CSES - Datatähti Open 2021 - Results
Submission details
Task:Programmers
Sender:tutis
Submission time:2021-01-31 00:04:21 +0200
Language:C++11
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#10.01 s1, 2, 3details
#2ACCEPTED0.01 s1, 2, 3details
#3ACCEPTED0.01 s1, 2, 3details
#40.01 s1, 2, 3details
#50.01 s1, 2, 3details
#60.01 s1, 2, 3details
#70.01 s1, 2, 3details
#80.02 s1, 2, 3details
#90.03 s1, 2, 3details
#10ACCEPTED0.01 s1, 2, 3details
#110.01 s1, 2, 3details
#120.01 s1, 3details
#130.01 s1, 3details
#140.02 s1, 3details
#150.01 s1, 3details
#160.02 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
#25--3details
#26--3details
#27--3details
#28--3details
#29--3details
#30--3details
#31--3details

Code

/*input
8 3
1 2 3 3 4 7 7 9
*/
#pragma GCC optimize ("O3")
#pragma GCC target ("avx2")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;
template<typename T>
using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template<typename T, typename X>
using ordered_map = tree<T, X, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template<typename T, typename X>
using fast_map = cc_hash_table<T, X>;
//using ull = __uint128_t;
using ull = unsigned long long;
using ll = long long;
using ld = long double;
mt19937_64 rng(123);
const ll mod = 1000000007;
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	int n, k;
	cin >> n >> k;
	int x[n];
	for (int i = 0; i < n; i++)
		cin >> x[i];
	vector<bool>set(n, false);
	sort(x, x + n);
	int sum = 0;
	for (int i = 0; i < 2 * k; i += 2)
	{
		sum += x[i + 1] - x[i];
		set[i + 1] = true;
	}
	int ans = sum;
	priority_queue<pair<int, int>>Q;
	auto f = [&](int i)->pair<int, int>
	{
		return {2 * x[i] - x[i - 1] - x[i + 1], i};
	};
	if (2 * k < n)
	{
		Q.push(f(2 * k - 1));
	}
	while (!Q.empty())
	{
		sum -= Q.top().first;
		ans = min(ans, sum);
		int i = Q.top().second;
		Q.pop();
		set[i] = false;
		set[i + 1] = true;
		x[i] = false;
		x[i + 1] = true;
		if (i == 2 || (i >= 3 && set[i - 2]))
			Q.push(f(i - 2));
		if (i + 2 < n)
			Q.push(f(i + 2));
	}
	cout << ans << "\n";
}

Test details

Test 1

Group: 1, 2, 3

Verdict:

input
8 3
3 1 2 7 9 3 4 7

correct output
1

user output
-4928

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:

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

correct output
0

user output
-1431669128

Test 5

Group: 1, 2, 3

Verdict:

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

correct output
0

user output
-47

Test 6

Group: 1, 2, 3

Verdict:

input
10 3
10 19 16 15 12 5 14 8 3 15

correct output
4

user output
-1431661123

Test 7

Group: 1, 2, 3

Verdict:

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

correct output
213

user output
-1432066956

Test 8

Group: 1, 2, 3

Verdict:

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

correct output
0

user output
-368388

Test 9

Group: 1, 2, 3

Verdict:

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

correct output
276

user output
-33002

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:

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

correct output
0

user output
-514665

Test 12

Group: 1, 3

Verdict:

input
1464 320
846762124 954854396 12767390 7...

correct output
35809369

user output
-2146451754

Test 13

Group: 1, 3

Verdict:

input
2000 231
801945178 924940258 369188694 ...

correct output
7831421

user output
-2129315433

Test 14

Group: 1, 3

Verdict:

input
2000 461
464790475 932031556 838378103 ...

correct output
37272564

user output
-2133654538

Test 15

Group: 1, 3

Verdict:

input
2000 100
484046702 267135814 995006323 ...

correct output
1268400

user output
-2145656329

Test 16

Group: 1, 3

Verdict:

input
2000 996
98352148 438929491 242618159 1...

correct output
445965905

user output
-1494076703

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)