diff --git "a/LiiNi-coder/202511/15 PGM \354\235\230\354\203\201.md" "b/LiiNi-coder/202511/15 PGM \354\235\230\354\203\201.md"
new file mode 100644
index 00000000..68e28c69
--- /dev/null
+++ "b/LiiNi-coder/202511/15 PGM \354\235\230\354\203\201.md"	
@@ -0,0 +1,21 @@
+```java
+import java.util.*;
+
+class Solution {
+    public int solution(String[][] clothes) {
+        Map<String, Integer> countByType = new HashMap<>();
+        for (String[] cloth : clothes) {
+            String type = cloth[1];
+            countByType.put(type, countByType.getOrDefault(type, 0) + 1);
+        }
+        int combinations = 1;
+        for (int count : countByType.values()) {
+            combinations *= (count + 1);
+        }
+        combinations -= 1;
+
+        return combinations;
+    }
+}
+
+```