結果
問題 | No.1920 Territory |
ユーザー | maspy |
提出日時 | 2022-06-05 10:47:14 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 2,449 ms / 5,000 ms |
コード長 | 27,731 bytes |
コンパイル時間 | 4,425 ms |
コンパイル使用メモリ | 271,376 KB |
実行使用メモリ | 510,048 KB |
最終ジャッジ日時 | 2024-09-21 04:08:04 |
合計ジャッジ時間 | 49,175 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 132 ms
143,940 KB |
testcase_01 | AC | 132 ms
143,884 KB |
testcase_02 | AC | 173 ms
143,868 KB |
testcase_03 | AC | 191 ms
149,684 KB |
testcase_04 | AC | 193 ms
149,692 KB |
testcase_05 | AC | 194 ms
149,696 KB |
testcase_06 | AC | 192 ms
149,684 KB |
testcase_07 | AC | 154 ms
149,692 KB |
testcase_08 | AC | 152 ms
148,960 KB |
testcase_09 | AC | 148 ms
149,036 KB |
testcase_10 | AC | 151 ms
149,020 KB |
testcase_11 | AC | 148 ms
148,904 KB |
testcase_12 | AC | 147 ms
149,040 KB |
testcase_13 | AC | 2,411 ms
509,348 KB |
testcase_14 | AC | 2,449 ms
508,988 KB |
testcase_15 | AC | 2,373 ms
509,588 KB |
testcase_16 | AC | 2,360 ms
510,048 KB |
testcase_17 | AC | 2,429 ms
509,736 KB |
testcase_18 | AC | 2,254 ms
500,804 KB |
testcase_19 | AC | 2,301 ms
500,024 KB |
testcase_20 | AC | 2,316 ms
500,136 KB |
testcase_21 | AC | 2,321 ms
500,364 KB |
testcase_22 | AC | 2,294 ms
499,384 KB |
testcase_23 | AC | 1,132 ms
469,544 KB |
testcase_24 | AC | 1,207 ms
486,648 KB |
testcase_25 | AC | 1,205 ms
482,216 KB |
testcase_26 | AC | 1,234 ms
482,180 KB |
testcase_27 | AC | 1,168 ms
480,228 KB |
testcase_28 | AC | 1,331 ms
480,224 KB |
testcase_29 | AC | 1,412 ms
499,276 KB |
testcase_30 | AC | 1,216 ms
499,976 KB |
testcase_31 | AC | 1,826 ms
471,992 KB |
testcase_32 | AC | 1,760 ms
471,960 KB |
testcase_33 | AC | 1,496 ms
455,652 KB |
testcase_34 | AC | 1,551 ms
456,124 KB |
ソースコード
#line 1 "/home/maspy/compro/library/my_template.hpp" #include <bits/stdc++.h> using namespace std; using ll = long long; using pi = pair<ll, ll>; using vi = vector<ll>; using u32 = unsigned int; using u64 = unsigned long long; using i128 = __int128; template <class T> using vc = vector<T>; template <class T> using vvc = vector<vc<T>>; template <class T> using vvvc = vector<vvc<T>>; template <class T> using vvvvc = vector<vvvc<T>>; template <class T> using vvvvvc = vector<vvvvc<T>>; template <class T> using pq = priority_queue<T>; template <class T> using pqg = priority_queue<T, vector<T>, greater<T>>; #define vec(type, name, ...) vector<type> name(__VA_ARGS__) #define vv(type, name, h, ...) \ vector<vector<type>> name(h, vector<type>(__VA_ARGS__)) #define vvv(type, name, h, w, ...) \ vector<vector<vector<type>>> name( \ h, vector<vector<type>>(w, vector<type>(__VA_ARGS__))) #define vvvv(type, name, a, b, c, ...) \ vector<vector<vector<vector<type>>>> name( \ a, vector<vector<vector<type>>>( \ b, vector<vector<type>>(c, vector<type>(__VA_ARGS__)))) // https://trap.jp/post/1224/ #define FOR1(a) for (ll _ = 0; _ < ll(a); ++_) #define FOR2(i, a) for (ll i = 0; i < ll(a); ++i) #define FOR3(i, a, b) for (ll i = a; i < ll(b); ++i) #define FOR4(i, a, b, c) for (ll i = a; i < ll(b); i += (c)) #define FOR1_R(a) for (ll i = (a)-1; i >= ll(0); --i) #define FOR2_R(i, a) for (ll i = (a)-1; i >= ll(0); --i) #define FOR3_R(i, a, b) for (ll i = (b)-1; i >= ll(a); --i) #define FOR4_R(i, a, b, c) for (ll i = (b)-1; i >= ll(a); i -= (c)) #define overload4(a, b, c, d, e, ...) e #define FOR(...) overload4(__VA_ARGS__, FOR4, FOR3, FOR2, FOR1)(__VA_ARGS__) #define FOR_R(...) \ overload4(__VA_ARGS__, FOR4_R, FOR3_R, FOR2_R, FOR1_R)(__VA_ARGS__) #define FOR_subset(t, s) for (ll t = s; t >= 0; t = (t == 0 ? -1 : (t - 1) & s)) #define all(x) x.begin(), x.end() #define len(x) ll(x.size()) #define elif else if #define eb emplace_back #define mp make_pair #define mt make_tuple #define fi first #define se second #define stoi stoll template <typename T> T SUM(vector<T> &A) { T sum = T(0); for (auto &&a: A) sum += a; return sum; } #define MIN(v) *min_element(all(v)) #define MAX(v) *max_element(all(v)) #define LB(c, x) distance((c).begin(), lower_bound(all(c), (x))) #define UB(c, x) distance((c).begin(), upper_bound(all(c), (x))) #define UNIQUE(x) sort(all(x)), x.erase(unique(all(x)), x.end()) int popcnt(int x) { return __builtin_popcount(x); } int popcnt(u32 x) { return __builtin_popcount(x); } int popcnt(ll x) { return __builtin_popcountll(x); } int popcnt(u64 x) { return __builtin_popcountll(x); } // (0, 1, 2, 3, 4) -> (-1, 0, 1, 1, 2) int topbit(int x) { return (x == 0 ? -1 : 31 - __builtin_clz(x)); } int topbit(u32 x) { return (x == 0 ? -1 : 31 - __builtin_clz(x)); } int topbit(ll x) { return (x == 0 ? -1 : 63 - __builtin_clzll(x)); } int topbit(u64 x) { return (x == 0 ? -1 : 63 - __builtin_clzll(x)); } // (0, 1, 2, 3, 4) -> (-1, 0, 1, 0, 2) int lowbit(int x) { return (x == 0 ? -1 : __builtin_ctz(x)); } int lowbit(u32 x) { return (x == 0 ? -1 : __builtin_ctz(x)); } int lowbit(ll x) { return (x == 0 ? -1 : __builtin_ctzll(x)); } int lowbit(u64 x) { return (x == 0 ? -1 : __builtin_ctzll(x)); } template <typename T, typename U> T ceil(T x, U y) { return (x > 0 ? (x + y - 1) / y : x / y); } template <typename T, typename U> T floor(T x, U y) { return (x > 0 ? x / y : (x - y + 1) / y); } template <typename T, typename U> pair<T, T> divmod(T x, U y) { T q = floor(x, y); return {q, x - q * y}; } ll binary_search(function<bool(ll)> check, ll ok, ll ng) { assert(check(ok)); while (abs(ok - ng) > 1) { auto x = (ng + ok) / 2; if (check(x)) ok = x; else ng = x; } return ok; } template <class T, class S> inline bool chmax(T &a, const S &b) { return (a < b ? a = b, 1 : 0); } template <class T, class S> inline bool chmin(T &a, const S &b) { return (a > b ? a = b, 1 : 0); } vi s_to_vi(const string &S, char first_char) { vi A(S.size()); FOR(i, S.size()) { A[i] = S[i] - first_char; } return A; } template <typename T> vector<T> cumsum(vector<T> &A, int off = 1) { int N = A.size(); vector<T> B(N + 1); FOR(i, N) { B[i + 1] = B[i] + A[i]; } if (off == 0) B.erase(B.begin()); return B; } template <typename CNT, typename T> vc<CNT> bincount(const vc<T> &A, int size) { vc<CNT> C(size); for (auto &&x: A) { ++C[x]; } return C; } template <typename T> vector<int> argsort(const vector<T> &A) { // stable vector<int> ids(A.size()); iota(all(ids), 0); sort(all(ids), [&](int i, int j) { return A[i] < A[j] || (A[i] == A[j] && i < j); }); return ids; } // A[I[0]], A[I[1]], ... template <typename T> vc<T> rearrange(const vc<T> &A, const vc<int> &I) { int n = len(A); assert(len(I) == n); vc<T> B(n); FOR(i, n) B[i] = A[I[i]]; return B; } #line 1 "/home/maspy/compro/library/other/io.hpp" // based on yosupo's fastio #include <unistd.h> namespace detail { template <typename T, decltype(&T::is_modint) = &T::is_modint> std::true_type check_value(int); template <typename T> std::false_type check_value(long); } // namespace detail template <typename T> struct is_modint : decltype(detail::check_value<T>(0)) {}; template <typename T> using is_modint_t = enable_if_t<is_modint<T>::value>; template <typename T> using is_not_modint_t = enable_if_t<!is_modint<T>::value>; struct Scanner { FILE *fp; char line[(1 << 15) + 1]; size_t st = 0, ed = 0; void reread() { memmove(line, line + st, ed - st); ed -= st; st = 0; ed += fread(line + ed, 1, (1 << 15) - ed, fp); line[ed] = '\0'; } bool succ() { while (true) { if (st == ed) { reread(); if (st == ed) return false; } while (st != ed && isspace(line[st])) st++; if (st != ed) break; } if (ed - st <= 50) { bool sep = false; for (size_t i = st; i < ed; i++) { if (isspace(line[i])) { sep = true; break; } } if (!sep) reread(); } return true; } template <class T, enable_if_t<is_same<T, string>::value, int> = 0> bool read_single(T &ref) { if (!succ()) return false; while (true) { size_t sz = 0; while (st + sz < ed && !isspace(line[st + sz])) sz++; ref.append(line + st, sz); st += sz; if (!sz || st != ed) break; reread(); } return true; } template <class T, enable_if_t<is_integral<T>::value, int> = 0> bool read_single(T &ref) { if (!succ()) return false; bool neg = false; if (line[st] == '-') { neg = true; st++; } ref = T(0); while (isdigit(line[st])) { ref = 10 * ref + (line[st++] & 0xf); } if (neg) ref = -ref; return true; } template <class T, is_modint_t<T> * = nullptr> bool read_single(T &ref) { long long val = 0; bool f = read_single(val); ref = T(val); return f; } bool read_single(double &ref) { string s; if (!read_single(s)) return false; ref = std::stod(s); return true; } bool read_single(char &ref) { string s; if (!read_single(s) || s.size() != 1) return false; ref = s[0]; return true; } template <class T> bool read_single(vector<T> &ref) { for (auto &d: ref) { if (!read_single(d)) return false; } return true; } template <class T, class U> bool read_single(pair<T, U> &p) { return (read_single(p.first) && read_single(p.second)); } template <class A, class B, class C> bool read_single(tuple<A, B, C> &p) { return (read_single(get<0>(p)) && read_single(get<1>(p)) && read_single(get<2>(p))); } template <class A, class B, class C, class D> bool read_single(tuple<A, B, C, D> &p) { return (read_single(get<0>(p)) && read_single(get<1>(p)) && read_single(get<2>(p)) && read_single(get<3>(p))); } void read() {} template <class H, class... T> void read(H &h, T &... t) { bool f = read_single(h); assert(f); read(t...); } Scanner(FILE *fp) : fp(fp) {} }; struct Printer { Printer(FILE *_fp) : fp(_fp) {} ~Printer() { flush(); } static constexpr size_t SIZE = 1 << 15; FILE *fp; char line[SIZE], small[50]; size_t pos = 0; void flush() { fwrite(line, 1, pos, fp); pos = 0; } void write(const char &val) { if (pos == SIZE) flush(); line[pos++] = val; } template <class T, enable_if_t<is_integral<T>::value, int> = 0> void write(T val) { if (pos > (1 << 15) - 50) flush(); if (val == 0) { write('0'); return; } if (val < 0) { write('-'); val = -val; // todo min } size_t len = 0; while (val) { small[len++] = char(0x30 | (val % 10)); val /= 10; } for (size_t i = 0; i < len; i++) { line[pos + i] = small[len - 1 - i]; } pos += len; } void write(const string &s) { for (char c: s) write(c); } void write(const char *s) { size_t len = strlen(s); for (size_t i = 0; i < len; i++) write(s[i]); } void write(const double &x) { ostringstream oss; oss << setprecision(15) << x; string s = oss.str(); write(s); } void write(const long double &x) { ostringstream oss; oss << setprecision(15) << x; string s = oss.str(); write(s); } template <class T, is_modint_t<T> * = nullptr> void write(T &ref) { write(ref.val); } template <class T> void write(const vector<T> &val) { auto n = val.size(); for (size_t i = 0; i < n; i++) { if (i) write(' '); write(val[i]); } } template <class T, class U> void write(const pair<T, U> &val) { write(val.first); write(' '); write(val.second); } template <class A, class B, class C> void write(const tuple<A, B, C> &val) { auto &[a, b, c] = val; write(a), write(' '), write(b), write(' '), write(c); } template <class A, class B, class C, class D> void write(const tuple<A, B, C, D> &val) { auto &[a, b, c, d] = val; write(a), write(' '), write(b), write(' '), write(c), write(' '), write(d); } template <class A, class B, class C, class D, class E> void write(const tuple<A, B, C, D, E> &val) { auto &[a, b, c, d, e] = val; write(a), write(' '), write(b), write(' '), write(c), write(' '), write(d), write(' '), write(e); } template <class A, class B, class C, class D, class E, class F> void write(const tuple<A, B, C, D, E, F> &val) { auto &[a, b, c, d, e, f] = val; write(a), write(' '), write(b), write(' '), write(c), write(' '), write(d), write(' '), write(e), write(' '), write(f); } template <class T, size_t S> void write(const array<T, S> &val) { auto n = val.size(); for (size_t i = 0; i < n; i++) { if (i) write(' '); write(val[i]); } } void write(i128 val) { string s; bool negative = 0; if(val < 0){ negative = 1; val = -val; } while (val) { s += '0' + int(val % 10); val /= 10; } if(negative) s += "-"; reverse(all(s)); if (len(s) == 0) s = "0"; write(s); } }; Scanner scanner = Scanner(stdin); Printer printer = Printer(stdout); void flush() { printer.flush(); } void print() { printer.write('\n'); } template <class Head, class... Tail> void print(Head &&head, Tail &&... tail) { printer.write(head); if (sizeof...(Tail)) printer.write(' '); print(forward<Tail>(tail)...); } void read() {} template <class Head, class... Tail> void read(Head &head, Tail &... tail) { scanner.read(head); read(tail...); } #define INT(...) \ int __VA_ARGS__; \ read(__VA_ARGS__) #define LL(...) \ ll __VA_ARGS__; \ read(__VA_ARGS__) #define STR(...) \ string __VA_ARGS__; \ read(__VA_ARGS__) #define CHAR(...) \ char __VA_ARGS__; \ read(__VA_ARGS__) #define DBL(...) \ double __VA_ARGS__; \ read(__VA_ARGS__) #define VEC(type, name, size) \ vector<type> name(size); \ read(name) #define VV(type, name, h, w) \ vector<vector<type>> name(h, vector<type>(w)); \ read(name) void YES(bool t = 1) { print(t ? "YES" : "NO"); } void NO(bool t = 1) { YES(!t); } void Yes(bool t = 1) { print(t ? "Yes" : "No"); } void No(bool t = 1) { Yes(!t); } void yes(bool t = 1) { print(t ? "yes" : "no"); } void no(bool t = 1) { yes(!t); } #line 2 "/home/maspy/compro/library/ds/unionfind.hpp" struct UnionFind { int num; int comp; vc<int> size, par; UnionFind(int n) : num(n), comp(n), size(n, 1), par(n) { iota(par.begin(), par.end(), 0); } int find(int x) { while (par[x] != x) { par[x] = par[par[x]]; x = par[x]; } return x; } int operator[](int x) { return find(x); } bool merge(ll x, ll y) { x = find(x); y = find(y); if (x == y) { return false; } comp--; if (size[x] < size[y]) swap(x, y); size[x] += size[y]; size[y] = 0; par[y] = x; return true; } vc<int> find_all() { vc<int> A(num); FOR(i, num) A[i] = find(i); return A; } void reset(){ comp = num; size.assign(num, 1); iota(all(par), 0); } }; #line 1 "/home/maspy/compro/library/ds/intervals.hpp" // https://codeforces.com/contest/1638/problem/E // https://codeforces.com/contest/897/problem/E // 持つ値のタイプ T、座標タイプ X // コンストラクタでは T none_val を指定する template <typename T = ll, typename X = ll> struct Intervals { static constexpr X LLIM = numeric_limits<X>::lowest(); static constexpr X RLIM = numeric_limits<X>::max(); const T none_val; // none_val でない区間の個数と長さ合計 int total_num; X total_len; map<X, T> dat; Intervals(T none_val) : none_val(none_val), total_num(0), total_len(0) { dat[LLIM] = none_val; dat[RLIM] = none_val; } tuple<X, X, T> get(X x) { auto it = dat.upper_bound(x); X r = (*it).fi; auto [l, t] = *prev(it); return {l, r, t}; } template <typename ADD, typename RM> void set(X L, X R, T t, ADD& add_f, RM& rm_f) { if (L == R) return; assert(L < R); // 区間 [l, r) を t に変更する // まずは、重なるか隣り合う区間を全列挙 vc<tuple<X, X, T>> tmp; auto it = prev(dat.lower_bound(L)); while (1) { auto [l, t] = *it; if (R < l) break; it = next(it); X r = (*it).fi; tmp.eb(l, r, t); } auto [lx, _, lt] = tmp[0]; auto [__, rx, rt] = tmp.back(); // とりあえず全部削除 for (auto&& [l, r, t]: tmp) { dat.erase(l); if (t == none_val) continue; total_num--; total_len -= r - l; rm_f(l, r, t); } if (lt == t) chmin(L, lx); if (rt == t) chmax(R, rx); if (lx < L) { // [lx, L) dat[lx] = lt; if (lt != none_val) { total_num++; total_len += L - lx; add_f(lx, L, lt); } } if (R < rx) { // [R, rx) dat[R] = rt; if (rt != none_val) { total_num++; total_len += rx - R; add_f(R, rx, rt); } } // [L, R) dat[L] = t; if (t != none_val) { total_num++; total_len += R - L; add_f(L, R, t); } } void set(X L, X R, T t = 1) { auto f = [&](X L, X R, T t) -> void {}; set(L, R, t, f, f); } void erase(X L, X R) { auto f = [&](X L, X R, T t) -> void {}; set(L, R, none_val, f, f); } // L, R 内のデータ (l, r, t) を全部取得する vc<tuple<X, X, T>> get(X L, X R) { vc<tuple<X, X, T>> res; auto it = prev(dat.lower_bound(L)); while (1) { auto [l, t] = *it; if (R <= l) break; it = next(it); X r = (*it).fi; X l0 = max(l, L); X r0 = min(r, R); if (l0 < r0) res.eb(l0, r0, t); } return res; } vc<tuple<X, X, T>> get_all() { return get(LLIM + 1, RLIM); } void debug() { auto it = dat.begin(); print("Intervals"); print("total_num", total_num); print("total_len", total_len); while (1) { auto [l, t] = *it; ++it; if (it == dat.end()) break; X r = (*it).fi; print("l, r, t", l, r, t); } } }; #line 2 "/home/maspy/compro/library/alg/group_add.hpp" template <class X> struct Group_Add { using value_type = X; static constexpr X op(const X &x, const X &y) noexcept { return x + y; } static constexpr X inverse(const X &x) noexcept { return -x; } static constexpr X power(const X &x, ll n) noexcept { return n * x; } static constexpr X unit() { return X(0); } static constexpr bool commute = true; }; #line 3 "/home/maspy/compro/library/ds/fenwick.hpp" template <typename AbelGroup> struct FenwickTree { using E = typename AbelGroup::value_type; int n; vector<E> dat; E total; FenwickTree() : FenwickTree(0) {} FenwickTree(int n) : n(n), total(AbelGroup::unit()) { assert(AbelGroup::commute); dat.assign(n, AbelGroup::unit()); } FenwickTree(vc<E> v) : n(len(v)), total(AbelGroup::unit()) { assert(AbelGroup::commute); FOR(i, n) total = AbelGroup::op(total, v[i]); dat = v; FOR3(i, 1, n + 1) { int j = i + (i & -i); if (j <= n) dat[j - 1] = AbelGroup::op(dat[i - 1], dat[j - 1]); } } void reset(){ total = AbelGroup::unit(); dat.assign(n, AbelGroup::unit()); } E sum(int k) { E ret = AbelGroup::unit(); for (; k > 0; k -= k & -k) ret = AbelGroup::op(ret, dat[k - 1]); return ret; } E sum(int L, int R) { E pos = AbelGroup::unit(); while (L < R) { pos = AbelGroup::op(pos, dat[R - 1]); R -= R & -R; } E neg = AbelGroup::unit(); while (R < L) { neg = AbelGroup::op(neg, dat[L - 1]); L -= L & -L; } return AbelGroup::op(pos, AbelGroup::inverse(neg)); } E sum_all() { return total; } void add(int k, E x) { total = AbelGroup::op(total, x); for (++k; k <= n; k += k & -k) dat[k - 1] = AbelGroup::op(dat[k - 1], x); } template <class F> int max_right(F& check) { assert(check(E(0))); ll i = 0; E s = AbelGroup::unit(); int k = 1; int N = len(dat) + 1; while (2 * k < N) k *= 2; while (k) { if (i + k < N && check(AbelGroup::op(s, dat[i + k - 1]))) { i += k; s = AbelGroup::op(s, dat[i - 1]); } k >>= 1; } return i; } int find_kth(E k) { auto check = [&](E x) -> bool { return x <= k; }; return max_right(check); } void debug() { print("fenwick", dat); } }; #line 2 "/home/maspy/compro/library/graph/base.hpp" template <typename T> struct Edge { int frm, to; T cost; int id; }; template <typename T = int, bool directed = false> struct Graph { int N, M; using cost_type = T; using edge_type = Edge<T>; vector<edge_type> edges; vector<int> indptr; vector<edge_type> csr_edges; bool prepared; class OutgoingEdges { public: OutgoingEdges(const Graph* G, int l, int r) : G(G), l(l), r(r) {} const edge_type* begin() const { if (l == r) { return 0; } return &G->csr_edges[l]; } const edge_type* end() const { if (l == r) { return 0; } return &G->csr_edges[r]; } private: int l, r; const Graph* G; }; bool is_prepared() { return prepared; } constexpr bool is_directed() { return directed; } Graph() : N(0), M(0), prepared(0) {} Graph(int N) : N(N), M(0), prepared(0) {} void add(int frm, int to, T cost = 1, int i = -1) { assert(!prepared); assert(0 <= frm && 0 <= to && to < N); if (i == -1) i = M; auto e = edge_type({frm, to, cost, i}); edges.eb(e); ++M; } // wt, off void read_tree(bool wt = false, int off = 1) { read_graph(N - 1, wt, off); } void read_graph(int M, bool wt = false, int off = 1) { FOR(M) { INT(a, b); a -= off, b -= off; if (!wt) { add(a, b); } else { T c; read(c); add(a, b, c); } } build(); } void read_parent(int off = 1) { FOR3(v, 1, N) { INT(p); p -= off; add(p, v); } build(); } void build() { assert(!prepared); prepared = true; indptr.assign(N + 1, 0); for (auto&& e: edges) { indptr[e.frm + 1]++; if (!directed) indptr[e.to + 1]++; } FOR(v, N) indptr[v + 1] += indptr[v]; auto counter = indptr; csr_edges.resize(indptr.back() + 1); for (auto&& e: edges) { csr_edges[counter[e.frm]++] = e; if (!directed) csr_edges[counter[e.to]++] = edge_type({e.to, e.frm, e.cost, e.id}); } } OutgoingEdges operator[](int v) const { assert(prepared); return {this, indptr[v], indptr[v + 1]}; } void debug() { print("Graph"); if (!prepared) { print("frm to cost id"); for (auto&& e: edges) print(e.frm, e.to, e.cost, e.id); } else { print("indptr", indptr); print("frm to cost id"); FOR(v, N) for (auto&& e: (*this)[v]) print(e.frm, e.to, e.cost, e.id); } } }; #line 2 "/home/maspy/compro/library/graph/degree.hpp" template <typename Graph> vector<int> degree(Graph& G) { vector<int> deg(G.N); for(auto&& e : G.edges) deg[e.frm]++, deg[e.to]++; return deg; } template <typename Graph> pair<vector<int>, vector<int>> degree_inout(Graph& G) { vector<int> indeg(G.N), outdeg(G.N); for (auto&& e: G.edges) { indeg[e.to]++, outdeg[e.frm]++; } return {indeg, outdeg}; } #line 3 "/home/maspy/compro/library/graph/toposort.hpp" // DAG じゃなかったら空配列 // 辞書順最小もできる:O(NlogN) → abc223 template <typename Graph> vc<int> toposort(Graph& G, bool lex_min = false) { assert(G.is_prepared()); assert(G.is_directed()); auto [indeg, outdeg] = degree_inout(G); if (!lex_min) { vc<int> V; ll N = G.N; FOR(v, N) if (indeg[v] == 0) V.eb(v); ll p = 0; while (p < len(V)) { auto v = V[p++]; for (auto&& e: G[v]) { if (--indeg[e.to] == 0) V.eb(e.to); } } if (len(V) < N) { V.clear(); } return V; } else { pqg<int> que; vc<int> V; ll N = G.N; FOR(v, N) if (indeg[v] == 0) que.push(v); while (len(que)) { auto v = que.top(); que.pop(); V.eb(v); for (auto&& e: G[v]) { if (--indeg[e.to] == 0) que.push(e.to); } } if (len(V) < N) { V.clear(); } return V; } } // https://codeforces.com/contest/798/problem/E // toposort の候補をひとつ出力する。チェックはしない。 // 陽にグラフを作らず、何らかのデータ構造で未訪問の行き先を探す想定。 // set_used(v):v を使用済に変更する // find_unused(v):v の行き先を探す。なければ -1 を返すこと。 template <typename F1, typename F2> vc<int> toposort(int N, F1 set_used, F2 find_unused) { vc<int> V; vc<bool> done(N); auto dfs = [&](auto self, ll v) -> void { set_used(v); done[v] = 1; while (1) { int to = find_unused(v); if (to == -1) break; self(self, to); } V.eb(v); }; FOR(v, N) if (!done[v]) dfs(dfs, v); return V; } #line 8 "main.cpp" void solve() { LL(N, M); using T = tuple<ll, ll, ll, ll>; vc<T> dat(N + M); FOR(i, N + M) { LL(a, b, c); if (i < N) { dat[i] = {b, a, c, a}; } else { dat[i] = {a, b, a, c}; } } N = N + M; // 少し伸ばしておく for (auto&& [a, b, c, d]: dat) { if (a == c) { a = 10 * a; c = 10 * c; b = 10 * b - 1; d = 10 * d + 1; } if (b == d) { a = 10 * a - 1; b = 10 * b; c = 10 * c + 1; d = 10 * d; } } // 座圧 ll H = 0, W = 0; { vi X, Y; for (auto&& [a, b, c, d]: dat) { X.eb(a); Y.eb(b); X.eb(c); Y.eb(d); } UNIQUE(X); UNIQUE(Y); for (auto&& [a, b, c, d]: dat) { a = LB(X, a); b = LB(Y, b); c = LB(X, c); d = LB(Y, d); } H = len(X); W = len(Y); } using P = pair<int, int>; vvc<P> datX(H), datY(W); for (auto&& [a, b, c, d]: dat) { if (a == c) datX[a].eb(b, d); } for (auto&& [a, b, c, d]: dat) { if (b == d) datY[b].eb(a, c); } auto shrink = [&](vc<P>& LR) -> void { Intervals<int, int> I(0); for (auto&& [l, r]: LR) { I.set(l, r, 1); } LR.clear(); for (auto&& [l, r, x]: I.get_all()) { if (x == 0) continue; LR.eb(l, r); } }; FOR(x, H) shrink(datX[x]); FOR(y, W) shrink(datY[y]); ll V = 0, E = 0, C = 0; { ll n = 0; FOR(x, H) n += len(datX[x]); FOR(y, W) n += len(datY[y]); V += 2 * n; E += n; } // y を昇順に動かす。マッチする x を数える { ll cross = 0; vvc<int> add_x(W), rm_x(W); FOR(x, H) { for (auto&& [a, b]: datX[x]) { add_x[a].eb(x); rm_x[b].eb(x); } } FenwickTree<Group_Add<int>> bit(H); FOR(y, W) { for (auto&& x: add_x[y]) { bit.add(x, 1); } for (auto&& x: rm_x[y]) { bit.add(x, -1); } for (auto&& [l, r]: datY[y]) { cross += bit.sum(l, r); } } // print("cross", cross); V += cross; E += 2 * cross; } // とりあえず線分に番号を振る vvc<int> IDX(H), IDY(W); int nxt_idx = 0; FOR(x, H) FOR(len(datX[x])) IDX[x].eb(nxt_idx++); int ax = nxt_idx; FOR(y, W) FOR(len(datY[y])) IDY[y].eb(nxt_idx++); int ay = nxt_idx - ax; if (ax > ay) { swap(datX, datY); swap(IDX, IDY); swap(H, W); } const int buf = 6'000'000; Graph<int, 1> G(buf); auto add_edge = [&](int a, int b) -> void { if (a == -1 || b == -1) return; G.add(a, b); }; N = nxt_idx; // 永続セグ木 + 区間辺を張るテクを使う。 // セグ木の各ノードに入っている頂点番号 vc<int> seg(H + H, -1); FOR(i, 1, H) seg[i] = nxt_idx++; FOR(i, 2, H + H) { add_edge(seg[i / 2], seg[i]); } vvc<pair<int, int>> add_x(W); vvc<int> rm_x(W); FOR(x, H) { FOR(i, len(datX[x])) { auto [y1, y2] = datX[x][i]; int idx = IDX[x][i]; add_x[y1].eb(x, idx); rm_x[y2].eb(x); } } auto upd = [&](int x, int new_idx) -> void { // i をコピーノードに張り替え。それにともなって親も変えていく int i = x + H; seg[i] = new_idx; while (i > 1) { i /= 2; seg[i] = nxt_idx++; add_edge(seg[i], seg[2 * i + 0]); add_edge(seg[i], seg[2 * i + 1]); } }; FOR(y, W) { for (auto&& [x, idx]: add_x[y]) { upd(x, idx); } for (auto&& x: rm_x[y]) { upd(x, -1); } FOR(k, len(datY[y])) { auto [l, r] = datY[y][k]; int idx = IDY[y][k]; l += H, r += H; while (l < r) { if (l & 1) add_edge(idx, seg[l++]); if (r & 1) add_edge(idx, seg[--r]); l /= 2, r /= 2; } } } G.build(); int n = nxt_idx; UnionFind uf(n); auto I = toposort(G); assert(len(I) > 0); vc<int> can(buf, 0); FOR(x, H) for (auto&& idx: IDX[x]) { can[idx] = 2; } FOR(y, W) for (auto&& idx: IDY[y]) { can[idx] = 1; } // 1 から行ける for (auto&& v: I) { if (!(can[v] & 1)) continue; for (auto&& e: G[v]) { can[e.to] |= 1; } } // 2 に行ける reverse(all(I)); for (auto&& v: I) { for (auto&& e: G[v]) { if (can[e.to] & 2) can[v] |= 2; } } // どっちにも行けるようなところをマージ FOR(v, n) if (can[v] == 3) { for (auto&& e: G[v]) { if (can[e.to] == 3) { uf.merge(v, e.to); } } } auto comp = uf.find_all(); comp.resize(N); UNIQUE(comp); C = len(comp); print(E - V + C); } signed main() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << setprecision(15); ll T = 1; // LL(T); FOR(T) solve(); return 0; }