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## Avoid type annotations with a closure instead of a fn

### Function (24 bytes)
A function requires types to be specified for its return value, and for any arguments it takes.

```rust
fn f(a:u8,b:u8)->u8{a*b}
```

[Test function on Rust Playground](https://play.rust-lang.org/?version=stable&mode=debug&edition=2024&gist=cc81277be514fb2357174770ab0fa565)

### Closure (15 bytes)

A closure does not generally require types to be specified for either its return value or any arguments it takes.

```rust
let f=|a,b|a*b;
```

[Test closure on Rust Playground](https://play.rust-lang.org/?version=stable&mode=debug&edition=2024&gist=50791b04366d0a380af84b3b483affb4)