Question

How to remove an element from a set in Rust

Answer 1

use std::collections::HashSet;

fn main() {
    let mut set: HashSet<i32> = HashSet::new();
    set.insert(1);
    set.insert(2);
    set.insert(3);
    set.insert(4);

    // Remove element
    set.remove(&2);

    println!("{:?}", set);
}


    
/*
run:

{4, 3, 1}
   
*/
  

 

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