Module sudoku_rs::grade

use human-like dfs algorithm for sudoku grade

use sudoku_rs::{board, grade};

let mut b = board::Board::new();
let g = grade::Grade::new();
let scores = g.grade(&mut b);
println!("{:?}", scores);

this mod doesn't care of unique but inunique sudoku's complexity will be higher on average

Structs

Grade
Score	instand of grand return dfs complexity show us how hard to find a correct solution and empty slot count show how many slot need to fill