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View Compilation Error

0_0_24663593_9165\Main.java:87: 错误: 找不到符号
			Queue<Integer> queue = new LinkedList<>();
			^
  符号:   类 Queue
  位置: 类 Main.KM
0_0_24663593_9165\Main.java:87: 错误: 找不到符号
			Queue<Integer> queue = new LinkedList<>();
			                           ^
  符号:   类 LinkedList
  位置: 类 Main.KM
2 个错误


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