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View Compilation Error

0_0_23232882_29820.cpp: In constructor 'Node::Node(int, int, int, Node*)':
0_0_23232882_29820.cpp:31:4: error: class 'Node' does not have any field named 'dir'
    dir(_dir)
    ^
0_0_23232882_29820.cpp:31:8: error: '_dir' was not declared in this scope
    dir(_dir)
        ^


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