Impl Rust version of solution

This commit is contained in:
Stephen Seo 2021-02-19 14:38:52 +09:00
parent 2c144f0650
commit 436ad23f7f
3 changed files with 245 additions and 2 deletions

223
rust_impl/Cargo.lock generated Normal file
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fn main() { use structopt::StructOpt;
println!("Hello, world!"); use std::collections::HashMap;
#[derive(StructOpt, Debug)]
#[structopt(name = "RunLengthEncoding")]
struct Opts {
input: String,
}
fn main() {
let opts = Opts::from_args();
let mut map: HashMap<char, u32> = HashMap::new();
for c in opts.input.chars() {
map.get_mut(&c).map(|v| *v += 1).or_else(|| {map.insert(c, 1); Some(())});
}
for (c, value) in map {
println!("{} with value {}", c, value);
}
} }