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Submission #887537

# Submission time Handle Problem Language Result Execution time Memory
887537 2023-12-14T17:33:37 Z maxFedorchuk T-Covering (eJOI19_covering) C++14
100 / 100
 224 ms 57900 KB 
#include <bits/stdc++.h>
using namespace std;

const int MX=1e6+10;

vector < int > mas[MX];

int vis[MX];
int sm[MX];
int a[MX];

int n,m;

int corx[4]={0,0,1,-1};
int cory[4]={1,-1,0,0};

vector < int > ver;
int kver;

int prd(int x,int y)
{
    return (x*m+y);
}

void DFS(int zar)
{
    if(sm[zar])
    {
        kver++;
    }
    else
    {
        ver.push_back(a[zar]);
    }

    vis[zar]=1;

    for(auto u:mas[zar])
    {
        if(!vis[u])
        {
            DFS(u);
        }
    }

    return;
}

bool can_go(int x,int y)
{
    return (0<=x && x<n && 0<=y && y<m);
}

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

    cin>>n>>m;

    int zn;
    for(int i=0;i<n;i++)
    {
        for(int j=0;j<m;j++)
        {
            cin>>zn;
            a[prd(i,j)]=zn;
        }
    }

    int q,x,y;
    cin>>q;

    int res=0;
    for(int i=0;i<q;i++)
    {
        cin>>x>>y;
        res+=a[prd(x,y)];

        sm[prd(x,y)]=1;

        for(int j=0;j<4;j++)
        {
            if(can_go(x+corx[j],y+cory[j]))
            {
                mas[prd(x,y)].push_back(prd(x+corx[j],y+cory[j]));
                mas[prd(x+corx[j],y+cory[j])].push_back(prd(x,y));
            }
        }
    }

    for(int i=0;i<n*m;i++)
    {
        if(!vis[i] && sm[i])
        {
            ver.clear();
            kver=0;

            DFS(i);

            if(ver.size()<(3*kver))
            {
                cout<<"No\n";
                return 0;
            }

            sort(ver.begin(),ver.end());
            reverse(ver.begin(),ver.end());

            kver*=3;
            for(int i=0;i<kver;i++)
            {
                res+=ver[i];
            }
        }
    }

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

Compilation message

covering.cpp: In function 'int main()':
covering.cpp:101:26: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  101 |             if(ver.size()<(3*kver))
      |                ~~~~~~~~~~^~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 27224 KB Output is correct
2 Correct 7 ms 27348 KB Output is correct
3 Correct 12 ms 31964 KB Output is correct
4 Correct 21 ms 32604 KB Output is correct
5 Correct 54 ms 35652 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 27228 KB Output is correct
2 Correct 7 ms 27480 KB Output is correct
3 Correct 11 ms 31836 KB Output is correct
4 Correct 22 ms 32604 KB Output is correct
5 Correct 55 ms 35660 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 27228 KB Output is correct
2 Correct 8 ms 27352 KB Output is correct
3 Correct 12 ms 31836 KB Output is correct
4 Correct 22 ms 32768 KB Output is correct
5 Correct 56 ms 35668 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 27228 KB Output is correct
2 Correct 5 ms 27228 KB Output is correct
3 Correct 9 ms 29532 KB Output is correct
4 Correct 8 ms 27536 KB Output is correct
5 Correct 11 ms 29808 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 27228 KB Output is correct
2 Correct 5 ms 27228 KB Output is correct
3 Correct 6 ms 27096 KB Output is correct
4 Correct 6 ms 27228 KB Output is correct
5 Correct 7 ms 27228 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 27224 KB Output is correct
2 Correct 7 ms 27348 KB Output is correct
3 Correct 12 ms 31964 KB Output is correct
4 Correct 21 ms 32604 KB Output is correct
5 Correct 54 ms 35652 KB Output is correct
6 Correct 7 ms 27228 KB Output is correct
7 Correct 7 ms 27480 KB Output is correct
8 Correct 11 ms 31836 KB Output is correct
9 Correct 22 ms 32604 KB Output is correct
10 Correct 55 ms 35660 KB Output is correct
11 Correct 6 ms 27228 KB Output is correct
12 Correct 8 ms 27352 KB Output is correct
13 Correct 12 ms 31836 KB Output is correct
14 Correct 22 ms 32768 KB Output is correct
15 Correct 56 ms 35668 KB Output is correct
16 Correct 6 ms 27228 KB Output is correct
17 Correct 5 ms 27228 KB Output is correct
18 Correct 9 ms 29532 KB Output is correct
19 Correct 8 ms 27536 KB Output is correct
20 Correct 11 ms 29808 KB Output is correct
21 Correct 6 ms 27224 KB Output is correct
22 Correct 8 ms 27480 KB Output is correct
23 Correct 11 ms 31836 KB Output is correct
24 Correct 22 ms 32596 KB Output is correct
25 Correct 55 ms 35660 KB Output is correct

Subtask #7
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 27224 KB Output is correct
2 Correct 7 ms 27348 KB Output is correct
3 Correct 12 ms 31964 KB Output is correct
4 Correct 21 ms 32604 KB Output is correct
5 Correct 54 ms 35652 KB Output is correct
6 Correct 7 ms 27228 KB Output is correct
7 Correct 7 ms 27480 KB Output is correct
8 Correct 11 ms 31836 KB Output is correct
9 Correct 22 ms 32604 KB Output is correct
10 Correct 55 ms 35660 KB Output is correct
11 Correct 6 ms 27228 KB Output is correct
12 Correct 8 ms 27352 KB Output is correct
13 Correct 12 ms 31836 KB Output is correct
14 Correct 22 ms 32768 KB Output is correct
15 Correct 56 ms 35668 KB Output is correct
16 Correct 6 ms 27228 KB Output is correct
17 Correct 5 ms 27228 KB Output is correct
18 Correct 9 ms 29532 KB Output is correct
19 Correct 8 ms 27536 KB Output is correct
20 Correct 11 ms 29808 KB Output is correct
21 Correct 6 ms 27228 KB Output is correct
22 Correct 5 ms 27228 KB Output is correct
23 Correct 6 ms 27096 KB Output is correct
24 Correct 6 ms 27228 KB Output is correct
25 Correct 7 ms 27228 KB Output is correct
26 Correct 6 ms 27224 KB Output is correct
27 Correct 8 ms 27480 KB Output is correct
28 Correct 11 ms 31836 KB Output is correct
29 Correct 22 ms 32596 KB Output is correct
30 Correct 55 ms 35660 KB Output is correct
31 Correct 224 ms 57900 KB Output is correct
32 Correct 55 ms 35408 KB Output is correct
33 Correct 64 ms 37716 KB Output is correct
34 Correct 57 ms 35408 KB Output is correct
35 Correct 122 ms 45768 KB Output is correct