diff --git "a/JHLEE325/202511/18 BOJ G5 \354\230\245\354\203\201 \354\240\225\354\233\220 \352\276\270\353\257\270\352\270\260.md" "b/JHLEE325/202511/18 BOJ G5 \354\230\245\354\203\201 \354\240\225\354\233\220 \352\276\270\353\257\270\352\270\260.md"
new file mode 100644
index 00000000..0b2876b3
--- /dev/null
+++ "b/JHLEE325/202511/18 BOJ G5 \354\230\245\354\203\201 \354\240\225\354\233\220 \352\276\270\353\257\270\352\270\260.md"	
@@ -0,0 +1,28 @@
+```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));
+        int N = Integer.parseInt(br.readLine());
+
+        long answer = 0;
+        Stack<Integer> stack = new Stack<>();
+
+        for (int i = 0; i < N; i++) {
+            int height = Integer.parseInt(br.readLine());
+
+            while (!stack.isEmpty() && stack.peek() <= height) {
+                stack.pop();
+            }
+
+            answer += stack.size();
+
+            stack.push(height);
+        }
+
+        System.out.println(answer);
+    }
+}
+```