diff --git a/programmers/햄버거 만들기/solution.java b/programmers/햄버거 만들기/solution.java
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+++ b/programmers/햄버거 만들기/solution.java	
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+// [문제 링크]: https://school.programmers.co.kr/learn/courses/30/lessons/133502
+
+import java.util.*;
+
+class Solution {
+    public int solution(int[] ingr) {
+        int answer = 0;
+		ArrayList<Integer> list = new ArrayList<>();
+		ArrayList<Integer> list2 = new ArrayList<>();
+        list2.add(1);
+        list2.add(2);
+        list2.add(3);
+        list2.add(1);
+        for (int i = 0; i < ingr.length; i++){
+            list.add(ingr[i]);
+            if(list.size() >= 4){
+                ArrayList<Integer> list3 = new ArrayList<>();
+                list3.add(list.get(list.size()-4));
+                list3.add(list.get(list.size()-3));
+                list3.add(list.get(list.size()-2));
+                list3.add(list.get(list.size()-1));
+                if(list3.equals(list2)){
+                    answer++;
+                    list.remove(list.size()-1);                    
+                    list.remove(list.size()-1);                    
+                    list.remove(list.size()-1);                
+                    list.remove(list.size()-1);                    
+                }
+            }
+        }
+        
+        return answer;
+    }
+}
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