From b01af57450b72ecc402ca8437ab05581fe54f15f Mon Sep 17 00:00:00 2001
From: LiiNi-coder <97495437+LiiNi-coder@users.noreply.github.com>
Date: Fri, 8 Aug 2025 23:54:05 +0900
Subject: [PATCH] =?UTF-8?q?[20250808]=20BOJ=20/=20G5=20/=20=EB=B9=97?=
 =?UTF-8?q?=EB=AC=BC=20/=20=EC=9D=B4=EC=9D=B8=ED=9D=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../08 BOJ \353\271\227\353\254\274.md"       | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 "LiiNi-coder/202508/08 BOJ \353\271\227\353\254\274.md"

diff --git "a/LiiNi-coder/202508/08 BOJ \353\271\227\353\254\274.md" "b/LiiNi-coder/202508/08 BOJ \353\271\227\353\254\274.md"
new file mode 100644
index 00000000..29e25495
--- /dev/null
+++ "b/LiiNi-coder/202508/08 BOJ \353\271\227\353\254\274.md"	
@@ -0,0 +1,36 @@
+```java
+import java.io.*;
+import java.util.*;
+public class Main {
+	private static BufferedReader br;
+	private static int H, W;
+	private static int[] Walls;
+	private static StringTokenizer st;
+	public static void main(String[] args) throws IOException {
+		br = new BufferedReader(new InputStreamReader(System.in));
+		String[] temp = br.readLine().split(" ");
+		H = Integer.parseInt(temp[0]);
+		W = Integer.parseInt(temp[1]);
+		
+		st = new StringTokenizer(br.readLine());
+		int answer = 0;
+		int sum = 0;
+
+		int leftH = Integer.parseInt(st.nextToken());
+		for(int w = 1; w<W; w++) {
+			int wall = Integer.parseInt(st.nextToken());
+			if(wall < leftH) {
+				sum += leftH - wall;
+				continue;
+			}
+			leftH = wall;
+			answer += sum;
+			sum = 0;
+		}
+		answer -= sum;
+		System.out.println(answer);
+		br.close();
+		
+	}
+}
+```