From d32fc9200999536cca8aa71e90aaf2a7ef0b81ce Mon Sep 17 00:00:00 2001
From: oncsr <khj20006@naver.com>
Date: Tue, 8 Apr 2025 17:14:34 +0900
Subject: [PATCH] =?UTF-8?q?[20250408]=20BOJ=20/=20G1=20/=20=EB=8B=AC?=
 =?UTF-8?q?=EC=9D=B4=20=EC=B0=A8=EC=98=A4=EB=A5=B8=EB=8B=A4,=20=EA=B0=80?=
 =?UTF-8?q?=EC=9E=90.=20/=20=EA=B6=8C=ED=98=81=EC=A4=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 ...\353\213\244, \352\260\200\354\236\220.md" | 83 +++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 "khj20006/202504/08 BOJ G1 \353\213\254\354\235\264 \354\260\250\354\230\244\353\245\270\353\213\244, \352\260\200\354\236\220.md"

diff --git "a/khj20006/202504/08 BOJ G1 \353\213\254\354\235\264 \354\260\250\354\230\244\353\245\270\353\213\244, \352\260\200\354\236\220.md" "b/khj20006/202504/08 BOJ G1 \353\213\254\354\235\264 \354\260\250\354\230\244\353\245\270\353\213\244, \352\260\200\354\236\220.md"
new file mode 100644
index 00000000..7e99f453
--- /dev/null
+++ "b/khj20006/202504/08 BOJ G1 \353\213\254\354\235\264 \354\260\250\354\230\244\353\245\270\353\213\244, \352\260\200\354\236\220.md"	
@@ -0,0 +1,83 @@
+```java
+
+import java.util.*;
+import java.io.*;
+
+class Main {
+	
+	// IO field
+	static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+	static BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+	static StringTokenizer st = new StringTokenizer("");
+
+	static void nextLine() throws Exception {st = new StringTokenizer(br.readLine());}
+	static String nextToken() throws Exception {
+		while(!st.hasMoreTokens()) nextLine();
+		return st.nextToken();
+	}
+	static int nextInt() throws Exception { return Integer.parseInt(nextToken()); }
+	static long nextLong() throws Exception { return Long.parseLong(nextToken()); }
+	static double nextDouble() throws Exception { return Double.parseDouble(nextToken()); }
+	static void bwEnd() throws Exception {bw.flush();bw.close();}
+	
+	// Additional field
+	
+	static int N, M;
+	static char[][] A;
+	static int[] start;
+	
+	static int[] dx = {1,0,-1,0};
+	static int[] dy = {0,1,0,-1};
+	
+	public static void main(String[] args) throws Exception {
+		
+		ready();
+		solve();
+	
+		bwEnd();
+		
+	}
+	
+	static void ready() throws Exception{
+		
+		N = nextInt();
+		M = nextInt();
+		A = new char[N][M];
+		for(int i=0;i<N;i++) {
+			A[i] = br.readLine().toCharArray();
+			for(int j=0;j<M;j++) if(A[i][j] == '0') start = new int[] {i,j};
+		}
+		
+	}
+	
+	static void solve() throws Exception{
+		
+		boolean[][][] vis = new boolean[N][M][64];
+		Queue<int[]> Q = new LinkedList<>();
+		vis[start[0]][start[1]][0] = true;
+		Q.offer(new int[] {start[0], start[1], 0, 0});
+		while(!Q.isEmpty()) {
+			int[] now = Q.poll();
+			int x = now[0], y = now[1], keys = now[2], t = now[3];
+			if(A[x][y] == '1') {
+				bw.write(t + "\n");
+				return;
+			}
+			for(int i=0;i<4;i++) {
+				int xx = x+dx[i], yy = y+dy[i];
+				if(xx<0 || xx>=N || yy<0 || yy>=M || A[xx][yy] == '#') continue;
+				int nkeys = keys;
+				if(A[xx][yy] >= 'a') nkeys |= (1<<(A[xx][yy]-'a'));
+				if('A' <= A[xx][yy] && A[xx][yy] <= 'F' && (nkeys & (1<<(A[xx][yy]-'A'))) == 0) continue; 
+				if(vis[xx][yy][nkeys]) continue;
+				vis[xx][yy][nkeys] = true;
+				Q.offer(new int[] {xx,yy,nkeys,t+1});
+			}
+		}
+		bw.write("-1");
+		
+	}
+	
+}
+
+```