| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 307425 |
2020-09-28T05:41:41 Z |
xyzyzl |
Park (BOI16_park) |
C++14 |
|
343 ms |
33360 KB |
// Time:
// Algorithms:
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp> // pbds
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/detail/standard_policies.hpp>
#pragma GCC optimize("O3")
using namespace __gnu_pbds;
using namespace std;
#define MAXN 200005
#define FOR(i, n) for (int i = 0; i < n; i++)
#define FORR(j, i, n) for (int i = j; i < n; i++)
#define FORD(i, n) for (int i = n - 1; i >= 0; i--)
#define F1R(i, n) for (int i = 1; i <= n; i++)
#define F1RD(i, n) for (int i = n; i >= 1; i--)
#define pb push_back
#define mp make_pair
#define endl '\n'
#define DUEHOANG \
ios_base::sync_with_stdio(0); \
cin.tie(NULL); \
cout.tie(NULL)
#define fileio(in, out) \
freopen(in, "r", stdin); \
freopen(out, "w", stdout);
#define ll long long
#define MOD (1e9*1)+7
#define MOD2 998244353
#define INF (1e9*1)+5
typedef set<int> si;
typedef vector<int> vi;
typedef pair<int, int> pii;
typedef pair<int, pii> iii;
typedef vector<pii> vii;
typedef vector<iii> viii;
typedef priority_queue<int> pqi;
typedef stack<int> sti;
typedef queue<int> qi;
typedef deque<int> di;
typedef map<int, int> mii;
// ordered_set
typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> os;
#define f first
#define s second
#define LEFT(x) 2 * x
#define RIGHT(x) 2 * x + 1
#define bitinc(x) x&-x
const int MAX(int &a, int b)
{
return a = max(a, b);
}
const int MIN(int &a, int b)
{
return a = min(a, b);
}
int n, m, p[2010], sz[2010];
ll w, h;
iii pts[2010], vs[100010];
int find_set(int i)
{
return (p[i] == i) ? i : (p[i] = find_set(p[i]));
}
bool union_set(int i, int j)
{
int x = find_set(i);
int y = find_set(j);
if (x == y)
return false;
p[x] = p[y] = x;
sz[x] += sz[y];
return true;
}
void init()
{
for(int i = 0; i < 2005; i++) p[i] = i;
for(int i = 0; i < 2005; i++) sz[i] = 1;
}
double dist(pii a, pii b)
{
return sqrt((a.f-b.f)*(a.f-b.f) + (a.s-b.s)*(a.s-b.s));
}
void solve()
{
cin >> n >> m;
cin >> w >> h;
FOR(i, n)
{
cin >> pts[i].s.f >> pts[i].s.s >> pts[i].f;
}
FOR(i, m)
{
int r, c;
cin >> r >> c;
vs[i] = mp(r*2, mp(c-1, i));
}
vector<pair<double, pair<int, int> > > eg;
FOR(i, n)
{
FORR(i+1,j,n)
{
eg.pb(mp(dist(pts[i].s, pts[j].s) - pts[i].f - pts[j].f, mp(i+4, j+4)));
}
}
FOR(i, n)
{
eg.pb(mp(dist(pts[i].s, mp(0, pts[i].s.s)) - pts[i].f, mp(i+4, 0)));
eg.pb(mp(dist(pts[i].s, mp(pts[i].s.f, 0)) - pts[i].f, mp(i+4, 1)));
eg.pb(mp(dist(pts[i].s, mp(w, pts[i].s.s)) - pts[i].f, mp(i+4, 2)));
eg.pb(mp(dist(pts[i].s, mp(pts[i].s.f, h)) - pts[i].f, mp(i+4, 3)));
}
sort(eg.begin(), eg.end());
sort(vs, vs+m);
init();
int ind = 0;
bool bad[4][4];
bool C[4][4];
memset(bad, 0, sizeof bad);
for(auto e : eg)
{
while(ind < m && vs[ind].f <= e.f)
{
memset(C, 0, sizeof C);
FOR(i, 4)
{
C[i][i] = 1;
FORR(i+1, j, 4)
{
C[i][j] = find_set(i) == find_set(j);
C[j][i] = C[i][j];
}
}
iii cur = vs[ind];
FOR(i, 4)
{
if(cur.s.f == i) continue;
if(C[cur.s.f][(cur.s.f+1)%4] || C[i][(i+1)%4])
{
// cerr << "oh" << endl;
bad[cur.s.s][i] = 1;
}
bool vblock = C[1][3];
bool hblock = C[0][2];
if(abs(cur.s.f - i) == 2)
{
// cerr << "my" << endl;
if(vblock || hblock) bad[cur.s.s][i] = 1;
} else if(cur.s.f + i == 3)
{
// cerr << "fucking" << endl;
if(hblock) bad[cur.s.s][i] = 1;
} else
{
// cerr << "god" << endl;
if(vblock) bad[cur.s.s][i] = 1;
}
}
ind++;
if(ind >= m) break;
}
union_set(e.s.f, e.s.s);
}
FOR(i, m)
{
FOR(j, 4)
{
if(!bad[i][j]) cout << (j+1);
}
cout << endl;
}
}
signed main()
{
DUEHOANG;
int t = 1;
// cin >> t; // uncomment if it's multitest
while(t--)
{
solve();
}
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
343 ms |
33360 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
36 ms |
3956 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
343 ms |
33360 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
