CSES - Datatähti Open 2021 - Results
Submission details
Task:Programmers
Sender:voventa
Submission time:2021-01-31 17:29:38 +0200
Language:C++ (C++17)
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
#8ACCEPTED0.01 s1, 2, 3details
#90.01 s1, 2, 3details
#10ACCEPTED0.01 s1, 2, 3details
#11ACCEPTED0.01 s1, 2, 3details
#120.01 s1, 3details
#130.01 s1, 3details
#140.01 s1, 3details
#150.01 s1, 3details
#160.01 s1, 3details
#17ACCEPTED0.02 s2, 3details
#18ACCEPTED0.04 s2, 3details
#19ACCEPTED0.04 s2, 3details
#200.04 s2, 3details
#210.04 s2, 3details
#220.04 s2, 3details
#230.04 s2, 3details
#240.15 s3details
#250.07 s3details
#260.15 s3details
#270.09 s3details
#280.15 s3details
#290.18 s3details
#300.16 s3details
#310.19 s3details

Code

#include <bits/stdc++.h>
#define X first
#define Y second
#define sz(a) (int)a.size()
#define pb push_back
#define int long long

using namespace std;
typedef long long ll;

void solve();

signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    int t = 1;
    //cin >> t;
    while (t--)
        solve();
    return 0;
}

int a[200010];
int c[200010];

int dp[2010][1010];

set <pair <int, int>> s;

vector <pair <int, pair <int, int>>> vv;

void solve() {
    int n, k;
    cin >> n >> k;
    for (int i = 0; i < n; ++i) {
        cin >> c[i];
    }
    sort(c, c + n);
    int uk = 0;
    vector <int> v = {c[0]};
    for (int i = 1; i < n; ++i) {
        if (c[i] != c[i - 1]) {
            k -= sz(v) / 2;
            if (sz(v) % 2 == 1) {
                a[uk] = c[i - 1];
                uk++;
            }
            v = {c[i]};
        } else
            v.pb(c[i]);
    }
    k -= sz(v) / 2;
    if (sz(v) % 2 == 1) {
        a[uk] = v.back();
        uk++;
    }
    n = uk;
    if (k <= 0) {
        cout << 0 << endl;
        return;
    }
    int ans = 0;
    for (int i = 1; i < n; ++i) {
        vv.pb({a[i] - a[i - 1], {i - 1, i}});
    }
    int pp = 0;
    while (sz(s) < k) {
        if (s.count({vv[pp].Y.Y, vv[pp].Y.Y + 1}) == 0 && s.count({vv[pp].Y.X - 1, vv[pp].Y.X}) == 0) {
            s.insert(vv[pp].Y);
            ans += vv[pp].X;
        }
        pp++;
    }
    cout << ans << endl;
    return;
}

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
458

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
434

Test 10

Group: 1, 2, 3

Verdict: ACCEPTED

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

correct output
517

user output
517

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
206269445

Test 13

Group: 1, 3

Verdict:

input
2000 231
801945178 924940258 369188694 ...

correct output
7831421

user output
113657919

Test 14

Group: 1, 3

Verdict:

input
2000 461
464790475 932031556 838378103 ...

correct output
37272564

user output
230015390

Test 15

Group: 1, 3

Verdict:

input
2000 100
484046702 267135814 995006323 ...

correct output
1268400

user output
54236980

Test 16

Group: 1, 3

Verdict:

input
2000 996
98352148 438929491 242618159 1...

correct output
445965905

user output
497332648

Test 17

Group: 2, 3

Verdict: ACCEPTED

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

correct output
0

user output
0

Test 18

Group: 2, 3

Verdict: ACCEPTED

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

correct output
0

user output
0

Test 19

Group: 2, 3

Verdict: ACCEPTED

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

correct output
0

user output
0

Test 20

Group: 2, 3

Verdict:

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

correct output
322

user output
484

Test 21

Group: 2, 3

Verdict:

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

correct output
245

user output
410

Test 22

Group: 2, 3

Verdict:

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

correct output
290

user output
421

Test 23

Group: 2, 3

Verdict:

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

correct output
252

user output
411

Test 24

Group: 3

Verdict:

input
195426 76599
442872072 619088799 118541378 ...

correct output
143376538

user output
393298422

Test 25

Group: 3

Verdict:

input
200000 1661
894106972 620084612 931442312 ...

correct output
33089

user output
8327164

Test 26

Group: 3

Verdict:

input
200000 86032
211444153 846442677 297198384 ...

correct output
196001810

user output
430585448

Test 27

Group: 3

Verdict:

input
200000 28275
28280312 349705372 96535649 84...

correct output
11627219

user output
142418224

Test 28

Group: 3

Verdict:

input
200000 81473
178022892 112774306 250584651 ...

correct output
162430841

user output
407208612

Test 29

Group: 3

Verdict:

input
200000 99987
297598052 494409138 182268523 ...

correct output
489497036

user output
499368297

Test 30

Group: 3

Verdict:

input
200000 99971
316462272 843156468 434342923 ...

correct output
483167476

user output
499749431

Test 31

Group: 3

Verdict:

input
200000 99964
811543559 465033274 620180191 ...

correct output
481497328

user output
499380103