CSES - Datatähti 2026 alku

Submission details
Task:	Hypyt
Sender:	asonnine
Submission time:	2025-11-01 10:30:38 +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	WRONG ANSWER	0.00 s	1, 2, 3, 4, 5	details
#3	WRONG ANSWER	0.00 s	1, 2, 3, 4, 5	details
#4	TIME LIMIT EXCEEDED	--	1, 2, 3, 4, 5	details
#5	ACCEPTED	0.00 s	1, 2, 3, 4, 5	details
#6	TIME LIMIT EXCEEDED	--	2, 5	details
#7	WRONG ANSWER	0.85 s	2, 5	details
#8	WRONG ANSWER	0.55 s	2, 5	details
#9	WRONG ANSWER	0.56 s	3, 4, 5	details
#10	WRONG ANSWER	0.70 s	3, 4, 5	details
#11	WRONG ANSWER	0.70 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	0.44 s	5	details
#25	ACCEPTED	0.32 s	5	details
#26	TIME LIMIT EXCEEDED	--	5	details
#27	ACCEPTED	0.33 s	5	details

Code

use std::{io, usize, vec};

#[derive(Debug, Clone)]
struct Row {
    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<bool>> = Vec::new();
    for _ in 0..n {
        let mut input = String::new();
        io::stdin().read_line(&mut input).unwrap();
        map.push(input.trim().chars().map(|x| x == '.').collect());
    }
    let mut rows: Vec<Row> = vec![
        Row {
            connections: Vec::new()
        };
        n
    ];
    for row in 0..n {
        for column in 0..m {
            if map[row][column] {
                for rowi in 0..n {
                    if map[rowi][column] && !rows[row].connections.contains(&rowi) && row != rowi {
                        rows[row].connections.push(rowi);
                    }
                }
            }
        }
    }

    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 rows = rows;
    let queries = queries;

    dbg!(&rows);

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

fn process_query(
    map_rows: &Vec<Row>,
    map: &Vec<Vec<bool>>,
    query: ((usize, usize), (usize, usize)),
) -> i32 {
    let mut steps = 1;
    let rows = map_rows.len();
    let mut used_rows = vec![false; rows];

    if query.0 == query.1 {
        return 0;
    } else if query.0.0 == query.1.0 || query.0.1 == query.1.1 {
        return 1;
    }

    let mut process_rows: Vec<usize> = Vec::new();
    let mut advantages = vec![false; rows];

    advantages[query.0.1] = true;

    for row in 0..rows {
        if map[row][query.0.0] {
            process_rows.push(row);
            used_rows[row] = true;
        }
    }

    let mut can_continue = false;

    loop {
        if used_rows[query.1.1] {
            return steps + 1;
        }

        let mut new_process_rows: Vec<usize> = Vec::new();
        let mut new_advantages = vec![false; rows];

        let mut lowest_score = -1;

        for row in process_rows {
            for rowi in &map_rows[row].connections {
                if !used_rows[*rowi] {
                    used_rows[*rowi] = true;
                    new_process_rows.push(*rowi);
                    can_continue = true;
                    if advantages[row] {
                        new_advantages[*rowi] = true;
                    }
                    if *rowi == query.1.1 {
                        if advantages[row] {
                            if map[row][query.1.0] {
                                return steps + 1;
                            } else {
                                return steps + 2;
                            }
                        } else {
                            if map[row][query.1.0] {
                                lowest_score = steps + 2;
                            } else {
                                lowest_score = steps + 3;
                            }
                        }
                    }
                } else if advantages[row]
                    && !new_advantages[*rowi]
                    && new_process_rows.contains(rowi)
                {
                    new_advantages[*rowi] = true;
                }
            }
        }

        if lowest_score != -1 {
            return lowest_score;
        }

        if !can_continue {
            return -1;
        }

        process_rows = new_process_rows;
        advantages = new_advantages;

        steps += 2;
    }
}

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

Error:

[input/code.rs:62] &rows = [
    Row {
        connections: [
            1,
            3,
        ],
    },
    Row {
        connections: [
            3,
            0,
        ],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [
            1,
            0,
        ],
    },
]

Test 2

Group: 1, 2, 3, 4, 5

Verdict: WRONG ANSWER

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

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

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

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

[input/code.rs:62] &rows = [
    Row {
        connections: [
            1,
            2,
            4,
            5,
            6,
            7,
            8,
            9,
            3,
        ],
    },
    Row {
        connections: [
            0,
            2,
            4,
            5,
            6,
            7,
            8,
            9,
            3,
        ],
    },
    Row {
        connections: [
            0,
            1,
            4,
            5,
            6,
            7,
            8,
            9,
            3,
        ],
    },
    Row {
        connections: [
            0,
            1,
            2,
            4,
            5,
            8,
            6,
            9,
            7,
        ],
    },
    Row {
        connections: [
            0,
            1,
            2,
            5,
            6,
            7,
            8,
            9,
            3,
        ],
    },
    Row {
        connections: [...

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 4 3 1 2 ...` view save

Feedback: Incorrect character on line 2 col 1: expected "2", got "4"
Error:

[input/code.rs:62] &rows = [
    Row {
        connections: [
            3,
            4,
            5,
            6,
            8,
            2,
            7,
            9,
            1,
        ],
    },
    Row {
        connections: [
            9,
            0,
            3,
            4,
            5,
            6,
            7,
            2,
        ],
    },
    Row {
        connections: [
            0,
            4,
            7,
            8,
            9,
            5,
            6,
            1,
            3,
        ],
    },
    Row {
        connections: [
            4,
            5,
            8,
            0,
            6,
            7,
            1,
            2,
            9,
        ],
    },
    Row {
        connections: [
            3,
            5,
            8,
            0,
            6,
            2,
            7,
            9,
            1,
        ],
    },
    Row {
        connections: [
            3,...

Test 4

Group: 1, 2, 3, 4, 5

Verdict: TIME LIMIT EXCEEDED

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

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

user output
(empty)

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

Error:

[input/code.rs:62] &rows = [
    Row {
        connections: [
            5,
            1,
            8,
        ],
    },
    Row {
        connections: [
            0,
            8,
            9,
        ],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [
            5,
            6,
        ],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [
            0,
            3,
            6,
        ],
    },
    Row {
        connections: [
            3,
            5,
        ],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [
            0,
            1,
        ],
    },
    Row {
        connections: [
            1,
        ],
    },
]

Test 6

Group: 2, 5

Verdict: TIME LIMIT EXCEEDED

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

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

user output
(empty)

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
`3 4 2 2 3 ...` view save

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

[input/code.rs:62] &rows = [
    Row {
        connections: [
            2,
            3,
            4,
            8,
            9,
            11,
            12,
            15,
            16,
            20,
            21,
            22,
            23,
            26,
            28,
            29,
            32,
            36,
            37,
            41,
            45,
            46,
            47,
            50,
            52,
            53,
            54,
            62,
            64,
            67,
            68,
            70,
            72,
            74,
            75,
            77,
            78,
            79,
            80,
            84,
            88,
            93,
            96,
            97,
            98,
            99,
            102,
            105,
            106,
            107,
            108,
            109,
            110,
            111,
            112,
            114,
            116,
            120,...

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 4 3 4 3 ...` view save

Feedback: Incorrect character on line 2 col 1: expected "3", got "4"
Error:

[input/code.rs:62] &rows = [
    Row {
        connections: [
            4,
            18,
            22,
            25,
            26,
            27,
            31,
            34,
            39,
            45,
            55,
            59,
            60,
            71,
            76,
            86,
            88,
            90,
            94,
            99,
            103,
            107,
            108,
            118,
            121,
            123,
            126,
            127,
            135,
            144,
            150,
            154,
            157,
            163,
            168,
            174,
            178,
            180,
            181,
            184,
            186,
            189,
            194,
            196,
            202,
            204,
            209,
            217,
            220,
            223,
            229,
            236,
            237,
            246,
            247,
            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 3 2 3 2 ...` view save

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

[input/code.rs:62] &rows = [
    Row {
        connections: [
            2,
            3,
            4,
            5,
            6,
            7,
            8,
            9,
            10,
            12,
            13,
            14,
            15,
            16,
            18,
            19,
            22,
            23,
            24,
            25,
            26,
            27,
            28,
            29,
            30,
            32,
            33,
            34,
            35,
            36,
            37,
            39,
            1,
            11,
            20,
            31,
            21,
            38,
            17,
        ],
    },
    Row {
        connections: [
            0,
            2,
            3,
            4,
            5,
            6,
            7,
            8,
            9,
            10,
            11,
            13,
            15,
            16,
            18,
            19,
            20,...

Test 10

Group: 3, 4, 5

Verdict: WRONG ANSWER

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

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

user output
`2 1 4 2 2 ...` view save

Feedback: Incorrect character on line 3 col 1: expected "3", got "4"
Error:

[input/code.rs:62] &rows = [
    Row {
        connections: [
            1,
            3,
            6,
            8,
            14,
            16,
            18,
            21,
            22,
            24,
            27,
            28,
            29,
            31,
            33,
            35,
            36,
            37,
            39,
            4,
            9,
            11,
            17,
            20,
            23,
            26,
            30,
            34,
            10,
            12,
            13,
            15,
            19,
            25,
            32,
            38,
            5,
            7,
            2,
        ],
    },
    Row {
        connections: [
            3,
            7,
            9,
            10,
            12,
            13,
            15,
            17,
            19,
            20,
            21,
            24,
            25,
            26,
            27,
            30,
            31,...

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
`4 4 4 4 4 ...` view save

Feedback: Incorrect character on line 1 col 1: expected "3", got "4"
Error:

[input/code.rs:62] &rows = [
    Row {
        connections: [
            4,
            11,
            18,
            19,
            36,
            38,
            1,
            5,
            13,
            14,
            16,
            21,
            22,
            26,
            34,
            37,
            2,
            6,
            7,
            9,
            17,
            29,
            35,
            8,
            12,
            28,
            32,
            20,
            27,
            31,
            3,
            23,
            25,
            10,
            15,
            30,
        ],
    },
    Row {
        connections: [
            0,
            5,
            11,
            13,
            14,
            16,
            18,
            21,
            22,
            26,
            34,
            36,
            37,
            9,
            20,
            27,
            31,
            32,
            19,
            25,...

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

Error:

[input/code.rs:62] &rows = [
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [
            5,
            9,
        ],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [
            2,
            9,
        ],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [
            2,
            5,
        ],
    },
]

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

Error:

[input/code.rs:62] &rows = [
    Row {
        connections: [],
    },
]

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

Error:

[input/code.rs:62] &rows = [
    Row {
        connections: [],
    },
    Row {
        connections: [
            3,
            4,
            7,
            9,
            13,
            14,
            17,
            18,
            22,
            25,
            30,
            31,
            32,
            34,
            35,
            36,
            41,
            42,
            43,
            45,
            46,
            47,
            48,
            50,
            52,
            57,
            61,
            64,
            67,
            68,
            69,
            70,
            71,
            72,
            75,
            76,
            77,
            78,
            81,
            83,
            84,
            85,
            86,
            87,
            88,
            91,
            92,
            93,
            94,
            96,
            97,
            98,
            100,
            103,
            106,
            107,...

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

Error:

[input/code.rs:62] &rows = [
    Row {
        connections: [],
    },
]

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

Error:

[input/code.rs:62] &rows = [
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    Row {
        connections: [],
    },
    R...

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)