diff --git "a/JHLEE325/202510/23 BOJ G5 \354\204\274\354\204\234.md" "b/JHLEE325/202510/23 BOJ G5 \354\204\274\354\204\234.md"
new file mode 100644
index 00000000..45f07a92
--- /dev/null
+++ "b/JHLEE325/202510/23 BOJ G5 \354\204\274\354\204\234.md"	
@@ -0,0 +1,40 @@
+```java
+import java.io.*;
+import java.util.*;
+
+public class Main {
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+
+        int n = Integer.parseInt(br.readLine());
+        int k = Integer.parseInt(br.readLine());
+
+        int[] sensors = new int[n];
+        StringTokenizer st = new StringTokenizer(br.readLine());
+        for (int i = 0; i < n; i++) {
+            sensors[i] = Integer.parseInt(st.nextToken());
+        }
+
+        if (k >= n) {
+            System.out.println(0);
+            return;
+        }
+
+        Arrays.sort(sensors);
+
+        int[] diff = new int[n - 1];
+        for (int i = 0; i < n - 1; i++) {
+            diff[i] = sensors[i + 1] - sensors[i];
+        }
+
+        Arrays.sort(diff);
+
+        int sum = 0;
+        for (int i = 0; i < n - k; i++) {
+            sum += diff[i];
+        }
+
+        System.out.println(sum);
+    }
+}
+```