Merge pull request #1363 from AlgorithmWithGod/Seol-JY

[20251109] BOJ / G4 / 램프 / 설진영

Author: ShinHeeEul

Seol-JY/202511/09 BOJ G4 램프.md

@@ -0,0 +1,46 @@
+```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());
+        
+        String[] rows = new String[N];
+        for (int i = 0; i < N; i++) {
+            rows[i] = br.readLine();
+        }
+        
+        int K = Integer.parseInt(br.readLine());
+        
+        Map<String, Integer> patternCount = new HashMap<>();
+        for (String row : rows) {
+            patternCount.put(row, patternCount.getOrDefault(row, 0) + 1);
+        }
+        
+        int maxRows = 0;
+        
+        for (Map.Entry<String, Integer> entry : patternCount.entrySet()) {
+            String pattern = entry.getKey();
+            int count = entry.getValue();
+            
+            int zerosCount = 0;
+            for (char c : pattern.toCharArray()) {
+                if (c == '0') {
+                    zerosCount++;
+                }
+            }
+            
+            if (zerosCount <= K && (K - zerosCount) % 2 == 0) {
+                maxRows = Math.max(maxRows, count);
+            }
+        }
+        
+        System.out.println(maxRows);
+    }
+}
+```