CSES - Datatähti Open 2021 - Results
Submission details
Task:Programmers
Sender:MAKMED1337
Submission time:2021-01-30 23:04:05 +0200
Language:C++ (C++11)
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#10.01 s1, 2, 3details
#20.01 s1, 2, 3details
#30.01 s1, 2, 3details
#40.01 s1, 2, 3details
#5ACCEPTED0.01 s1, 2, 3details
#60.01 s1, 2, 3details
#70.01 s1, 2, 3details
#80.02 s1, 2, 3details
#90.02 s1, 2, 3details
#100.02 s1, 2, 3details
#11ACCEPTED0.01 s1, 2, 3details
#120.02 s1, 3details
#130.02 s1, 3details
#140.03 s1, 3details
#150.01 s1, 3details
#160.05 s1, 3details
#17ACCEPTED0.41 s2, 3details
#180.33 s2, 3details
#190.34 s2, 3details
#200.32 s2, 3details
#210.33 s2, 3details
#220.34 s2, 3details
#230.33 s2, 3details
#240.43 s3details
#250.43 s3details
#260.45 s3details
#270.45 s3details
#280.44 s3details
#290.45 s3details
#300.43 s3details
#310.45 s3details

Code

#include <bits/stdc++.h>
#include <climits>

using namespace std;

template<class T>
using V = vector<T>;
template<class T>
using VV = V<V<T>>;

using ld = long double;
#define ll long long
using ull = unsigned ll;
using PLL = pair<ll, ll>;
using VLL = V<ll>;
using VB = V<bool>;
using VVB = VV<bool>;
using VVLL = VV<ll>;
using Gr = VVLL;
using MLL = map<ll, ll>;
#define UMLL unordered_map<ll, ll, custom_hash>

//using int128 = __int128;
//using double128 = __float128;

#define fast ios_base::sync_with_stdio(0); cin.tie(nullptr); cout.tie(nullptr); cerr.tie(nullptr);

#define INF 300000000000
#define MINF LONG_MIN

#define R &
#define CR const R

#define FORI(i, a, b) for(ll i = a, max##i = b; i < max##i; ++i)
#define FOR(i, n) FORI(i, 0, n)
#define RFORI(i, a, b) for(ll i = a, min##i = b; i >= min##i; --i)
#define RFOR(i, n) RFORI(i, n, 0)
#define FORA(i, a) for(auto i : a)
#define FORAR(i, a) for(auto R i : a)
#define FORACR(i, a) for(auto CR i : a)
#define ALL(obj) begin(obj), end(obj)
#define Count(q) while(q--)
#define OK cerr << "OK\n";

#define mp make_pair
#define pb push_back

//#define DEBUG

template<class T>
T sqr(T x)
{
    return x * x;
}

void YES(bool g, ostream R os, bool upper = true)
{
    if(g)
        if(upper)
            os << "YES";
        else
            os << "Yes";
    else
        if(upper)
            os << "NO";
        else
            os << "No";

    os << "\n";
}

template<class T>
void show(T CR t, ostream R os = cerr)
{
    FORACR(i, t)
        os << i << " ";
    os << "\n";
}

template<class T>
void show2d(T CR t, ostream R os = cerr)
{
    FORACR(i, t)
        show(i, os);
    os << "\n";
}

constexpr ll MOD = 1e9 + 7;
//constexpr ll len = 40320 + 1;

constexpr ld PI = atanl(1.0L) * 4;

struct custom_hash
{
    static uint64_t splitmix64(uint64_t x)
    {
        x += 0x9e3779b97f4a7c15;
        x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
        x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
        return x ^ (x >> 31);
    }

    size_t operator() (uint64_t x) const
    {
        static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
        return splitmix64(x + FIXED_RANDOM);
    }
};

//arr
void init() {}

void solve(istream R is, ostream R os)
{
    ll n, k;
    is >> n >> k;

    VLL a(n);
    FORAR(i, a)
        is >> i;

    MLL m;
    FORACR(i, a)
        ++m[i];

    V<PLL> b;
    FORACR(i, m)
        b.pb(i);

    n = b.size();

    V<VVLL> dp(2, VVLL(n, VLL(k + 1, INF)));

    ll d = min(b[0].second / 2, k);
    FOR(i, d + 1)
        dp[0][0][i] = 0;

    d = min((b[0].second - 1) / 2, k);
    FOR(i, d + 1)
        dp[1][0][i] = 0;

    FORI(i, 1, n)
    {
        ll t = b[i].second;

        FOR(j, k + 1)
        {
            ll x = 0;
            if(j - t / 2 >= 0)
                x = dp[0][i - 1][j - t / 2];

            ll y = 0;
            if(j - (1 + (t - 1) / 2) >= 0)
                y = dp[1][i - 1][j - (1 + (t - 1) / 2)] + b[i].first - b[i - 1].first;

            if(t == 0)
                y = INF;

            dp[0][i][j] = min(x, y);
        }

        --t;
        FOR(j, k + 1)
        {
            ll x = 0;
            if(j - t / 2 >= 0)
                x = dp[0][i - 1][j - t / 2];

            ll y = 0;
            if(j - (1 + (t - 1) / 2) >= 0)
                y = dp[1][i - 1][j - (1 + (t - 1) / 2)] + b[i].first - b[i - 1].first;

            if(t == 0)
                y = INF;

            dp[0][i][j] = min(x, y);
        }
    }

    os << min(dp[0][n - 1][k], dp[1][n - 1][k]) << "\n";
}

void tester(istream R is, ostream R os)
{
    fast
    init();
    ll q = 1;
    //is >> q;
    os << setprecision(999);

    Count(q)
        solve(is, os);
}

int main()
{
    //ifstream in("input.txt");
    //ofstream out("output.txt");

    tester(cin, cout);
}

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
300000000000

Test 2

Group: 1, 2, 3

Verdict:

input
2 1
2 13

correct output
11

user output
300000000000

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
300000000000

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
300000000000

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:

input
10 3
10 19 16 15 12 5 14 8 3 15

correct output
4

user output
300000000000

Test 7

Group: 1, 2, 3

Verdict:

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

correct output
213

user output
300000000000

Test 8

Group: 1, 2, 3

Verdict:

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

correct output
0

user output
300000000000

Test 9

Group: 1, 2, 3

Verdict:

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

correct output
276

user output
300000000000

Test 10

Group: 1, 2, 3

Verdict:

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

correct output
517

user output
300000000000

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
300000000000

Test 13

Group: 1, 3

Verdict:

input
2000 231
801945178 924940258 369188694 ...

correct output
7831421

user output
300000000000

Test 14

Group: 1, 3

Verdict:

input
2000 461
464790475 932031556 838378103 ...

correct output
37272564

user output
300000000000

Test 15

Group: 1, 3

Verdict:

input
2000 100
484046702 267135814 995006323 ...

correct output
1268400

user output
300000000000

Test 16

Group: 1, 3

Verdict:

input
2000 996
98352148 438929491 242618159 1...

correct output
445965905

user output
300000000000

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:

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)