diff --git "a/LiiNi-coder/202511/06 PGM \353\241\244\354\274\200\354\235\264\355\201\254 \354\236\220\353\245\264\352\270\260.md" "b/LiiNi-coder/202511/06 PGM \353\241\244\354\274\200\354\235\264\355\201\254 \354\236\220\353\245\264\352\270\260.md"
new file mode 100644
index 00000000..9d438a39
--- /dev/null
+++ "b/LiiNi-coder/202511/06 PGM \353\241\244\354\274\200\354\235\264\355\201\254 \354\236\220\353\245\264\352\270\260.md"	
@@ -0,0 +1,30 @@
+```java
+import java.util.*;
+
+class Solution {
+    public int solution(int[] toppings) {
+        int answer=0;
+        HashMap<Integer, Integer> r = new HashMap<>();
+        for(int topping: toppings){
+            if(!r.containsKey(topping)){
+                r.put(topping, 0);
+            }
+            r.put(topping, r.get(topping)+1);
+        }
+        HashMap<Integer, Integer> l = new HashMap<>();
+        for(int topping: toppings){
+            if(!l.containsKey(topping)){
+                l.put(topping, 0);
+            }
+            l.put(topping, l.get(topping)+1);
+            r.put(topping, r.get(topping)-1);
+            if(r.get(topping) == 0)
+                r.remove(topping);
+            if(l.size() == r.size())
+                answer++;
+        }
+        return answer;
+    }
+    
+}
+```