oj.uz

Submission #623193

# Submission time Handle Problem Language Result Execution time Memory
623193 2022-08-05T10:07:27 Z Hanksburger Fountain Parks (IOI21_parks) C++17
15 / 100
 588 ms 76012 KB 
#include "parks.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> adj[200005], X, Y, U, V, A, B;
vector<pair<int, int> > edge;
map<pair<int, int>, bool> mp;
map<pair<int, int>, int> p;
bool visited[200005];
queue<int> q;
bool cmp(pair<int, int> u, pair<int, int> v)
{
    if (X[u.first]!=X[v.first] || X[u.second]!=X[v.second])
        return (X[u.first]<X[v.first] || X[u.second]<X[v.second]);
    return Y[u.first]<Y[v.first];
}
int construct_roads(vector<int> x, vector<int> y)
{
    int N=x.size();
    for (int i=0; i<N; i++)
    {
        X.push_back(x[i]);
        Y.push_back(y[i]);
        p[{X[i], Y[i]}]=i+1;
    }
    for (auto itr=p.begin(); itr!=p.end(); itr++)
    {
        int ind=itr->second-1;
        if (p[{X[ind]-2, Y[ind]}])
            edge.push_back({p[{X[ind]-2, Y[ind]}]-1, ind});
        if (p[{X[ind], Y[ind]-2}])
            edge.push_back({p[{X[ind], Y[ind]-2}]-1, ind});
    }
    sort(edge.begin(), edge.end(), cmp);
    for (int i=0; i<edge.size(); i++)
    {
        int u=edge[i].first, v=edge[i].second;
        adj[u].push_back(v);
        adj[v].push_back(u);
        U.push_back(u);
        V.push_back(v);
        if (X[u]==X[v])
        {
            if (mp[{X[u]-1, Y[u]+1}])
            {
                A.push_back(X[u]+1);
                B.push_back(Y[u]+1);
                mp[{X[u]+1, Y[u]+1}]=1;
            }
            else
            {
                A.push_back(X[u]-1);
                B.push_back(Y[u]+1);
                mp[{X[u]-1, Y[u]+1}]=1;
            }
        }
        else
        {
            if (mp[{X[u]+1, Y[u]-1}])
            {
                A.push_back(X[u]+1);
                B.push_back(Y[u]+1);
                mp[{X[u]+1, Y[u]+1}]=1;
            }
            else
            {
                A.push_back(X[u]+1);
                B.push_back(Y[u]-1);
                mp[{X[u]+1, Y[u]-1}]=1;
            }
        }
    }
    q.push(0);
    visited[0]=1;
    while (!q.empty())
    {
        int u=q.front();
        q.pop();
        for (int v:adj[u])
        {
            if (!visited[v])
            {
                q.push(v);
                visited[v]=1;
            }
        }
    }
    for (int i=0; i<N; i++)
        if (!visited[i])
            return 0;
    build(U, V, A, B);
    return 1;
}

Compilation message

parks.cpp: In function 'int construct_roads(std::vector<int>, std::vector<int>)':
parks.cpp:34:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |     for (int i=0; i<edge.size(); i++)
      |                   ~^~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 222 ms 36152 KB Output is correct
10 Correct 16 ms 8148 KB Output is correct
11 Correct 92 ms 21712 KB Output is correct
12 Correct 24 ms 9676 KB Output is correct
13 Correct 62 ms 16828 KB Output is correct
14 Correct 4 ms 5204 KB Output is correct
15 Correct 5 ms 5492 KB Output is correct
16 Correct 211 ms 36148 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 222 ms 36152 KB Output is correct
10 Correct 16 ms 8148 KB Output is correct
11 Correct 92 ms 21712 KB Output is correct
12 Correct 24 ms 9676 KB Output is correct
13 Correct 62 ms 16828 KB Output is correct
14 Correct 4 ms 5204 KB Output is correct
15 Correct 5 ms 5492 KB Output is correct
16 Correct 211 ms 36148 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 3 ms 4896 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 2 ms 4920 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 588 ms 76012 KB Output is correct
24 Correct 2 ms 4948 KB Output is correct
25 Correct 4 ms 5332 KB Output is correct
26 Correct 6 ms 5840 KB Output is correct
27 Correct 7 ms 6100 KB Output is correct
28 Correct 202 ms 32880 KB Output is correct
29 Correct 321 ms 47200 KB Output is correct
30 Correct 440 ms 61156 KB Output is correct
31 Correct 574 ms 75984 KB Output is correct
32 Correct 2 ms 4948 KB Output is correct
33 Correct 2 ms 4948 KB Output is correct
34 Correct 3 ms 4948 KB Output is correct
35 Correct 2 ms 4948 KB Output is correct
36 Correct 3 ms 4948 KB Output is correct
37 Correct 3 ms 4948 KB Output is correct
38 Correct 3 ms 4948 KB Output is correct
39 Correct 2 ms 4948 KB Output is correct
40 Correct 3 ms 4948 KB Output is correct
41 Correct 2 ms 4948 KB Output is correct
42 Correct 3 ms 4948 KB Output is correct
43 Correct 4 ms 5460 KB Output is correct
44 Correct 5 ms 5716 KB Output is correct
45 Correct 199 ms 35196 KB Output is correct
46 Correct 303 ms 49212 KB Output is correct
47 Correct 319 ms 49192 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 222 ms 36152 KB Output is correct
10 Correct 16 ms 8148 KB Output is correct
11 Correct 92 ms 21712 KB Output is correct
12 Correct 24 ms 9676 KB Output is correct
13 Correct 62 ms 16828 KB Output is correct
14 Correct 4 ms 5204 KB Output is correct
15 Correct 5 ms 5492 KB Output is correct
16 Correct 211 ms 36148 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 3 ms 4896 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 2 ms 4920 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 588 ms 76012 KB Output is correct
24 Correct 2 ms 4948 KB Output is correct
25 Correct 4 ms 5332 KB Output is correct
26 Correct 6 ms 5840 KB Output is correct
27 Correct 7 ms 6100 KB Output is correct
28 Correct 202 ms 32880 KB Output is correct
29 Correct 321 ms 47200 KB Output is correct
30 Correct 440 ms 61156 KB Output is correct
31 Correct 574 ms 75984 KB Output is correct
32 Correct 2 ms 4948 KB Output is correct
33 Correct 2 ms 4948 KB Output is correct
34 Correct 3 ms 4948 KB Output is correct
35 Correct 2 ms 4948 KB Output is correct
36 Correct 3 ms 4948 KB Output is correct
37 Correct 3 ms 4948 KB Output is correct
38 Correct 3 ms 4948 KB Output is correct
39 Correct 2 ms 4948 KB Output is correct
40 Correct 3 ms 4948 KB Output is correct
41 Correct 2 ms 4948 KB Output is correct
42 Correct 3 ms 4948 KB Output is correct
43 Correct 4 ms 5460 KB Output is correct
44 Correct 5 ms 5716 KB Output is correct
45 Correct 199 ms 35196 KB Output is correct
46 Correct 303 ms 49212 KB Output is correct
47 Correct 319 ms 49192 KB Output is correct
48 Correct 3 ms 4948 KB Output is correct
49 Correct 2 ms 5004 KB Output is correct
50 Correct 3 ms 4948 KB Output is correct
51 Correct 3 ms 4948 KB Output is correct
52 Correct 3 ms 4948 KB Output is correct
53 Incorrect 2 ms 4948 KB Tree @(5, 5) appears more than once: for edges on positions 4 and 6
54 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 222 ms 36152 KB Output is correct
10 Correct 16 ms 8148 KB Output is correct
11 Correct 92 ms 21712 KB Output is correct
12 Correct 24 ms 9676 KB Output is correct
13 Correct 62 ms 16828 KB Output is correct
14 Correct 4 ms 5204 KB Output is correct
15 Correct 5 ms 5492 KB Output is correct
16 Correct 211 ms 36148 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 447 ms 62236 KB Output is correct
21 Correct 485 ms 70620 KB Output is correct
22 Correct 460 ms 64316 KB Output is correct
23 Correct 384 ms 60436 KB Output is correct
24 Correct 243 ms 48912 KB Output is correct
25 Correct 388 ms 60216 KB Output is correct
26 Correct 368 ms 60228 KB Output is correct
27 Correct 482 ms 69152 KB Output is correct
28 Correct 497 ms 69152 KB Output is correct
29 Correct 497 ms 69268 KB Output is correct
30 Correct 483 ms 69316 KB Output is correct
31 Correct 3 ms 4948 KB Output is correct
32 Incorrect 31 ms 9436 KB Tree @(185725, 20413) appears more than once: for edges on positions 631 and 647
33 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 222 ms 36152 KB Output is correct
10 Correct 16 ms 8148 KB Output is correct
11 Correct 92 ms 21712 KB Output is correct
12 Correct 24 ms 9676 KB Output is correct
13 Correct 62 ms 16828 KB Output is correct
14 Correct 4 ms 5204 KB Output is correct
15 Correct 5 ms 5492 KB Output is correct
16 Correct 211 ms 36148 KB Output is correct
17 Correct 468 ms 68060 KB Output is correct
18 Correct 467 ms 70328 KB Output is correct
19 Incorrect 465 ms 67416 KB Tree @(100001, 50003) appears more than once: for edges on positions 199994 and 199995
20 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 222 ms 36152 KB Output is correct
10 Correct 16 ms 8148 KB Output is correct
11 Correct 92 ms 21712 KB Output is correct
12 Correct 24 ms 9676 KB Output is correct
13 Correct 62 ms 16828 KB Output is correct
14 Correct 4 ms 5204 KB Output is correct
15 Correct 5 ms 5492 KB Output is correct
16 Correct 211 ms 36148 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 3 ms 4896 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 2 ms 4920 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 588 ms 76012 KB Output is correct
24 Correct 2 ms 4948 KB Output is correct
25 Correct 4 ms 5332 KB Output is correct
26 Correct 6 ms 5840 KB Output is correct
27 Correct 7 ms 6100 KB Output is correct
28 Correct 202 ms 32880 KB Output is correct
29 Correct 321 ms 47200 KB Output is correct
30 Correct 440 ms 61156 KB Output is correct
31 Correct 574 ms 75984 KB Output is correct
32 Correct 2 ms 4948 KB Output is correct
33 Correct 2 ms 4948 KB Output is correct
34 Correct 3 ms 4948 KB Output is correct
35 Correct 2 ms 4948 KB Output is correct
36 Correct 3 ms 4948 KB Output is correct
37 Correct 3 ms 4948 KB Output is correct
38 Correct 3 ms 4948 KB Output is correct
39 Correct 2 ms 4948 KB Output is correct
40 Correct 3 ms 4948 KB Output is correct
41 Correct 2 ms 4948 KB Output is correct
42 Correct 3 ms 4948 KB Output is correct
43 Correct 4 ms 5460 KB Output is correct
44 Correct 5 ms 5716 KB Output is correct
45 Correct 199 ms 35196 KB Output is correct
46 Correct 303 ms 49212 KB Output is correct
47 Correct 319 ms 49192 KB Output is correct
48 Correct 3 ms 4948 KB Output is correct
49 Correct 2 ms 5004 KB Output is correct
50 Correct 3 ms 4948 KB Output is correct
51 Correct 3 ms 4948 KB Output is correct
52 Correct 3 ms 4948 KB Output is correct
53 Incorrect 2 ms 4948 KB Tree @(5, 5) appears more than once: for edges on positions 4 and 6
54 Halted 0 ms 0 KB -