Merge pull request #508 from AlgorithmWithGod/khj20006

[20250720] BOJ / G4 / 젓가락으로 메추리알 집기 / 권혁준

Author: ShinHeeEul

khj20006/202507/20 BOJ G4 젓가락으로 메추리알 집기.md

@@ -0,0 +1,23 @@
+```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));
+
+    public static void main(String[] args) throws Exception {
+        StringTokenizer st = new StringTokenizer(br.readLine());
+        int N = Integer.parseInt(st.nextToken());
+        int M = Integer.parseInt(st.nextToken());
+
+        for(int i=1;i<=N;i++) for(int j=(i%2==1 ? 2 : 1);j<=M;j+=2) {
+            bw.write("? " + i + " " + j + "\n");
+            bw.flush();
+            if(br.readLine().equals("1")) return;
+        }
+
+    }
+
+}
+```