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  1. fn main() {
  2.     let mut q = std::collections::BinaryHeap::new();
  3.     q.push(-3);
  4.     q.push(-1);
  5.     q.push(-4);
  6.     let top = -(*q.peek().unwrap());
  7.     println!("top = {}", top);
  8.     let is_empty = q.is_empty();
  9.     println!("is_empty = {}", is_empty);
  10.     let popped = -q.pop().unwrap();
  11.     println!("popped = {}", popped);
  12.     println!("q.peek() = {}", -q.peek().unwrap());
  13. }
  14.  
Success #stdin #stdout 0s 4524KB
comments ()
stdin
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Standard input is empty
stdout
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top = 1
is_empty = false
popped = 1
q.peek() = 3
https://ideone.com/hVAayM
heap
language:
Rust (rust 1.56)
created:
5 years ago
visibility:
public

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