This repository features solutions to Google's competitions and Codeforces using Rust.

Solutions to Kick Start Problems, Codeforces and CodeJam are all mixed up in the src/ folder.

In this competitions speed is everything, that's why there's a file, template/src/main.src, which can be used to start solving a problem.

It contains number parsing, and vector parsing for i32, usize, u32, etc. All generics that implement FromStr.

It is also possible to simply read the next line, as a String, using nxt.

Reads a line from stdin and returns it as a String.

fn main() -> Res<()> {
    let string = nxt();
    println!("{}", string);
}

Builds upon nxt, to parse a line as a number into type T: std::str::FromStr.

fn main() -> Res<()> {
    let num = parse_num::<u32>();
    println!("{}", num);
}

Builds upon nxt, to parse a line as a vector of type T: std::str::FromStr.

fn main() -> Res<()> {
    let vector = parse_vec::<u32>();
    println!("{:?}", vector);
}

Enter to the src folder and run:

cargo generate --path ./template --name <problem_name> --force

Place your solution inside the main function. Create as many helpers as necessary.

From the problem directory:

cargo build --release --target-dir .
./release/<problem_name> < <problem_name>.in

Solved enough to pass to next round. My two solutions worked flawlessly on the first attempt, and also passed the hidden test cases.

After the qualification, as practice, I solved problem 3, Cryptopangrams, inside the cypher.js file. Problem 4 is also solved in datbae.js, very tough problem!

CodeJam 2019 has enabled nodejs v11.13.0!

To use JavaScript transpiling checkout the v1 tag.