show loops per second while running
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3841F1C27E6F0E14
103
src/main.rs
103
src/main.rs
@ -1,5 +1,7 @@
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use std::time::Instant;
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const MAX_BLOCK_SIZE: usize = 10;
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struct SField {
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field: Vec<usize>,
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fixed: Vec<usize>,
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@ -13,46 +15,50 @@ struct SField {
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impl SField {
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pub fn new(block_size: usize) -> SField {
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if block_size > MAX_BLOCK_SIZE {
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panic!("block size cannot be larger than {}", MAX_BLOCK_SIZE);
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}
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let size = block_size * block_size;
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// EMPTY FIELD
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// let field = vec![0; size * size];
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// BLOCK_SIZE 4
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// #[rustfmt::skip]
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// let field = vec![
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// 0,15,0,0,0,0,11,4,0,5,0,0,0,0,12,8,
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// 12,0,0,9,0,1,0,5,0,0,8,15,0,0,0,13,
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// 0,0,3,0,0,10,13,0,0,11,4,0,15,0,6,0,
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// 13,10,0,11,0,0,0,14,0,3,2,0,0,9,0,0,
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// 0,0,15,10,8,0,0,0,0,0,14,0,0,6,2,0,
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// 0,0,14,0,0,0,6,0,0,0,0,0,1,0,0,0,
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// 0,11,0,8,3,0,15,1,6,0,0,0,0,0,0,7,
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// 0,6,0,7,0,0,0,0,8,13,0,0,10,0,0,0,
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// 0,14,0,2,0,0,0,0,3,0,5,0,11,15,9,0,
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// 0,0,0,12,11,0,2,0,0,0,0,0,0,0,0,0,
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// 0,8,0,0,6,14,1,0,13,15,0,0,0,0,0,10,
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// 10,0,0,3,9,0,7,0,0,1,0,0,13,12,8,0,
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// 7,0,0,0,0,0,14,0,0,0,0,0,0,0,0,9,
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// 0,3,0,14,0,0,9,6,0,0,0,0,0,4,0,0,
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// 0,4,6,0,0,7,0,0,0,0,0,0,0,0,0,0,
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// 5,2,0,0,0,4,10,15,1,0,3,0,0,0,7,0,
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// ];
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// MANY SOLUTIONS
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#[rustfmt::skip]
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let field = vec![
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0,0,0,0,0,0,0,0,9,
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0,0,0,0,8,9,0,2,0,
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0,0,0,0,2,0,4,0,0,
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0,0,4,0,6,0,0,0,8,
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0,0,0,5,0,0,0,0,0,
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0,6,5,0,0,2,0,7,4,
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0,3,0,0,0,5,0,4,0,
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0,0,1,8,0,0,0,0,0,
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0,0,8,2,0,0,0,6,0,
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0,15,0,0,0,0,11,4,0,5,0,0,0,0,12,8,
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12,0,0,9,0,1,0,5,0,0,8,15,0,0,0,13,
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0,0,3,0,0,10,13,0,0,11,4,0,15,0,6,0,
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13,10,0,11,0,0,0,14,0,3,2,0,0,9,0,0,
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0,0,15,10,8,0,0,0,0,0,14,0,0,6,2,0,
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0,0,14,0,0,0,6,0,0,0,0,0,1,0,0,0,
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0,11,0,8,3,0,15,1,6,0,0,0,0,0,0,7,
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0,6,0,7,0,0,0,0,8,13,0,0,10,0,0,0,
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0,14,0,2,0,0,0,0,3,0,5,0,11,15,9,0,
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0,0,0,12,11,0,2,0,0,0,0,0,0,0,0,0,
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0,8,0,0,6,14,1,0,13,15,0,0,0,0,0,10,
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10,0,0,3,9,0,7,0,0,1,0,0,13,12,8,0,
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7,0,0,0,0,0,14,0,0,0,0,0,0,0,0,9,
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0,3,0,14,0,0,9,6,0,0,0,0,0,4,0,0,
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0,4,6,0,0,7,0,0,0,0,0,0,0,0,0,0,
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5,2,0,0,0,4,10,15,1,0,3,0,0,0,7,0,
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];
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// MANY SOLUTIONS
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// #[rustfmt::skip]
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// let field = vec![
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// 0,0,0,0,0,0,0,0,9,
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// 0,0,0,0,8,9,0,2,0,
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// 0,0,0,0,2,0,4,0,0,
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// 0,0,4,0,6,0,0,0,8,
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// 0,0,0,5,0,0,0,0,0,
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// 0,6,5,0,0,2,0,7,4,
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// 0,3,0,0,0,5,0,4,0,
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// 0,0,1,8,0,0,0,0,0,
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// 0,0,8,2,0,0,0,6,0,
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// ];
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// HARD
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// #[rustfmt::skip]
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// let field = vec![
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@ -124,16 +130,21 @@ impl SField {
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let mut found_solution = false;
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let mut num_solutions = 0;
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//let mut loop_count = 0;
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let mut loop_count = 0;
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let mut last_loop_count = 0;
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let mut now = Instant::now();
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loop {
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//std::thread::sleep_ms(30);
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//self.print_clear();
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//self.print();
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//loop_count += 1;
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//if loop_count % 1000000 == 0 {
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//self.print_clear();
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//self.print();
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//}
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loop_count += 1;
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if now.elapsed().as_millis() >= 1000 {
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now = Instant::now();
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self.print_clear();
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self.print();
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println!("{} loops/s", loop_count - last_loop_count);
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last_loop_count = loop_count;
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}
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if self.is_end() {
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found_solution = true;
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num_solutions += 1;
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@ -334,21 +345,21 @@ impl SField {
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}
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#[inline(always)]
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fn get_row(&self, row: &mut [usize; 9]) {
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fn get_row(&self, row: &mut [usize]) {
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for (idx, row_elem) in row.iter_mut().enumerate() {
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*row_elem = self.get_field_at_pos((self.pos / self.size) * self.size + idx);
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}
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}
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#[inline(always)]
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fn get_col(&self, col: &mut [usize; 9]) {
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fn get_col(&self, col: &mut [usize]) {
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for (idx, col_elem) in col.iter_mut().enumerate() {
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*col_elem = self.get_field_at_pos(idx * self.size + self.pos % self.size);
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}
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}
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#[inline(always)]
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fn get_block(&self, block: &mut [usize; 9]) {
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fn get_block(&self, block: &mut [usize]) {
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let block_start_row = self.pos / self.size / self.block_size * self.block_size;
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let block_start_col = self.pos % self.size / self.block_size * self.block_size;
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@ -362,22 +373,22 @@ impl SField {
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#[inline(always)]
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fn block_ok(&self, nr: usize) -> bool {
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let mut block = [0; 9];
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self.get_block(&mut block);
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let mut block = [0; MAX_BLOCK_SIZE * MAX_BLOCK_SIZE];
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self.get_block(&mut block[0..self.size]);
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!block.contains(&nr)
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}
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#[inline(always)]
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fn row_ok(&self, nr: usize) -> bool {
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let mut row = [0; 9];
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self.get_row(&mut row);
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let mut row = [0; MAX_BLOCK_SIZE * MAX_BLOCK_SIZE];
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self.get_row(&mut row[0..self.size]);
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!row.contains(&nr)
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}
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#[inline(always)]
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fn col_ok(&self, nr: usize) -> bool {
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let mut col = [0; 9];
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self.get_col(&mut col);
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let mut col = [0; MAX_BLOCK_SIZE * MAX_BLOCK_SIZE];
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self.get_col(&mut col[0..self.size]);
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!col.contains(&nr)
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}
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@ -412,7 +423,7 @@ impl SField {
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}
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fn run() -> Result<(), String> {
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let mut field = SField::new(3);
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let mut field = SField::new(4);
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field.build_possible_values_db();
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