oj.uz

Submission #227269

# Submission time Handle Problem Language Result Execution time Memory
227269 2020-04-26T16:36:28 Z MKopchev Minerals (JOI19_minerals) C++14
100 / 100
 109 ms 11940 KB 
#include "minerals.h"
#include<bits/stdc++.h>
using namespace std;

const int nmax=1e5+42;

int used=0;

int colour[nmax]={0,1,2,3,3,1,2,4,4};
int cnt[nmax];
bool in[nmax];

int CURRENT;
/*
int Query(int pos)
{
    used++;

    CURRENT=CURRENT-(cnt[colour[pos]]>0);

    if(in[pos])
    {
        in[pos]=0;
        cnt[colour[pos]]--;
    }
    else
    {
        in[pos]=1;
        cnt[colour[pos]]++;
    }

    CURRENT=CURRENT+(cnt[colour[pos]]>0);

    return CURRENT;
}
void Answer(int a,int b)
{
    return;
    cout<<a<<" "<<b<<endl;
}
*/
mt19937 rng(42);

vector< pair<int,int> > outp;

int current=0;

int which_is_active(int le,int ri)
{
    if(le)return 0;
    return 1;
}

const int MX=1000;

int opt[MX]={0,0,1,1,1,1,1,3,3,1};

double exp_time[MX][MX];

double dp_time[MX];

double coeff=/*(1+sqrt(5))/2+1*/2.6246;

void solve(vector<int> lhs,vector<int> rhs,bool active_lhs)
{
    shuffle(rhs.begin(),rhs.end(),rng);

    if(lhs.size()==1)
    {
        outp.push_back({lhs[0],rhs[0]});
        return;
    }

    int mid=lhs.size()/2;

    if(lhs.size()<MX)mid=opt[lhs.size()];

    else mid=lhs.size()/coeff;

    vector<int> lhs_new[2],rhs_new[2];

    lhs_new[0]={};lhs_new[1]={};

    rhs_new[0]={};rhs_new[1]={};

    for(int i=0;i<mid;i++)
    {
        int mem=Query(lhs[i]);

        current=mem;

        lhs_new[0].push_back(lhs[i]);
    }

    for(int i=mid;i<lhs.size();i++)
        lhs_new[1].push_back(lhs[i]);

    bool type_lhs[2]={!active_lhs,active_lhs};

    for(auto k:rhs)
    {
        if(rhs_new[0].size()==lhs_new[0].size())rhs_new[1].push_back(k);
        else if(rhs_new[1].size()==lhs_new[1].size())rhs_new[0].push_back(k);
        else
        {
            int mem=Query(k);

            if(current==mem)rhs_new[which_is_active(type_lhs[0],type_lhs[1])].push_back(k);
            else rhs_new[!which_is_active(type_lhs[0],type_lhs[1])].push_back(k);

            current=mem;
        }
    }

    solve(lhs_new[0],rhs_new[0],type_lhs[0]);

    solve(lhs_new[1],rhs_new[1],type_lhs[1]);
}
void Solve(int n)
{
    for(int r=1;r<MX;r++)
        for(int b=1;b<MX;b++)
        {
            exp_time[r][b]=1+exp_time[r-1][b]*r/(r+b)+exp_time[r][b-1]*b/(r+b);
        }

    for(int n_now=2;n_now<MX;n_now++)
    {
        dp_time[n_now]=1e9;
        for(int mid=1;mid<n_now;mid++)
        {
            double now=dp_time[mid]+dp_time[n_now-mid]+mid+exp_time[mid][n_now-mid];

            if(dp_time[n_now]>now)
            {
                opt[n_now]=mid;
                dp_time[n_now]=now;
            }
        }
    }

    vector<int> lhs={},rhs={};

    for(int i=1;i<=2*n;i++)
    {
        int mem=Query(i);
        if(current<mem)lhs.push_back(i);
        else rhs.push_back(i);

        current=mem;
    }

    solve(lhs,rhs,1);

    for(int i=0;i<n;i++)
        Answer(outp[i].first,outp[i].second);
}
/*
int n;
void create()
{

    for(int i=1;i<=n;i++)
        colour[i]=i;
    for(int i=n+1;i<=2*n;i++)
        colour[i]=i-n;

    shuffle(colour+1,colour+2*n+1,rng);
}

int main()
{
    n=4.3e4;

    create();

    Solve(n);

    cout<<"used= "<<used<<endl;

    return 0;
}
*/

Compilation message

minerals.cpp: In function 'void solve(std::vector<int>, std::vector<int>, bool)':
minerals.cpp:95:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=mid;i<lhs.size();i++)
                   ~^~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 8192 KB Output is correct
2 Correct 20 ms 8192 KB Output is correct
3 Correct 20 ms 8192 KB Output is correct
4 Correct 20 ms 8192 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 8320 KB Output is correct
2 Correct 23 ms 8320 KB Output is correct
3 Correct 26 ms 8576 KB Output is correct
4 Correct 33 ms 8952 KB Output is correct
5 Correct 49 ms 9592 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 8192 KB Output is correct
2 Correct 20 ms 8192 KB Output is correct
3 Correct 20 ms 8192 KB Output is correct
4 Correct 20 ms 8192 KB Output is correct
5 Correct 21 ms 8320 KB Output is correct
6 Correct 23 ms 8320 KB Output is correct
7 Correct 26 ms 8576 KB Output is correct
8 Correct 33 ms 8952 KB Output is correct
9 Correct 49 ms 9592 KB Output is correct
10 Correct 21 ms 8320 KB Output is correct
11 Correct 37 ms 9208 KB Output is correct
12 Correct 48 ms 9572 KB Output is correct
13 Correct 44 ms 9656 KB Output is correct
14 Correct 46 ms 9568 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 8192 KB Output is correct
2 Correct 20 ms 8192 KB Output is correct
3 Correct 20 ms 8192 KB Output is correct
4 Correct 20 ms 8192 KB Output is correct
5 Correct 21 ms 8320 KB Output is correct
6 Correct 23 ms 8320 KB Output is correct
7 Correct 26 ms 8576 KB Output is correct
8 Correct 33 ms 8952 KB Output is correct
9 Correct 49 ms 9592 KB Output is correct
10 Correct 21 ms 8320 KB Output is correct
11 Correct 37 ms 9208 KB Output is correct
12 Correct 48 ms 9572 KB Output is correct
13 Correct 44 ms 9656 KB Output is correct
14 Correct 46 ms 9568 KB Output is correct
15 Correct 96 ms 11540 KB Output is correct
16 Correct 90 ms 11608 KB Output is correct
17 Correct 86 ms 11568 KB Output is correct
18 Correct 88 ms 11396 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 8192 KB Output is correct
2 Correct 20 ms 8192 KB Output is correct
3 Correct 20 ms 8192 KB Output is correct
4 Correct 20 ms 8192 KB Output is correct
5 Correct 21 ms 8320 KB Output is correct
6 Correct 23 ms 8320 KB Output is correct
7 Correct 26 ms 8576 KB Output is correct
8 Correct 33 ms 8952 KB Output is correct
9 Correct 49 ms 9592 KB Output is correct
10 Correct 21 ms 8320 KB Output is correct
11 Correct 37 ms 9208 KB Output is correct
12 Correct 48 ms 9572 KB Output is correct
13 Correct 44 ms 9656 KB Output is correct
14 Correct 46 ms 9568 KB Output is correct
15 Correct 96 ms 11540 KB Output is correct
16 Correct 90 ms 11608 KB Output is correct
17 Correct 86 ms 11568 KB Output is correct
18 Correct 88 ms 11396 KB Output is correct
19 Correct 91 ms 11668 KB Output is correct
20 Correct 93 ms 11660 KB Output is correct
21 Correct 92 ms 11668 KB Output is correct
22 Correct 88 ms 11540 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 8192 KB Output is correct
2 Correct 20 ms 8192 KB Output is correct
3 Correct 20 ms 8192 KB Output is correct
4 Correct 20 ms 8192 KB Output is correct
5 Correct 21 ms 8320 KB Output is correct
6 Correct 23 ms 8320 KB Output is correct
7 Correct 26 ms 8576 KB Output is correct
8 Correct 33 ms 8952 KB Output is correct
9 Correct 49 ms 9592 KB Output is correct
10 Correct 21 ms 8320 KB Output is correct
11 Correct 37 ms 9208 KB Output is correct
12 Correct 48 ms 9572 KB Output is correct
13 Correct 44 ms 9656 KB Output is correct
14 Correct 46 ms 9568 KB Output is correct
15 Correct 96 ms 11540 KB Output is correct
16 Correct 90 ms 11608 KB Output is correct
17 Correct 86 ms 11568 KB Output is correct
18 Correct 88 ms 11396 KB Output is correct
19 Correct 91 ms 11668 KB Output is correct
20 Correct 93 ms 11660 KB Output is correct
21 Correct 92 ms 11668 KB Output is correct
22 Correct 88 ms 11540 KB Output is correct
23 Correct 94 ms 11716 KB Output is correct
24 Correct 95 ms 11716 KB Output is correct
25 Correct 93 ms 11760 KB Output is correct
26 Correct 91 ms 11532 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 8192 KB Output is correct
2 Correct 20 ms 8192 KB Output is correct
3 Correct 20 ms 8192 KB Output is correct
4 Correct 20 ms 8192 KB Output is correct
5 Correct 21 ms 8320 KB Output is correct
6 Correct 23 ms 8320 KB Output is correct
7 Correct 26 ms 8576 KB Output is correct
8 Correct 33 ms 8952 KB Output is correct
9 Correct 49 ms 9592 KB Output is correct
10 Correct 21 ms 8320 KB Output is correct
11 Correct 37 ms 9208 KB Output is correct
12 Correct 48 ms 9572 KB Output is correct
13 Correct 44 ms 9656 KB Output is correct
14 Correct 46 ms 9568 KB Output is correct
15 Correct 96 ms 11540 KB Output is correct
16 Correct 90 ms 11608 KB Output is correct
17 Correct 86 ms 11568 KB Output is correct
18 Correct 88 ms 11396 KB Output is correct
19 Correct 91 ms 11668 KB Output is correct
20 Correct 93 ms 11660 KB Output is correct
21 Correct 92 ms 11668 KB Output is correct
22 Correct 88 ms 11540 KB Output is correct
23 Correct 94 ms 11716 KB Output is correct
24 Correct 95 ms 11716 KB Output is correct
25 Correct 93 ms 11760 KB Output is correct
26 Correct 91 ms 11532 KB Output is correct
27 Correct 109 ms 11704 KB Output is correct
28 Correct 99 ms 11664 KB Output is correct
29 Correct 92 ms 11724 KB Output is correct
30 Correct 91 ms 11600 KB Output is correct

Subtask #8
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 8192 KB Output is correct
2 Correct 20 ms 8192 KB Output is correct
3 Correct 20 ms 8192 KB Output is correct
4 Correct 20 ms 8192 KB Output is correct
5 Correct 21 ms 8320 KB Output is correct
6 Correct 23 ms 8320 KB Output is correct
7 Correct 26 ms 8576 KB Output is correct
8 Correct 33 ms 8952 KB Output is correct
9 Correct 49 ms 9592 KB Output is correct
10 Correct 21 ms 8320 KB Output is correct
11 Correct 37 ms 9208 KB Output is correct
12 Correct 48 ms 9572 KB Output is correct
13 Correct 44 ms 9656 KB Output is correct
14 Correct 46 ms 9568 KB Output is correct
15 Correct 96 ms 11540 KB Output is correct
16 Correct 90 ms 11608 KB Output is correct
17 Correct 86 ms 11568 KB Output is correct
18 Correct 88 ms 11396 KB Output is correct
19 Correct 91 ms 11668 KB Output is correct
20 Correct 93 ms 11660 KB Output is correct
21 Correct 92 ms 11668 KB Output is correct
22 Correct 88 ms 11540 KB Output is correct
23 Correct 94 ms 11716 KB Output is correct
24 Correct 95 ms 11716 KB Output is correct
25 Correct 93 ms 11760 KB Output is correct
26 Correct 91 ms 11532 KB Output is correct
27 Correct 109 ms 11704 KB Output is correct
28 Correct 99 ms 11664 KB Output is correct
29 Correct 92 ms 11724 KB Output is correct
30 Correct 91 ms 11600 KB Output is correct
31 Correct 101 ms 11688 KB Output is correct
32 Correct 97 ms 11776 KB Output is correct
33 Correct 98 ms 11772 KB Output is correct
34 Correct 99 ms 11580 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 8192 KB Output is correct
2 Correct 20 ms 8192 KB Output is correct
3 Correct 20 ms 8192 KB Output is correct
4 Correct 20 ms 8192 KB Output is correct
5 Correct 21 ms 8320 KB Output is correct
6 Correct 23 ms 8320 KB Output is correct
7 Correct 26 ms 8576 KB Output is correct
8 Correct 33 ms 8952 KB Output is correct
9 Correct 49 ms 9592 KB Output is correct
10 Correct 21 ms 8320 KB Output is correct
11 Correct 37 ms 9208 KB Output is correct
12 Correct 48 ms 9572 KB Output is correct
13 Correct 44 ms 9656 KB Output is correct
14 Correct 46 ms 9568 KB Output is correct
15 Correct 96 ms 11540 KB Output is correct
16 Correct 90 ms 11608 KB Output is correct
17 Correct 86 ms 11568 KB Output is correct
18 Correct 88 ms 11396 KB Output is correct
19 Correct 91 ms 11668 KB Output is correct
20 Correct 93 ms 11660 KB Output is correct
21 Correct 92 ms 11668 KB Output is correct
22 Correct 88 ms 11540 KB Output is correct
23 Correct 94 ms 11716 KB Output is correct
24 Correct 95 ms 11716 KB Output is correct
25 Correct 93 ms 11760 KB Output is correct
26 Correct 91 ms 11532 KB Output is correct
27 Correct 109 ms 11704 KB Output is correct
28 Correct 99 ms 11664 KB Output is correct
29 Correct 92 ms 11724 KB Output is correct
30 Correct 91 ms 11600 KB Output is correct
31 Correct 101 ms 11688 KB Output is correct
32 Correct 97 ms 11776 KB Output is correct
33 Correct 98 ms 11772 KB Output is correct
34 Correct 99 ms 11580 KB Output is correct
35 Correct 109 ms 11940 KB Output is correct
36 Correct 101 ms 11920 KB Output is correct
37 Correct 102 ms 11920 KB Output is correct
38 Correct 102 ms 11788 KB Output is correct