Home » Rust » Rust Programs

Rust program to find the difference between two HashSets

Rust | HashSet Example: Write a program to find the difference between two HashSets.
Last Updated : October 26, 2021

Problem Statement

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

Program/Source Code

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

// Rust program to find the difference 
// between 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].iter().cloned().collect();

    println!("Difference (set1-set2):");
    for diff in set1.difference(&set2) {
        print!("{} ", diff); 
    }
}

Output

Difference (set1-set2):
30 12

Explanation

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

Rust HashSet Programs »

---