CSES - Datatähti 2026 alku

Submission details
Task:	Hypyt
Sender:	asonnine
Submission time:	2025-10-27 18:15:18 +0200
Language:	Rust (2021)
Status:	READY
Result:	0

Feedback
group	verdict	score
#1	WRONG ANSWER	0
#2	WRONG ANSWER	0
#3	WRONG ANSWER	0
#4	WRONG ANSWER	0
#5	WRONG ANSWER	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.00 s	1, 2, 3, 4, 5	details
#2	ACCEPTED	0.00 s	1, 2, 3, 4, 5	details
#3	WRONG ANSWER	0.00 s	1, 2, 3, 4, 5	details
#4	ACCEPTED	0.00 s	1, 2, 3, 4, 5	details
#5	ACCEPTED	0.00 s	1, 2, 3, 4, 5	details
#6	WRONG ANSWER	0.32 s	2, 5	details
#7	WRONG ANSWER	0.21 s	2, 5	details
#8	WRONG ANSWER	0.08 s	2, 5	details
#9	WRONG ANSWER	0.87 s	3, 4, 5	details
#10	TIME LIMIT EXCEEDED	--	3, 4, 5	details
#11	WRONG ANSWER	0.89 s	3, 4, 5	details
#12	TIME LIMIT EXCEEDED	--	4, 5	details
#13	TIME LIMIT EXCEEDED	--	4, 5	details
#14	TIME LIMIT EXCEEDED	--	4, 5	details
#15	TIME LIMIT EXCEEDED	--	5	details
#16	TIME LIMIT EXCEEDED	--	5	details
#17	TIME LIMIT EXCEEDED	--	5	details
#18	TIME LIMIT EXCEEDED	--	5	details
#19	TIME LIMIT EXCEEDED	--	5	details
#20	TIME LIMIT EXCEEDED	--	5	details
#21	TIME LIMIT EXCEEDED	--	5	details
#22	ACCEPTED	0.00 s	1, 2, 3, 4, 5	details
#23	ACCEPTED	0.00 s	1, 2, 3, 4, 5	details
#24	ACCEPTED	0.43 s	5	details
#25	ACCEPTED	0.41 s	5	details
#26	TIME LIMIT EXCEEDED	--	5	details
#27	ACCEPTED	0.47 s	5	details

Code

use std::{io, vec};

#[derive(Clone, Debug)]
struct Cell {
    vertical_connections: Vec<usize>,
    horizontal_connections: Vec<usize>,
}

fn main() {
    let mut input = String::new();
    io::stdin().read_line(&mut input).unwrap();
    let (n, m, q): (usize, usize, usize) = {
        let mut iter = input.split_whitespace();
        (
            iter.next().unwrap().parse().unwrap(),
            iter.next().unwrap().parse().unwrap(),
            iter.next().unwrap().parse().unwrap(),
        )
    };
    let mut map: Vec<Vec<char>> = Vec::new();
    for _ in 0..n {
        let mut input = String::new();
        io::stdin().read_line(&mut input).unwrap();
        map.push(input.trim().chars().collect());
    }
    let mut cells: Vec<Vec<Option<Cell>>> = Vec::new();
    for y in 0..n {
        let mut cell_line: Vec<Option<Cell>> = Vec::new();
        for x in 0..m {
            if map[y][x] == '*' {
                cell_line.push(None);
                continue;
            }
            let mut cell = Cell {
                vertical_connections: Vec::new(),
                horizontal_connections: Vec::new(),
            };
            for i in 0..n {
                if map[i][x] == '.' {
                    cell.vertical_connections.push(i);
                }
            }
            for i in 0..m {
                if map[y][i] == '.' {
                    cell.horizontal_connections.push(i);
                }
            }
            cell_line.push(Some(cell));
        }
        cells.push(cell_line);
    }

    let mut queries: Vec<((usize, usize), (usize, usize))> = Vec::new();
    for _ in 0..q {
        let mut input = String::new();
        io::stdin().read_line(&mut input).unwrap();
        let (y1, x1, y2, x2): (usize, usize, usize, usize) = {
            let mut iter = input.split_whitespace();
            (
                iter.next().unwrap().parse().unwrap(),
                iter.next().unwrap().parse().unwrap(),
                iter.next().unwrap().parse().unwrap(),
                iter.next().unwrap().parse().unwrap(),
            )
        };
        queries.push(((x1 - 1, y1 - 1), (x2 - 1, y2 - 1)));
    }

    let cells = cells;
    let queries = queries;

    for query in queries {
        println!("{}", process_query(&cells, query));
    }
}

fn process_query(cells: &Vec<Vec<Option<Cell>>>, query: ((usize, usize), (usize, usize))) -> i32 {
    let mut steps = 0;
    let mut found = false;
    let columns = cells[0].len();
    let rows = cells.len();
    let mut columns_start = vec![false; columns];
    let mut rows_start = vec![false; rows];
    let mut columns_end = vec![false; columns];
    let mut rows_end = vec![false; rows];

    columns_start[query.0.0] = true;
    rows_start[query.0.1] = true;
    columns_end[query.1.0] = true;
    rows_end[query.1.1] = true;

    let mut process_columns_start = columns_start.clone();
    let mut process_rows_start = rows_start.clone();
    let mut process_columns_end = columns_end.clone();
    let mut process_rows_end = rows_end.clone();

    loop {
        steps += 2;
        for i in 0..columns {
            if columns_start[i] && columns_end[i] {
                found = true;
                steps -= 1;
                break;
            }
        }
        for i in 0..rows {
            if rows_start[i] && rows_end[i] {
                found = true;
                steps -= 1;
                break;
            }
        }
        if found {
            break steps;
        }

        let mut new_process_columns_start = vec![false; columns];
        let mut new_process_rows_start = vec![false; rows];
        let mut new_process_columns_end = vec![false; columns];
        let mut new_process_rows_end = vec![false; rows];

        let mut start_continue = false;
        let mut end_continue = false;

        for column in 0..columns {
            if process_columns_start[column] {
                for row in 0..rows {
                    if rows_start[row] {
                        continue;
                    }
                    if cells[row][column].is_some() {
                        new_process_rows_start[row] = true;
                        start_continue = true;
                    }
                }
            }
            if process_columns_end[column] {
                for row in 0..rows {
                    if rows_end[row] {
                        continue;
                    }
                    if cells[row][column].is_some() {
                        new_process_rows_end[row] = true;
                        end_continue = true;
                    }
                }
            }
        }
        for row in 0..rows {
            if process_rows_start[row] {
                for column in 0..columns {
                    if columns_start[column] {
                        continue;
                    }
                    if cells[row][column].is_some() {
                        new_process_columns_start[column] = true;
                        start_continue = true;
                    }
                }
            }
            if process_rows_end[row] {
                for column in 0..columns {
                    if columns_end[column] {
                        continue;
                    }
                    if cells[row][column].is_some() {
                        new_process_columns_end[column] = true;
                        end_continue = true;
                    }
                }
            }
        }

        if !start_continue || !end_continue {
            return -1;
        }
        process_columns_start = new_process_columns_start;
        process_rows_start = new_process_rows_start;
        process_columns_end = new_process_columns_end;
        process_rows_end = new_process_rows_end;

        for column in 0..columns {
            if process_columns_start[column] {
                columns_start[column] = true
            }
            if process_columns_end[column] {
                columns_end[column] = true
            }
        }
        for row in 0..rows {
            if process_rows_start[row] {
                rows_start[row] = true
            }
            if process_rows_end[row] {
                rows_end[row] = true
            }
        }
    }
}

Test details

Test 1 (public)

Group: 1, 2, 3, 4, 5

Verdict: ACCEPTED

input
`4 6 5 ..** ...* ****. ... ...` view save

correct output
`1 0 3 3 -1` view save

user output
`1 0 3 3 -1` view save

Test 2

Group: 1, 2, 3, 4, 5

Verdict: ACCEPTED

input
`10 10 10 .......... ......... ......... .....*.. ...` view save

correct output
`1 2 1 2 2 ...` view save

user output
`1 2 1 2 2 ...` view save

Test 3

Group: 1, 2, 3, 4, 5

Verdict: WRONG ANSWER

input
`10 10 10 .... ****.... .... ...*.. ...` view save

correct output
`1 2 2 1 2 ...` view save

user output
`1 2 2 1 2 ...` view save

Feedback: Incorrect character on line 8 col 1: expected "3", got "2"

Test 4

Group: 1, 2, 3, 4, 5

Verdict: ACCEPTED

input
`10 10 10 **..** ******** .******* .... ...` view save

correct output
`3 4 2 3 4 ...` view save

user output
`3 4 2 3 4 ...` view save

Test 5

Group: 1, 2, 3, 4, 5

Verdict: ACCEPTED

input
`10 10 1 .**. ...* ******** ****.. ...` view save

correct output
`7` view save

user output
`7` view save

Test 6

Group: 2, 5

Verdict: WRONG ANSWER

input
`250 250 250 .........*****.....*.......` view save

correct output
`2 3 3 2 2 ...` view save

user output
`2 2 2 2 2 ...` view save

Feedback: Incorrect character on line 2 col 1: expected "3", got "2"

Test 7

Group: 2, 5

Verdict: WRONG ANSWER

input
`250 250 250 ..................**...` view save

correct output
`2 2 2 2 3 ...` view save

user output
`2 2 2 2 2 ...` view save

Feedback: Incorrect character on line 5 col 1: expected "3", got "2"

Test 8

Group: 2, 5

Verdict: WRONG ANSWER

input
`250 250 250 ....**.*..*......` view save

correct output
`2 3 3 3 3 ...` view save

user output
`2 2 2 2 2 ...` view save

Feedback: Incorrect character on line 2 col 1: expected "3", got "2"

Test 9

Group: 3, 4, 5

Verdict: WRONG ANSWER

input
`40 40 200000 .....................*.....` view save

correct output
`2 2 2 2 2 ...` view save

user output
`2 2 2 2 2 ...` view save

Feedback: Incorrect character on line 32 col 1: expected "3", got "2"

Test 10

Group: 3, 4, 5

Verdict: TIME LIMIT EXCEEDED

input
`40 40 200000 ......***....*.....` view save

correct output
`2 1 3 2 2 ...` view save

user output
(empty)

Test 11

Group: 3, 4, 5

Verdict: WRONG ANSWER

input
`40 40 200000 ....*...**..**...` view save

correct output
`3 3 3 3 3 ...` view save

user output
`2 2 2 3 3 ...` view save

Feedback: Incorrect character on line 1 col 1: expected "3", got "2"

Test 12

Group: 4, 5

Verdict: TIME LIMIT EXCEEDED

input
`80 80 200000 .......*........*......` view save

correct output
`2 2 2 2 2 ...` view save

user output
(empty)

Test 13

Group: 4, 5

Verdict: TIME LIMIT EXCEEDED

input
`80 80 200000 .**......*.......*...` view save

correct output
`3 2 2 3 2 ...` view save

user output
(empty)

Test 14

Group: 4, 5

Verdict: TIME LIMIT EXCEEDED

input
`80 80 200000 *****.**.....*...*...` view save

correct output
`2 3 1 2 2 ...` view save

user output
(empty)

Test 15

Group: 5

Verdict: TIME LIMIT EXCEEDED

input
`250 250 200000 ..........*...........**...` view save

correct output
`3 2 2 2 2 ...` view save

user output
(empty)

Test 16

Group: 5

Verdict: TIME LIMIT EXCEEDED

input
`250 250 200000 ...............*....**...` view save

correct output
`2 2 2 2 2 ...` view save

user output
(empty)

Test 17

Group: 5

Verdict: TIME LIMIT EXCEEDED

input
`250 250 200000 ...***.*****..**...` view save

correct output
`3 3 2 2 2 ...` view save

user output
(empty)

Test 18

Group: 5

Verdict: TIME LIMIT EXCEEDED

input
`250 250 200000 *******.******.**....` view save

correct output
`3 3 3 3 3 ...` view save

user output
(empty)

Test 19

Group: 5

Verdict: TIME LIMIT EXCEEDED

input
`250 250 200000 .*****************************...` view save

correct output
`104 422 145 93 65 ...` view save

user output
(empty)

Test 20

Group: 5

Verdict: TIME LIMIT EXCEEDED

input
`250 250 200000 ..****************************...` view save

correct output
`57 155 38 65 98 ...` view save

user output
(empty)

Test 21

Group: 5

Verdict: TIME LIMIT EXCEEDED

input
`250 250 200000 .*****************************...` view save

correct output
`498 498 498 498 498 ...` view save

user output
(empty)

Test 22

Group: 1, 2, 3, 4, 5

Verdict: ACCEPTED

input
`10 1 10 * * . * ...` view save

correct output
`0 1 1 0 0 ...` view save

user output
`0 1 1 0 0 ...` view save

Test 23

Group: 1, 2, 3, 4, 5

Verdict: ACCEPTED

input
`1 10 10 ........*. 1 7 1 10 1 4 1 7 1 5 1 1 ...` view save

correct output
`1 1 1 1 1 ...` view save

user output
`1 1 1 1 1 ...` view save

Test 24

Group: 5

Verdict: ACCEPTED

input
`250 1 200000 * . * . ...` view save

correct output
`1 1 1 1 1 ...` view save

user output
`1 1 1 1 1 ...` view save

Test 25

Group: 5

Verdict: ACCEPTED

input
`1 250 200000 ..............**...` view save

correct output
`1 1 1 1 1 ...` view save

user output
`1 1 1 1 1 ...` view save

Test 26

Group: 5

Verdict: TIME LIMIT EXCEEDED

input
`250 250 200000 .................................` view save

correct output
`2 2 2 2 2 ...` view save

user output
(empty)

Test 27

Group: 5

Verdict: ACCEPTED

input
`250 250 200000 ******************************...` view save

correct output
`0 0 0 0 0 ...` view save

user output
`0 0 0 0 0 ...` view save

Datatähti 2026 alku

Hypyt

Code

Test details

Test 1 (public)

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Test 16

Test 17

Test 18

Test 19

Test 20

Test 21

Test 22

Test 23

Test 24

Test 25

Test 26

Test 27

Tasks

Submissions (asonnine)