// TODO: Calculate `a` divided by `b` if `a` is evenly divisible by `b`.
// Otherwise, return a suitable error.
fn divide(a: i64, b: i64) -> Result<i64, DivisionError> {
    match (a, b) {
        (_, 0) => Err(DivisionError::DivideByZero),
        (i64::MIN, -1) => Err(DivisionError::IntegerOverflow),
        _ if a % b != 0 => Err(DivisionError::NotDivisible),
        _ => Ok(a / b),
    }
}

// TODO: Add the correct return type and complete the function body.
// Desired output: `Ok([1, 11, 1426, 3])`
fn result_with_list() -> Result<Vec<i64>, DivisionError> {
    let numbers = [27, 297, 38502, 81];
    numbers.into_iter().map(|n| divide(n, 27)).collect()
}

// TODO: Add the correct return type and complete the function body.
// Desired output: `[Ok(1), Ok(11), Ok(1426), Ok(3)]`
fn list_of_results() -> Vec<Result<i64, DivisionError>> {
    let numbers = [27, 297, 38502, 81];
    numbers.into_iter().map(|n| divide(n, 27)).collect()
}