oj.uz

Submission #593785

# Submission time Handle Problem Language Result Execution time Memory
593785 2022-07-11T15:20:00 Z SlavicG Fountain Parks (IOI21_parks) C++17
5 / 100
 208 ms 53152 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 v: bruh) {
        if(sz(v) >= 2) {
            assert(sz(v) == 2);
            if(uni(v[0], v[1])) {
                u.push_back(v[0]);
                v.push_back(v[1]);
                a.push_back(3);
                b.push_back(y[v[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 5728 KB Output is correct
2 Correct 4 ms 5716 KB Output is correct
3 Correct 4 ms 5676 KB Output is correct
4 Correct 5 ms 5716 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 4 ms 5716 KB Output is correct
9 Correct 176 ms 24120 KB Output is correct
10 Correct 18 ms 7676 KB Output is correct
11 Correct 75 ms 15604 KB Output is correct
12 Correct 19 ms 8540 KB Output is correct
13 Correct 38 ms 12616 KB Output is correct
14 Correct 4 ms 5900 KB Output is correct
15 Correct 5 ms 6012 KB Output is correct
16 Correct 193 ms 23740 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5728 KB Output is correct
2 Correct 4 ms 5716 KB Output is correct
3 Correct 4 ms 5676 KB Output is correct
4 Correct 5 ms 5716 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 4 ms 5716 KB Output is correct
9 Correct 176 ms 24120 KB Output is correct
10 Correct 18 ms 7676 KB Output is correct
11 Correct 75 ms 15604 KB Output is correct
12 Correct 19 ms 8540 KB Output is correct
13 Correct 38 ms 12616 KB Output is correct
14 Correct 4 ms 5900 KB Output is correct
15 Correct 5 ms 6012 KB Output is correct
16 Correct 193 ms 23740 KB Output is correct
17 Incorrect 3 ms 5716 KB Wrong answer detected in grader
18 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5728 KB Output is correct
2 Correct 4 ms 5716 KB Output is correct
3 Correct 4 ms 5676 KB Output is correct
4 Correct 5 ms 5716 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 4 ms 5716 KB Output is correct
9 Correct 176 ms 24120 KB Output is correct
10 Correct 18 ms 7676 KB Output is correct
11 Correct 75 ms 15604 KB Output is correct
12 Correct 19 ms 8540 KB Output is correct
13 Correct 38 ms 12616 KB Output is correct
14 Correct 4 ms 5900 KB Output is correct
15 Correct 5 ms 6012 KB Output is correct
16 Correct 193 ms 23740 KB Output is correct
17 Incorrect 3 ms 5716 KB Wrong answer detected in grader
18 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5728 KB Output is correct
2 Correct 4 ms 5716 KB Output is correct
3 Correct 4 ms 5676 KB Output is correct
4 Correct 5 ms 5716 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 4 ms 5716 KB Output is correct
9 Correct 176 ms 24120 KB Output is correct
10 Correct 18 ms 7676 KB Output is correct
11 Correct 75 ms 15604 KB Output is correct
12 Correct 19 ms 8540 KB Output is correct
13 Correct 38 ms 12616 KB Output is correct
14 Correct 4 ms 5900 KB Output is correct
15 Correct 5 ms 6012 KB Output is correct
16 Correct 193 ms 23740 KB Output is correct
17 Incorrect 4 ms 5716 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 5728 KB Output is correct
2 Correct 4 ms 5716 KB Output is correct
3 Correct 4 ms 5676 KB Output is correct
4 Correct 5 ms 5716 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 4 ms 5716 KB Output is correct
9 Correct 176 ms 24120 KB Output is correct
10 Correct 18 ms 7676 KB Output is correct
11 Correct 75 ms 15604 KB Output is correct
12 Correct 19 ms 8540 KB Output is correct
13 Correct 38 ms 12616 KB Output is correct
14 Correct 4 ms 5900 KB Output is correct
15 Correct 5 ms 6012 KB Output is correct
16 Correct 193 ms 23740 KB Output is correct
17 Runtime error 208 ms 53152 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 5728 KB Output is correct
2 Correct 4 ms 5716 KB Output is correct
3 Correct 4 ms 5676 KB Output is correct
4 Correct 5 ms 5716 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 4 ms 5716 KB Output is correct
9 Correct 176 ms 24120 KB Output is correct
10 Correct 18 ms 7676 KB Output is correct
11 Correct 75 ms 15604 KB Output is correct
12 Correct 19 ms 8540 KB Output is correct
13 Correct 38 ms 12616 KB Output is correct
14 Correct 4 ms 5900 KB Output is correct
15 Correct 5 ms 6012 KB Output is correct
16 Correct 193 ms 23740 KB Output is correct
17 Incorrect 3 ms 5716 KB Wrong answer detected in grader
18 Halted 0 ms 0 KB -