| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 69396 |
2018-08-20T18:44:17 Z |
Benq |
Dragon 2 (JOI17_dragon2) |
C++14 |
|
4000 ms |
26744 KB |
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/rope>
using namespace std;
using namespace __gnu_pbds;
using namespace __gnu_cxx;
typedef long long ll;
typedef long double ld;
typedef complex<ld> cd;
typedef pair<int, int> pi;
typedef pair<ll,ll> pl;
typedef pair<ld,ld> pd;
typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<ll> vl;
typedef vector<pi> vpi;
typedef vector<pl> vpl;
typedef vector<cd> vcd;
template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;
#define FOR(i, a, b) for (int i=a; i<(b); i++)
#define F0R(i, a) for (int i=0; i<(a); i++)
#define FORd(i,a,b) for (int i = (b)-1; i >= a; i--)
#define F0Rd(i,a) for (int i = (a)-1; i >= 0; i--)
#define sz(x) (int)(x).size()
#define mp make_pair
#define pb push_back
#define f first
#define s second
#define lb lower_bound
#define ub upper_bound
#define all(x) x.begin(), x.end()
const int MOD = 1000000007;
const ll INF = 1e18;
const int MX = 30001;
namespace geo {
template<class T> istream& operator>> (istream& is, complex<T>& p) {
T value;
is >> value; p.real(value);
is >> value; p.imag(value);
return is;
}
void nor(pd& x) { if (x.f < -M_PIl) x.f += 2*M_PIl, x.s += 2*M_PIl; }
ld area(cd a, cd b, cd c) { return (conj(b-a)*(c-a)).imag(); }
}
using namespace geo;
struct BIT {
vector<array<ld,3>> toUpd;
vector<pair<array<ld,3>,int*>> toQuery;
map<ld,int> m;
vi bit;
void upd(ld x, int y) {
for (int X = m[x]; X < sz(bit); X += (X&-X))
bit[X] += y;
}
void query(ld x, int y, int* z) {
int t = 0;
auto it = m.ub(x);
for (int X = (it == m.begin() ? 0 : prev(it)->s); X; X -= (X&-X)) {
(*z) += y*bit[X];
t += y*bit[X];
}
}
void prop() {
for (auto x: toUpd) m[x[1]] = 0;
int co = 0; for (auto& a: m) a.s = ++co;
bit.resize(sz(m)+1);
sort(all(toUpd)), sort(all(toQuery));
int ind = 0;
for (auto x: toQuery) {
while (ind < sz(toUpd) && toUpd[ind][0] <= x.f[0]) {
upd(toUpd[ind][1],toUpd[ind][2]);
ind ++;
}
query(x.f[1],x.f[2],x.s);
}
}
};
int N,M,group[MX],ans[100001];
vi member[MX];
cd pos[MX], h[2];
pd POS[MX];
pair<pd,pd> BOUND[MX];
vpi query[MX], query2[MX];
void process1(int x) {
BIT z; array<int,MX> co; co.fill(0);
for (int a: member[x]) {
z.toUpd.pb({BOUND[a].f.f,BOUND[a].s.f,1});
z.toUpd.pb({BOUND[a].f.s,BOUND[a].s.s,1});
z.toUpd.pb({BOUND[a].f.f,BOUND[a].s.s,-1});
z.toUpd.pb({BOUND[a].f.s,BOUND[a].s.f,-1});
}
FOR(a,1,N+1) {
z.toQuery.pb({{POS[a].f,POS[a].s,1},&co[group[a]]});
z.toQuery.pb({{POS[a].f+2*M_PIl,POS[a].s,1},&co[group[a]]});
z.toQuery.pb({{POS[a].f,POS[a].s+2*M_PIl,1},&co[group[a]]});
z.toQuery.pb({{POS[a].f+2*M_PIl,POS[a].s+2*M_PIl,1},&co[group[a]]});
}
z.prop();
for (auto a: query[x]) ans[a.s] = co[a.f];
}
void process2(int x) {
for (auto a: query[x]) query2[a.f].pb({x,a.s});
}
void process(int x) {
if (sz(member[x]) >= 500) process1(x);
else process2(x);
}
void input() {
ios_base::sync_with_stdio(0); cin.tie(0);
cin >> N >> M;
FOR(i,1,N+1) {
cin >> pos[i] >> group[i];
member[group[i]].pb(i);
}
F0R(i,2) cin >> h[i];
FOR(i,1,N+1) {
POS[i].f = arg(pos[i]-h[0]);
POS[i].s = arg(pos[i]-h[1]);
if (area(h[0],h[1],pos[i]) > 0) BOUND[i] = {{POS[i].f-M_PIl,POS[i].f},{POS[i].s,POS[i].s+M_PIl}};
else BOUND[i] = {{POS[i].f,POS[i].f+M_PIl},{POS[i].s-M_PIl,POS[i].s}};
nor(BOUND[i].f); nor(BOUND[i].s);
}
}
int main() {
input();
int Q; cin >> Q;
F0R(i,Q) {
int f,g; cin >> f >> g;
query[f].pb({g,i});
}
FOR(i,1,M+1) process(i);
FOR(i,1,M+1) {
BIT z;
for (auto a: query2[i]) for (int b: member[a.f]) {
z.toQuery.pb({{BOUND[b].f.s,BOUND[b].s.s,1},&ans[a.s]});
z.toQuery.pb({{BOUND[b].f.f,BOUND[b].s.s,-1},&ans[a.s]});
z.toQuery.pb({{BOUND[b].f.s,BOUND[b].s.f,-1},&ans[a.s]});
z.toQuery.pb({{BOUND[b].f.f,BOUND[b].s.f,1},&ans[a.s]});
}
for (int a: member[i]) {
z.toUpd.pb({POS[a].f,POS[a].s,1});
z.toUpd.pb({POS[a].f+2*M_PIl,POS[a].s,1});
z.toUpd.pb({POS[a].f,POS[a].s+2*M_PIl,1});
z.toUpd.pb({POS[a].f+2*M_PIl,POS[a].s+2*M_PIl,1});
}
z.prop();
}
F0R(i,Q) cout << ans[i] << "\n";
}
/* Look for:
* the exact constraints (multiple sets are too slow for n=10^6 :( )
* special cases (n=1?)
* overflow (ll vs int?)
* array bounds
* if you have no idea just guess the appropriate well-known algo instead of doing nothing :/
*/
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
33 ms |
5204 KB |
Output is correct |
| 2 |
Correct |
35 ms |
5204 KB |
Output is correct |
| 3 |
Correct |
255 ms |
5204 KB |
Output is correct |
| 4 |
Correct |
460 ms |
6140 KB |
Output is correct |
| 5 |
Correct |
121 ms |
6544 KB |
Output is correct |
| 6 |
Correct |
11 ms |
6544 KB |
Output is correct |
| 7 |
Correct |
13 ms |
6544 KB |
Output is correct |
| 8 |
Correct |
32 ms |
6544 KB |
Output is correct |
| 9 |
Correct |
25 ms |
6544 KB |
Output is correct |
| 10 |
Correct |
29 ms |
6544 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
423 ms |
26388 KB |
Output is correct |
| 2 |
Correct |
952 ms |
26388 KB |
Output is correct |
| 3 |
Correct |
139 ms |
26388 KB |
Output is correct |
| 4 |
Correct |
78 ms |
26388 KB |
Output is correct |
| 5 |
Correct |
70 ms |
26388 KB |
Output is correct |
| 6 |
Correct |
369 ms |
26448 KB |
Output is correct |
| 7 |
Correct |
406 ms |
26528 KB |
Output is correct |
| 8 |
Correct |
378 ms |
26744 KB |
Output is correct |
| 9 |
Correct |
291 ms |
26744 KB |
Output is correct |
| 10 |
Correct |
264 ms |
26744 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
33 ms |
5204 KB |
Output is correct |
| 2 |
Correct |
35 ms |
5204 KB |
Output is correct |
| 3 |
Correct |
255 ms |
5204 KB |
Output is correct |
| 4 |
Correct |
460 ms |
6140 KB |
Output is correct |
| 5 |
Correct |
121 ms |
6544 KB |
Output is correct |
| 6 |
Correct |
11 ms |
6544 KB |
Output is correct |
| 7 |
Correct |
13 ms |
6544 KB |
Output is correct |
| 8 |
Correct |
32 ms |
6544 KB |
Output is correct |
| 9 |
Correct |
25 ms |
6544 KB |
Output is correct |
| 10 |
Correct |
29 ms |
6544 KB |
Output is correct |
| 11 |
Correct |
423 ms |
26388 KB |
Output is correct |
| 12 |
Correct |
952 ms |
26388 KB |
Output is correct |
| 13 |
Correct |
139 ms |
26388 KB |
Output is correct |
| 14 |
Correct |
78 ms |
26388 KB |
Output is correct |
| 15 |
Correct |
70 ms |
26388 KB |
Output is correct |
| 16 |
Correct |
369 ms |
26448 KB |
Output is correct |
| 17 |
Correct |
406 ms |
26528 KB |
Output is correct |
| 18 |
Correct |
378 ms |
26744 KB |
Output is correct |
| 19 |
Correct |
291 ms |
26744 KB |
Output is correct |
| 20 |
Correct |
264 ms |
26744 KB |
Output is correct |
| 21 |
Correct |
439 ms |
26744 KB |
Output is correct |
| 22 |
Correct |
1097 ms |
26744 KB |
Output is correct |
| 23 |
Correct |
2950 ms |
26744 KB |
Output is correct |
| 24 |
Execution timed out |
4022 ms |
26744 KB |
Time limit exceeded |
| 25 |
Halted |
0 ms |
0 KB |
- |
