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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#506113#5668. Cell Nuclei DetectionUESTC_DECAYALI#AC ✓201ms128432kbC++172.9kb2024-08-05 15:22:082024-08-05 15:22:09

Judging History

你现在查看的是最新测评结果

  • [2024-08-05 15:22:09]
  • 评测
  • 测评结果:AC
  • 用时:201ms
  • 内存:128432kb
  • [2024-08-05 15:22:08]
  • 提交

answer

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

#define RI int

using pii = pair<int, int>;
const int N = 2005;

int m, n;
vector<array<int, 3>> rect[N][N];

namespace Network_Flow
{
    const int NN=100005,MM=1e7+5,INF=1e9;
    struct edge
    {
        int to,nxt,v;
    }e[MM<<1]; int cnt=1,head[NN],cur[NN],dep[NN],s,t;
    inline void clear(void)
    {
        memset(head,0,(t+1)*sizeof(int)); cnt=1;
    }
    inline void addedge(int x,int y,int z)
    {
        e[++cnt]=(edge){y,head[x],z}; head[x]=cnt;
        e[++cnt]=(edge){x,head[y],0}; head[y]=cnt;
    }
    #define to e[i].to
    inline bool BFS(void)
    {
        memset(dep,0,(t+1)*sizeof(int)); dep[s]=1;
        queue <int> q; q.push(s);
        while (!q.empty())
        {
            int now=q.front(); q.pop();
            for (RI i=head[now];i;i=e[i].nxt)
            if (e[i].v&&!dep[to]) dep[to]=dep[now]+1,q.push(to);
        }
        return dep[t];
    }
    inline int DFS(int now,int tar,int dis)
    {
        if (now==tar) return dis; int ret=0;
        for (RI& i=cur[now];i&&dis;i=e[i].nxt)
        if (e[i].v&&dep[to]==dep[now]+1)
        {
            int dist=DFS(to,tar,min(dis,e[i].v));
            if (!dist) dep[to]=0;
            dis-=dist; ret+=dist;
            e[i].v-=dist; e[i^1].v+=dist;
            if (!dis) return ret;
        }
        if (!ret) dep[now]=0; return ret;
    }
    #undef to
    inline int Dinic(int ret=0)
    {
        while (BFS()) memcpy(cur,head,(t+1)*sizeof(int)),ret+=DFS(s,t,INF); return ret;
    }
}

using namespace Network_Flow;

void solve(){
    for (int i=0; i<N; ++i) for (int j=0; j<N; ++j) rect[i][j].clear();

    cin >> m >> n;
    for (int i=1; i<=m; ++i){
        int x1, y1, x2, y2; cin >> x1 >> y1 >> x2 >> y2;
        if (x1>x2) swap(x1, x2);
        if (y1>y2) swap(y1, y2);
        rect[x1][y1].push_back({x2, y2, i});
    }

    for (int v=1; v<=n; ++v){
        int x1, y1, x2, y2; cin >> x1 >> y1 >> x2 >> y2;
        if (x1>x2) swap(x1, x2);
        if (y1>y2) swap(y1, y2);

        for (int i=max(0, x1-3); i<x2; ++i){
            for (int j=max(0, y1-3); j<y2; ++j){
                for (auto [xd2, yd2, id] : rect[i][j]){
                    int xl = max(x1, i), xr = min(x2, xd2);
                    int yl = max(y1, j), yr = min(y2, yd2);
                    if (xl>=xr || yl>=yr) continue;
                    int area1 = (xr-xl)*(yr-yl);
                    int area2 = (xd2-i)*(yd2-j);
                    if (area1*2 >= area2) addedge(id, v+m, 1);
                }
            }
        }
    }

    s=n+m+1, t=n+m+2;
    for (int i=1; i<=m; ++i) addedge(s, i, 1);
    for (int i=m+1; i<=m+n; ++i) addedge(i, t, 1);
    cout<<Dinic()<<'\n';
    clear();
}

signed main(){
    ios::sync_with_stdio(0); cin.tie(0);
    int t; cin >> t; while (t--) solve(); 
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 26ms
memory: 98452kb

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: 37ms
memory: 99516kb

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: 0
Accepted
time: 176ms
memory: 121516kb

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:

50000
50000
0
50000
3150

result:

ok 5 lines

Test #4:

score: 0
Accepted
time: 164ms
memory: 128432kb

input:

5
50000 50000
0 0 1 1
1 0 2 1
2 0 3 1
3 0 4 1
4 0 5 1
5 0 6 1
6 0 7 1
7 0 8 1
8 0 9 1
9 0 10 1
10 0 11 1
11 0 12 1
12 0 13 1
13 0 14 1
14 0 15 1
15 0 16 1
16 0 17 1
17 0 18 1
18 0 19 1
19 0 20 1
20 0 21 1
21 0 22 1
22 0 23 1
23 0 24 1
24 0 25 1
25 0 26 1
26 0 27 1
27 0 28 1
28 0 29 1
29 0 30 1
30 0 ...

output:

50000
25050
12500
16000
8000

result:

ok 5 lines

Test #5:

score: 0
Accepted
time: 180ms
memory: 105768kb

input:

5
50000 50000
0 0 2 4
4 0 7 1
8 0 10 1
12 0 15 3
16 0 19 1
20 0 22 2
24 0 26 4
28 0 30 4
32 0 36 3
36 0 40 1
40 0 44 1
44 0 47 2
48 0 49 3
52 0 54 1
56 0 59 4
60 0 64 3
64 0 68 3
68 0 70 1
72 0 76 4
76 0 80 3
80 0 84 4
84 0 87 2
88 0 90 1
92 0 94 4
96 0 98 1
100 0 104 1
104 0 107 2
108 0 110 4
112 0...

output:

10594
10779
10618
10381
10779

result:

ok 5 lines

Test #6:

score: 0
Accepted
time: 201ms
memory: 120104kb

input:

5
50000 50000
0 0 4 4
1 0 5 4
2 0 6 4
3 0 7 4
4 0 8 4
5 0 9 4
6 0 10 4
7 0 11 4
8 0 12 4
9 0 13 4
10 0 14 4
11 0 15 4
12 0 16 4
13 0 17 4
14 0 18 4
15 0 19 4
16 0 20 4
17 0 21 4
18 0 22 4
19 0 23 4
20 0 24 4
21 0 25 4
22 0 26 4
23 0 27 4
24 0 28 4
25 0 29 4
26 0 30 4
27 0 31 4
28 0 32 4
29 0 33 4
30...

output:

50000
50000
50000
50000
49600

result:

ok 5 lines

Test #7:

score: 0
Accepted
time: 25ms
memory: 98140kb

input:

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

output:

3

result:

ok single line: '3'