How to Rotate Elements in an Array in Rust - Step by Step Examples

How to Rotate Elements in an Array in Rust ?

Answer

To rotate elements in an array using Rust, you can implement a custom rotation function that shifts elements by a specified number of positions.

✐ Examples

1 Rotate Array of Integers

In this example,

We have a vector named intVector containing integers.
We implement a custom rotate_array function that shifts elements by a specified number of positions.
We print the rotated vector to demonstrate the rotation.

Rust Program

fn rotate_array(array: &mut Vec<i32>, positions: usize) {
    let n = array.len();
    let p = positions % n;
    array.reverse();
    array[0..p].reverse();
    array[p..].reverse();
}

fn main() {
    let mut int_vector = vec![1, 2, 3, 4, 5];
    let positions = 2;
    rotate_array(&mut int_vector, positions);
    println!("Rotated Vector: {:?}", int_vector);
}

Output

Rotated Vector: [4, 5, 1, 2, 3]

2 Rotate Array of Strings

In this example,

We have a vector named str_vector containing strings.
We implement a custom rotate_array function that shifts elements by a specified number of positions.
We print the rotated vector to demonstrate the rotation.

Rust Program

fn rotate_array(array: &mut Vec<String>, positions: usize) {
    let n = array.len();
    let p = positions % n;
    array.reverse();
    array[0..p].reverse();
    array[p..].reverse();
}

fn main() {
    let mut str_vector = vec!["apple", "banana", "cherry", "date", "fig"].into_iter().map(String::from).collect();
    let positions = 3;
    rotate_array(&mut str_vector, positions);
    println!("Rotated Vector: {:?}", str_vector);
}

Output

Rotated Vector: ["date", "fig", "apple", "banana", "cherry"]

Summary

In this tutorial, we learned How to Rotate Elements in an Array in Rust language with well detailed examples.

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How to Rotate Elements in an Array in Rust - Step by Step Examples

How to Rotate Elements in an Array in Rust ?

Answer

✐ Examples

1 Rotate Array of Integers

Rust Program

Output

2 Rotate Array of Strings

Rust Program

Output

Summary

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