oj.uz

Submission #593791

# Submission time Handle Problem Language Result Execution time Memory
593791 2022-07-11T15:23:30 Z SlavicG Fountain Parks (IOI21_parks) C++17
15 / 100
 396 ms 53600 KB 
#include "parks.h"
#include "bits/stdc++.h"
using namespace std;

#define         sz(a)     (int)a.size()
#define        all(a)     a.begin(),a.end()
#define    forn(i, n)     for(int i = 0; i < n; ++i)

const int N = 2e5 + 10;
int p[N];
int get(int a) {
    return p[a] = (a == p[a] ? a : get(p[a]));
}
bool uni(int a, int b) {
    a = get(a), b = get(b);
    if(a == b) return false;
    p[a] = b;
    return true;
}

int construct_roads(vector<int> x, vector<int> y) {
    forn(i, N) p[i] = i;
    if (x.size() == 1) {
        build({}, {}, {}, {});
        return 1;
    }
    vector<int> u, v, a, b;
    vector<pair<int, int>> points;
    map<pair<int, int>, int> idx;
    vector<int> bruh[N];
    for(int i = 0; i < sz(x); ++i) {
        bruh[y[i]].push_back(i);
        idx[{x[i], y[i]}] = i;
        points.push_back({x[i], y[i]});
    }
    sort(all(points));
    for(int i = 0; i + 1 < sz(points); ++i) {
        if(points[i].first == points[i + 1].first) {
            if(points[i].second + 2 != points[i + 1].second) continue;
            if(points[i].first == 2 && uni(idx[points[i]], idx[points[i + 1]])) {
                u.push_back(idx[points[i]]), v.push_back(idx[points[i + 1]]);
                a.push_back(points[i].first - 1);
                b.push_back(points[i].second + 1);
            } else if(points[i].first == 4 && uni(idx[points[i]], idx[points[i + 1]])) {
                u.push_back(idx[points[i]]), v.push_back(idx[points[i + 1]]);
                a.push_back(points[i].first + 1);
                b.push_back(points[i].second + 1);
            }
        }
    }
    for(auto c: bruh) {
        if(sz(c) >= 2) {
            assert(sz(c) == 2);
            if(uni(c[0], c[1])) {
                u.push_back(c[0]);
                v.push_back(c[1]);
                a.push_back(3);
                b.push_back(y[c[0]] - 1);
            }
        }
    }
    for(int i = 1; i < sz(x); ++i) {
        if(get(i) != get(0)) return 0;
    }
    build(u, v, a, b);
    return 1;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5716 KB Output is correct
2 Correct 4 ms 5768 KB Output is correct
3 Correct 4 ms 5716 KB Output is correct
4 Correct 3 ms 5688 KB Output is correct
5 Correct 3 ms 5716 KB Output is correct
6 Correct 4 ms 5716 KB Output is correct
7 Correct 4 ms 5716 KB Output is correct
8 Correct 3 ms 5716 KB Output is correct
9 Correct 179 ms 24464 KB Output is correct
10 Correct 13 ms 7792 KB Output is correct
11 Correct 64 ms 15824 KB Output is correct
12 Correct 18 ms 8660 KB Output is correct
13 Correct 40 ms 12804 KB Output is correct
14 Correct 5 ms 5844 KB Output is correct
15 Correct 5 ms 5972 KB Output is correct
16 Correct 173 ms 24024 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5716 KB Output is correct
2 Correct 4 ms 5768 KB Output is correct
3 Correct 4 ms 5716 KB Output is correct
4 Correct 3 ms 5688 KB Output is correct
5 Correct 3 ms 5716 KB Output is correct
6 Correct 4 ms 5716 KB Output is correct
7 Correct 4 ms 5716 KB Output is correct
8 Correct 3 ms 5716 KB Output is correct
9 Correct 179 ms 24464 KB Output is correct
10 Correct 13 ms 7792 KB Output is correct
11 Correct 64 ms 15824 KB Output is correct
12 Correct 18 ms 8660 KB Output is correct
13 Correct 40 ms 12804 KB Output is correct
14 Correct 5 ms 5844 KB Output is correct
15 Correct 5 ms 5972 KB Output is correct
16 Correct 173 ms 24024 KB Output is correct
17 Correct 3 ms 5692 KB Output is correct
18 Correct 3 ms 5716 KB Output is correct
19 Correct 4 ms 5716 KB Output is correct
20 Correct 3 ms 5716 KB Output is correct
21 Correct 4 ms 5716 KB Output is correct
22 Correct 3 ms 5716 KB Output is correct
23 Correct 396 ms 40288 KB Output is correct
24 Correct 3 ms 5716 KB Output is correct
25 Correct 5 ms 5972 KB Output is correct
26 Correct 5 ms 6100 KB Output is correct
27 Correct 6 ms 6228 KB Output is correct
28 Correct 143 ms 19764 KB Output is correct
29 Correct 199 ms 26068 KB Output is correct
30 Correct 297 ms 34012 KB Output is correct
31 Correct 381 ms 40184 KB Output is correct
32 Correct 4 ms 5716 KB Output is correct
33 Correct 4 ms 5716 KB Output is correct
34 Correct 4 ms 5716 KB Output is correct
35 Correct 3 ms 5716 KB Output is correct
36 Correct 4 ms 5716 KB Output is correct
37 Correct 3 ms 5716 KB Output is correct
38 Correct 3 ms 5692 KB Output is correct
39 Correct 4 ms 5716 KB Output is correct
40 Correct 4 ms 5716 KB Output is correct
41 Correct 3 ms 5716 KB Output is correct
42 Correct 4 ms 5716 KB Output is correct
43 Correct 5 ms 5972 KB Output is correct
44 Correct 6 ms 6232 KB Output is correct
45 Correct 157 ms 22940 KB Output is correct
46 Correct 260 ms 31636 KB Output is correct
47 Correct 254 ms 31620 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5716 KB Output is correct
2 Correct 4 ms 5768 KB Output is correct
3 Correct 4 ms 5716 KB Output is correct
4 Correct 3 ms 5688 KB Output is correct
5 Correct 3 ms 5716 KB Output is correct
6 Correct 4 ms 5716 KB Output is correct
7 Correct 4 ms 5716 KB Output is correct
8 Correct 3 ms 5716 KB Output is correct
9 Correct 179 ms 24464 KB Output is correct
10 Correct 13 ms 7792 KB Output is correct
11 Correct 64 ms 15824 KB Output is correct
12 Correct 18 ms 8660 KB Output is correct
13 Correct 40 ms 12804 KB Output is correct
14 Correct 5 ms 5844 KB Output is correct
15 Correct 5 ms 5972 KB Output is correct
16 Correct 173 ms 24024 KB Output is correct
17 Correct 3 ms 5692 KB Output is correct
18 Correct 3 ms 5716 KB Output is correct
19 Correct 4 ms 5716 KB Output is correct
20 Correct 3 ms 5716 KB Output is correct
21 Correct 4 ms 5716 KB Output is correct
22 Correct 3 ms 5716 KB Output is correct
23 Correct 396 ms 40288 KB Output is correct
24 Correct 3 ms 5716 KB Output is correct
25 Correct 5 ms 5972 KB Output is correct
26 Correct 5 ms 6100 KB Output is correct
27 Correct 6 ms 6228 KB Output is correct
28 Correct 143 ms 19764 KB Output is correct
29 Correct 199 ms 26068 KB Output is correct
30 Correct 297 ms 34012 KB Output is correct
31 Correct 381 ms 40184 KB Output is correct
32 Correct 4 ms 5716 KB Output is correct
33 Correct 4 ms 5716 KB Output is correct
34 Correct 4 ms 5716 KB Output is correct
35 Correct 3 ms 5716 KB Output is correct
36 Correct 4 ms 5716 KB Output is correct
37 Correct 3 ms 5716 KB Output is correct
38 Correct 3 ms 5692 KB Output is correct
39 Correct 4 ms 5716 KB Output is correct
40 Correct 4 ms 5716 KB Output is correct
41 Correct 3 ms 5716 KB Output is correct
42 Correct 4 ms 5716 KB Output is correct
43 Correct 5 ms 5972 KB Output is correct
44 Correct 6 ms 6232 KB Output is correct
45 Correct 157 ms 22940 KB Output is correct
46 Correct 260 ms 31636 KB Output is correct
47 Correct 254 ms 31620 KB Output is correct
48 Incorrect 4 ms 5716 KB Tree (a[1], b[1]) = (3, 1) is not adjacent to edge between u[1]=0 @(6, 2) and v[1]=1 @(4, 2)
49 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5716 KB Output is correct
2 Correct 4 ms 5768 KB Output is correct
3 Correct 4 ms 5716 KB Output is correct
4 Correct 3 ms 5688 KB Output is correct
5 Correct 3 ms 5716 KB Output is correct
6 Correct 4 ms 5716 KB Output is correct
7 Correct 4 ms 5716 KB Output is correct
8 Correct 3 ms 5716 KB Output is correct
9 Correct 179 ms 24464 KB Output is correct
10 Correct 13 ms 7792 KB Output is correct
11 Correct 64 ms 15824 KB Output is correct
12 Correct 18 ms 8660 KB Output is correct
13 Correct 40 ms 12804 KB Output is correct
14 Correct 5 ms 5844 KB Output is correct
15 Correct 5 ms 5972 KB Output is correct
16 Correct 173 ms 24024 KB Output is correct
17 Incorrect 4 ms 5680 KB Solution announced impossible, but it is possible.
18 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5716 KB Output is correct
2 Correct 4 ms 5768 KB Output is correct
3 Correct 4 ms 5716 KB Output is correct
4 Correct 3 ms 5688 KB Output is correct
5 Correct 3 ms 5716 KB Output is correct
6 Correct 4 ms 5716 KB Output is correct
7 Correct 4 ms 5716 KB Output is correct
8 Correct 3 ms 5716 KB Output is correct
9 Correct 179 ms 24464 KB Output is correct
10 Correct 13 ms 7792 KB Output is correct
11 Correct 64 ms 15824 KB Output is correct
12 Correct 18 ms 8660 KB Output is correct
13 Correct 40 ms 12804 KB Output is correct
14 Correct 5 ms 5844 KB Output is correct
15 Correct 5 ms 5972 KB Output is correct
16 Correct 173 ms 24024 KB Output is correct
17 Runtime error 215 ms 53600 KB Execution killed with signal 6
18 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5716 KB Output is correct
2 Correct 4 ms 5768 KB Output is correct
3 Correct 4 ms 5716 KB Output is correct
4 Correct 3 ms 5688 KB Output is correct
5 Correct 3 ms 5716 KB Output is correct
6 Correct 4 ms 5716 KB Output is correct
7 Correct 4 ms 5716 KB Output is correct
8 Correct 3 ms 5716 KB Output is correct
9 Correct 179 ms 24464 KB Output is correct
10 Correct 13 ms 7792 KB Output is correct
11 Correct 64 ms 15824 KB Output is correct
12 Correct 18 ms 8660 KB Output is correct
13 Correct 40 ms 12804 KB Output is correct
14 Correct 5 ms 5844 KB Output is correct
15 Correct 5 ms 5972 KB Output is correct
16 Correct 173 ms 24024 KB Output is correct
17 Correct 3 ms 5692 KB Output is correct
18 Correct 3 ms 5716 KB Output is correct
19 Correct 4 ms 5716 KB Output is correct
20 Correct 3 ms 5716 KB Output is correct
21 Correct 4 ms 5716 KB Output is correct
22 Correct 3 ms 5716 KB Output is correct
23 Correct 396 ms 40288 KB Output is correct
24 Correct 3 ms 5716 KB Output is correct
25 Correct 5 ms 5972 KB Output is correct
26 Correct 5 ms 6100 KB Output is correct
27 Correct 6 ms 6228 KB Output is correct
28 Correct 143 ms 19764 KB Output is correct
29 Correct 199 ms 26068 KB Output is correct
30 Correct 297 ms 34012 KB Output is correct
31 Correct 381 ms 40184 KB Output is correct
32 Correct 4 ms 5716 KB Output is correct
33 Correct 4 ms 5716 KB Output is correct
34 Correct 4 ms 5716 KB Output is correct
35 Correct 3 ms 5716 KB Output is correct
36 Correct 4 ms 5716 KB Output is correct
37 Correct 3 ms 5716 KB Output is correct
38 Correct 3 ms 5692 KB Output is correct
39 Correct 4 ms 5716 KB Output is correct
40 Correct 4 ms 5716 KB Output is correct
41 Correct 3 ms 5716 KB Output is correct
42 Correct 4 ms 5716 KB Output is correct
43 Correct 5 ms 5972 KB Output is correct
44 Correct 6 ms 6232 KB Output is correct
45 Correct 157 ms 22940 KB Output is correct
46 Correct 260 ms 31636 KB Output is correct
47 Correct 254 ms 31620 KB Output is correct
48 Incorrect 4 ms 5716 KB Tree (a[1], b[1]) = (3, 1) is not adjacent to edge between u[1]=0 @(6, 2) and v[1]=1 @(4, 2)
49 Halted 0 ms 0 KB -