Rust Vector creation & slicing

Last update on December 21 2024 10:19:25 (UTC/GMT +8 hours)

Write a Rust program that creates a vector of integers from 1 to 10. Slice the vector to get a sub-vector containing elements from index 3 to index 7 (inclusive). Print the sub-vector.

Sample Solution:

Rust Code:

fn main() {
    // Create a vector of integers from 1 to 10
    let mut numbers: Vec = (1..=10).collect();

    // Slice the vector to get a sub-vector containing elements from index 3 to index 7 (inclusive)
    let sub_vector = &numbers[3..=7];

    // Print the sub-vector
    println!("Sub-Vector: {:?}", sub_vector);
}

Output:

Sub-Vector: [4, 5, 6, 7, 8]

Explanation:

Here is a brief explanation of the above Rust code:

• fn main() { ... }: This line defines the main function, which is the entry point of the Rust program.
• let mut numbers: Vec<i32> = (1..=10).collect();: This line creates a vector named numbers of type Vec<i32> and initializes it with integers from 1 to 10 using the collect() method on a range.
• let sub_vector = &numbers[3..=7];: This line slices the 'numbers' vector to get a sub-vector containing elements from index 3 to index 7 (inclusive). The '&' symbol is used to borrow a reference to the sub-vector.
• println!("Sub-Vector: {:?}", sub_vector);: This line prints the sub-vector to the console using debug formatting. The {:?} format specifier is used to print the elements of the vector.

Rust Code Editor:

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