Home » Rust » Rust Programs

Rust program to find the Union of two HashSets

Rust | HashSet Example: Write a program to find the Union of two HashSets.
Last Updated : October 13, 2021

Problem Statement

In this program, we will create two HashSets to store integer items, and then we will find the Union of both sets and print the result.

Program/Source Code

The source code to find the Union of two HashSets is given below. The given program is compiled and executed successfully.

// Rust program to find the 
// Union of two HashSets

use std::collections::HashSet;

fn main() {
    let set1: HashSet<_> = [10, 15, 30, 20,12].iter().cloned().collect();
    let set2: HashSet<_> = [10, 15, 20,40].iter().cloned().collect();

    println!("Union of set1 and set2:");
    for item in set1.union(&set2) {
        print!("{} ", item); 
    }
}

Output

Union of set1 and set2:
15 12 10 30 20 40

Explanation

Here we created two HashSets to store integer elements. Then we found the union of both sets using the union() method. After that, we printed the result.

Rust HashSet Programs »

---