# Iterator adaptors ## Example Execute the following command to run [`./solutions/examples/iter_adaptors.rs`](https://github.com/Cyfrin/rust-crash-course/blob/main/topics/iterator_adaptors/solutions/examples/iter_adaptors.rs) ```shell cargo run --example iter_adaptors ``` ## Exercises Exercises are in [`./exercises/src/lib.rs`](https://github.com/Cyfrin/rust-crash-course/blob/main/topics/iterator_adaptors/exercises/src/lib.rs) ### Exercise 1 ```rust pub fn filter_non_zero(v: Vec<u32>) -> Vec<u32> { todo!(); } ``` Return a vector where each element is greater than 0. ### Exercise 2 ```rust pub fn to_string(v: Vec<&str>) -> Vec<String> { todo!(); } ``` Convert vector of `&str` into a vector of `String`. ### Exercise 3 ```rust pub fn to_hash_map(v: Vec<(String, u32)>) -> HashMap<String, u32> { todo!(); } ``` Convert a vector of `(String, u32)` into a `HashMap<String, u32>`. ## Test ```shell cargo test ```