```rust
#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
#[serde(untagged)]
pub enum Array {
    Regular(RegularArray),
    Cursed(CursedArray),
}

#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
pub struct RegularArray {
    pub len: u32,
    pub stride: u32,
}

#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
pub struct CursedArray {
    indices: Vec<u32>,
}