leetcode-cn/cplusplus/0707.cpp
MyLinkedList() {
        _head = new ListNodeInner(-1);
		_tail = NULL;
		_size = 0;
    }
/** Initialize your data structure here. */
Initialize your data structure here.
Initialize your data structure here .
MyLinkedList() {
        _head = new ListNodeInner(-1);
		_tail = NULL;
		_size = 0;
    }
MyLinkedList ( ) { _head = new ListNodeInner ( -1 ) ; _tail = NULL ; _size = 0 ; }
Initialize your data structure here.
Initialize your data structure here .