sudoku 0.2.1

A sudoku solver library
Documentation 
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Sudoku
======

[![Crates.io Status](http://meritbadge.herokuapp.com/sudoku)](https://crates.io/crates/sudoku)

> A Rust library with the only goal of solving sudokus

# Usage Example


```rust
extern crate sudoku;

use sudoku::Sudoku;

fn main() {
    // Pipes are ignored, you can also omit them
    let sudoku_str = "\
___|2__|_63
3__|__5|4_1
__1|__3|98_
___|___|_9_
___|538|___
_3_|___|___
_26|3__|5__
5_3|7__|__8
47_|__1|___";

    let mut sudoku = Sudoku::from_str(sudoku_str).unwrap();
    sudoku.solve();
    println!("{}", sudoku);
}
```

# To do list


- [ ] C bindings
- [ ] Replace usages of `HashSet` by a special struct based on a `u16` (we can use each bit as a boolean flag to indicate if the number at the given index is present)
- [ ] Benchmarks
- [ ] Algorithm improvements