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@@ -0,0 +1,19 @@
+```java
+import java.util.*;
+
+class Solution {
+    public int solution(int[] citations) {
+        Arrays.sort(citations);
+        
+        for (int i=0; i<citations.length; i++){
+            int h = citations.length - i;
+            
+            if (citations[i] >= h){
+                return h;
+            }    
+        }
+        
+        return 0;
+    }
+}
+```