oj.uz

Submission #887535

# Submission time Handle Problem Language Result Execution time Memory
887535 2023-12-14T17:30:59 Z maxFedorchuk T-Covering (eJOI19_covering) C++14
100 / 100
 235 ms 77416 KB 
#include <bits/stdc++.h>
using namespace std;

const long long MX=1e6+10;

vector < long long > mas[MX];

long long vis[MX];
long long sm[MX];
long long a[MX];

long long n,m;

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

vector < long long > ver;
long long kver;

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

void DFS(long long 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(long long x,long long y)
{
    return (0<=x && x<n && 0<=y && y<m);
}

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

    cin>>n>>m;

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

    long long q,x,y;
    cin>>q;

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

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

        for(long long 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(long long 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(long long 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<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
  101 |             if(ver.size()<(3*kver))
      |                ~~~~~~~~~~^~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 26716 KB Output is correct
2 Correct 8 ms 29016 KB Output is correct
3 Correct 12 ms 32088 KB Output is correct
4 Correct 24 ms 36232 KB Output is correct
5 Correct 58 ms 49932 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 26712 KB Output is correct
2 Correct 8 ms 29388 KB Output is correct
3 Correct 13 ms 32092 KB Output is correct
4 Correct 22 ms 36232 KB Output is correct
5 Correct 58 ms 50036 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 26716 KB Output is correct
2 Correct 9 ms 29152 KB Output is correct
3 Correct 12 ms 31836 KB Output is correct
4 Correct 23 ms 36364 KB Output is correct
5 Correct 57 ms 49908 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 26716 KB Output is correct
2 Correct 6 ms 26716 KB Output is correct
3 Correct 10 ms 29276 KB Output is correct
4 Correct 9 ms 29020 KB Output is correct
5 Correct 13 ms 29928 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 26716 KB Output is correct
2 Correct 6 ms 26716 KB Output is correct
3 Correct 6 ms 26716 KB Output is correct
4 Correct 6 ms 26580 KB Output is correct
5 Correct 6 ms 26716 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 26716 KB Output is correct
2 Correct 8 ms 29016 KB Output is correct
3 Correct 12 ms 32088 KB Output is correct
4 Correct 24 ms 36232 KB Output is correct
5 Correct 58 ms 49932 KB Output is correct
6 Correct 7 ms 26712 KB Output is correct
7 Correct 8 ms 29388 KB Output is correct
8 Correct 13 ms 32092 KB Output is correct
9 Correct 22 ms 36232 KB Output is correct
10 Correct 58 ms 50036 KB Output is correct
11 Correct 8 ms 26716 KB Output is correct
12 Correct 9 ms 29152 KB Output is correct
13 Correct 12 ms 31836 KB Output is correct
14 Correct 23 ms 36364 KB Output is correct
15 Correct 57 ms 49908 KB Output is correct
16 Correct 6 ms 26716 KB Output is correct
17 Correct 6 ms 26716 KB Output is correct
18 Correct 10 ms 29276 KB Output is correct
19 Correct 9 ms 29020 KB Output is correct
20 Correct 13 ms 29928 KB Output is correct
21 Correct 6 ms 26716 KB Output is correct
22 Correct 9 ms 29532 KB Output is correct
23 Correct 15 ms 32092 KB Output is correct
24 Correct 23 ms 36240 KB Output is correct
25 Correct 59 ms 49828 KB Output is correct

Subtask #7
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 26716 KB Output is correct
2 Correct 8 ms 29016 KB Output is correct
3 Correct 12 ms 32088 KB Output is correct
4 Correct 24 ms 36232 KB Output is correct
5 Correct 58 ms 49932 KB Output is correct
6 Correct 7 ms 26712 KB Output is correct
7 Correct 8 ms 29388 KB Output is correct
8 Correct 13 ms 32092 KB Output is correct
9 Correct 22 ms 36232 KB Output is correct
10 Correct 58 ms 50036 KB Output is correct
11 Correct 8 ms 26716 KB Output is correct
12 Correct 9 ms 29152 KB Output is correct
13 Correct 12 ms 31836 KB Output is correct
14 Correct 23 ms 36364 KB Output is correct
15 Correct 57 ms 49908 KB Output is correct
16 Correct 6 ms 26716 KB Output is correct
17 Correct 6 ms 26716 KB Output is correct
18 Correct 10 ms 29276 KB Output is correct
19 Correct 9 ms 29020 KB Output is correct
20 Correct 13 ms 29928 KB Output is correct
21 Correct 6 ms 26716 KB Output is correct
22 Correct 6 ms 26716 KB Output is correct
23 Correct 6 ms 26716 KB Output is correct
24 Correct 6 ms 26580 KB Output is correct
25 Correct 6 ms 26716 KB Output is correct
26 Correct 6 ms 26716 KB Output is correct
27 Correct 9 ms 29532 KB Output is correct
28 Correct 15 ms 32092 KB Output is correct
29 Correct 23 ms 36240 KB Output is correct
30 Correct 59 ms 49828 KB Output is correct
31 Correct 235 ms 77416 KB Output is correct
32 Correct 59 ms 47696 KB Output is correct
33 Correct 74 ms 53620 KB Output is correct
34 Correct 60 ms 47480 KB Output is correct
35 Correct 132 ms 63608 KB Output is correct