CSES - Datatähti 2021 loppu - Results
Submission details
Task:Koodarit
Sender:antti_p
Submission time:2021-01-23 19:53:53 +0200
Language:Rust
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1, 2, 3details
#2ACCEPTED0.01 s1, 2, 3details
#30.01 s1, 2, 3details
#4ACCEPTED0.01 s1, 2, 3details
#5ACCEPTED0.01 s1, 2, 3details
#6ACCEPTED0.01 s1, 2, 3details
#70.01 s1, 2, 3details
#8ACCEPTED0.01 s1, 2, 3details
#90.01 s1, 2, 3details
#100.01 s1, 2, 3details
#11ACCEPTED0.01 s1, 2, 3details
#120.01 s1, 3details
#130.01 s1, 3details
#140.01 s1, 3details
#15ACCEPTED0.01 s1, 3details
#160.01 s1, 3details
#17--2, 3details
#18--2, 3details
#19--2, 3details
#20--2, 3details
#21--2, 3details
#22--2, 3details
#23--2, 3details
#24--3details
#25ACCEPTED0.28 s3details
#26--3details
#27--3details
#28--3details
#29--3details
#30--3details
#31--3details

Code

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

fn main() {
    let stdin = io::stdin();
    let mut lines = stdin.lock().lines();
    let pair_c = lines.next().unwrap().unwrap().split_whitespace().skip(1).next().unwrap().parse::<usize>().unwrap();
    let mut data : Vec<_>= lines.next().unwrap().unwrap().split_whitespace().map(|x| x.parse::<usize>().unwrap()).collect();
    data.sort();
    let mut cost = 0u128;
    let mut pc = 0;
    while pc < pair_c {
        let mut b_i = 0;
        let mut b_i_v = usize::MAX;
        for i in 1..data.len() {
            let d = data[i] - data[i - 1];
            if d <= b_i_v {
                b_i = i - 1;
                b_i_v = d;
            }
        }
        cost+= b_i_v as u128;
        pc+= 1;
        data.drain(b_i..(b_i + 2));
    }
    println!("{}", cost);
    /*
    let mut new_data = Vec::new();
    let mut pairs = Vec::new();
    new_data.push(Some(data[0]));
    for i in 1..data.len() {
        pairs.push((i - 1, data[i] - data[i - 1]));
        new_data.push(Some(data[i]));
    }
    pairs.sort_by_key(|(_, c)| *c);
    pairs.reverse();
    let mut cost = 0u128;
    let mut pc = 0;
    let mut best_new_one 
    loop {
        println!("Iterating with new_data = {:?} and pairs = {:?}", new_data, pairs);
        while let Some((i, c)) = pairs.pop() {
            if new_data[i].is_some() && new_data[i + 1].is_some() {
                new_data[i] = None;
                new_data[i + 1] = None;
                cost+= c as u128;
                pc+= 1;
                if pc >= pair_c {
                    println!("{}", cost);
                    return;
                }
                if i > 0 {
                    
                }
            }
            if pc >= pair_c {
                println!("{}", cost);
                return;
            }
        }
        new_data.retain(|x| x.is_some());
        pairs = vec![];
        for i in 1..new_data.len() {
            pairs.push((i - 1, data[i + 1] - data[i]));
        }
        pairs.sort_by_key(|(_, c)| *c);
        pairs.reverse();
    }
    */
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
8 3
3 1 2 7 9 3 4 7

correct output
1

user output
1

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
2 1
2 13

correct output
11

user output
11

Test 3

Group: 1, 2, 3

Verdict:

input
20 10
16 20 6 15 19 12 11 17 20 6 15...

correct output
6

user output
8

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

input
14 5
11 3 8 3 14 8 10 13 11 10 17 1...

correct output
0

user output
0

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

input
15 1
8 5 1 8 18 15 6 20 14 9 10 9 1...

correct output
0

user output
0

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

input
10 3
10 19 16 15 12 5 14 8 3 15

correct output
4

user output
4

Test 7

Group: 1, 2, 3

Verdict:

input
202 90
177 187 183 647 616 580 499 78...

correct output
213

user output
227

Test 8

Group: 1, 2, 3

Verdict: ACCEPTED

input
2000 512
141 583 135 833 900 308 248 58...

correct output
0

user output
0

Test 9

Group: 1, 2, 3

Verdict:

input
2000 972
685 4 289 865 93 159 48 866 56...

correct output
276

user output
297

Test 10

Group: 1, 2, 3

Verdict:

input
2000 1000
698 153 298 118 631 341 238 7 ...

correct output
517

user output
1435

Test 11

Group: 1, 2, 3

Verdict: ACCEPTED

input
2000 1
983 144 449 584 839 166 77 885...

correct output
0

user output
0

Test 12

Group: 1, 3

Verdict:

input
1464 320
846762124 954854396 12767390 7...

correct output
35809369

user output
36011250

Test 13

Group: 1, 3

Verdict:

input
2000 231
801945178 924940258 369188694 ...

correct output
7831421

user output
7836658

Test 14

Group: 1, 3

Verdict:

input
2000 461
464790475 932031556 838378103 ...

correct output
37272564

user output
37531269

Test 15

Group: 1, 3

Verdict: ACCEPTED

input
2000 100
484046702 267135814 995006323 ...

correct output
1268400

user output
1268400

Test 16

Group: 1, 3

Verdict:

input
2000 996
98352148 438929491 242618159 1...

correct output
445965905

user output
772650123

Test 17

Group: 2, 3

Verdict:

input
65879 19675
896 316 972 476 636 227 716 78...

correct output
0

user output
(empty)

Test 18

Group: 2, 3

Verdict:

input
200000 53820
995 720 135 767 943 742 191 26...

correct output
0

user output
(empty)

Test 19

Group: 2, 3

Verdict:

input
200000 32297
527 947 84 851 908 833 339 112...

correct output
0

user output
(empty)

Test 20

Group: 2, 3

Verdict:

input
200000 99982
561 174 242 275 460 109 664 68...

correct output
322

user output
(empty)

Test 21

Group: 2, 3

Verdict:

input
200000 99955
911 33 314 861 298 117 972 982...

correct output
245

user output
(empty)

Test 22

Group: 2, 3

Verdict:

input
200000 99972
783 1000 673 611 87 452 702 92...

correct output
290

user output
(empty)

Test 23

Group: 2, 3

Verdict:

input
200000 99961
795 136 128 643 60 422 371 839...

correct output
252

user output
(empty)

Test 24

Group: 3

Verdict:

input
195426 76599
442872072 619088799 118541378 ...

correct output
143376538

user output
(empty)

Test 25

Group: 3

Verdict: ACCEPTED

input
200000 1661
894106972 620084612 931442312 ...

correct output
33089

user output
33089

Test 26

Group: 3

Verdict:

input
200000 86032
211444153 846442677 297198384 ...

correct output
196001810

user output
(empty)

Test 27

Group: 3

Verdict:

input
200000 28275
28280312 349705372 96535649 84...

correct output
11627219

user output
(empty)

Test 28

Group: 3

Verdict:

input
200000 81473
178022892 112774306 250584651 ...

correct output
162430841

user output
(empty)

Test 29

Group: 3

Verdict:

input
200000 99987
297598052 494409138 182268523 ...

correct output
489497036

user output
(empty)

Test 30

Group: 3

Verdict:

input
200000 99971
316462272 843156468 434342923 ...

correct output
483167476

user output
(empty)

Test 31

Group: 3

Verdict:

input
200000 99964
811543559 465033274 620180191 ...

correct output
481497328

user output
(empty)