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Submission #564617

# Submission time Handle Problem Language Result Execution time Memory
564617 2022-05-19T12:01:52 Z Dodo Building Skyscrapers (CEOI19_skyscrapers) C++14
8 / 100
 363 ms 33896 KB 
#include <bits/stdc++.h>
#define ll long long
#define endl '\n'
#define pb push_back
using namespace std;
const ll mx=150005;
vector<ll>v[mx];
ll cnt=0;
bool visited[mx];

void dfs (ll x)
{
  cnt++;
  visited[x]=1;
  for(auto u:v[x])
    if(visited[u]==0)
     dfs(u);
}

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    ll n,t;
    cin>>n>>t;
    vector<pair<ll,ll>>b(n);
    map<pair<ll,ll>,ll>mp;
    for(int i=0;i<n;i++)
    {
      ll x,y;
      cin>>x>>y;
      b[i]={x,y};
      mp[{x,y}]=i+1;
    }
    ll x[8]={1,1,1,-1,-1,-1,0,0},y[8]={1,-1,0,1,-1,0,1,-1};
    ll lmt=1000000000;
    for(int i=0;i<n;i++)
    {
      ll f=b[i].first,s=b[i].second;
      for(int j=0;j<8;j++)
        if(mp[{f+y[j],s+x[j]}]>0)
          v[mp[{f,s}]].push_back(mp[{f+y[j],s+x[j]}]);
    }
    dfs(1);

    if(cnt!=n)
      cout<<"NO"<<endl;

    else
    {
      cout<<"YES"<<endl;
      sort(b.begin(),b.end(),greater<pair<ll,ll>>());

      bool arr[n+1]={};
      cnt=1;
      cout<<mp[b[0]]<<endl;
      arr[mp[b[0]]]=1;

      while(cnt!=n)
      {
        for(int i=1;i<n;i++)
        {
          ll f=b[i].first,s=b[i].second;
          if(arr[mp[{f,s}]]==1)continue;
          for(int j=0;j<8;j++)
          {
            if(f+y[j]>lmt||s+x[j]>lmt)continue;
            if(arr[mp[{f+y[j],s+x[j]}]]==1)
            {
              cnt++;
              cout<<mp[{f,s}]<<endl;
              arr[mp[{f,s}]]=1;
              break;
            }
          }
        }
      }
    }
    return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3796 KB ans=YES N=1
2 Correct 2 ms 3796 KB ans=YES N=4
3 Correct 2 ms 3796 KB ans=NO N=4
4 Correct 2 ms 3796 KB ans=YES N=5
5 Correct 2 ms 3796 KB ans=YES N=9
6 Correct 3 ms 3796 KB ans=YES N=5
7 Correct 2 ms 3796 KB ans=NO N=9
8 Correct 2 ms 3796 KB ans=NO N=10
9 Correct 2 ms 3796 KB ans=YES N=10
10 Correct 2 ms 3796 KB ans=YES N=10
11 Correct 2 ms 3796 KB ans=YES N=10
12 Correct 3 ms 3796 KB ans=YES N=9
13 Correct 2 ms 3852 KB ans=YES N=9
14 Correct 2 ms 3796 KB ans=YES N=8
15 Correct 2 ms 3796 KB ans=YES N=8
16 Correct 2 ms 3796 KB ans=NO N=2

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3796 KB ans=YES N=1
2 Correct 2 ms 3796 KB ans=YES N=4
3 Correct 2 ms 3796 KB ans=NO N=4
4 Correct 2 ms 3796 KB ans=YES N=5
5 Correct 2 ms 3796 KB ans=YES N=9
6 Correct 3 ms 3796 KB ans=YES N=5
7 Correct 2 ms 3796 KB ans=NO N=9
8 Correct 2 ms 3796 KB ans=NO N=10
9 Correct 2 ms 3796 KB ans=YES N=10
10 Correct 2 ms 3796 KB ans=YES N=10
11 Correct 2 ms 3796 KB ans=YES N=10
12 Correct 3 ms 3796 KB ans=YES N=9
13 Correct 2 ms 3852 KB ans=YES N=9
14 Correct 2 ms 3796 KB ans=YES N=8
15 Correct 2 ms 3796 KB ans=YES N=8
16 Correct 2 ms 3796 KB ans=NO N=2
17 Incorrect 2 ms 3796 KB Added cell 17 (1,2) not reachable from infinity
18 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3796 KB ans=YES N=1
2 Correct 2 ms 3796 KB ans=YES N=4
3 Correct 2 ms 3796 KB ans=NO N=4
4 Correct 2 ms 3796 KB ans=YES N=5
5 Correct 2 ms 3796 KB ans=YES N=9
6 Correct 3 ms 3796 KB ans=YES N=5
7 Correct 2 ms 3796 KB ans=NO N=9
8 Correct 2 ms 3796 KB ans=NO N=10
9 Correct 2 ms 3796 KB ans=YES N=10
10 Correct 2 ms 3796 KB ans=YES N=10
11 Correct 2 ms 3796 KB ans=YES N=10
12 Correct 3 ms 3796 KB ans=YES N=9
13 Correct 2 ms 3852 KB ans=YES N=9
14 Correct 2 ms 3796 KB ans=YES N=8
15 Correct 2 ms 3796 KB ans=YES N=8
16 Correct 2 ms 3796 KB ans=NO N=2
17 Incorrect 2 ms 3796 KB Added cell 17 (1,2) not reachable from infinity
18 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4948 KB ans=NO N=1934
2 Correct 7 ms 4212 KB ans=NO N=1965
3 Incorrect 10 ms 4180 KB Added cell 1782 (357,253) not reachable from infinity
4 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3796 KB ans=YES N=1
2 Correct 2 ms 3796 KB ans=YES N=4
3 Correct 2 ms 3796 KB ans=NO N=4
4 Correct 2 ms 3796 KB ans=YES N=5
5 Correct 2 ms 3796 KB ans=YES N=9
6 Correct 3 ms 3796 KB ans=YES N=5
7 Correct 2 ms 3796 KB ans=NO N=9
8 Correct 2 ms 3796 KB ans=NO N=10
9 Correct 2 ms 3796 KB ans=YES N=10
10 Correct 2 ms 3796 KB ans=YES N=10
11 Correct 2 ms 3796 KB ans=YES N=10
12 Correct 3 ms 3796 KB ans=YES N=9
13 Correct 2 ms 3852 KB ans=YES N=9
14 Correct 2 ms 3796 KB ans=YES N=8
15 Correct 2 ms 3796 KB ans=YES N=8
16 Correct 2 ms 3796 KB ans=NO N=2
17 Incorrect 2 ms 3796 KB Added cell 17 (1,2) not reachable from infinity
18 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 283 ms 17572 KB ans=NO N=66151
2 Correct 278 ms 33896 KB ans=NO N=64333
3 Incorrect 363 ms 17424 KB Added cell 69310 (134,-25) not reachable from infinity
4 Halted 0 ms 0 KB -

Subtask #7
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4948 KB ans=NO N=1934
2 Correct 7 ms 4212 KB ans=NO N=1965
3 Incorrect 10 ms 4180 KB Added cell 1782 (357,253) not reachable from infinity
4 Halted 0 ms 0 KB -