Using a range to create a vector of numbers.

Using `filter`

to create lists of selected numbers.

We had two dereference the numbers to be able to compare them.

**examples/filter-vector-of-numbers/src/main.rs**

```
fn main() {
let numbers = (1..100).collect::<Vec<u32>>();
println!("total: {}", numbers.len());
let small = numbers.iter().filter(|num| **num < 10).collect::<Vec<_>>();
println!("small: {}", small.len());
let big = numbers.iter().filter(|num| **num > 80).collect::<Vec<_>>();
println!("big: {}", big.len());
let odd = numbers.iter().filter(|num| *num % 2 == 1).collect::<Vec<_>>();
println!("odd: {}", odd.len());
println!("odd: {:?}", odd);
}
```