fn new() -> Self {
        MyQueue{
            v: VecDeque::new(),
        }
    }
/** Initialize your data structure here. */
Initialize your data structure here.
Initialize your data structure here .
fn new() -> Self {
        MyQueue{
            v: VecDeque::new(),
        }
    }
fn new ( ) -> Self { MyQueue { v : VecDeque :: new ( ) , } }
Initialize your data structure here.
Initialize your data structure here .