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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#113708#5668. Cell Nuclei DetectionUFRJ#WA 253ms104340kbC++202.5kb2023-06-19 05:19:582023-06-19 05:20:01

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-06-19 05:20:01]
  • 评测
  • 测评结果:WA
  • 用时:253ms
  • 内存:104340kb
  • [2023-06-19 05:19:58]
  • 提交

answer

#include<bits/stdc++.h>

namespace std {
struct bipartite_matching {
    int N, M, T;
    vector<vector<int>> adj;
    vector<int> match, seen;
    bipartite_matching(int a, int b) : N(a), M(a + b), adj(M), 
            match(M, -1), seen(M, -1), T(0) {}
    void add_edge(int a, int b) {
        assert(0 <= a && a < N && b + N < M && N <= b + N);
        adj[a].push_back(b + N);
    }
    void shuffle_edges() { // useful to break some hairy tests
        mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
        for (auto& cur : adj)
            shuffle(cur.begin(), cur.end(), rng);
    } 
    bool dfs(int cur) {
        if (seen[cur] == T) return false;
        seen[cur] = T;
        for (int nxt : adj[cur]) 
            if (match[nxt] == -1) {
                match[nxt] = cur, match[cur] = nxt;
                return true;
            }
        for (int nxt : adj[cur]) 
            if (dfs(match[nxt])) {
                match[nxt] = cur, match[cur] = nxt;
                return true;
            }
        return false;
    }
    int solve() {
        int res = 0;
        while (true) {
            int cur = 0; ++T;
            for (int i = 0; i < N; ++i) 
                if (match[i] == -1) cur += dfs(i);
            if (cur == 0) break;
            else res += cur;
        }
        return res;
    }
}; }
int main() {
	using namespace std;
	cin.tie(nullptr)->sync_with_stdio(false);
	int T; cin >> T;

	struct rectangle_t {
		int idx;
		int a, c, b, d;
		rectangle_t intersection(rectangle_t r) {
			return {0, max(r.a, a), max(r.c, c), min(r.b, b), min(r.d, d)};
		}
		int get_area() {
			return (b > a && c < d ? (b - a) * (d - c) : 0);
		}
	};

	const int L = 2022;
	
	while (T--) {
		int M, N; cin >> M >> N;
		
		bipartite_matching flower(M, N);
		
		vector<vector<vector<rectangle_t>>> R(L, vector(L, vector<rectangle_t>()));
		for (int i = 0; i < M; ++i) {
			int a, c, b, d; cin >> a >> c >> b >> d;
			R[a][c].push_back({i, a, c, b, d});
		}

		for (int i = 0; i < N; ++i) {
			int a, c, b, d;
			cin >> a >> c >> b >> d;

			rectangle_t box = {i, a, c, b, d};

			for (int ac = a-4; ac <= a+4; ++ac) {
				if (ac < 0) continue;
				for (int bd = b-4; bd <= b+4; ++bd) {
					if (bd < 0) continue;
					for (auto r : R[ac][bd]) {
						auto inter = box.intersection(r);
						if (inter.get_area() * 2 >= r.get_area()) {
							flower.add_edge(i, r.idx);
						}
					}
				}
			}
		}

		cout << flower.solve() << '\n';
	}
}

详细

Test #1:

score: 100
Accepted
time: 64ms
memory: 99112kb

input:

3
2 2
1 1 3 3
3 3 5 5
2 2 4 4
4 4 6 6
2 3
1 1 3 3
3 3 5 5
1 3 3 5
2 1 4 5
3 1 5 3
3 3
1 1 2 2
2 2 3 3
3 3 4 4
1 1 3 3
2 2 4 4
3 3 5 5

output:

0
1
3

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 44ms
memory: 99156kb

input:

3
2 2
1 1 3 3
3 3 5 5
2 2 4 4
4 4 6 6
2 3
1 1 3 3
3 3 5 5
1 3 3 5
2 1 4 5
3 1 5 3
3 3
1 1 2 2
2 2 3 3
3 3 4 4
1 1 3 3
2 2 4 4
3 3 5 5

output:

0
1
3

result:

ok 3 lines

Test #3:

score: -100
Wrong Answer
time: 253ms
memory: 104340kb

input:

5
50000 50000
0 0 4 4
4 0 8 4
8 0 12 4
12 0 16 4
16 0 20 4
20 0 24 4
24 0 28 4
28 0 32 4
32 0 36 4
36 0 40 4
40 0 44 4
44 0 48 4
48 0 52 4
52 0 56 4
56 0 60 4
60 0 64 4
64 0 68 4
68 0 72 4
72 0 76 4
76 0 80 4
80 0 84 4
84 0 88 4
88 0 92 4
92 0 96 4
96 0 100 4
100 0 104 4
104 0 108 4
108 0 112 4
112 ...

output:

600
400
0
2594
150

result:

wrong answer 1st lines differ - expected: '50000', found: '600'