diff --git "a/JHLEE325/202510/12 BOJ G5 \354\210\230 \352\263\240\353\245\264\352\270\260.md" "b/JHLEE325/202510/12 BOJ G5 \354\210\230 \352\263\240\353\245\264\352\270\260.md"
new file mode 100644
index 00000000..8f4b88bd
--- /dev/null
+++ "b/JHLEE325/202510/12 BOJ G5 \354\210\230 \352\263\240\353\245\264\352\270\260.md"	
@@ -0,0 +1,44 @@
+```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));
+        StringTokenizer st = new StringTokenizer(br.readLine());
+
+        int n = Integer.parseInt(st.nextToken());
+        int m = Integer.parseInt(st.nextToken());
+
+        int[] arr = new int[n];
+
+        for (int i = 0; i < n; i++) {
+            arr[i] = Integer.parseInt(br.readLine());
+        }
+
+        Arrays.sort(arr);
+
+        int left = 0;
+        int right = 0;
+        int ans = Integer.MAX_VALUE;
+
+        while (right < n) {
+            int diff = arr[right] - arr[left];
+
+            if (diff < m) {
+                right++;
+                continue;
+            }
+            if (diff == m) {
+                ans = m;
+                break;
+            }
+            ans = Math.min(ans, diff);
+            left++;
+
+        }
+
+        System.out.println(ans);
+    }
+}
+```