CSES - Datatähti 2021 loppu - Results
Submission details
Task:Koodarit
Sender:Mahtimursu
Submission time:2021-01-23 17:50:13 +0200
Language:C++ (C++11)
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1, 2, 3details
#2ACCEPTED0.01 s1, 2, 3details
#3ACCEPTED0.01 s1, 2, 3details
#4ACCEPTED0.01 s1, 2, 3details
#5ACCEPTED0.01 s1, 2, 3details
#6ACCEPTED0.01 s1, 2, 3details
#70.01 s1, 2, 3details
#8ACCEPTED0.32 s1, 2, 3details
#90.32 s1, 2, 3details
#100.32 s1, 2, 3details
#11ACCEPTED0.32 s1, 2, 3details
#120.14 s1, 3details
#130.25 s1, 3details
#140.25 s1, 3details
#15ACCEPTED0.25 s1, 3details
#160.25 s1, 3details
#170.54 s2, 3details
#180.57 s2, 3details
#190.56 s2, 3details
#200.58 s2, 3details
#210.56 s2, 3details
#220.58 s2, 3details
#230.58 s2, 3details
#240.59 s3details
#250.60 s3details
#260.60 s3details
#270.59 s3details
#280.58 s3details
#290.58 s3details
#300.58 s3details
#310.57 s3details

Code

#include <bits/stdc++.h>

typedef long long ll;

#define M 1000000007
#define N (1 << 18)

using namespace std;

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	int n, k;
	cin >> n >> k;
    vector<ll> v(n);
	for (int i = 0; i < n; ++i) {
        cin >> v[i];
	}

    ll ans = 0;

    vector<pair<ll, pair<int, int>>> dst;

    sort(v.begin(), v.end());

    /*for (int i = 0; i < n; ++i) {
        if (i != 0) {
            ll d = abs(v[i] - v[i - 1]);
            dst.push_back({ d, {i, i - 1}});
        }
        if (i != n - 1) {
            ll d = abs(v[i] - v[i + 1]);
            dst.push_back({ d, {i, i + 1}});
        }
    }*/

    for (int i = 0; i < n; ++i) {
        for (int j = i + 1; j < n; ++j) {
            ll d = abs(v[i] - v[j]);
            dst.push_back({d, {i, j}});
        }
    }

    sort(dst.begin(), dst.end());

    bool used[200001];

    for (auto p : dst) {
        ll c = p.first;
        int a = p.second.first;
        int b = p.second.second;

        

        if (!used[a] && !used[b]) {
            ans += c;
            k--;
            if (k == 0) break;
            used[a] = 1;
            used[b] = 1;
        }
    }

    if (k != 0) exit(-1);

    cout << ans << endl;

	return 0;
}

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: ACCEPTED

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

correct output
6

user output
6

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
233

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
301

Test 10

Group: 1, 2, 3

Verdict:

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

correct output
517

user output
1775

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:

input
200000 1661
894106972 620084612 931442312 ...

correct output
33089

user output
(empty)

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)