oj.uz

Submission #384645

# Submission time Handle Problem Language Result Execution time Memory
384645 2021-04-02T00:08:41 Z timmyfeng Hamburg Steak (JOI20_hamburg) C++17
15 / 100
 231 ms 13004 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 200000, X = 1000000000;

vector<array<int, 2>> ans;
array<int, 4> rect[N];
bool tested[N];
int n, k;

void print() {
    while ((int) ans.size() < k) {
        ans.push_back(ans.back());
    }
    for (auto [x, y] : ans) {
        cout << x << " " << y << "\n";
    }
    exit(0);
}

void solve() {
    if (count(tested, tested + n, false) == 0) {
        while ((int) ans.size() < k) {
            ans.push_back(ans.back());
        }
        for (auto [x, y] : ans) {
            cout << x << " " << y << "\n";
        }
        exit(0);
    } else if ((int) ans.size() == k) {
        return;
    }

    int x1 = X, x2 = 0, y1 = X, y2 = 0;
    for (int i = 0; i < n; ++i) {
        auto [l, d, r, u] = rect[i];
        if (!tested[i]) {
            x1 = min(x1, r);
            x2 = max(x2, l);
            y1 = min(y1, u);
            y2 = max(y2, d);
        }
    }

    for (auto x : {x1, x2}) {
        for (auto y : {y1, y2}) {
            ans.push_back({x, y});
            vector<int> undo;
            for (int i = 0; i < n; ++i) {
                auto [l, d, r, u] = rect[i];
                if (!tested[i] && l <= x && x <= r && d <= y && y <= u) {
                    undo.push_back(i);
                    tested[i] = true;
                }
            }

            solve();

            for (auto i : undo) {
                tested[i] = false;
            }
            ans.pop_back();
        }
    }
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    cin >> n >> k;

    for (int i = 0; i < n; ++i) {
        for (auto &j : rect[i]) {
            cin >> j;
        }
    }

    solve();
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 492 KB Output is correct
2 Correct 2 ms 492 KB Output is correct
3 Correct 2 ms 492 KB Output is correct
4 Correct 2 ms 492 KB Output is correct

Subtask #2
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 492 KB Output is correct
2 Correct 2 ms 492 KB Output is correct
3 Correct 2 ms 492 KB Output is correct
4 Correct 2 ms 492 KB Output is correct

Subtask #3
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 492 KB Output is correct
2 Correct 2 ms 492 KB Output is correct
3 Correct 2 ms 492 KB Output is correct
4 Correct 2 ms 492 KB Output is correct
5 Correct 2 ms 492 KB Output is correct
6 Correct 2 ms 492 KB Output is correct
7 Correct 2 ms 492 KB Output is correct
8 Correct 2 ms 492 KB Output is correct
9 Correct 3 ms 492 KB Output is correct
10 Correct 3 ms 492 KB Output is correct
11 Correct 2 ms 492 KB Output is correct
12 Correct 3 ms 492 KB Output is correct

Subtask #4
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 492 KB Output is correct
2 Correct 2 ms 492 KB Output is correct
3 Correct 2 ms 492 KB Output is correct
4 Correct 3 ms 492 KB Output is correct
5 Correct 2 ms 492 KB Output is correct
6 Correct 2 ms 492 KB Output is correct
7 Correct 2 ms 492 KB Output is correct
8 Correct 2 ms 492 KB Output is correct
9 Correct 3 ms 492 KB Output is correct
10 Correct 3 ms 492 KB Output is correct
11 Correct 3 ms 492 KB Output is correct
12 Correct 3 ms 492 KB Output is correct
13 Correct 7 ms 492 KB Output is correct
14 Incorrect 7 ms 492 KB Unexpected end of file - int32 expected
15 Halted 0 ms 0 KB -

Subtask #5
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 492 KB Output is correct
2 Correct 2 ms 492 KB Output is correct
3 Correct 2 ms 492 KB Output is correct
4 Correct 2 ms 492 KB Output is correct
5 Correct 100 ms 12652 KB Output is correct
6 Correct 99 ms 12524 KB Output is correct
7 Correct 99 ms 12524 KB Output is correct
8 Correct 98 ms 12524 KB Output is correct

Subtask #6
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 492 KB Output is correct
2 Correct 2 ms 492 KB Output is correct
3 Correct 2 ms 492 KB Output is correct
4 Correct 2 ms 492 KB Output is correct
5 Correct 106 ms 12652 KB Output is correct
6 Correct 109 ms 13004 KB Output is correct
7 Correct 103 ms 12652 KB Output is correct
8 Correct 113 ms 12748 KB Output is correct

Subtask #7
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 492 KB Output is correct
2 Correct 2 ms 492 KB Output is correct
3 Correct 2 ms 492 KB Output is correct
4 Correct 2 ms 492 KB Output is correct
5 Correct 2 ms 492 KB Output is correct
6 Correct 2 ms 492 KB Output is correct
7 Correct 2 ms 492 KB Output is correct
8 Correct 2 ms 492 KB Output is correct
9 Correct 3 ms 492 KB Output is correct
10 Correct 3 ms 492 KB Output is correct
11 Correct 2 ms 492 KB Output is correct
12 Correct 3 ms 492 KB Output is correct
13 Correct 105 ms 12652 KB Output is correct
14 Correct 107 ms 12524 KB Output is correct
15 Correct 103 ms 12652 KB Output is correct
16 Correct 102 ms 12540 KB Output is correct
17 Correct 104 ms 12652 KB Output is correct
18 Correct 102 ms 12512 KB Output is correct
19 Correct 106 ms 12652 KB Output is correct
20 Correct 113 ms 12524 KB Output is correct
21 Correct 231 ms 12760 KB Output is correct
22 Correct 170 ms 12572 KB Output is correct
23 Correct 144 ms 12680 KB Output is correct
24 Correct 162 ms 12736 KB Output is correct

Subtask #8
0 / 79.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 492 KB Output is correct
2 Correct 2 ms 492 KB Output is correct
3 Correct 2 ms 492 KB Output is correct
4 Correct 3 ms 492 KB Output is correct
5 Correct 2 ms 492 KB Output is correct
6 Correct 2 ms 492 KB Output is correct
7 Correct 2 ms 492 KB Output is correct
8 Correct 2 ms 492 KB Output is correct
9 Correct 3 ms 492 KB Output is correct
10 Correct 3 ms 492 KB Output is correct
11 Correct 3 ms 492 KB Output is correct
12 Correct 3 ms 492 KB Output is correct
13 Correct 7 ms 492 KB Output is correct
14 Incorrect 7 ms 492 KB Unexpected end of file - int32 expected
15 Halted 0 ms 0 KB -