結果

問題 No.1920 Territory
ユーザー ecottea
提出日時 2024-03-16 17:05:13
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 856 ms / 5,000 ms
コード長 12,075 bytes
コンパイル時間 6,014 ms
コンパイル使用メモリ 287,952 KB
最終ジャッジ日時 2025-02-20 06:54:42
ジャッジサーバーID
(参考情報)
judge3 / judge1
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 32
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ソースコード

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プレゼンテーションモードにする

#ifndef HIDDEN_IN_VS //
//
#define _CRT_SECURE_NO_WARNINGS
//
#include <bits/stdc++.h>
using namespace std;
//
using ll = long long; using ull = unsigned long long; // -2^63 2^63 = 9 * 10^18int -2^31 2^31 = 2 * 10^9
using pii = pair<int, int>; using pll = pair<ll, ll>; using pil = pair<int, ll>; using pli = pair<ll, int>;
using vi = vector<int>; using vvi = vector<vi>; using vvvi = vector<vvi>; using vvvvi = vector<vvvi>;
using vl = vector<ll>; using vvl = vector<vl>; using vvvl = vector<vvl>; using vvvvl = vector<vvvl>;
using vb = vector<bool>; using vvb = vector<vb>; using vvvb = vector<vvb>;
using vc = vector<char>; using vvc = vector<vc>; using vvvc = vector<vvc>;
using vd = vector<double>; using vvd = vector<vd>; using vvvd = vector<vvd>;
template <class T> using priority_queue_rev = priority_queue<T, vector<T>, greater<T>>;
using Graph = vvi;
//
const double PI = acos(-1);
const vi DX = { 1, 0, -1, 0 }; // 4
const vi DY = { 0, 1, 0, -1 };
int INF = 1001001001; ll INFL = 4004004003104004004LL; // (int)INFL = 1010931620;
//
struct fast_io { fast_io() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(18); } } fastIOtmp;
//
#define all(a) (a).begin(), (a).end()
#define sz(x) ((int)(x).size())
#define lbpos(a, x) (int)distance((a).begin(), std::lower_bound(all(a), x))
#define ubpos(a, x) (int)distance((a).begin(), std::upper_bound(all(a), x))
#define Yes(b) {cout << ((b) ? "Yes\n" : "No\n");}
#define rep(i, n) for(int i = 0, i##_len = int(n); i < i##_len; ++i) // 0 n-1
#define repi(i, s, t) for(int i = int(s), i##_end = int(t); i <= i##_end; ++i) // s t
#define repir(i, s, t) for(int i = int(s), i##_end = int(t); i >= i##_end; --i) // s t
#define repe(v, a) for(const auto& v : (a)) // a
#define repea(v, a) for(auto& v : (a)) // a
#define repb(set, d) for(int set = 0, set##_ub = 1 << int(d); set < set##_ub; ++set) // d
#define repis(i, set) for(int i = lsb(set), bset##i = set; i >= 0; bset##i -= 1 << i, i = lsb(bset##i)) // set
#define repp(a) sort(all(a)); for(bool a##_perm = true; a##_perm; a##_perm = next_permutation(all(a))) // a
#define smod(n, m) ((((n) % (m)) + (m)) % (m)) // mod
#define uniq(a) {sort(all(a)); (a).erase(unique(all(a)), (a).end());} //
#define EXIT(a) {cout << (a) << endl; exit(0);} //
#define inQ(x, y, u, l, d, r) ((u) <= (x) && (l) <= (y) && (x) < (d) && (y) < (r)) //
//
template <class T> inline ll powi(T n, int k) { ll v = 1; rep(i, k) v *= n; return v; }
template <class T> inline bool chmax(T& M, const T& x) { if (M < x) { M = x; return true; } return false; } // true
    
template <class T> inline bool chmin(T& m, const T& x) { if (m > x) { m = x; return true; } return false; } // true
    
template <class T> inline T get(T set, int i) { return (set >> i) & T(1); }
//
template <class T, class U> inline istream& operator>>(istream& is, pair<T, U>& p) { is >> p.first >> p.second; return is; }
template <class T> inline istream& operator>>(istream& is, vector<T>& v) { repea(x, v) is >> x; return is; }
template <class T> inline vector<T>& operator--(vector<T>& v) { repea(x, v) --x; return v; }
template <class T> inline vector<T>& operator++(vector<T>& v) { repea(x, v) ++x; return v; }
#endif //
#if __has_include(<atcoder/all>)
#include <atcoder/all>
using namespace atcoder;
#ifdef _MSC_VER
#include "localACL.hpp"
#endif
//using mint = modint1000000007;
using mint = modint998244353;
//using mint = modint; // mint::set_mod(m);
namespace atcoder {
inline istream& operator>>(istream& is, mint& x) { ll x_; is >> x_; x = x_; return is; }
inline ostream& operator<<(ostream& os, const mint& x) { os << x.val(); return os; }
}
using vm = vector<mint>; using vvm = vector<vm>; using vvvm = vector<vvm>; using vvvvm = vector<vvvm>; using pim = pair<int, mint>;
#endif
#ifdef _MSC_VER // Visual Studio
#include "local.hpp"
#else // gcc
inline int popcount(int n) { return __builtin_popcount(n); }
inline int popcount(ll n) { return __builtin_popcountll(n); }
inline int lsb(int n) { return n != 0 ? __builtin_ctz(n) : -1; }
inline int lsb(ll n) { return n != 0 ? __builtin_ctzll(n) : -1; }
inline int msb(int n) { return n != 0 ? (31 - __builtin_clz(n)) : -1; }
inline int msb(ll n) { return n != 0 ? (63 - __builtin_clzll(n)) : -1; }
#define dump(...)
#define dumpel(v)
#define dump_list(v)
#define dump_mat(v)
#define input_from_file(f)
#define output_to_file(f)
#define Assert(b) { if (!(b)) while (1) cout << "OLE"; }
#endif
//O(n log w + w)
/*
* 2 (x1[i], y1[i]), (x2[i], y2[i]) n
* (L , T , ) 3
*
* y1[i]≧0
*/
tuple<ll, ll, ll> count_intersections_of_segments(const vi& x1, const vi& y1, const vi& x2, const vi& y2) {
// verify : https://yukicoder.me/problems/no/1920
int n = sz(x1);
// (x )
vector<tuple<int, int, int, int>> ev;
const int EPU = 0; //
const int VSG = 1; //
const int EPD = 2; //
const int ERS = 3; //
const int HSG = 4; //
int w = 0;
rep(i, n) {
//
if (y1[i] == y2[i]) {
int xu = x1[i], xd = x2[i], y = y1[i];
if (xu > xd) swap(xu, xd);
ev.emplace_back(xu, EPU, y, y);
ev.emplace_back(xu + 1, VSG, y, y);
ev.emplace_back(xd, EPD, y, y);
ev.emplace_back(xd + 1, ERS, y, y);
chmax(w, y);
}
//
else if (x1[i] == x2[i]) {
int yl = y1[i], yr = y2[i], x = x1[i];
if (yl > yr) swap(yl, yr);
ev.emplace_back(x, HSG, yl, yr);
chmax(w, yr);
}
else Assert(!"illegal segment!!");
}
//
sort(all(ev));
fenwick_tree<int> ep(w + 1), seg(w + 1);
ll cntL = 0, cntT = 0, cntX = 0;
//
for (auto& [x, tp, yl, yr] : ev) {
if (tp == EPU) ep.add(yl, 1);
else if (tp == VSG) ep.add(yl, -1), seg.add(yl, 1);
else if (tp == EPD) seg.add(yl, -1), ep.add(yl, 1);
else if (tp == ERS) ep.add(yl, -1);
else if (tp == HSG) {
cntL += ep.sum(yl, yl + 1) + ep.sum(yr, yr + 1);
cntT += seg.sum(yl, yl + 1) + seg.sum(yr, yr + 1);
if (yl + 1 <= yr) {
cntT += ep.sum(yl + 1, yr);
cntX += seg.sum(yl + 1, yr);
}
}
}
return { cntL, cntT, cntX };
}
//O(n log w + w)
/*
* 2 (x1[i], y1[i]), (x2[i], y2[i]) n Union-Find
*
* y1[i]≧0
*/
int opccc(int a, int b) { return min(a, b); }
int eccc() { return INF; }
int opccc2(int a, int b) { return max(a, b); }
int eccc2() { return -1; }
dsu connectivity_of_segments(const vi& x1, const vi& y1, const vi& x2, const vi& y2) {
// verify : https://yukicoder.me/problems/no/1920
int n = sz(x1);
// (x , )
vector<tuple<int, int, int, int, int>> ev;
const int EPU = 0; //
const int ERS = 1; //
const int HSG = 2; //
int w = 0;
rep(i, n) {
//
if (y1[i] == y2[i]) {
int xu = x1[i], xd = x2[i], y = y1[i];
if (xu > xd) swap(xu, xd);
ev.emplace_back(xu, EPU, y, y, i);
ev.emplace_back(xd + 1, ERS, y, y, i);
chmax(w, y);
}
//
else if (x1[i] == x2[i]) {
int yl = y1[i], yr = y2[i], x = x1[i];
if (yl > yr) swap(yl, yr);
ev.emplace_back(x, HSG, yl, yr, i);
chmax(w, yr);
}
else Assert(!"illegal segment!!");
}
//
sort(all(ev));
// vid[y] : y -1
segtree<int, opccc2, eccc2> vid(w + 1);
//
lazy_segtree<int, opccc, eccc, int, opccc, opccc, eccc> rgt(w + 1);
dsu d(n);
//
for (auto& [x, tp, yl, yr, id] : ev) {
if (tp == EPU) {
//
vid.set(yl, id);
//
rgt.apply(0, yl, yl);
}
else if (tp == ERS) {
//
vid.set(yl, -1);
//
int ny = vid.max_right(yl, [](int t) { return t == -1; });
rgt.set(yl, ny);
}
else if (tp == HSG) {
//
vi seen;
// yl yr
int y = yl;
while (y <= yr) {
int id2 = vid.get(y);
if (id2 != -1) {
d.merge(id, id2);
seen.push_back(y);
}
y = rgt.get(y);
}
//
repe(y2, seen) rgt.set(y2, y);
}
}
return d;
}
//O(n log n)
/*
* n [x1[i]..x2[i])×[y1[i]..y2[i])
* x1_cp[i], y1_cp[i], x2_cp[i], y2_cp[i]
* xs[i], ys[j] i, j
* (x , y )
*/
template <class T>
pii coordinate_compression_rectangle(
const vector<T>& x1, const vector<T>& x2, const vector<T>& y1, const vector<T>& y2,
vi& x1_cp, vi& x2_cp, vi& y1_cp, vi& y2_cp,
vector<T>* xs = nullptr, vector<T>* ys = nullptr)
{
// verify : https://onlinejudge.u-aizu.ac.jp/courses/library/3/DSL/all/DSL_4_A
int n = sz(x1);
if (xs == nullptr) xs = new vector<T>;
if (ys == nullptr) ys = new vector<T>;
// x, y
xs->clear();
ys->clear();
rep(i, n) {
xs->push_back(x1[i]);
ys->push_back(y1[i]);
xs->push_back(x2[i]);
ys->push_back(y2[i]);
}
// *xs[*ys] : x[y]
uniq(*xs); uniq(*ys);
// xs, ys
x1_cp.resize(n); y1_cp.resize(n);
x2_cp.resize(n); y2_cp.resize(n);
rep(i, n) {
x1_cp[i] = lbpos(*xs, x1[i]);
y1_cp[i] = lbpos(*ys, y1[i]);
x2_cp[i] = lbpos(*xs, x2[i]);
y2_cp[i] = lbpos(*ys, y2[i]);
}
return { sz(*xs), sz(*ys) };
}
int main() {
// input_from_file("input.txt");
// output_to_file("output.txt");
int n, m;
cin >> n >> m;
vi x1(n + m), y1(n + m), x2(n + m), y2(n + m);
rep(i, n) {
int a, b, c;
cin >> a >> b >> c;
x1[i] = b; y1[i] = a; x2[i] = c; y2[i] = a;
}
rep(j, m) {
int p, q, r;
cin >> p >> q >> r;
x1[n + j] = p; y1[n + j] = q; x2[n + j] = p; y2[n + j] = r;
}
vi x1c, y1c, x2c, y2c;
coordinate_compression_rectangle(x1, x2, y1, y2, x1c, x2c, y1c, y2c);
auto [cntL, cntT, cntX] = count_intersections_of_segments(x1c, y1c, x2c, y2c);
dump(cntL, cntT, cntX);
// V - E + F = ()
ll V = 2 * (n + m) - cntL + cntX;
ll E = (n + m) + cntT + cntX * 2;
int C = sz(connectivity_of_segments(x1c, y1c, x2c, y2c).groups());
ll F = C - V + E;
dump(V, E, F, C);
cout << F << endl;
}
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