CSES - Datatähti 2025 alku - Results
Submission details
Task:Kortit I
Sender:wolruso
Submission time:2024-11-09 13:01:35 +0200
Language:Rust (2021)
Status:READY
Result:27
Feedback
groupverdictscore
#1ACCEPTED12
#2ACCEPTED15
#30
Test results
testverdicttimegroup
#1ACCEPTED0.00 s1, 2, 3details
#2ACCEPTED0.78 s2, 3details
#3--3details
#4--3details
#5--3details
#6--3details
#7--3details
#8--3details
#9--3details
#10--3details
#11--3details
#12--3details
#13--3details
#14--3details
#15--3details
#16--3details
#17--3details
#18--3details
#19--3details
#20--3details

Compiler report

warning: variable does not need to be mutable
 --> input/code.rs:5:5
  |
5 |     mut cpoints_p1: usize,
  |     ----^^^^^^^^^^
  |     |
  |     help: remove this `mut`
  |
  = note: `#[warn(unused_mut)]` on by default

warning: variable does not need to be mutable
 --> input/code.rs:6:5
  |
6 |     mut cpoints_p2: usize,
  |     ----^^^^^^^^^^
  |     |
  |     help: remove this `mut`

warning: 2 warnings emitted

Code

fn recur(
    cards_p2: Vec<usize>,
    cards_added_p2: Vec<usize>,
    c1: usize,
    mut cpoints_p1: usize,
    mut cpoints_p2: usize,
    points_p1: usize,
    points_p2: usize,
) -> Option<Vec<usize>> {
    if c1 == 0 {
        if cpoints_p1 == points_p1 && cpoints_p2 == points_p2 {
            return Some(cards_added_p2);
        } else {
            return None;
        }
    }
    for (index, c2) in cards_p2.iter().enumerate() {
        let (mut cpoints_p1_this_iter, mut cpoints_p2_this_iter) = (cpoints_p1, cpoints_p2);
        if c1 > *c2 {
            cpoints_p1_this_iter += 1;
        } else if *c2 > c1 {
            cpoints_p2_this_iter += 1;
        }
        let mut cp2 = cards_p2.clone();
        cp2.remove(index);
        let mut ca = cards_added_p2.clone();
        ca.push(*c2);
        let r = recur(
            cp2,
            ca,
            c1 - 1,
            cpoints_p1_this_iter,
            cpoints_p2_this_iter,
            points_p1,
            points_p2,
        );
        if r.is_some() {
            return r;
        }
    }
    None
}

pub fn guaranteed_method(
    num_cards: usize,
    num_points_p1: usize,
    num_points_p2: usize,
) -> Option<(Vec<usize>, Vec<usize>)> {
    let mut cards_p1 = Vec::new();
    let mut cards_p2 = Vec::new();
    for i in (1..=num_cards).rev() {
        cards_p2.push(i);
        cards_p1.push(i);
    }
    match recur(
        cards_p2,
        Vec::new(),
        num_cards,
        0,
        0,
        num_points_p1,
        num_points_p2,
    ) {
        None => None,
        Some(cp2) => Some((cards_p1, cp2)),
    }
}

use std::io::stdin;

struct TestInfo {
    num_cards: usize,
    p1_points: usize,
    p2_points: usize,
}

fn main() {
    let mut l = String::new();
    stdin().read_line(&mut l).unwrap();
    let num_tests: usize = l.trim().parse().unwrap();
    let mut tests: Vec<TestInfo> = Vec::with_capacity(num_tests);
    for _ in 0..num_tests {
        let mut tl = String::new();
        stdin().read_line(&mut tl).unwrap();
        let mut nums = tl.trim().split(' ');
        let c: usize = nums.next().unwrap().parse().unwrap();
        let p1: usize = nums.next().unwrap().parse().unwrap();
        let p2: usize = nums.next().unwrap().parse().unwrap();
        tests.push(TestInfo {
            num_cards: c,
            p1_points: p1,
            p2_points: p2,
        });
    }
    for i in 0..num_tests {
        let t = &tests[i];
        let answer_tmp = guaranteed_method(t.num_cards, t.p1_points, t.p2_points);
        let answer = match answer_tmp {
            None => {
                println!("NO");
                continue;
            }
            Some(a) => {
                println!("YES");
                a
            }
        };
        let p1_cards = answer
            .0
            .into_iter()
            .map(|c| c.to_string())
            .collect::<Vec<String>>()
            .join(" ");
        let p2_cards = answer
            .1
            .into_iter()
            .map(|c| c.to_string())
            .collect::<Vec<String>>()
            .join(" ");
        println!("{}", p1_cards);
        println!("{}", p2_cards);
    }
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
54
4 4 0
3 1 3
3 2 2
4 0 4
...

correct output
NO
NO
NO
NO
NO
...

user output
NO
NO
NO
NO
NO
...

Test 2

Group: 2, 3

Verdict: ACCEPTED

input
284
6 1 0
5 0 2
7 1 5
7 7 5
...

correct output
NO
NO
YES
1 2 3 4 5 6 7 
2 3 4 5 6 1 7 
...

user output
NO
NO
YES
7 6 5 4 3 2 1
7 1 6 5 4 3 2
...

Test 3

Group: 3

Verdict:

input
955
14 2 10
12 2 5
10 4 9
14 1 13
...

correct output
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 4

Group: 3

Verdict:

input
869
17 12 9
16 8 4
15 9 9
17 11 15
...

correct output
NO
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 5

Group: 3

Verdict:

input
761
18 3 15
19 1 15
18 8 1
19 19 17
...

correct output
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 6

Group: 3

Verdict:

input
925
21 14 21
20 18 18
20 7 6
21 14 9
...

correct output
NO
NO
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 7

Group: 3

Verdict:

input
529
22 3 3
22 17 5
22 6 15
22 22 20
...

correct output
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 8

Group: 3

Verdict:

input
576
23 18 9
23 16 8
23 16 13
23 16 22
...

correct output
NO
NO
NO
NO
NO
...

user output
(empty)

Test 9

Group: 3

Verdict:

input
625
24 2 22
24 15 21
24 6 3
24 21 1
...

correct output
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 10

Group: 3

Verdict:

input
676
25 16 25
25 15 2
25 15 7
25 15 16
...

correct output
NO
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 11

Group: 3

Verdict:

input
729
26 2 18
26 14 18
26 5 18
26 19 13
...

correct output
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 12

Group: 3

Verdict:

input
784
27 26 7
27 14 0
27 14 5
27 14 14
...

correct output
NO
NO
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 13

Group: 3

Verdict:

input
841
28 26 16
28 13 19
28 5 8
28 26 4
...

correct output
NO
NO
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 14

Group: 3

Verdict:

input
900
29 24 15
29 13 2
29 13 7
29 13 16
...

correct output
NO
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 15

Group: 3

Verdict:

input
961
30 24 26
30 12 24
30 4 29
30 24 14
...

correct output
NO
NO
NO
NO
YES
...

user output
(empty)

Test 16

Group: 3

Verdict:

input
1000
15 12 6
33 18 30
44 4 26
6 6 5
...

correct output
NO
NO
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 17

Group: 3

Verdict:

input
1000
45 32 30
4 0 3
46 23 10
71 19 46
...

correct output
NO
NO
YES
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 18

Group: 3

Verdict:

input
1000
51 29 37
75 11 72
5 2 4
31 8 26
...

correct output
NO
NO
NO
NO
YES
...

user output
(empty)

Test 19

Group: 3

Verdict:

input
1000
50 20 37
99 45 58
86 79 73
85 70 54
...

correct output
NO
NO
NO
NO
NO
...

user output
(empty)

Test 20

Group: 3

Verdict:

input
1000
26 23 5
73 53 59
64 47 41
80 75 55
...

correct output
NO
NO
NO
NO
NO
...

user output
(empty)