Johann150
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sudoku_constraint_solver
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This commit is contained in:
Johann150 2023-10-08 23:28:12 +02:00
parent 38157d7b5e
commit 39cd50e8fb
Signed by: Johann150
GPG Key ID: 9EE6577A2A06F8F1
4 changed files with 35 additions and 35 deletions
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6
src/board.rs
View File

@ -44,9 +44,9 @@ impl Board {
/**
Set the value of a tile, or removes it if `None` is given.
Returns the previous value or `None`.
Panics if `x` or `y` are beyond the boards dimensions or `value` is greater or equal to `num_options`.
*/
pub fn set_tile(&mut self, x: usize, y: usize, value: Option<usize>) -> Option<usize> {
@ -63,7 +63,7 @@ impl Board {
/**
Get the value of a tile, or `None` if no value is known.
Panics if `x` or `y` are beyond the boards dimensions.
*/
pub fn get_tile(&self, x: usize, y: usize) -> Option<usize> {

2
src/constrain.rs
View File

@ -47,7 +47,7 @@ fn _constrain_board(
valid.retain(|&opt| {
board.set_tile(x, y, Some(opt));
check_fn(&board)
check_fn(board)
});
log::trace!("still valid {valid:?}");

58
src/main.rs
View File

@ -6,35 +6,35 @@ fn main() {
simple_logger::init_with_level(log::Level::Info).unwrap();
let mut board = board::Board::new(9, 9, 9);
board.set_tile(0, 1, Some(6 -1));
board.set_tile(0, 2, Some(8 -1));
board.set_tile(0, 4, Some(3 -1));
board.set_tile(0, 7, Some(7 -1));
board.set_tile(1, 0, Some(2 -1));
board.set_tile(1, 3, Some(9 -1));
board.set_tile(1, 6, Some(1 -1));
board.set_tile(2, 1, Some(4 -1));
board.set_tile(2, 4, Some(8 -1));
board.set_tile(2, 5, Some(1 -1));
board.set_tile(2, 8, Some(3 -1));
board.set_tile(3, 2, Some(7 -1));
board.set_tile(3, 6, Some(4 -1));
board.set_tile(4, 3, Some(8 -1));
board.set_tile(4, 4, Some(1 -1));
board.set_tile(4, 5, Some(9 -1));
board.set_tile(5, 2, Some(9 -1));
board.set_tile(5, 6, Some(2 -1));
board.set_tile(6, 0, Some(7 -1));
board.set_tile(6, 3, Some(3 -1));
board.set_tile(6, 4, Some(9 -1));
board.set_tile(6, 7, Some(4 -1));
board.set_tile(7, 2, Some(2 -1));
board.set_tile(7, 5, Some(5 -1));
board.set_tile(7, 8, Some(6 -1));
board.set_tile(8, 1, Some(3 -1));
board.set_tile(8, 4, Some(7 -1));
board.set_tile(8, 6, Some(9 -1));
board.set_tile(8, 7, Some(5 -1));
board.set_tile(0, 1, Some(6 - 1));
board.set_tile(0, 2, Some(8 - 1));
board.set_tile(0, 4, Some(3 - 1));
board.set_tile(0, 7, Some(7 - 1));
board.set_tile(1, 0, Some(2 - 1));
board.set_tile(1, 3, Some(9 - 1));
board.set_tile(1, 6, Some(1 - 1));
board.set_tile(2, 1, Some(4 - 1));
board.set_tile(2, 4, Some(8 - 1));
board.set_tile(2, 5, Some(1 - 1));
board.set_tile(2, 8, Some(3 - 1));
board.set_tile(3, 2, Some(7 - 1));
board.set_tile(3, 6, Some(4 - 1));
board.set_tile(4, 3, Some(8 - 1));
board.set_tile(4, 4, Some(1 - 1));
board.set_tile(4, 5, Some(9 - 1));
board.set_tile(5, 2, Some(9 - 1));
board.set_tile(5, 6, Some(2 - 1));
board.set_tile(6, 0, Some(7 - 1));
board.set_tile(6, 3, Some(3 - 1));
board.set_tile(6, 4, Some(9 - 1));
board.set_tile(6, 7, Some(4 - 1));
board.set_tile(7, 2, Some(2 - 1));
board.set_tile(7, 5, Some(5 - 1));
board.set_tile(7, 8, Some(6 - 1));
board.set_tile(8, 1, Some(3 - 1));
board.set_tile(8, 4, Some(7 - 1));
board.set_tile(8, 6, Some(9 - 1));
board.set_tile(8, 7, Some(5 - 1));
if constrain::constrain_board(&mut board, &rules::valid_board_sudoku) {
println!("{board}");

4
src/rules.rs
View File

@ -98,8 +98,8 @@ pub fn valid_board_sudoku(board: &Board) -> bool {
}
// check 3x3 cells: must be unique
for x in [0,3,6] {
for y in [0,3,6] {
for x in [0, 3, 6] {
for y in [0, 3, 6] {
let mut set = HashSet::new();
if !get_cell(board, x, y)
.iter()