"
new file mode 100644
index 00000000..6c549b8b
--- /dev/null
+++ "b/ksinji/202511/26 BOJ \354\210\250\353\260\224\352\274\255\354\247\210 3.md"	
@@ -0,0 +1,52 @@
+```java
+import java.io.*;
+import java.util.*;
+
+public class Main {
+    public static void main(String[] args) throws Exception {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        StringTokenizer st = new StringTokenizer(br.readLine());
+
+        int n = Integer.parseInt(st.nextToken());
+        int k = Integer.parseInt(st.nextToken());
+        
+        if (n >= k) {
+            System.out.print(n-k);
+            return;
+        }
+
+        Deque<Integer> dq = new ArrayDeque<>();
+        int[] time = new int[100001];
+        Arrays.fill(time, Integer.MAX_VALUE);
+        time[n] = 0;
+        dq.add(n);
+        
+        while(!dq.isEmpty()){
+            int cur = dq.pollFirst();
+
+            if (cur == k) {
+                System.out.println(time[cur]);
+                return;
+            }
+
+            int next = cur * 2;
+            if (next <= 100000 && time[next] > time[cur]) {
+                time[next] = time[cur];
+                dq.addFirst(next);
+            }
+
+            next = cur - 1;
+            if (next >= 0 && time[next] > time[cur] + 1) {
+                time[next] = time[cur] + 1;
+                dq.addLast(next);
+            }
+
+            next = cur + 1;
+            if (next <= 100000 && time[next] > time[cur] + 1) {
+                time[next] = time[cur] + 1;
+                dq.addLast(next);
+            }
+        }
+    }
+}
+```