### no_adjacent
Finds Maximum sum when no two elements are adjacent in a list.
Time complexity `O(N)`, Space complexity `O(1)`.
### Quick Start
```rust
use no_adjacent::interface::calculate;
fn main() {
let list = [2, 1, 4, 6, 8, 9, 18];
let sum = calculate(&list);
println!("sum {}", sum); // 32
}
```