CSES - Datatähti 2024 alku - Results
Submission details
Task:Uolevin kalansaalis
Sender:ToukoP
Submission time:2023-11-05 21:20:31 +0200
Language:Rust
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
Test results
testverdicttimegroup
#10.01 s1, 2details
#20.01 s1, 2details
#30.01 s1, 2details
#40.01 s1, 2details
#50.01 s1, 2details
#60.01 s1, 2details
#70.01 s1, 2details
#80.01 s1, 2details
#90.01 s1, 2details
#100.01 s1, 2details
#110.01 s1, 2details
#120.01 s1, 2details
#130.01 s1, 2details
#140.01 s1, 2details
#150.01 s1, 2details
#160.76 s2details
#170.76 s2details
#180.78 s2details
#190.74 s2details
#200.76 s2details
#210.75 s2details
#220.75 s2details
#230.74 s2details
#240.75 s2details

Code

use std::io::*;

const MAX_SIZE: usize = 600;

fn calc_limits(n: usize, m: usize, x: usize, y: usize, is_down: bool) -> usize {
    let left = if x % 2 == 1 { y * 2 - 1 } else { y * 2 };
    let right = if x % 2 == 0 {
        (m - y + 1) * 2 - 1
    } else {
        (m - y + 1) * 2
    };

    if is_down { n - x + 1 } else { x }.min(left).min(right)
}

#[cfg(feature = "print")]
fn print_buf(n: usize, m: usize, buf: &[[i32; MAX_SIZE]; MAX_SIZE]) {
    for x in 1..(n + 1) {
        if x % 2 == 0 {
            #[cfg(feature = "print")]
            print!("  |");
        } else {
            #[cfg(feature = "print")]
            print!("|");
        };
        for y in 1..(m + 1) {
            print!(" {: >3} |", buf[x][y]);
        }
        println!("");
    }
}

fn get_highscore(n: usize, m: usize, catch: &[[i32; MAX_SIZE]; MAX_SIZE], is_down: bool) -> i32 {
    let mut buf1 = [[0; MAX_SIZE]; MAX_SIZE];
    let mut buf2 = catch.clone();
    let mut buf3 = [[0; MAX_SIZE]; MAX_SIZE];

    let mut write = &mut buf1;
    let mut current = &mut buf2;
    let mut prev = &mut buf3;

    let mut highscore = catch[1][1];

    for i in 2..(n + 1) {
        #[cfg(feature = "print")]
        {
            println!("Size: {i}, current highscore: {highscore}");
            println!("Current:");
            print_buf(n, m, current);
            println!("Previous:");
            print_buf(n, m, prev);
            println!("");
        }

        for x in 1..(n + 1) {
            let offset = if x % 2 == 0 {
                #[cfg(feature = "print")]
                print!("  |");
                1
            } else {
                #[cfg(feature = "print")]
                print!("|");
                0
            };

            for y in 1..(m + 1) {
                let limit = calc_limits(n, m, x, y, is_down);
                if limit < i {
                    write[x][y] = 0;
                    #[cfg(feature = "print")]
                    print!(" --- |",);
                    continue;
                }

                let score = if is_down {
                    catch[x][y] + current[x + 1][y + offset - 1] + current[x + 1][y + offset]
                        - prev[x + 2][y]
                } else {
                    catch[x][y] + current[x - 1][y + offset - 1] + current[x - 1][y + offset]
                        - prev[x - 2][y]
                };
                write[x][y] = score;

                #[cfg(feature = "print")]
                print!(" {: >3} |", score);

                if score < highscore {
                    highscore = score;
                }
            }
            #[cfg(feature = "print")]
            println!("");
        }
        let swap = prev;
        prev = current;
        current = write;
        write = swap;

        #[cfg(feature = "print")]
        println!("\n");
    }

    highscore
}

fn main() -> Result<()> {
    let mut input = String::new();
    stdin().read_line(&mut input)?;
    let mut split = input.split(" ");

    let n: usize = split.next().unwrap().trim().parse().unwrap();
    let m: usize = split.next().unwrap().trim().parse().unwrap();
    let k: usize = split.next().unwrap().trim().parse().unwrap();

    let mut catch = [[0; MAX_SIZE]; MAX_SIZE];

    let mut total_score = 0;
    let mut highscore = if k >= m * n { i32::MAX } else { 0 };

    for _ in 0..k {
        let mut input = String::new();
        stdin().read_line(&mut input)?;
        let mut split = input.split(" ");

        let x: usize = split.next().unwrap().trim().parse().unwrap();
        let y: usize = split.next().unwrap().trim().parse().unwrap();
        let score: i32 = match split.next().unwrap().trim() {
            "K" => -10,
            "H" => 1,
            _ => 0,
        };
        total_score += score;
        catch[x][y] = score;
        if score < highscore {
            highscore = score;
        }
    }

    println!("Single cell highscore: {}", highscore);

    let highscore = highscore
        .min(get_highscore(n, m, &catch, true))
        .min(get_highscore(n, m, &catch, false));

    #[cfg(feature = "print")]
    println!("Total score: {}, Highscore: {}", total_score, highscore);

    println!("{}", total_score - highscore);

    Ok(())
}

Test details

Test 1

Group: 1, 2

Verdict:

input
5 6 13
1 1 K
5 1 K
2 2 H
4 2 H
...

correct output
-16

user output
Single cell highscore: -10
-16

Test 2

Group: 1, 2

Verdict:

input
5 6 7
1 5 K
4 6 K
2 4 H
2 5 H
...

correct output
0

user output
Single cell highscore: -10
0

Test 3

Group: 1, 2

Verdict:

input
5 6 7
5 5 K
2 6 K
2 4 H
2 5 H
...

correct output
0

user output
Single cell highscore: -10
0

Test 4

Group: 1, 2

Verdict:

input
10 10 51
3 3 H
6 3 H
9 5 H
5 10 H
...

correct output
50

user output
Single cell highscore: -10
50

Test 5

Group: 1, 2

Verdict:

input
10 10 52
3 5 H
3 1 H
9 6 H
2 8 H
...

correct output
40

user output
Single cell highscore: -10
40

Test 6

Group: 1, 2

Verdict:

input
10 10 60
6 10 H
2 8 H
5 8 H
8 10 H
...

correct output
-15

user output
Single cell highscore: -10
-15

Test 7

Group: 1, 2

Verdict:

input
10 10 60
4 7 H
7 4 H
4 10 H
3 6 H
...

correct output
60

user output
Single cell highscore: 0
60

Test 8

Group: 1, 2

Verdict:

input
10 10 40
9 9 H
5 10 H
5 6 H
4 9 H
...

correct output
2

user output
Single cell highscore: -10
2

Test 9

Group: 1, 2

Verdict:

input
1 1 0

correct output
0

user output
Single cell highscore: 0
0

Test 10

Group: 1, 2

Verdict:

input
1 1 1
1 1 K

correct output
0

user output
Single cell highscore: -10
0

Test 11

Group: 1, 2

Verdict:

input
1 1 1
1 1 H

correct output
0

user output
Single cell highscore: 1
0

Test 12

Group: 1, 2

Verdict:

input
10 5 32
10 3 H
4 4 H
3 3 H
5 4 H
...

correct output
20

user output
Single cell highscore: -10
20

Test 13

Group: 1, 2

Verdict:

input
5 10 32
5 9 H
2 4 H
2 9 H
2 5 H
...

correct output
28

user output
Single cell highscore: -10
28

Test 14

Group: 1, 2

Verdict:

input
10 10 100
2 9 H
5 4 H
5 9 K
6 1 K
...

correct output
-439

user output
Single cell highscore: -10
-439

Test 15

Group: 1, 2

Verdict:

input
10 10 100
8 9 H
5 10 H
5 4 H
3 9 H
...

correct output
88

user output
Single cell highscore: -10
88

Test 16

Group: 2

Verdict:

input
500 500 125000
125 261 K
84 78 K
11 200 K
481 246 K
...

correct output
-624270

user output
Single cell highscore: -10
-624270

Test 17

Group: 2

Verdict:

input
500 500 125100
16 61 H
37 62 H
459 125 H
318 476 H
...

correct output
124020

user output
Single cell highscore: -10
124020

Test 18

Group: 2

Verdict:

input
500 500 249999
22 214 H
356 145 H
341 29 H
393 262 H
...

correct output
249999

user output
Single cell highscore: 0
249999

Test 19

Group: 2

Verdict:

input
500 500 32000
30 81 H
315 34 H
78 112 H
367 166 H
...

correct output
10126

user output
Single cell highscore: -10
10126

Test 20

Group: 2

Verdict:

input
500 500 126745
164 390 H
126 331 H
164 126 H
55 92 H
...

correct output
-104692

user output
Single cell highscore: -10
-104692

Test 21

Group: 2

Verdict:

input
500 500 71200
106 191 H
314 189 H
482 485 H
344 401 H
...

correct output
-335853

user output
Single cell highscore: -10
-335853

Test 22

Group: 2

Verdict:

input
500 500 67772
421 277 H
428 470 H
169 142 H
256 345 H
...

correct output
-208567

user output
Single cell highscore: -10
-208567

Test 23

Group: 2

Verdict:

input
500 500 27434
366 481 H
38 22 H
126 107 H
135 169 H
...

correct output
-57100

user output
Single cell highscore: -10
-57100

Test 24

Group: 2

Verdict:

input
500 500 93982
183 13 H
463 230 H
264 351 H
399 290 H
...

correct output
-52800

user output
Single cell highscore: -10
-52800