From 3685c17736c0dee4293edfd589a598ca38fca1ce Mon Sep 17 00:00:00 2001
From: suyeun84 <81475092+suyeun84@users.noreply.github.com>
Date: Tue, 17 Jun 2025 20:13:22 +0900
Subject: [PATCH] =?UTF-8?q?[20250617]=20BOJ=20/=20G4=20/=20=EC=88=A8?=
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---
 ...\353\260\224\352\274\255\354\247\210 2.md" | 49 +++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 "suyeun84/202506/17 BOJ G4 \354\210\250\353\260\224\352\274\255\354\247\210 2.md"

diff --git "a/suyeun84/202506/17 BOJ G4 \354\210\250\353\260\224\352\274\255\354\247\210 2.md" "b/suyeun84/202506/17 BOJ G4 \354\210\250\353\260\224\352\274\255\354\247\210 2.md"
new file mode 100644
index 00000000..c589b7f0
--- /dev/null
+++ "b/suyeun84/202506/17 BOJ G4 \354\210\250\353\260\224\352\274\255\354\247\210 2.md"	
@@ -0,0 +1,49 @@
+```java
+import java.io.*;
+import java.util.*;
+
+public class boj12851 {
+	static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+	static StringTokenizer st;
+	static void nextLine() throws Exception {st = new StringTokenizer(br.readLine());}
+	static int nextInt() {return Integer.parseInt(st.nextToken());}
+	
+	static int N, K;
+	static int minTime = Integer.MAX_VALUE;
+	static int cnt = 0;
+	static int[] visited = new int[100001];
+	public static void main(String[] args) throws Exception {
+		nextLine();
+		N = nextInt();
+		K = nextInt();
+		bfs();
+		System.out.println(minTime);
+		System.out.println(cnt);
+	}
+	
+	static void bfs() {
+		Queue<Integer> q = new LinkedList<>();
+		q.add(N);
+		visited[N] = 1;
+		while (!q.isEmpty()) {
+			int curr = q.poll();
+			int time = visited[curr];
+			if (curr == K) {
+				if (time-1 < minTime) {
+					minTime = time-1;
+					cnt = 1;
+				} else if (time-1 == minTime) cnt++;
+				continue;
+			}
+			for (int next : new int[] {curr-1, curr+1, curr*2}) {
+				if (next < 0 || next > 100000) continue;
+				
+				if (visited[next] == 0 || visited[next] == time+1) {
+					visited[next] = time+1;
+					q.add(next);
+				}
+			}
+		}
+	}
+}
+```