CSES - Datatähti Open 2021 - Results
Submission details
Task:Programmers
Sender:meatrow
Submission time:2021-01-29 20:36:08 +0200
Language:C++ (C++17)
Status:READY
Result:55
Feedback
groupverdictscore
#1ACCEPTED34
#2ACCEPTED21
#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
#7ACCEPTED0.01 s1, 2, 3details
#8ACCEPTED0.01 s1, 2, 3details
#9ACCEPTED0.01 s1, 2, 3details
#10ACCEPTED0.01 s1, 2, 3details
#11ACCEPTED0.01 s1, 2, 3details
#12ACCEPTED0.01 s1, 3details
#13ACCEPTED0.01 s1, 3details
#14ACCEPTED0.01 s1, 3details
#15ACCEPTED0.01 s1, 3details
#16ACCEPTED0.01 s1, 3details
#17ACCEPTED0.02 s2, 3details
#18ACCEPTED0.04 s2, 3details
#19ACCEPTED0.04 s2, 3details
#20ACCEPTED0.06 s2, 3details
#21ACCEPTED0.06 s2, 3details
#22ACCEPTED0.06 s2, 3details
#23ACCEPTED0.06 s2, 3details
#240.33 s3details
#250.33 s3details
#260.33 s3details
#270.33 s3details
#280.34 s3details
#290.34 s3details
#300.32 s3details
#310.33 s3details

Code

#pragma GCC optimize("O3")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx")
#include <bits/stdc++.h>
 
using namespace std;
 
using ll = long long;
using ld = long double;
 
const int mod = 1e9 + 7;
 
ll binpow(ll a, ll p) {
    ll res = 1;
    while (p) {
        if (p & 1) {
            (res *= a) %= mod;
        }
        p >>= 1;
        (a *= a) %= mod;
    }
    return res;
}

void solve() {
    int n, k;
    cin >> n >> k;
    vector<int> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i];
    }
    sort(a.begin(), a.end());
    vector<int> b;
    for (int i = 0; i < n; i++) {
        if (i + 4 < n && a[i] == a[i + 1] && a[i + 1] == a[i + 2] && a[i + 2] == a[i + 3] && a[i + 3] == a[i + 4]) {
            k--;
            i++;
        } else {
            b.push_back(a[i]);
        }
    }
    a = b;
    if (k <= 0) {
        cout << "0\n";
        return;
    }

    n = a.size();
    vector<vector<int>> dp(n + 1, vector<int>(k + 1, 1e9));
    dp[0][0] = 0;
    dp[1][0]=  0;
    for (int i = 2; i <= n; i++) {
        dp[i] = dp[i - 1];
        for (int j = 1; j <= k; j++) {
            dp[i][j] = min(dp[i][j], dp[i - 2][j - 1] + a[i - 1] - a[i - 2]);
        }
    }

    cout << dp[n][k] << '\n';
}
 
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int T = 1;
    // cin >> T;
    for (int tc = 1; tc <= T; tc++) {
        // cout << "Case #" << tc << ": ";
        solve();
    }
    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: ACCEPTED

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

correct output
213

user output
213

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: ACCEPTED

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

correct output
276

user output
276

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: ACCEPTED

input
1464 320
846762124 954854396 12767390 7...

correct output
35809369

user output
35809369

Test 13

Group: 1, 3

Verdict: ACCEPTED

input
2000 231
801945178 924940258 369188694 ...

correct output
7831421

user output
7831421

Test 14

Group: 1, 3

Verdict: ACCEPTED

input
2000 461
464790475 932031556 838378103 ...

correct output
37272564

user output
37272564

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: ACCEPTED

input
2000 996
98352148 438929491 242618159 1...

correct output
445965905

user output
445965905

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: ACCEPTED

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

correct output
322

user output
322

Test 21

Group: 2, 3

Verdict: ACCEPTED

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

correct output
245

user output
245

Test 22

Group: 2, 3

Verdict: ACCEPTED

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

correct output
290

user output
290

Test 23

Group: 2, 3

Verdict: ACCEPTED

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

correct output
252

user output
252

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)