oj.uz

Submission #884955

# Submission time Handle Problem Language Result Execution time Memory
884955 2023-12-08T18:07:33 Z maxFedorchuk Dango Maker (JOI18_dango_maker) C++14
33 / 100
 2000 ms 262144 KB 
#include <bits/stdc++.h>

#pragma GCC target("avx2,sse4,popcnt,bmi")
#pragma GCC optimize("Ofast,unroll-loops")

using namespace std;

const int MX=2020;

int mtr[MX][MX];
char ch[MX][MX];

const int MXK=MX*MX;
vector < int > mas[2*MXK];
int usea[2*MXK];
int pr[2*MXK];

int timer=0,koma,komb;

bool khuna(int zar)
{
    if(usea[zar])
    {
        return 0;
    }

    usea[zar]=1;

    for(auto u:mas[zar])
    {
        if(pr[u]==0)
        {
            pr[zar]=u;
            pr[u]=zar;
            return 1;
        }
    }

    for(auto u:mas[zar])
    {
        if(khuna(pr[u]))
        {
            pr[zar]=u;
            pr[u]=zar;
            return 1;
        }
    }

    return 0;
}
void kntkhuna()
{
    while(true)
    {
        fill(usea+1,usea+1+timer,0);

        bool p=0;

        for(int i=1;i<=koma;i++)
        {
            if(pr[i]==0)
            {
                if(khuna(i))
                {
                    p=1;
                }
            }
        }

        if(!p)
        {
            return;
        }
    }

    return;
}

void DFS(int zar)
{
    usea[zar]=1;

    if(zar<=koma)
    {
        for(auto u:mas[zar])
        {
            if(pr[u]!=zar && usea[u]==0)
            {
                DFS(u);
            }
        }
    }
    else
    {
        if(usea[pr[zar]]==0)
        {
            DFS(pr[zar]);
        }
    }

    return;
}
int main()
{
    cin.tie(0);
    ios_base::sync_with_stdio(0);

    int n,m;
    cin>>n>>m;

    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=m;j++)
        {
            cin>>ch[i][j];
        }
    }

    for(int i=1;i<=n;i++)
    {
        for(int j=1;(j+2)<=m;j++)
        {
            if(ch[i][j]=='R' && ch[i][j+1]=='G' && ch[i][j+2]=='W')
            {
                timer++;
                mtr[i][j]=timer;
            }
        }
    }
    koma=timer;


    for(int i=1;(i+2)<=n;i++)
    {
        for(int j=1;j<=m;j++)
        {
            if(ch[i][j]=='R' && ch[i+1][j]=='G' && ch[i+2][j]=='W')
            {
                timer++;

                for(int corx=i;corx<=(i+2);corx++)
                {
                    for(int cory=max(1,j-2);cory<=j;cory++)
                    {
                        if(mtr[corx][cory])
                        {
                            mas[mtr[corx][cory]].push_back(timer);
                            mas[timer].push_back(mtr[corx][cory]);
                        }
                    }
                }
            }
        }
    }
    komb=timer-koma;

    if(koma==0)
    {
        cout<<komb<<"\n";
        return 0;
    }

    if(komb==0)
    {
        cout<<koma<<"\n";
        return 0;
    }

    kntkhuna();
    fill(usea+1,usea+koma+komb+1,0);

    for(int i=1;i<=koma;i++)
    {
        if(pr[i]==0)
        {
            DFS(i);
        }
    }

    int res=0;
    for(int i=1;i<=koma;i++)
    {
        res+=(usea[i]==1);
    }

    for(int i=(koma+1);i<=(koma+komb);i++)
    {
        res+=(usea[i]==0);
    }

    cout<<res<<"\n";
    return 0;
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 193192 KB Output is correct
2 Correct 42 ms 193108 KB Output is correct
3 Correct 46 ms 193364 KB Output is correct
4 Correct 42 ms 193204 KB Output is correct
5 Correct 41 ms 193116 KB Output is correct
6 Correct 43 ms 197432 KB Output is correct
7 Correct 42 ms 197388 KB Output is correct
8 Correct 44 ms 197412 KB Output is correct
9 Correct 43 ms 197204 KB Output is correct
10 Correct 44 ms 193660 KB Output is correct
11 Correct 42 ms 197316 KB Output is correct
12 Correct 42 ms 197304 KB Output is correct
13 Correct 43 ms 197324 KB Output is correct
14 Correct 45 ms 193108 KB Output is correct
15 Correct 42 ms 193356 KB Output is correct
16 Correct 42 ms 193112 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 193192 KB Output is correct
2 Correct 42 ms 193108 KB Output is correct
3 Correct 46 ms 193364 KB Output is correct
4 Correct 42 ms 193204 KB Output is correct
5 Correct 41 ms 193116 KB Output is correct
6 Correct 43 ms 197432 KB Output is correct
7 Correct 42 ms 197388 KB Output is correct
8 Correct 44 ms 197412 KB Output is correct
9 Correct 43 ms 197204 KB Output is correct
10 Correct 44 ms 193660 KB Output is correct
11 Correct 42 ms 197316 KB Output is correct
12 Correct 42 ms 197304 KB Output is correct
13 Correct 43 ms 197324 KB Output is correct
14 Correct 45 ms 193108 KB Output is correct
15 Correct 42 ms 193356 KB Output is correct
16 Correct 42 ms 193112 KB Output is correct
17 Correct 43 ms 197204 KB Output is correct
18 Correct 42 ms 197204 KB Output is correct
19 Correct 42 ms 197324 KB Output is correct
20 Correct 43 ms 197204 KB Output is correct
21 Correct 43 ms 197200 KB Output is correct
22 Correct 42 ms 197212 KB Output is correct
23 Correct 44 ms 197460 KB Output is correct
24 Correct 42 ms 195256 KB Output is correct
25 Correct 44 ms 193108 KB Output is correct
26 Correct 42 ms 193104 KB Output is correct
27 Correct 43 ms 197204 KB Output is correct
28 Correct 43 ms 197212 KB Output is correct
29 Correct 43 ms 197204 KB Output is correct
30 Correct 44 ms 193404 KB Output is correct
31 Correct 42 ms 193116 KB Output is correct
32 Correct 43 ms 193112 KB Output is correct
33 Correct 42 ms 197212 KB Output is correct
34 Correct 42 ms 197204 KB Output is correct
35 Correct 42 ms 197204 KB Output is correct
36 Correct 43 ms 197428 KB Output is correct
37 Correct 44 ms 197204 KB Output is correct
38 Correct 42 ms 197204 KB Output is correct
39 Correct 43 ms 197200 KB Output is correct
40 Correct 42 ms 197212 KB Output is correct
41 Correct 43 ms 197364 KB Output is correct
42 Correct 43 ms 197204 KB Output is correct
43 Correct 42 ms 197200 KB Output is correct
44 Correct 43 ms 197200 KB Output is correct
45 Correct 42 ms 197204 KB Output is correct
46 Correct 43 ms 197212 KB Output is correct
47 Correct 42 ms 197304 KB Output is correct
48 Correct 42 ms 197432 KB Output is correct
49 Correct 41 ms 197204 KB Output is correct
50 Correct 42 ms 197180 KB Output is correct
51 Correct 42 ms 197204 KB Output is correct
52 Correct 43 ms 197200 KB Output is correct
53 Correct 42 ms 197204 KB Output is correct

Subtask #3
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 193192 KB Output is correct
2 Correct 42 ms 193108 KB Output is correct
3 Correct 46 ms 193364 KB Output is correct
4 Correct 42 ms 193204 KB Output is correct
5 Correct 41 ms 193116 KB Output is correct
6 Correct 43 ms 197432 KB Output is correct
7 Correct 42 ms 197388 KB Output is correct
8 Correct 44 ms 197412 KB Output is correct
9 Correct 43 ms 197204 KB Output is correct
10 Correct 44 ms 193660 KB Output is correct
11 Correct 42 ms 197316 KB Output is correct
12 Correct 42 ms 197304 KB Output is correct
13 Correct 43 ms 197324 KB Output is correct
14 Correct 45 ms 193108 KB Output is correct
15 Correct 42 ms 193356 KB Output is correct
16 Correct 42 ms 193112 KB Output is correct
17 Correct 43 ms 197204 KB Output is correct
18 Correct 42 ms 197204 KB Output is correct
19 Correct 42 ms 197324 KB Output is correct
20 Correct 43 ms 197204 KB Output is correct
21 Correct 43 ms 197200 KB Output is correct
22 Correct 42 ms 197212 KB Output is correct
23 Correct 44 ms 197460 KB Output is correct
24 Correct 42 ms 195256 KB Output is correct
25 Correct 44 ms 193108 KB Output is correct
26 Correct 42 ms 193104 KB Output is correct
27 Correct 43 ms 197204 KB Output is correct
28 Correct 43 ms 197212 KB Output is correct
29 Correct 43 ms 197204 KB Output is correct
30 Correct 44 ms 193404 KB Output is correct
31 Correct 42 ms 193116 KB Output is correct
32 Correct 43 ms 193112 KB Output is correct
33 Correct 42 ms 197212 KB Output is correct
34 Correct 42 ms 197204 KB Output is correct
35 Correct 42 ms 197204 KB Output is correct
36 Correct 43 ms 197428 KB Output is correct
37 Correct 44 ms 197204 KB Output is correct
38 Correct 42 ms 197204 KB Output is correct
39 Correct 43 ms 197200 KB Output is correct
40 Correct 42 ms 197212 KB Output is correct
41 Correct 43 ms 197364 KB Output is correct
42 Correct 43 ms 197204 KB Output is correct
43 Correct 42 ms 197200 KB Output is correct
44 Correct 43 ms 197200 KB Output is correct
45 Correct 42 ms 197204 KB Output is correct
46 Correct 43 ms 197212 KB Output is correct
47 Correct 42 ms 197304 KB Output is correct
48 Correct 42 ms 197432 KB Output is correct
49 Correct 41 ms 197204 KB Output is correct
50 Correct 42 ms 197180 KB Output is correct
51 Correct 42 ms 197204 KB Output is correct
52 Correct 43 ms 197200 KB Output is correct
53 Correct 42 ms 197204 KB Output is correct
54 Correct 42 ms 195156 KB Output is correct
55 Execution timed out 2188 ms 262144 KB Time limit exceeded
56 Halted 0 ms 0 KB -