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QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#132314 | #5668. Cell Nuclei Detection | willow# | AC ✓ | 2056ms | 69340kb | C++14 | 2.9kb | 2023-07-29 15:03:03 | 2023-07-29 15:03:04 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int maxn = 1e5 + 5;
int T, n, m;
namespace HK {
int n1, n2, m, cx[maxn], cy[maxn], dx[maxn], dy[maxn], vis[maxn], id[maxn];
vector<pair<int, int> > e[maxn];
int q[maxn], head, tail;
void Init(int _n, int _m) {
n1 = _n, n2 = _m, m = 0;
for(int i = 1; i <= n1; ++ i)
e[i].clear();
}
void Add(int u, int v) {
e[u].push_back({v, ++ m});
}
int Match(int u) {
for(auto edge : e[u]) {
int v = edge.first;
if(!vis[v] && dy[v] == dx[u] + 1) {
vis[v] = 1;
if(cy[v] == -1 || Match(cy[v])) {
cx[u] = v;
cy[v] = u;
id[u] = edge.second;
return 1;
}
}
}
return 0;
}
bool BFS() {
for(int i = 1; i <= n1; ++ i)
dx[i] = 0;
for(int i = 1; i <= n2; ++ i)
dy[i] = 0;
head = 1, tail = 0;
for(int i = 1; i <= n1; ++ i)
if(cx[i] == -1) {
q[++ tail] = i;
dx[i] = 1;
}
bool flag = 0;
while(head <= tail) {
int u = q[head ++];
for(auto edge : e[u]) {
int v = edge.first;
if(dy[v] == 0) {
dy[v] = dx[u] + 1;
if(cy[v] == -1) {
flag = true;
}
else {
dx[cy[v]] = dy[v] + 1;
q[++ tail] = cy[v];
}
}
}
}
return flag;
}
int Solve() {
int ans = 0;
for(int i = 1; i <= n1; ++ i)
cx[i] = -1;
for(int i = 1; i <= n2; ++ i)
cy[i] = -1;
while(BFS()) {
for(int i = 1; i <= max(n1, n2); ++ i) {
vis[i] = 0;
}
for(int i = 1; i <= n1; ++ i) {
if(cx[i] == -1) {
ans += Match(i);
}
}
}
return ans;
}
}
int blx[maxn], brx[maxn], bly[maxn], bry[maxn];
int dlx[maxn], drx[maxn], dly[maxn], dry[maxn];
int area[maxn];
map<pair<int, int>, vector<int> > mpid;
int Check(int i, int j) {
int lx = max(dlx[i], blx[j]);
int rx = min(drx[i], brx[j]);
int ly = max(dly[i], bly[j]);
int ry = min(dry[i], bry[j]);
if(lx >= rx)
return 0;
if(ly >= ry)
return 0;
return (rx - lx) * (ry - ly) * 2 >= area[j];
}
int main() {
for(scanf("%d", &T); T --; ) {
scanf("%d%d", &m, &n);
HK :: Init(n, m);
for(int i = 1; i <= m; ++ i) {
scanf("%d%d%d%d", &blx[i], &bly[i], &brx[i], &bry[i]);
if(blx[i] > brx[i])
swap(blx[i], brx[i]);
if(bly[i] > bry[i])
swap(bly[i], bry[i]);
mpid[{blx[i], bly[i]}].push_back(i);
area[i] = (brx[i] - blx[i]) * (bry[i] - bly[i]);
}
for(int i = 1; i <= n; ++ i) {
scanf("%d%d%d%d", &dlx[i], &dly[i], &drx[i], &dry[i]);
if(dlx[i] > drx[i])
swap(dlx[i], drx[i]);
if(dly[i] > dry[i])
swap(dly[i], dry[i]);
}
for(int i = 1; i <= n; ++ i) {
for(int x = max(0, dlx[i] - 4); x <= drx[i]; ++ x) {
for(int y = max(0, dly[i] - 4); y <= dry[i]; ++ y) {
if(mpid.find({x, y}) == mpid.end())
continue;
for(auto j : mpid[{x, y}])
if(Check(i, j))
HK :: Add(i, j);
}
}
}
printf("%d\n", HK :: Solve());
}
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 10056kb
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: 2ms
memory: 10056kb
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: 1109ms
memory: 29272kb
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: 1073ms
memory: 39072kb
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: 497ms
memory: 21928kb
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: 2056ms
memory: 69340kb
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: 3ms
memory: 10052kb
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'