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Rust Programming Language

Solution Review 2: Return an Array of Squares

Explore how to create and manipulate mutable arrays in Rust by calculating the square of each element using a for loop within functions. Understand how to update arrays in place and prepare for advanced concepts like recursion.

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Solution:

Rust 1.40.0
fn arr_square() -> [i32;5] {
    let mut square:[i32;5] = [1, 2, 3, 4, 5]; // mutable array 
    for i in 0..5 {  // compute the square of each element
        square[i] = square[i] * square[i];
    }
    square
}
fn main(){
    println!("Updated Array : {:?}",arr_square());
}

Explanation

  • On line 2, a mutable array square of type
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