Execute the following command to run ./solutions/examples/string.rs
cargo run --example stringExercises are in ./exercises/src/lib.rs
pub fn hello() -> String {
todo!();
}Create a function that returns the String "Hello Rust".
pub fn greet(name: &str) -> String {
todo!();
}Create a function returns "Hello " appended with name.
pub fn append(mut s: String) -> String {
todo!();
}Create a function that appends "!" to s.
cargo test