[20250805] BOJ / G5 / 수 고르기 / 이강현

Author: lkhyun

lkhyun/202508/05 BOJ G5 수 고르기.md

@@ -0,0 +1,41 @@
+```java
+import java.util.*;
+import java.io.*;
+
+public class Main {
+    static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+    static BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+    static StringTokenizer st;
+    static int N,M;
+    static int[] A;
+
+    public static void main(String[] args) throws Exception {
+        st = new StringTokenizer(br.readLine());
+        N = Integer.parseInt(st.nextToken());
+        M = Integer.parseInt(st.nextToken());
+
+        A = new int[N];
+
+        for (int i = 0; i < N; i++) {
+            A[i] = Integer.parseInt(br.readLine());
+        }
+        Arrays.sort(A);
+
+        int ans = Integer.MAX_VALUE;
+        int left = 0, right = 0;
+        
+        while (right < N && left < N) {
+            int d = A[right] - A[left];
+            
+            if (d >= M) {
+                ans = Math.min(ans, d);
+                left++;
+            } else {
+                right++;
+            }
+        }
+        bw.write(ans+"");
+        bw.close();
+    }
+}
+```