oj.uz

Submission #802386

# Submission time Handle Problem Language Result Execution time Memory
802386 2023-08-02T12:02:37 Z SamAnd Fountain Parks (IOI21_parks) C++17
15 / 100
 524 ms 66296 KB 
#include "parks.h"
#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define m_p make_pair
#define sz(x) ((int)(x).size())
#define all(x) (x).begin(),(x).end()
const int N = 200005;

int n;
vector<int> g[N];

bool c[N];
void dfs(int x)
{
    c[x] = true;
    for (int i = 0; i < g[x].size(); ++i)
    {
        int h = g[x][i];
        if (c[h])
            continue;
        dfs(h);
    }
}

int construct_roads(std::vector<int> x, std::vector<int> y) {
    std::vector<int> u, v, a, b;

    n = sz(x);
    vector<pair<int, int> > p;
    map<pair<int, int>, int> mp;
    for (int i = 0; i < n; ++i)
    {
        p.push_back(m_p(x[i], y[i]));
        mp[m_p(x[i], y[i])] = i;
    }
    sort(all(p));
    set<pair<int, int> > s;
    for (int i = 0; i < n; ++i)
    {
        int x = p[i].fi;
        int y = p[i].se;
        if (mp.find(m_p(x + 2, y)) != mp.end())
        {
            u.push_back(mp[m_p(x, y)]);
            v.push_back(mp[m_p(x + 2, y)]);
            if (s.find(m_p(x + 1, y + 1)) == s.end())
            {
                a.push_back(x + 1);
                b.push_back(y + 1);
            }
            else if (s.find(m_p(x + 1, y - 1)) == s.end())
            {
                a.push_back(x + 1);
                b.push_back(y - 1);
            }
            else
            {
                assert(false);
            }
            s.insert(m_p(a.back(), b.back()));
            g[u.back()].push_back(v.back());
            g[v.back()].push_back(u.back());
        }
        if (mp.find(m_p(x, y + 2)) != mp.end())
        {
            u.push_back(mp[m_p(x, y)]);
            v.push_back(mp[m_p(x, y + 2)]);
            if (s.find(m_p(x + 1, y + 1)) == s.end())
            {
                a.push_back(x + 1);
                b.push_back(y + 1);
            }
            else if (s.find(m_p(x - 1, y + 1)) == s.end())
            {
                a.push_back(x - 1);
                b.push_back(y + 1);
            }
            else
            {
                assert(false);
            }
            s.insert(m_p(a.back(), b.back()));
            g[u.back()].push_back(v.back());
            g[v.back()].push_back(u.back());
        }
    }

    dfs(0);
    for (int i = 0; i < n; ++i)
    {
        if (!c[i])
            return 0;
    }

    build(u, v, a, b);
    return 1;
}

Compilation message

parks.cpp: In function 'void dfs(int)':
parks.cpp:18:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |     for (int i = 0; i < g[x].size(); ++i)
      |                     ~~^~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4988 KB Output is correct
2 Correct 2 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 2 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 150 ms 31116 KB Output is correct
10 Correct 13 ms 7684 KB Output is correct
11 Correct 69 ms 19172 KB Output is correct
12 Correct 18 ms 9052 KB Output is correct
13 Correct 44 ms 14456 KB Output is correct
14 Correct 3 ms 5076 KB Output is correct
15 Correct 4 ms 5332 KB Output is correct
16 Correct 183 ms 29240 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4988 KB Output is correct
2 Correct 2 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 2 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 150 ms 31116 KB Output is correct
10 Correct 13 ms 7684 KB Output is correct
11 Correct 69 ms 19172 KB Output is correct
12 Correct 18 ms 9052 KB Output is correct
13 Correct 44 ms 14456 KB Output is correct
14 Correct 3 ms 5076 KB Output is correct
15 Correct 4 ms 5332 KB Output is correct
16 Correct 183 ms 29240 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 2 ms 4948 KB Output is correct
21 Correct 2 ms 4900 KB Output is correct
22 Correct 2 ms 4948 KB Output is correct
23 Correct 487 ms 66296 KB Output is correct
24 Correct 2 ms 4948 KB Output is correct
25 Correct 4 ms 5332 KB Output is correct
26 Correct 5 ms 5704 KB Output is correct
27 Correct 6 ms 5844 KB Output is correct
28 Correct 168 ms 30544 KB Output is correct
29 Correct 241 ms 42044 KB Output is correct
30 Correct 384 ms 56708 KB Output is correct
31 Correct 524 ms 65444 KB Output is correct
32 Correct 2 ms 4948 KB Output is correct
33 Correct 2 ms 4948 KB Output is correct
34 Correct 2 ms 4948 KB Output is correct
35 Correct 2 ms 4948 KB Output is correct
36 Correct 2 ms 4948 KB Output is correct
37 Correct 2 ms 4948 KB Output is correct
38 Correct 2 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 5332 KB Output is correct
44 Correct 5 ms 5520 KB Output is correct
45 Correct 165 ms 29708 KB Output is correct
46 Correct 266 ms 41564 KB Output is correct
47 Correct 285 ms 41340 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4988 KB Output is correct
2 Correct 2 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 2 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 150 ms 31116 KB Output is correct
10 Correct 13 ms 7684 KB Output is correct
11 Correct 69 ms 19172 KB Output is correct
12 Correct 18 ms 9052 KB Output is correct
13 Correct 44 ms 14456 KB Output is correct
14 Correct 3 ms 5076 KB Output is correct
15 Correct 4 ms 5332 KB Output is correct
16 Correct 183 ms 29240 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 2 ms 4948 KB Output is correct
21 Correct 2 ms 4900 KB Output is correct
22 Correct 2 ms 4948 KB Output is correct
23 Correct 487 ms 66296 KB Output is correct
24 Correct 2 ms 4948 KB Output is correct
25 Correct 4 ms 5332 KB Output is correct
26 Correct 5 ms 5704 KB Output is correct
27 Correct 6 ms 5844 KB Output is correct
28 Correct 168 ms 30544 KB Output is correct
29 Correct 241 ms 42044 KB Output is correct
30 Correct 384 ms 56708 KB Output is correct
31 Correct 524 ms 65444 KB Output is correct
32 Correct 2 ms 4948 KB Output is correct
33 Correct 2 ms 4948 KB Output is correct
34 Correct 2 ms 4948 KB Output is correct
35 Correct 2 ms 4948 KB Output is correct
36 Correct 2 ms 4948 KB Output is correct
37 Correct 2 ms 4948 KB Output is correct
38 Correct 2 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 5332 KB Output is correct
44 Correct 5 ms 5520 KB Output is correct
45 Correct 165 ms 29708 KB Output is correct
46 Correct 266 ms 41564 KB Output is correct
47 Correct 285 ms 41340 KB Output is correct
48 Correct 2 ms 4948 KB Output is correct
49 Correct 3 ms 4948 KB Output is correct
50 Runtime error 6 ms 9940 KB Execution killed with signal 6
51 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4988 KB Output is correct
2 Correct 2 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 2 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 150 ms 31116 KB Output is correct
10 Correct 13 ms 7684 KB Output is correct
11 Correct 69 ms 19172 KB Output is correct
12 Correct 18 ms 9052 KB Output is correct
13 Correct 44 ms 14456 KB Output is correct
14 Correct 3 ms 5076 KB Output is correct
15 Correct 4 ms 5332 KB Output is correct
16 Correct 183 ms 29240 KB Output is correct
17 Correct 2 ms 4884 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 455 ms 58852 KB Output is correct
21 Correct 425 ms 56816 KB Output is correct
22 Correct 468 ms 55752 KB Output is correct
23 Correct 362 ms 47768 KB Output is correct
24 Correct 179 ms 22096 KB Output is correct
25 Correct 339 ms 41436 KB Output is correct
26 Correct 290 ms 41444 KB Output is correct
27 Runtime error 137 ms 44972 KB Execution killed with signal 6
28 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4988 KB Output is correct
2 Correct 2 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 2 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 150 ms 31116 KB Output is correct
10 Correct 13 ms 7684 KB Output is correct
11 Correct 69 ms 19172 KB Output is correct
12 Correct 18 ms 9052 KB Output is correct
13 Correct 44 ms 14456 KB Output is correct
14 Correct 3 ms 5076 KB Output is correct
15 Correct 4 ms 5332 KB Output is correct
16 Correct 183 ms 29240 KB Output is correct
17 Correct 372 ms 58648 KB Output is correct
18 Runtime error 203 ms 64132 KB Execution killed with signal 6
19 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4988 KB Output is correct
2 Correct 2 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 2 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 150 ms 31116 KB Output is correct
10 Correct 13 ms 7684 KB Output is correct
11 Correct 69 ms 19172 KB Output is correct
12 Correct 18 ms 9052 KB Output is correct
13 Correct 44 ms 14456 KB Output is correct
14 Correct 3 ms 5076 KB Output is correct
15 Correct 4 ms 5332 KB Output is correct
16 Correct 183 ms 29240 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 2 ms 4948 KB Output is correct
21 Correct 2 ms 4900 KB Output is correct
22 Correct 2 ms 4948 KB Output is correct
23 Correct 487 ms 66296 KB Output is correct
24 Correct 2 ms 4948 KB Output is correct
25 Correct 4 ms 5332 KB Output is correct
26 Correct 5 ms 5704 KB Output is correct
27 Correct 6 ms 5844 KB Output is correct
28 Correct 168 ms 30544 KB Output is correct
29 Correct 241 ms 42044 KB Output is correct
30 Correct 384 ms 56708 KB Output is correct
31 Correct 524 ms 65444 KB Output is correct
32 Correct 2 ms 4948 KB Output is correct
33 Correct 2 ms 4948 KB Output is correct
34 Correct 2 ms 4948 KB Output is correct
35 Correct 2 ms 4948 KB Output is correct
36 Correct 2 ms 4948 KB Output is correct
37 Correct 2 ms 4948 KB Output is correct
38 Correct 2 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 5332 KB Output is correct
44 Correct 5 ms 5520 KB Output is correct
45 Correct 165 ms 29708 KB Output is correct
46 Correct 266 ms 41564 KB Output is correct
47 Correct 285 ms 41340 KB Output is correct
48 Correct 2 ms 4948 KB Output is correct
49 Correct 3 ms 4948 KB Output is correct
50 Runtime error 6 ms 9940 KB Execution killed with signal 6
51 Halted 0 ms 0 KB -