How to Sort a Vector in Rust - Step by Step Examples

How to Sort a Vector in Rust ?

Answer

To sort a vector in Rust, you can use the sort method available for vectors. This method allows you to sort the elements of a vector in ascending order.

✐ Examples

1 Sort a Vector in Ascending Order

In this example,

We create a vector named vec containing several numeric values.
We call the sort method on the vector vec. This method sorts the elements of the vector in ascending order in place.
Finally, we print the sorted vector to standard output using the println! macro.

Rust Program

fn main() {
    // Step 1: Create a vector
    let mut vec = vec![5, 2, 8, 3, 9, 1];
    
    // Step 2: Sort the vector in ascending order
    vec.sort();
    
    // Step 3: Print the sorted vector
    println!("Sorted vector: {:?}", vec);
}

Output

Sorted vector: [1, 2, 3, 5, 8, 9]

2 Sort a Vector in Descending Order

In this example,

We create a vector named vec containing several numeric values.
We call the sort method on the vector vec, passing a closure that compares elements in descending order. This method sorts the elements of the vector in descending order in place.
Finally, we print the sorted vector to standard output using the println! macro.

Rust Program

fn main() {
    // Step 1: Create a vector
    let mut vec = vec![5, 2, 8, 3, 9, 1];
    
    // Step 2: Sort the vector in descending order
    vec.sort_by(|a, b| b.cmp(a));
    
    // Step 3: Print the sorted vector
    println!("Sorted vector: {:?}", vec);
}

Output

Sorted vector: [9, 8, 5, 3, 2, 1]

Summary

In this tutorial, we learned How to Sort a Vector in Rust language with well detailed examples.

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How to Sort a Vector in Rust - Step by Step Examples

How to Sort a Vector in Rust ?

Answer

✐ Examples

1 Sort a Vector in Ascending Order

Rust Program

Output

2 Sort a Vector in Descending Order

Rust Program

Output

Summary

More Rust Vectors Tutorials