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View Compilation Error

0_0_27622658_442\Main.java:1: 错误: 类Max_Flow_OJ是公共的, 应在名为 Max_Flow_OJ.java 的文件中声明
public class Max_Flow_OJ {
       ^
0_0_27622658_442\Main.java:17: 错误: 找不到符号
    private static Scanner sc = new Scanner(System.in);
                   ^
  符号:   类 Scanner
  位置: 类 Max_Flow_OJ
0_0_27622658_442\Main.java:17: 错误: 找不到符号
    private static Scanner sc = new Scanner(System.in);
                                    ^
  符号:   类 Scanner
  位置: 类 Max_Flow_OJ
0_0_27622658_442\Main.java:45: 错误: 找不到符号
        Queue<Integer> queue = new LinkedList<Integer>();
        ^
  符号:   类 Queue
  位置: 类 Max_Flow_OJ
0_0_27622658_442\Main.java:45: 错误: 找不到符号
        Queue<Integer> queue = new LinkedList<Integer>();
                                   ^
  符号:   类 LinkedList
  位置: 类 Max_Flow_OJ
5 个错误


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