CSES - Datatähti Open 2021 - Results
Submission details
Task:Programmers
Sender:pidddgy
Submission time:2021-01-31 18:19:40 +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
#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
#8ACCEPTED0.41 s1, 2, 3details
#90.40 s1, 2, 3details
#100.40 s1, 2, 3details
#11ACCEPTED0.40 s1, 2, 3details
#120.19 s1, 3details
#130.34 s1, 3details
#140.35 s1, 3details
#15ACCEPTED0.33 s1, 3details
#160.33 s1, 3details
#170.08 s2, 3details
#180.06 s2, 3details
#190.02 s2, 3details
#200.01 s2, 3details
#210.04 s2, 3details
#220.01 s2, 3details
#230.03 s2, 3details
#24--3details
#250.11 s3details
#26--3details
#27--3details
#28--3details
#29--3details
#30--3details
#31--3details

Code

#include <bits/stdc++.h>
using namespace std;
// #define cerr if(false) cerr
#define watch(x) cerr << (#x) << " is " << (x) << endl;
#define endl '\n'
#define ld long double
#define int long long
#define pii pair<int, int>
#define fi first
#define se second
#define sz(a) (int)(a).size()
#define y1 lsdjkfhshfdsighoihweogihewoghi
#define all(x) (x).begin(), (x).end()

void solve() {
    
}

const int maxn = 2005;

int n, k;
int a[maxn];
bool used[maxn];

signed main() {
    ios::sync_with_stdio(0);
    cin.tie(0);

    cin >> n >> k;

    for(int i = 1; i <= n; i++) {
        cin >> a[i];
    }

    vector<pair<int, pii>> v;
    for(int i = 1; i <= n; i++) {
        for(int j = i+1; j <= n; j++) {
            v.emplace_back(abs(a[i]-a[j]), pii(i, j));
        }
    }

    sort(all(v));
    int ans = 0;
    int cnt = 0;
    for(auto x: v) {
        if(!used[x.se.fi] and !used[x.se.se] and cnt<k) {
            used[x.se.fi] = used[x.se.se] = true;
            ans += x.fi;
            cnt++;
        }
    }

    cout << ans << endl;
}

/*

*/

// Did you read the bounds?
// Did you make typos?
// Are there edge cases (N=1?)
// Are array sizes proper?
// Integer overflow?
// DS reset properly between test cases?
// Is using long longs causing TLE?
// Are you using floating points?

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
229

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
317

Test 10

Group: 1, 2, 3

Verdict:

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

correct output
517

user output
1511

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
1049

Test 18

Group: 2, 3

Verdict:

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

correct output
0

user output
156

Test 19

Group: 2, 3

Verdict:

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

correct output
0

user output
236

Test 20

Group: 2, 3

Verdict:

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

correct output
322

user output
592

Test 21

Group: 2, 3

Verdict:

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

correct output
245

user output
1056

Test 22

Group: 2, 3

Verdict:

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

correct output
290

user output
905

Test 23

Group: 2, 3

Verdict:

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

correct output
252

user output
751

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)