CSES - Datatähti 2025 alku

Submission details
Task:	Robotti
Sender:	onyx
Submission time:	2024-11-04 00:25:35 +0200
Language:	Rust (2021)
Status:	READY
Result:	0

Feedback
group	verdict	score
#1	WRONG ANSWER	0
#2	WRONG ANSWER	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.00 s	1, 2	details
#2	ACCEPTED	0.00 s	1, 2	details
#3	ACCEPTED	0.00 s	1, 2	details
#4	WRONG ANSWER	0.00 s	1, 2	details
#5	ACCEPTED	0.00 s	1, 2	details
#6	ACCEPTED	0.00 s	1, 2	details
#7	ACCEPTED	0.00 s	1, 2	details
#8	WRONG ANSWER	0.00 s	1, 2	details
#9	WRONG ANSWER	0.00 s	1, 2	details
#10	ACCEPTED	0.00 s	1, 2	details
#11	ACCEPTED	0.00 s	1, 2	details
#12	ACCEPTED	0.01 s	2	details
#13	ACCEPTED	0.01 s	2	details
#14	ACCEPTED	0.04 s	2	details
#15	ACCEPTED	0.06 s	2	details
#16	ACCEPTED	0.07 s	2	details
#17	ACCEPTED	0.01 s	2	details
#18	TIME LIMIT EXCEEDED	--	2	details
#19	TIME LIMIT EXCEEDED	--	2	details
#20	TIME LIMIT EXCEEDED	--	2	details
#21	ACCEPTED	0.01 s	2	details
#22	ACCEPTED	0.69 s	2	details
#23	TIME LIMIT EXCEEDED	--	2	details
#24	TIME LIMIT EXCEEDED	--	2	details

Code

use std::io::{BufRead, BufReader};

fn main() {
    let mut amount = String::new();
    let mut building = String::new();
    let mut reader = BufReader::new(std::io::stdin());
    reader.read_line(&mut amount).unwrap();
    reader.read_line(&mut building).unwrap();

    let building = building.trim();
    let amount = amount.trim().parse::<usize>().unwrap();
    assert!(amount == building.len());

    let (_, mut rooms): (Vec<_>, Vec<_>) = building.char_indices().unzip();

    let mut robot_pos = rooms.iter().position(|&x| x == 'R').unwrap();
    let mut right = rooms[robot_pos..].iter().position(|&x| x == '*');
    let mut left = rooms.iter().rev().collect::<Vec<_>>()[rooms.len() - 1 - robot_pos..]
        .iter()
        .position(|&&x| x == '*');

    let mut steps = 0;
    let mut coins = 0;
    while left.is_some() || right.is_some() {
        let next = if let (Some(l), Some(r)) = (left, right) {
            if l < r {
                robot_pos - l
            } else {
                robot_pos + r
            }
        } else if let (Some(l), None) = (left, right) {
            robot_pos - l
        } else {
            robot_pos + right.unwrap()
        };

        steps += i32::abs(next as i32 - robot_pos as i32);
        robot_pos = next;
        rooms[robot_pos] = '.';
        coins += 1;
        right = rooms[robot_pos..].iter().position(|&x| x == '*');
        left = rooms.iter().rev().collect::<Vec<_>>()[rooms.len() - 1 - robot_pos..]
            .iter()
            .position(|&&x| x == '*');

        if let (Some(l), Some(r)) = (left, right) {
            if l == r {
                break;
            }
        }
    }
    println!("{steps} {coins}");
}

Test details

Test 1

Group: 1, 2

Verdict: ACCEPTED

input
`1 R` view save

correct output
`0 0` view save

user output
`0 0` view save

Test 2

Group: 1, 2

Verdict: ACCEPTED

input
`10 ...R......` view save

correct output
`0 0` view save

user output
`0 0` view save

Test 3

Group: 1, 2

Verdict: ACCEPTED

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

correct output
`12 5` view save

user output
`12 5` view save

Test 4

Group: 1, 2

Verdict: WRONG ANSWER

input
`10 *R****` view save

correct output
`0 0` view save

user output
`15 9` view save

Test 5

Group: 1, 2

Verdict: ACCEPTED

input
`1000 R................................` view save

correct output
`947 9` view save

user output
`947 9` view save

Test 6

Group: 1, 2

Verdict: ACCEPTED

input
`1000 .................................` view save

correct output
`886 9` view save

user output
`886 9` view save

Test 7

Group: 1, 2

Verdict: ACCEPTED

input
`1000 .........................` view save

correct output
`1287 400` view save

user output
`1287 400` view save

Test 8

Group: 1, 2

Verdict: WRONG ANSWER

input
`1000 **********.***************...` view save

correct output
`0 0` view save

user output
`1684 900` view save

Test 9

Group: 1, 2

Verdict: WRONG ANSWER

input
`1000 ******************************...` view save

correct output
`0 0` view save

user output
`1684 999` view save

Test 10

Group: 1, 2

Verdict: ACCEPTED

input
`1000 R*****************************...` view save

correct output
`999 999` view save

user output
`999 999` view save

Test 11

Group: 1, 2

Verdict: ACCEPTED

input
`1000 ******************************...` view save

correct output
`999 999` view save

user output
`999 999` view save

Test 12

Group: 2

Verdict: ACCEPTED

input
`10000 .......*...................*...` view save

correct output
`10971 999` view save

user output
`10971 999` view save

Test 13

Group: 2

Verdict: ACCEPTED

input
`10000 ...........................` view save

correct output
`9999 999` view save

user output
`9999 999` view save

Test 14

Group: 2

Verdict: ACCEPTED

input
`10000 ...............*.....` view save

correct output
`18766 5000` view save

user output
`18766 5000` view save

Test 15

Group: 2

Verdict: ACCEPTED

input
`10000 R*****************************...` view save

correct output
`9999 9999` view save

user output
`9999 9999` view save

Test 16

Group: 2

Verdict: ACCEPTED

input
`10000 ******************************...` view save

correct output
`9999 9999` view save

user output
`9999 9999` view save

Test 17

Group: 2

Verdict: ACCEPTED

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

correct output
`0 0` view save

user output
`0 0` view save

Test 18

Group: 2

Verdict: TIME LIMIT EXCEEDED

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

correct output
`299934 10000` view save

user output
(empty)

Test 19

Group: 2

Verdict: TIME LIMIT EXCEEDED

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

correct output
`299998 100000` view save

user output
(empty)

Test 20

Group: 2

Verdict: TIME LIMIT EXCEEDED

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

correct output
`0 0` view save

user output
(empty)

Test 21

Group: 2

Verdict: ACCEPTED

input
`200000 R................................` view save

correct output
`133765 3` view save

user output
`133765 3` view save

Test 22

Group: 2

Verdict: ACCEPTED

input
`200000 R................................` view save

correct output
`199982 5000` view save

user output
`199982 5000` view save

Test 23

Group: 2

Verdict: TIME LIMIT EXCEEDED

input
`200000 R*****************************...` view save

correct output
`199999 199999` view save

user output
(empty)

Test 24

Group: 2

Verdict: TIME LIMIT EXCEEDED

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

correct output
`199999 199999` view save

user output
(empty)

Datatähti 2025 alku

Robotti

Code

Test details

Test 1

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

Tasks

Submissions (onyx)