Vix

fn find(arr: [i32], target: i32): ?i32 {
    for (i in 0 .. arr.length) {
        if (arr[i] == target) {
            return Some(i)
        }
    }
    return None
}

fn main(): i32 {
    let arr = [10, 20, 30, 40, 50]

    match find(arr, 30) {
        Some(idx) -> print("Found at index: ", idx)
        None      -> print("Not found")
    }

    match find(arr, 99) {
        Some(idx) -> print("Found at index: ", idx)
        None      -> print("Not found")
    }
    return 0
}