pub trait Heap<T> {
// Required methods
fn push(&mut self, item: T);
fn pop(&mut self) -> Option<T>;
fn is_empty(&self) -> bool;
fn peek(&self) -> Option<&T>;
}pub trait Heap<T> {
// Required methods
fn push(&mut self, item: T);
fn pop(&mut self) -> Option<T>;
fn is_empty(&self) -> bool;
fn peek(&self) -> Option<&T>;
}