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Rust program to compare HashSets using equal to (==) operator

Rust | HashSet Example: Write a program to compare HashSets using equal to (==) operator.
Last Updated : October 13, 2021

Problem Statement

In this program, we will create two HashSets to store integer items, and then we will compare HashSets using the equal to "==" operator and print the appropriate message.

Program/Source Code

The source code to compare HashSets using equal to "==" operator is given below. The given program is compiled and executed successfully.

// Rust program to compare HashSets 
// using equal to "==" operator

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();
    let set3: HashSet<_> = [10, 15, 20,40].iter().cloned().collect();
    
    if(set1==set2)
    {
        println!("Set1 and Set2 contains same elements");
    }
    else
    {
        println!("Set1 and Set2 contains different elements");
    }
    
    if(set2==set3)
    {
        println!("Set2 and Set3 contains same elements");
    }
    else
    {
        println!("Set2 and Set3 contains different elements");
    }
}

Output

Set1 and Set2 contains different elements
Set2 and Set3 contains same elements

Explanation

Here we created two HashSets to store integer elements. Then we compared two HashSets using the equal to "==" operator.

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