Q:

Rust program to get the capacity of HashSet

belongs to collection: Rust HashSet Programs

YasminRadwan26
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2022-07-18
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In this program, we will create a HashSet to store integer items, and then we will get the capacity of HashSet using the capacity() method. The capacity of HashSet is always the multiple of 7. If we initialize elements more than 7 then and less than 14 it becomes 14.

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YasminRadwan26
2022-07-18
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Program/Source Code:

The source code to get the capacity of HashSet is given below. The given program is compiled and executed successfully.

// Rust program to get the capacity of HashSet

use std::collections::HashSet;
fn main() {
    let mut set: HashSet<_> = [10, 20, 30,40,50].iter().cloned().collect();
    
    println!("HashSet: {:?}", set);
    println!("Capacity of HashSet: {}",set.capacity());
}

Output:

HashSet: {30, 20, 40, 50, 10}
Capacity of HashSet: 7

Explanation:

Here we created a HashSet to store integer elements. Then we got the capacity of HashSet using the capacity() function and printed the result.

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