QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#506113 | #5668. Cell Nuclei Detection | UESTC_DECAYALI# | AC ✓ | 201ms | 128432kb | C++17 | 2.9kb | 2024-08-05 15:22:08 | 2024-08-05 15:22:09 |
Judging History
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'