oj.uz

Submission #1092897

# Submission time Handle Problem Language Result Execution time Memory
1092897 2024-09-25T10:24:49 Z Pannda Meetings (JOI19_meetings) C++17
29 / 100
 1055 ms 1672 KB 
#include "meetings.h"

#include <bits/stdc++.h>
using namespace std;

void Solve(int n) {
    mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

    auto work = [&](auto self, vector<int> dom) -> void {
        shuffle(dom.begin(), dom.end(), rng);
        int r = dom.back();
        dom.pop_back();

        vector<vector<int>> branches;
        vector<int> heads;
        for (int u : dom) {
            bool found = false;
            for (int i = 0; !found && i < heads.size(); i++) {
                int get = Query(r, u, heads[i]);
                if (get == r) {
                    // nothing
                } else if (get == u) {
                    heads[i] = u;
                    branches[i].push_back(u);
                    found = true;
                } else {
                    branches[i].push_back(u);
                    found = true;
                }
            }
            if (!found) {
                heads.push_back(u);
                branches.push_back({u});
            }
        }

        for (int u : heads) {
            if (r < u) Bridge(r, u);
            else Bridge(u, r);
        }

        for (vector<int> branch : branches) {
            self(self, branch);
        }
    };

    work(work, [&]() -> vector<int> {
        vector<int> dom(n);
        iota(dom.begin(), dom.end(), 0);
        return dom;
    }());
}

Compilation message

meetings.cpp: In lambda function:
meetings.cpp:18:41: 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; !found && i < heads.size(); i++) {
      |                                       ~~^~~~~~~~~~~~~~
meetings.cpp: In instantiation of 'Solve(int)::<lambda(auto:23, std::vector<int>)> [with auto:23 = Solve(int)::<lambda(auto:23, std::vector<int>)>]':
meetings.cpp:51:8:   required from here
meetings.cpp:18:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 0 ms 344 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 0 ms 344 KB Output is correct
27 Correct 10 ms 600 KB Output is correct
28 Correct 18 ms 600 KB Output is correct
29 Correct 14 ms 600 KB Output is correct
30 Correct 17 ms 600 KB Output is correct
31 Correct 16 ms 600 KB Output is correct
32 Correct 17 ms 600 KB Output is correct
33 Correct 25 ms 600 KB Output is correct
34 Correct 36 ms 860 KB Output is correct
35 Correct 28 ms 728 KB Output is correct
36 Correct 11 ms 344 KB Output is correct
37 Correct 8 ms 344 KB Output is correct
38 Correct 7 ms 344 KB Output is correct
39 Correct 6 ms 344 KB Output is correct

Subtask #4
0 / 71.0

# Verdict Execution time Memory Grader output
1 Incorrect 1055 ms 1672 KB Wrong Answer [2]
2 Halted 0 ms 0 KB -