Function tao_of_rust::ch02::collections::binary_heap

pub fn binary_heap()

优先队列：BinaryHeap

Basic usage:

use std::collections::BinaryHeap;
fn binary_heap() {
    let mut heap = BinaryHeap::new();
    assert_eq!(heap.peek(), None);
    heap.push(93);
    heap.push(80);
    heap.push(48);
    heap.push(53);
    heap.push(72);
    heap.push(30);
    heap.push(18);
    heap.push(36);
    heap.push(15);
    heap.push(35);
    heap.push(45);
    assert_eq!(heap.peek(), Some(&93));
    println!("{:?}", heap);  // [93, 80, 48, 53, 72, 30, 18, 36, 15, 35, 45]
}
binary_heap();