oj.uz

Submission #648342

# Submission time Handle Problem Language Result Execution time Memory
648342 2022-10-06T07:59:53 Z 406 Hamburg Steak (JOI20_hamburg) C++17
21 / 100
 3000 ms 34376 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 2e5 + 50;
const int M = 2 * N + 5;
int l[N], r[N], u[N], d[N], n, k;
bitset<N> used, full;
vector<pair<int, int>> points;
vector<int> X, Y, cl[M], op[M];

void rec();

inline bool check() {
        return used.count() == 0;
}

inline bool inter(int i, int x, int y) {
        return l[i] <= x && x <= r[i] && d[i] <= y && y <= u[i];
}

inline void add_point(int x, int y) {
        vector<int> change;
        for (int i = used._Find_first(); i < n; i = used._Find_next(i)) {
                if (inter(i, x, y)) {
                        used[i] = false;
                        change.push_back(i);
                }
        }
        if (change.empty())
                return;
        points.emplace_back(x, y);

        rec();

        for (auto cc: change) used[cc] = true;
        points.pop_back();

}

void rec() {
        if (check() && (int) points.size() <= k) {
                for (int i = 0; i < (int) points.size(); i++)
                        cout << X[points[i].first] << ' ' << Y[points[i].second] << '\n';
                for (int i = points.size(); i < k; i++)
                        cout << 1 << ' ' << 1 << '\n';
                exit(0);
        }
        if (points.size() >= k)
                return;

        int minR = 2 * n;
        int minU = 2 * n;
        int maxD = 0;
        int maxL = 0;

        for (int i = used._Find_first(); i < n; i = used._Find_next(i)) {
                minR = min(minR, r[i]);
                maxL = max(maxL, l[i]);

                minU = min(minU, u[i]);
                maxD = max(maxD, d[i]);
        }

        if (maxL <= minR) {
                add_point(minR, minU);
        }
        else if (maxD <= minU) {
                add_point(minR, minU);
        }
        else {
                add_point(minR, minU);
                add_point(minR, maxD);
                add_point(maxL, minU);
                add_point(maxL, maxD);
                if (points.size())
                        return;
                for (int h = minU + 1; h < maxD; h++)
                        add_point(minR, h);
        }
}

signed main() {
        ios::sync_with_stdio(0);
        cin.tie(0);

        cin >> n >> k;
        X.reserve(2 * n), Y.reserve(2 * n);
        for (int i = 0; i < n; i++) {
                cin >> l[i] >> d[i] >> r[i] >> u[i];
                X.push_back(l[i]);
                X.push_back(r[i]);
                Y.push_back(d[i]);
                Y.push_back(u[i]);
        }
        sort(X.begin(), X.end());
        X.resize(unique(X.begin(), X.end()) - X.begin());

        sort(Y.begin(), Y.end());
        Y.resize(unique(Y.begin(), Y.end()) - Y.begin());

        for (int i = 0; i < n; i++) {
                l[i] = lower_bound(X.begin(), X.end(), l[i]) - X.begin();
                r[i] = lower_bound(X.begin(), X.end(), r[i]) - X.begin();

                u[i] = lower_bound(Y.begin(), Y.end(), u[i]) - Y.begin();
                d[i] = lower_bound(Y.begin(), Y.end(), d[i]) - Y.begin();
        }

        for (int i = 0; i < n; i++)
                used[i] = true;

        rec();
        cout << "NO I DID NOT FIND ANYTHING\n";
        return 0;
}

Compilation message

hamburg.cpp: In function 'void rec()':
hamburg.cpp:48:27: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   48 |         if (points.size() >= k)
      |             ~~~~~~~~~~~~~~^~~~

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 19156 KB Output is correct
2 Correct 13 ms 19152 KB Output is correct
3 Correct 11 ms 19196 KB Output is correct
4 Correct 11 ms 19156 KB Output is correct

Subtask #2
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 19204 KB Output is correct
2 Correct 11 ms 19296 KB Output is correct
3 Correct 12 ms 19156 KB Output is correct
4 Correct 12 ms 19156 KB Output is correct

Subtask #3
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 19224 KB Output is correct
2 Correct 13 ms 19156 KB Output is correct
3 Correct 11 ms 19156 KB Output is correct
4 Correct 12 ms 19156 KB Output is correct
5 Correct 11 ms 19156 KB Output is correct
6 Correct 12 ms 19156 KB Output is correct
7 Correct 13 ms 19156 KB Output is correct
8 Correct 12 ms 19156 KB Output is correct
9 Correct 16 ms 19156 KB Output is correct
10 Correct 15 ms 19148 KB Output is correct
11 Correct 14 ms 19156 KB Output is correct
12 Correct 15 ms 19128 KB Output is correct

Subtask #4
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 19156 KB Output is correct
2 Correct 11 ms 19144 KB Output is correct
3 Correct 13 ms 19156 KB Output is correct
4 Correct 11 ms 19156 KB Output is correct
5 Correct 12 ms 19156 KB Output is correct
6 Correct 13 ms 19156 KB Output is correct
7 Correct 11 ms 19156 KB Output is correct
8 Correct 12 ms 19208 KB Output is correct
9 Correct 12 ms 19156 KB Output is correct
10 Correct 13 ms 19156 KB Output is correct
11 Correct 12 ms 19156 KB Output is correct
12 Correct 12 ms 19156 KB Output is correct
13 Correct 19 ms 19156 KB Output is correct
14 Correct 628 ms 19276 KB Output is correct
15 Correct 17 ms 19156 KB Output is correct
16 Correct 14 ms 19156 KB Output is correct
17 Correct 1208 ms 19156 KB Output is correct
18 Correct 15 ms 19156 KB Output is correct
19 Correct 15 ms 19156 KB Output is correct
20 Correct 2715 ms 19284 KB Output is correct
21 Correct 19 ms 19220 KB Output is correct
22 Correct 20 ms 19228 KB Output is correct
23 Correct 1012 ms 19204 KB Output is correct
24 Correct 14 ms 19188 KB Output is correct
25 Correct 13 ms 19148 KB Output is correct
26 Correct 18 ms 19336 KB Output is correct
27 Correct 14 ms 19156 KB Output is correct
28 Correct 13 ms 19156 KB Output is correct
29 Correct 16 ms 19156 KB Output is correct
30 Correct 15 ms 19168 KB Output is correct
31 Correct 495 ms 19204 KB Output is correct
32 Correct 543 ms 19208 KB Output is correct
33 Correct 767 ms 19200 KB Output is correct
34 Correct 280 ms 19156 KB Output is correct
35 Correct 1097 ms 19340 KB Output is correct
36 Correct 1551 ms 19208 KB Output is correct
37 Correct 904 ms 19324 KB Output is correct
38 Correct 1840 ms 19316 KB Output is correct
39 Correct 2089 ms 19204 KB Output is correct
40 Correct 1245 ms 19212 KB Output is correct
41 Correct 110 ms 19212 KB Output is correct
42 Correct 1272 ms 19276 KB Output is correct
43 Correct 1254 ms 19204 KB Output is correct
44 Correct 931 ms 19204 KB Output is correct
45 Correct 14 ms 19156 KB Output is correct
46 Correct 1147 ms 19204 KB Output is correct
47 Correct 2111 ms 19204 KB Output is correct
48 Correct 2918 ms 19196 KB Output is correct
49 Correct 827 ms 19284 KB Output is correct
50 Correct 734 ms 19284 KB Output is correct
51 Correct 1966 ms 19284 KB Output is correct
52 Correct 1294 ms 19280 KB Output is correct
53 Correct 822 ms 19284 KB Output is correct
54 Correct 943 ms 19300 KB Output is correct
55 Correct 1521 ms 19292 KB Output is correct
56 Correct 1473 ms 19260 KB Output is correct
57 Correct 1369 ms 19284 KB Output is correct
58 Correct 1452 ms 19296 KB Output is correct

Subtask #5
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 19156 KB Output is correct
2 Correct 13 ms 19152 KB Output is correct
3 Correct 11 ms 19196 KB Output is correct
4 Correct 11 ms 19156 KB Output is correct
5 Correct 301 ms 26828 KB Output is correct
6 Correct 292 ms 26916 KB Output is correct
7 Correct 287 ms 26956 KB Output is correct
8 Correct 280 ms 26960 KB Output is correct

Subtask #6
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 19204 KB Output is correct
2 Correct 11 ms 19296 KB Output is correct
3 Correct 12 ms 19156 KB Output is correct
4 Correct 12 ms 19156 KB Output is correct
5 Correct 296 ms 26988 KB Output is correct
6 Correct 300 ms 27268 KB Output is correct
7 Correct 289 ms 27048 KB Output is correct
8 Correct 307 ms 27052 KB Output is correct

Subtask #7
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 19224 KB Output is correct
2 Correct 13 ms 19156 KB Output is correct
3 Correct 11 ms 19156 KB Output is correct
4 Correct 12 ms 19156 KB Output is correct
5 Correct 11 ms 19156 KB Output is correct
6 Correct 12 ms 19156 KB Output is correct
7 Correct 13 ms 19156 KB Output is correct
8 Correct 12 ms 19156 KB Output is correct
9 Correct 16 ms 19156 KB Output is correct
10 Correct 15 ms 19148 KB Output is correct
11 Correct 14 ms 19156 KB Output is correct
12 Correct 15 ms 19128 KB Output is correct
13 Correct 302 ms 26912 KB Output is correct
14 Correct 302 ms 26612 KB Output is correct
15 Correct 310 ms 26920 KB Output is correct
16 Correct 292 ms 26908 KB Output is correct
17 Correct 308 ms 26808 KB Output is correct
18 Correct 291 ms 26920 KB Output is correct
19 Correct 294 ms 26784 KB Output is correct
20 Correct 301 ms 26840 KB Output is correct
21 Correct 420 ms 27064 KB Output is correct
22 Correct 347 ms 26876 KB Output is correct
23 Correct 329 ms 26936 KB Output is correct
24 Correct 338 ms 27000 KB Output is correct

Subtask #8
0 / 79.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 19156 KB Output is correct
2 Correct 11 ms 19144 KB Output is correct
3 Correct 13 ms 19156 KB Output is correct
4 Correct 11 ms 19156 KB Output is correct
5 Correct 12 ms 19156 KB Output is correct
6 Correct 13 ms 19156 KB Output is correct
7 Correct 11 ms 19156 KB Output is correct
8 Correct 12 ms 19208 KB Output is correct
9 Correct 12 ms 19156 KB Output is correct
10 Correct 13 ms 19156 KB Output is correct
11 Correct 12 ms 19156 KB Output is correct
12 Correct 12 ms 19156 KB Output is correct
13 Correct 19 ms 19156 KB Output is correct
14 Correct 628 ms 19276 KB Output is correct
15 Correct 17 ms 19156 KB Output is correct
16 Correct 14 ms 19156 KB Output is correct
17 Correct 1208 ms 19156 KB Output is correct
18 Correct 15 ms 19156 KB Output is correct
19 Correct 15 ms 19156 KB Output is correct
20 Correct 2715 ms 19284 KB Output is correct
21 Correct 19 ms 19220 KB Output is correct
22 Correct 20 ms 19228 KB Output is correct
23 Correct 1012 ms 19204 KB Output is correct
24 Correct 14 ms 19188 KB Output is correct
25 Correct 13 ms 19148 KB Output is correct
26 Correct 18 ms 19336 KB Output is correct
27 Correct 14 ms 19156 KB Output is correct
28 Correct 13 ms 19156 KB Output is correct
29 Correct 16 ms 19156 KB Output is correct
30 Correct 15 ms 19168 KB Output is correct
31 Correct 495 ms 19204 KB Output is correct
32 Correct 543 ms 19208 KB Output is correct
33 Correct 767 ms 19200 KB Output is correct
34 Correct 280 ms 19156 KB Output is correct
35 Correct 1097 ms 19340 KB Output is correct
36 Correct 1551 ms 19208 KB Output is correct
37 Correct 904 ms 19324 KB Output is correct
38 Correct 1840 ms 19316 KB Output is correct
39 Correct 2089 ms 19204 KB Output is correct
40 Correct 1245 ms 19212 KB Output is correct
41 Correct 110 ms 19212 KB Output is correct
42 Correct 1272 ms 19276 KB Output is correct
43 Correct 1254 ms 19204 KB Output is correct
44 Correct 931 ms 19204 KB Output is correct
45 Correct 14 ms 19156 KB Output is correct
46 Correct 1147 ms 19204 KB Output is correct
47 Correct 2111 ms 19204 KB Output is correct
48 Correct 2918 ms 19196 KB Output is correct
49 Correct 827 ms 19284 KB Output is correct
50 Correct 734 ms 19284 KB Output is correct
51 Correct 1966 ms 19284 KB Output is correct
52 Correct 1294 ms 19280 KB Output is correct
53 Correct 822 ms 19284 KB Output is correct
54 Correct 943 ms 19300 KB Output is correct
55 Correct 1521 ms 19292 KB Output is correct
56 Correct 1473 ms 19260 KB Output is correct
57 Correct 1369 ms 19284 KB Output is correct
58 Correct 1452 ms 19296 KB Output is correct
59 Correct 303 ms 34132 KB Output is correct
60 Correct 344 ms 34144 KB Output is correct
61 Correct 316 ms 34140 KB Output is correct
62 Correct 296 ms 34132 KB Output is correct
63 Correct 308 ms 34160 KB Output is correct
64 Correct 304 ms 34272 KB Output is correct
65 Correct 302 ms 34128 KB Output is correct
66 Correct 317 ms 34284 KB Output is correct
67 Correct 375 ms 34340 KB Output is correct
68 Correct 346 ms 34156 KB Output is correct
69 Correct 327 ms 34376 KB Output is correct
70 Correct 337 ms 34112 KB Output is correct
71 Correct 710 ms 34308 KB Output is correct
72 Execution timed out 3016 ms 33992 KB Time limit exceeded
73 Halted 0 ms 0 KB -