oj.uz

Submission #796346

# Submission time Handle Problem Language Result Execution time Memory
796346 2023-07-28T10:03:13 Z t6twotwo Fountain Parks (IOI21_parks) C++17
30 / 100
 106 ms 29416 KB 
#include "parks.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
struct dsu {
    int n;
    vector<int> p, s;
    dsu(int n) : n(n), p(n), s(n, 1) {
        iota(p.begin(), p.end(), 0);
    }
    int find(int x) {
        return x == p[x] ? x : p[x] = find(p[x]);
    }
    int size(int x) {
        return s[find(x)];
    }
    bool same(int x, int y) {
        return find(x) == find(y);
    }
    bool unite(int x, int y) {
        x = find(x);
        y = find(y);
        if (x == y) {
            return 0;
        }
        if (s[x] > s[y]) {
            swap(x, y);
        }
        p[x] = y;
        s[y] += s[x];
        return 1;
    }
};
constexpr int A = 200000;
int construct_roads(vector<int> X, vector<int> Y) {
    int N = X.size();
    vector f(7, vector(A + 3, -1));
    for (int i = 0; i < N; i++) {
        f[X[i]][Y[i]] = i;
    }
    dsu uf(N);
    vector<int> u, v, a, b, m(A + 1, -1), l(A + 1, -1), r(A + 1, -1);
    for (int y = 2; y <= A; y += 2) {
        for (int x = 2; x <= 6; x += 2) {
            if (f[x][y] != -1 && f[x][y + 2] != -1) {
                if (x == 4) {
                    m[y + 1] = u.size();
                }
                u.push_back(f[x][y]);
                v.push_back(f[x][y + 2]);
                a.push_back(x == 2 ? 1 : 7);
                b.push_back(y + 1);
                uf.unite(f[x][y], f[x][y + 2]);
            }
            if (x != 6 && f[x][y] != -1 && f[x + 2][y] != -1) {
                if (x == 2 && l[y - 2] == -1) {
                    l[y] = u.size();
                    u.push_back(f[x][y]);
                    v.push_back(f[x + 2][y]);
                    a.push_back(3);
                    b.push_back(-1);
                    uf.unite(f[x][y], f[x + 2][y]);
                }
                if (x == 4 && r[y - 2] == -1) {
                    r[y] = u.size();
                    u.push_back(f[x][y]);
                    v.push_back(f[x + 2][y]);
                    a.push_back(5);
                    b.push_back(-1);
                    uf.unite(f[x][y], f[x + 2][y]);
                }
            }
        }
    }
    if (uf.size(0) != N) {
        return 0;
    }
    vector<int> q(A, -1), s(A, -1), t(A, -1);
    for (int i = 1; i <= A; i++) {
        if (i % 2 == 1 && m[i] != -1) {
            if (s[i - 1] != 1) {
                a[m[i]] = 3;
                q[i] = 0;
            } else {
                assert(t[i - 1] != 1);
                a[m[i]] = 5;
                q[i] = 1;
            }
        }
        if (i % 2 == 0) {
            if (l[i] != -1) {
                if (q[i - 1] == 0) {
                    b[l[i]] = i + 1;
                    s[i] = 1;
                } else {
                    b[l[i]] = i - 1;
                    s[i] = 0;
                }
            }
            if (r[i] != -1) {
                if (q[i - 1] == 1) {
                    b[r[i]] = i + 1;
                    t[i] = 1;
                } else {
                    b[r[i]] = i - 1;
                    t[i] = 0;
                }
            }
        }
    }
    build(u, v, a, b);
    return 1;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 10436 KB Output is correct
2 Correct 6 ms 10436 KB Output is correct
3 Correct 4 ms 8132 KB Output is correct
4 Correct 5 ms 10496 KB Output is correct
5 Correct 5 ms 10384 KB Output is correct
6 Correct 4 ms 8132 KB Output is correct
7 Correct 3 ms 8132 KB Output is correct
8 Correct 4 ms 8132 KB Output is correct
9 Correct 48 ms 17852 KB Output is correct
10 Correct 8 ms 11204 KB Output is correct
11 Correct 30 ms 14416 KB Output is correct
12 Correct 11 ms 11580 KB Output is correct
13 Correct 10 ms 10436 KB Output is correct
14 Correct 4 ms 8132 KB Output is correct
15 Correct 4 ms 8132 KB Output is correct
16 Correct 44 ms 17840 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 10436 KB Output is correct
2 Correct 6 ms 10436 KB Output is correct
3 Correct 4 ms 8132 KB Output is correct
4 Correct 5 ms 10496 KB Output is correct
5 Correct 5 ms 10384 KB Output is correct
6 Correct 4 ms 8132 KB Output is correct
7 Correct 3 ms 8132 KB Output is correct
8 Correct 4 ms 8132 KB Output is correct
9 Correct 48 ms 17852 KB Output is correct
10 Correct 8 ms 11204 KB Output is correct
11 Correct 30 ms 14416 KB Output is correct
12 Correct 11 ms 11580 KB Output is correct
13 Correct 10 ms 10436 KB Output is correct
14 Correct 4 ms 8132 KB Output is correct
15 Correct 4 ms 8132 KB Output is correct
16 Correct 44 ms 17840 KB Output is correct
17 Correct 5 ms 10396 KB Output is correct
18 Correct 5 ms 10436 KB Output is correct
19 Correct 5 ms 10436 KB Output is correct
20 Correct 5 ms 10436 KB Output is correct
21 Correct 5 ms 8132 KB Output is correct
22 Correct 5 ms 10436 KB Output is correct
23 Correct 98 ms 27156 KB Output is correct
24 Correct 5 ms 10436 KB Output is correct
25 Correct 5 ms 10564 KB Output is correct
26 Correct 4 ms 8260 KB Output is correct
27 Correct 4 ms 8388 KB Output is correct
28 Correct 40 ms 17440 KB Output is correct
29 Correct 74 ms 20956 KB Output is correct
30 Correct 79 ms 24060 KB Output is correct
31 Correct 99 ms 27196 KB Output is correct
32 Correct 4 ms 10436 KB Output is correct
33 Correct 6 ms 10436 KB Output is correct
34 Correct 6 ms 10436 KB Output is correct
35 Correct 3 ms 8132 KB Output is correct
36 Correct 4 ms 8132 KB Output is correct
37 Correct 5 ms 10436 KB Output is correct
38 Correct 5 ms 10436 KB Output is correct
39 Correct 4 ms 10436 KB Output is correct
40 Correct 4 ms 10436 KB Output is correct
41 Correct 4 ms 8132 KB Output is correct
42 Correct 4 ms 10492 KB Output is correct
43 Correct 4 ms 8132 KB Output is correct
44 Correct 4 ms 8260 KB Output is correct
45 Correct 44 ms 17844 KB Output is correct
46 Correct 63 ms 21388 KB Output is correct
47 Correct 69 ms 21388 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 10436 KB Output is correct
2 Correct 6 ms 10436 KB Output is correct
3 Correct 4 ms 8132 KB Output is correct
4 Correct 5 ms 10496 KB Output is correct
5 Correct 5 ms 10384 KB Output is correct
6 Correct 4 ms 8132 KB Output is correct
7 Correct 3 ms 8132 KB Output is correct
8 Correct 4 ms 8132 KB Output is correct
9 Correct 48 ms 17852 KB Output is correct
10 Correct 8 ms 11204 KB Output is correct
11 Correct 30 ms 14416 KB Output is correct
12 Correct 11 ms 11580 KB Output is correct
13 Correct 10 ms 10436 KB Output is correct
14 Correct 4 ms 8132 KB Output is correct
15 Correct 4 ms 8132 KB Output is correct
16 Correct 44 ms 17840 KB Output is correct
17 Correct 5 ms 10396 KB Output is correct
18 Correct 5 ms 10436 KB Output is correct
19 Correct 5 ms 10436 KB Output is correct
20 Correct 5 ms 10436 KB Output is correct
21 Correct 5 ms 8132 KB Output is correct
22 Correct 5 ms 10436 KB Output is correct
23 Correct 98 ms 27156 KB Output is correct
24 Correct 5 ms 10436 KB Output is correct
25 Correct 5 ms 10564 KB Output is correct
26 Correct 4 ms 8260 KB Output is correct
27 Correct 4 ms 8388 KB Output is correct
28 Correct 40 ms 17440 KB Output is correct
29 Correct 74 ms 20956 KB Output is correct
30 Correct 79 ms 24060 KB Output is correct
31 Correct 99 ms 27196 KB Output is correct
32 Correct 4 ms 10436 KB Output is correct
33 Correct 6 ms 10436 KB Output is correct
34 Correct 6 ms 10436 KB Output is correct
35 Correct 3 ms 8132 KB Output is correct
36 Correct 4 ms 8132 KB Output is correct
37 Correct 5 ms 10436 KB Output is correct
38 Correct 5 ms 10436 KB Output is correct
39 Correct 4 ms 10436 KB Output is correct
40 Correct 4 ms 10436 KB Output is correct
41 Correct 4 ms 8132 KB Output is correct
42 Correct 4 ms 10492 KB Output is correct
43 Correct 4 ms 8132 KB Output is correct
44 Correct 4 ms 8260 KB Output is correct
45 Correct 44 ms 17844 KB Output is correct
46 Correct 63 ms 21388 KB Output is correct
47 Correct 69 ms 21388 KB Output is correct
48 Correct 7 ms 10436 KB Output is correct
49 Correct 5 ms 10436 KB Output is correct
50 Correct 5 ms 10436 KB Output is correct
51 Correct 5 ms 10392 KB Output is correct
52 Correct 5 ms 10436 KB Output is correct
53 Correct 5 ms 10436 KB Output is correct
54 Correct 7 ms 10396 KB Output is correct
55 Correct 104 ms 29324 KB Output is correct
56 Correct 5 ms 10436 KB Output is correct
57 Correct 6 ms 10692 KB Output is correct
58 Correct 8 ms 11052 KB Output is correct
59 Correct 6 ms 8772 KB Output is correct
60 Correct 52 ms 20540 KB Output is correct
61 Correct 70 ms 23636 KB Output is correct
62 Correct 85 ms 26464 KB Output is correct
63 Correct 106 ms 29416 KB Output is correct
64 Correct 4 ms 8132 KB Output is correct
65 Correct 6 ms 10392 KB Output is correct
66 Correct 4 ms 8132 KB Output is correct
67 Correct 84 ms 26664 KB Output is correct
68 Correct 91 ms 26664 KB Output is correct
69 Correct 84 ms 26536 KB Output is correct
70 Correct 4 ms 8260 KB Output is correct
71 Correct 5 ms 8516 KB Output is correct
72 Correct 43 ms 18592 KB Output is correct
73 Correct 65 ms 22976 KB Output is correct
74 Correct 99 ms 26676 KB Output is correct
75 Correct 95 ms 28344 KB Output is correct
76 Correct 84 ms 26640 KB Output is correct
77 Correct 4 ms 8388 KB Output is correct
78 Correct 5 ms 8644 KB Output is correct
79 Correct 48 ms 18976 KB Output is correct
80 Correct 68 ms 23728 KB Output is correct
81 Correct 95 ms 27644 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 10436 KB Output is correct
2 Correct 6 ms 10436 KB Output is correct
3 Correct 4 ms 8132 KB Output is correct
4 Correct 5 ms 10496 KB Output is correct
5 Correct 5 ms 10384 KB Output is correct
6 Correct 4 ms 8132 KB Output is correct
7 Correct 3 ms 8132 KB Output is correct
8 Correct 4 ms 8132 KB Output is correct
9 Correct 48 ms 17852 KB Output is correct
10 Correct 8 ms 11204 KB Output is correct
11 Correct 30 ms 14416 KB Output is correct
12 Correct 11 ms 11580 KB Output is correct
13 Correct 10 ms 10436 KB Output is correct
14 Correct 4 ms 8132 KB Output is correct
15 Correct 4 ms 8132 KB Output is correct
16 Correct 44 ms 17840 KB Output is correct
17 Runtime error 7 ms 11460 KB Execution killed with signal 11
18 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 10436 KB Output is correct
2 Correct 6 ms 10436 KB Output is correct
3 Correct 4 ms 8132 KB Output is correct
4 Correct 5 ms 10496 KB Output is correct
5 Correct 5 ms 10384 KB Output is correct
6 Correct 4 ms 8132 KB Output is correct
7 Correct 3 ms 8132 KB Output is correct
8 Correct 4 ms 8132 KB Output is correct
9 Correct 48 ms 17852 KB Output is correct
10 Correct 8 ms 11204 KB Output is correct
11 Correct 30 ms 14416 KB Output is correct
12 Correct 11 ms 11580 KB Output is correct
13 Correct 10 ms 10436 KB Output is correct
14 Correct 4 ms 8132 KB Output is correct
15 Correct 4 ms 8132 KB Output is correct
16 Correct 44 ms 17840 KB Output is correct
17 Runtime error 35 ms 17856 KB Execution killed with signal 11
18 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 10436 KB Output is correct
2 Correct 6 ms 10436 KB Output is correct
3 Correct 4 ms 8132 KB Output is correct
4 Correct 5 ms 10496 KB Output is correct
5 Correct 5 ms 10384 KB Output is correct
6 Correct 4 ms 8132 KB Output is correct
7 Correct 3 ms 8132 KB Output is correct
8 Correct 4 ms 8132 KB Output is correct
9 Correct 48 ms 17852 KB Output is correct
10 Correct 8 ms 11204 KB Output is correct
11 Correct 30 ms 14416 KB Output is correct
12 Correct 11 ms 11580 KB Output is correct
13 Correct 10 ms 10436 KB Output is correct
14 Correct 4 ms 8132 KB Output is correct
15 Correct 4 ms 8132 KB Output is correct
16 Correct 44 ms 17840 KB Output is correct
17 Correct 5 ms 10396 KB Output is correct
18 Correct 5 ms 10436 KB Output is correct
19 Correct 5 ms 10436 KB Output is correct
20 Correct 5 ms 10436 KB Output is correct
21 Correct 5 ms 8132 KB Output is correct
22 Correct 5 ms 10436 KB Output is correct
23 Correct 98 ms 27156 KB Output is correct
24 Correct 5 ms 10436 KB Output is correct
25 Correct 5 ms 10564 KB Output is correct
26 Correct 4 ms 8260 KB Output is correct
27 Correct 4 ms 8388 KB Output is correct
28 Correct 40 ms 17440 KB Output is correct
29 Correct 74 ms 20956 KB Output is correct
30 Correct 79 ms 24060 KB Output is correct
31 Correct 99 ms 27196 KB Output is correct
32 Correct 4 ms 10436 KB Output is correct
33 Correct 6 ms 10436 KB Output is correct
34 Correct 6 ms 10436 KB Output is correct
35 Correct 3 ms 8132 KB Output is correct
36 Correct 4 ms 8132 KB Output is correct
37 Correct 5 ms 10436 KB Output is correct
38 Correct 5 ms 10436 KB Output is correct
39 Correct 4 ms 10436 KB Output is correct
40 Correct 4 ms 10436 KB Output is correct
41 Correct 4 ms 8132 KB Output is correct
42 Correct 4 ms 10492 KB Output is correct
43 Correct 4 ms 8132 KB Output is correct
44 Correct 4 ms 8260 KB Output is correct
45 Correct 44 ms 17844 KB Output is correct
46 Correct 63 ms 21388 KB Output is correct
47 Correct 69 ms 21388 KB Output is correct
48 Correct 7 ms 10436 KB Output is correct
49 Correct 5 ms 10436 KB Output is correct
50 Correct 5 ms 10436 KB Output is correct
51 Correct 5 ms 10392 KB Output is correct
52 Correct 5 ms 10436 KB Output is correct
53 Correct 5 ms 10436 KB Output is correct
54 Correct 7 ms 10396 KB Output is correct
55 Correct 104 ms 29324 KB Output is correct
56 Correct 5 ms 10436 KB Output is correct
57 Correct 6 ms 10692 KB Output is correct
58 Correct 8 ms 11052 KB Output is correct
59 Correct 6 ms 8772 KB Output is correct
60 Correct 52 ms 20540 KB Output is correct
61 Correct 70 ms 23636 KB Output is correct
62 Correct 85 ms 26464 KB Output is correct
63 Correct 106 ms 29416 KB Output is correct
64 Correct 4 ms 8132 KB Output is correct
65 Correct 6 ms 10392 KB Output is correct
66 Correct 4 ms 8132 KB Output is correct
67 Correct 84 ms 26664 KB Output is correct
68 Correct 91 ms 26664 KB Output is correct
69 Correct 84 ms 26536 KB Output is correct
70 Correct 4 ms 8260 KB Output is correct
71 Correct 5 ms 8516 KB Output is correct
72 Correct 43 ms 18592 KB Output is correct
73 Correct 65 ms 22976 KB Output is correct
74 Correct 99 ms 26676 KB Output is correct
75 Correct 95 ms 28344 KB Output is correct
76 Correct 84 ms 26640 KB Output is correct
77 Correct 4 ms 8388 KB Output is correct
78 Correct 5 ms 8644 KB Output is correct
79 Correct 48 ms 18976 KB Output is correct
80 Correct 68 ms 23728 KB Output is correct
81 Correct 95 ms 27644 KB Output is correct
82 Runtime error 7 ms 11460 KB Execution killed with signal 11
83 Halted 0 ms 0 KB -