CSES - Datatähti 2026 alku

Submission details
Task:	Maalaus
Sender:	Jaksu
Submission time:	2025-10-31 02:21:11 +0200
Language:	Rust (2021)
Status:	READY
Result:	10

Feedback
group	verdict	score
#1	ACCEPTED	10
#2	TIME LIMIT EXCEEDED	0
#3	TIME LIMIT EXCEEDED	0
#4	TIME LIMIT EXCEEDED	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.00 s	1, 3, 4	details
#2	ACCEPTED	0.00 s	3, 4	details
#3	ACCEPTED	0.00 s	1, 3, 4	details
#4	TIME LIMIT EXCEEDED	--	2, 4	details
#5	TIME LIMIT EXCEEDED	--	2, 4	details
#6	TIME LIMIT EXCEEDED	--	3, 4	details
#7	TIME LIMIT EXCEEDED	--	3, 4	details
#8	TIME LIMIT EXCEEDED	--	4	details
#9	TIME LIMIT EXCEEDED	--	4	details
#10	ACCEPTED	0.00 s	1, 3, 4	details
#11	ACCEPTED	0.00 s	1, 3, 4	details
#12	TIME LIMIT EXCEEDED	--	2, 4	details
#13	TIME LIMIT EXCEEDED	--	2, 4	details
#14	TIME LIMIT EXCEEDED	--	4	details
#15	TIME LIMIT EXCEEDED	--	4	details
#16	TIME LIMIT EXCEEDED	--	4	details
#17	TIME LIMIT EXCEEDED	--	4	details

Code

use std::io;
use std::collections::{HashSet, HashMap};
 
fn main() {
    let mut input = String::new();
    io::stdin().read_line(&mut input).expect("Failed to read input");
 
    let startdata: Vec<usize> = input.split_ascii_whitespace().map(|e| e.parse::<usize>().unwrap()).collect();
 
    // row- and colhashes hold the amount of rows and columns per color
    let mut rowhash: HashMap<usize, usize> = HashMap::new();
    let mut colhash: HashMap<usize, usize> = HashMap::new();
    let mut colors: Vec<usize> = vec!();

    for _i in 0..startdata[2] {
        colors.push(0);
    }

    let mut instructions: Vec<(usize, usize, bool)> = vec!();
 
    // Kerää ohjeet vektoriin
    for instructionindex in 0..startdata[3] {
        let mut stepinput = String::new();
        io::stdin().read_line(&mut stepinput).expect("Failed to read input");
        let instruction = parse_input(&stepinput);
        instructions.push(instruction);

        if instructionindex%2000 == 1999 || instructionindex == startdata[3]-1 {
            let mut instructionsvec = instructions.into_iter().rev().collect::<Vec<(usize, usize, bool)>>();
            dedup(&mut instructionsvec);
            let instructionlist = instructionsvec.into_iter().rev().collect::<Vec<(usize, usize, bool)>>();
        
            for instruction in instructionlist {
                if instruction.2 {
                    match rowhash.get_mut(&instruction.1) {
                        Some(s) => {*s += 1;},
                        None => {rowhash.insert(instruction.1, 1);},
                    }
                    colors[instruction.1] += startdata[1];
                    for col in &colhash {
                        colors[*col.0] -= col.1;
                    }
                } else {
                    match colhash.get_mut(&instruction.1) {
                        Some(s) => {*s += 1;},
                        None => {colhash.insert(instruction.1, 1);},
                    }
                    colors[instruction.1] += startdata[0];
                    for row in &rowhash {
                        colors[*row.0] -= row.1;
                    }
                }
                dbg!(&instruction);
                dbg!(&rowhash);
                dbg!(&colhash);
                dbg!(&colors);
            }
            instructions = vec!();
        }
    }
 
    // Poistaa duplikaatit alkaen vasemmalta
    for color in colors {
        println!("{}", color);
    }
}
 
pub fn parse_input(input: &String) -> (usize, usize, bool) {
    let datavector: Vec<&str> = input.split_ascii_whitespace().collect();
    let command = match datavector[0] {
        "R" => true,
        "C" => false,
        _ => false,
    };
 
    let index = datavector[1].parse::<usize>().unwrap();
    let color = datavector[2].parse::<usize>().unwrap();
 
    return (index-1, color-1, command);
}
 
fn dedup(v: &mut Vec<(usize, usize, bool)>) {
    let mut set = HashSet::new();
    v.retain(|x| set.insert((x.0, x.2)));
}

Test details

Test 1 (public)

Group: 1, 3, 4

Verdict: ACCEPTED

input
`3 4 4 4 R 1 1 C 3 4 R 2 2 R 1 1` view save

correct output
`4 4 0 1` view save

user output
`4 4 0 1` view save

Error:

[input/code.rs:53] &instruction = (
    2,
    3,
    false,
)
[input/code.rs:54] &rowhash = {}
[input/code.rs:55] &colhash = {
    3: 1,
}
[input/code.rs:56] &colors = [
    0,
    0,
    0,
    3,
]
[input/code.rs:53] &instruction = (
    1,
    1,
    true,
)
[input/code.rs:54] &rowhash = {
    1: 1,
}
[input/code.rs:55] &colhash = {
    3: 1,
}
[input/code.rs:56] &colors = [
    0,
    4,
    0,
    2,
]
[input/code.rs:53] &instruction = (
    0,
    0,
    true,
)
[input/code.rs:54] &rowhash = {
    0: 1,
    1: 1,
}
[input/code.rs:55] &colhash = {
    3: 1,
}
[input/code.rs:56] &colors = [
    4,
    4,
    0,
    1,
]

Test 2 (public)

Group: 3, 4

Verdict: ACCEPTED

input
`1000000000 1000000000 5 10 C 70724881 4 C 290904744 1 C 569311326 5 R 896293092 1 ...` view save

correct output
`3999999991 1999999998 19999999...` view save

user output
`3999999991 1999999998 1999999999 999999994 999999994` view save

Error:

[input/code.rs:53] &instruction = (
    70724880,
    3,
    false,
)
[input/code.rs:54] &rowhash = {}
[input/code.rs:55] &colhash = {
    3: 1,
}
[input/code.rs:56] &colors = [
    0,
    0,
    0,
    1000000000,
    0,
]
[input/code.rs:53] &instruction = (
    290904743,
    0,
    false,
)
[input/code.rs:54] &rowhash = {}
[input/code.rs:55] &colhash = {
    3: 1,
    0: 1,
}
[input/code.rs:56] &colors = [
    1000000000,
    0,
    0,
    1000000000,
    0,
]
[input/code.rs:53] &instruction = (
    569311325,
    4,
    false,
)
[input/code.rs:54] &rowhash = {}
[input/code.rs:55] &colhash = {
    4: 1,
    3: 1,
    0: 1,
}
[input/code.rs:56] &colors = [
    1000000000,
    0,
    0,
    1000000000,
    1000000000,
]
[input/code.rs:53] &instruction = (
    896293091,
    0,
    true,
)
[input/code.rs:54] &rowhash = {
    0: 1,
}
[input/code.rs:55] &colhash = {
    4: 1,
    3: 1,
    0: 1,
}
[input/code.rs:56] &colors = [
    1999999999,
    0,
    0,
    999999999,
    999999999,...

Test 3

Group: 1, 3, 4

Verdict: ACCEPTED

input
`10 10 10 10 R 10 8 C 1 2 R 10 2 R 1 4 ...` view save

correct output
`0 13 0 8 7 20 0 0 10 7` view save

user output
`0 13 0 8 7 ...` view save

Error:

[input/code.rs:53] &instruction = (
    0,
    1,
    false,
)
[input/code.rs:54] &rowhash = {}
[input/code.rs:55] &colhash = {
    1: 1,
}
[input/code.rs:56] &colors = [
    0,
    10,
    0,
    0,
    0,
    0,
    0,
    0,
    0,
    0,
]
[input/code.rs:53] &instruction = (
    9,
    1,
    true,
)
[input/code.rs:54] &rowhash = {
    1: 1,
}
[input/code.rs:55] &colhash = {
    1: 1,
}
[input/code.rs:56] &colors = [
    0,
    19,
    0,
    0,
    0,
    0,
    0,
    0,
    0,
    0,
]
[input/code.rs:53] &instruction = (
    3,
    3,
    true,
)
[input/code.rs:54] &rowhash = {
    3: 1,
    1: 1,
}
[input/code.rs:55] &colhash = {
    1: 1,
}
[input/code.rs:56] &colors = [
    0,
    18,
    0,
    10,
    0,
    0,
    0,
    0,
    0,
    0,
]
[input/code.rs:53] &instruction = (
    3,
    9,
    false,
)
[input/code.rs:54] &rowhash = {
    3: 1,
    1: 1,
}
[input/code.rs:55] &colhash = {
    9: 1,
    1: 1,
}
[input/code.rs:56] &colors = [
    0,
    17,
    0,
    9,
    0,...

Test 4

Group: 2, 4

Verdict: TIME LIMIT EXCEEDED

input
`1000000000 1000000000 1 200000 R 185082082 1 C 549662476 1 R 484749097 1 R 330334821 1 ...` view save

correct output
`199984000629575` view save

user output
(empty)

Test 5

Group: 2, 4

Verdict: TIME LIMIT EXCEEDED

input
`1000000000 1000000000 1 200000 C 354072394 1 C 221236382 1 C 63527838 1 C 538599654 1 ...` view save

correct output
`126261014543986` view save

user output
(empty)

Test 6

Group: 3, 4

Verdict: TIME LIMIT EXCEEDED

input
`1000000000 1000000000 2000 200...` view save

correct output
`999999400 2999997760 999999118...` view save

user output
(empty)

Test 7

Group: 3, 4

Verdict: TIME LIMIT EXCEEDED

input
`1000000000 1000000000 2000 200...` view save

correct output
`999999481 0 999999445 0 0 0 0 ...` view save

user output
(empty)

Test 8

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
`1000000000 1000000000 200000 2...` view save

correct output
`0 0 999997829 0 1999872519 199...` view save

user output
(empty)

Test 9

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
`1000000000 1000000000 200000 2...` view save

correct output
`999986843 0 0 999966411 999971...` view save

user output
(empty)

Test 10

Group: 1, 3, 4

Verdict: ACCEPTED

input
`1 10 10 10 C 1 10 R 1 4 C 9 3 R 1 7 ...` view save

correct output
`1 0 0 0 0 0 0 9 0 0` view save

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

Error:

[input/code.rs:53] &instruction = (
    0,
    9,
    false,
)
[input/code.rs:54] &rowhash = {}
[input/code.rs:55] &colhash = {
    9: 1,
}
[input/code.rs:56] &colors = [
    0,
    0,
    0,
    0,
    0,
    0,
    0,
    0,
    0,
    1,
]
[input/code.rs:53] &instruction = (
    8,
    2,
    false,
)
[input/code.rs:54] &rowhash = {}
[input/code.rs:55] &colhash = {
    9: 1,
    2: 1,
}
[input/code.rs:56] &colors = [
    0,
    0,
    1,
    0,
    0,
    0,
    0,
    0,
    0,
    1,
]
[input/code.rs:53] &instruction = (
    0,
    7,
    true,
)
[input/code.rs:54] &rowhash = {
    7: 1,
}
[input/code.rs:55] &colhash = {
    9: 1,
    2: 1,
}
[input/code.rs:56] &colors = [
    0,
    0,
    0,
    0,
    0,
    0,
    0,
    10,
    0,
    0,
]
[input/code.rs:53] &instruction = (
    4,
    7,
    false,
)
[input/code.rs:54] &rowhash = {
    7: 1,
}
[input/code.rs:55] &colhash = {
    9: 1,
    7: 1,
    2: 1,
}
[input/code.rs:56] &colors = [
    0,
    0,
    0,
    0,
    0,...

Test 11

Group: 1, 3, 4

Verdict: ACCEPTED

input
`10 1 10 10 R 4 6 R 5 1 R 4 2 R 3 9 ...` view save

correct output
`0 0 0 0 0 0 0 10 0 0` view save

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

Error:

[input/code.rs:53] &instruction = (
    3,
    1,
    true,
)
[input/code.rs:54] &rowhash = {
    1: 1,
}
[input/code.rs:55] &colhash = {}
[input/code.rs:56] &colors = [
    0,
    1,
    0,
    0,
    0,
    0,
    0,
    0,
    0,
    0,
]
[input/code.rs:53] &instruction = (
    2,
    8,
    true,
)
[input/code.rs:54] &rowhash = {
    8: 1,
    1: 1,
}
[input/code.rs:55] &colhash = {}
[input/code.rs:56] &colors = [
    0,
    1,
    0,
    0,
    0,
    0,
    0,
    0,
    1,
    0,
]
[input/code.rs:53] &instruction = (
    1,
    2,
    true,
)
[input/code.rs:54] &rowhash = {
    8: 1,
    2: 1,
    1: 1,
}
[input/code.rs:55] &colhash = {}
[input/code.rs:56] &colors = [
    0,
    1,
    1,
    0,
    0,
    0,
    0,
    0,
    1,
    0,
]
[input/code.rs:53] &instruction = (
    0,
    3,
    true,
)
[input/code.rs:54] &rowhash = {
    2: 1,
    3: 1,
    1: 1,
    8: 1,
}
[input/code.rs:55] &colhash = {}
[input/code.rs:56] &colors = [
    0,
    1,
    1,
    1,
    0,
    0,...

Test 12

Group: 2, 4

Verdict: TIME LIMIT EXCEEDED

input
`1 1000000000 1 200000 C 298761159 1 R 1 1 C 831911362 1 C 25171734 1 ...` view save

correct output
`1000000000` view save

user output
(empty)

Test 13

Group: 2, 4

Verdict: TIME LIMIT EXCEEDED

input
`1000000000 1 1 200000 R 68306849 1 C 1 1 C 1 1 R 485427101 1 ...` view save

correct output
`1000000000` view save

user output
(empty)

Test 14

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
`1000000000 1000000000 100 2000...` view save

correct output
`2003899199298 2016897879262 20...` view save

user output
(empty)

Test 15

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
`1000000000 1000000000 100 2000...` view save

correct output
`1267960483393 1326958437362 12...` view save

user output
(empty)

Test 16

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
`1000000000 1000000000 10000 20...` view save

correct output
`26998778013 13999380552 239989...` view save

user output
(empty)

Test 17

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
`1000000000 1000000000 10000 20...` view save

correct output
`7999699356 8999760379 12999665...` view save

user output
(empty)

Datatähti 2026 alku

Maalaus

Code

Test details

Test 1 (public)

Test 2 (public)

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

Tasks

Submissions (Jaksu)