refactored

src/queue.rs

@@ -1,24 +0,0 @@
-pub struct Queue<T> {
-    queue: Vec<T>,
-}
-
-impl<T> Queue<T> {
-    pub fn new() -> Self {
-        Queue { queue: Vec::new() }
-    }
-    pub fn length(&self) -> usize {
-        self.queue.len()
-    }
-    pub fn enqueue(&mut self, item: T) {
-        self.queue.push(item)
-    }
-    pub fn dequeue(&mut self) -> T {
-        self.queue.remove(0)
-    }
-    pub fn is_empty(&self) -> bool {
-        self.queue.is_empty()
-    }
-    pub fn peek(&self) -> Option<&T> {
-        self.queue.first()
-    }
-}