結果
| 問題 | No.2478 Disjoint-Sparse-Table Optimization |
| ユーザー |
 maspy
|
| 提出日時 | 2023-11-30 12:57:47 |
| 言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
| 結果 |
AC
|
| 実行時間 | 6 ms / 2,000 ms |
| コード長 | 18,806 bytes |
| コンパイル時間 | 6,335 ms |
| コンパイル使用メモリ | 334,380 KB |
| 実行使用メモリ | 5,376 KB |
| 最終ジャッジ日時 | 2024-09-26 13:56:37 |
| 合計ジャッジ時間 | 7,124 ms |
|
ジャッジサーバーID （参考情報） |
judge4 / judge1 |
（要ログイン）
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 | 2 ms
5,248 KB |
| testcase_01 | AC | 2 ms
5,248 KB |
| testcase_02 | AC | 2 ms
5,376 KB |
| testcase_03 | AC | 4 ms
5,376 KB |
| testcase_04 | AC | 4 ms
5,376 KB |
| testcase_05 | AC | 3 ms
5,376 KB |
| testcase_06 | AC | 3 ms
5,376 KB |
| testcase_07 | AC | 5 ms
5,376 KB |
| testcase_08 | AC | 5 ms
5,376 KB |
| testcase_09 | AC | 4 ms
5,376 KB |
| testcase_10 | AC | 6 ms
5,376 KB |
| testcase_11 | AC | 5 ms
5,376 KB |
| testcase_12 | AC | 3 ms
5,376 KB |
| testcase_13 | AC | 5 ms
5,376 KB |
ソースコード
#line 1 "/home/maspy/compro/library/my_template.hpp"
#if defined(LOCAL)
#include <my_template_compiled.hpp>
#else
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using u32 = unsigned int;
using u64 = unsigned long long;
using i128 = __int128;
using u128 = unsigned __int128;
using f128 = __float128;
template <class T>
constexpr T infty = 0;
template <>
constexpr int infty<int> = 1'000'000'000;
template <>
constexpr ll infty<ll> = ll(infty<int>) * infty<int> * 2;
template <>
constexpr u32 infty<u32> = infty<int>;
template <>
constexpr u64 infty<u64> = infty<ll>;
template <>
constexpr i128 infty<i128> = i128(infty<ll>) * infty<ll>;
template <>
constexpr double infty<double> = infty<ll>;
template <>
constexpr long double infty<long double> = infty<ll>;
using pi = pair<ll, ll>;
using vi = vector<ll>;
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 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 overload4(a, b, c, d, e, ...) e
#define overload3(a, b, c, d, ...) d
#define FOR(...) overload4(__VA_ARGS__, FOR4, FOR3, FOR2, FOR1)(__VA_ARGS__)
#define FOR_R(...) overload3(__VA_ARGS__, 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
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); }
int popcnt_mod_2(int x) { return __builtin_parity(x); }
int popcnt_mod_2(u32 x) { return __builtin_parity(x); }
int popcnt_mod_2(ll x) { return __builtin_parityll(x); }
int popcnt_mod_2(u64 x) { return __builtin_parityll(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>
T floor(T a, T b) {
return a / b - (a % b && (a ^ b) < 0);
}
template <typename T>
T ceil(T x, T y) {
return floor(x + y - 1, y);
}
template <typename T>
T bmod(T x, T y) {
return x - y * floor(x, y);
}
template <typename T>
pair<T, T> divmod(T x, T y) {
T q = floor(x, y);
return {q, x - q * y};
}
template <typename T, typename U>
T SUM(const vector<U> &A) {
T sm = 0;
for (auto &&a: A) sm += a;
return sm;
}
#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()), x.shrink_to_fit()
template <typename T>
T POP(deque<T> &que) {
T a = que.front();
que.pop_front();
return a;
}
template <typename T>
T POP(pq<T> &que) {
T a = que.top();
que.pop();
return a;
}
template <typename T>
T POP(pqg<T> &que) {
T a = que.top();
que.pop();
return a;
}
template <typename T>
T POP(vc<T> &que) {
T a = que.back();
que.pop_back();
return a;
}
template <typename F>
ll binary_search(F check, ll ok, ll ng, bool check_ok = true) {
if (check_ok) assert(check(ok));
while (abs(ok - ng) > 1) {
auto x = (ng + ok) / 2;
(check(x) ? ok : ng) = x;
}
return ok;
}
template <typename F>
double binary_search_real(F check, double ok, double ng, int iter = 100) {
FOR(iter) {
double x = (ok + ng) / 2;
(check(x) ? ok : ng) = x;
}
return (ok + ng) / 2;
}
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);
}
// ? は -1
vc<int> s_to_vi(const string &S, char first_char) {
vc<int> A(S.size());
FOR(i, S.size()) { A[i] = (S[i] != '?' ? S[i] - first_char : -1); }
return A;
}
template <typename T, typename U>
vector<T> cumsum(vector<U> &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;
}
// stable sort
template <typename T>
vector<int> argsort(const vector<T> &A) {
vector<int> ids(len(A));
iota(all(ids), 0);
sort(all(ids),
[&](int i, int j) { return (A[i] == A[j] ? i < j : A[i] < A[j]); });
return ids;
}
// A[I[0]], A[I[1]], ...
template <typename T>
vc<T> rearrange(const vc<T> &A, const vc<int> &I) {
vc<T> B(len(I));
FOR(i, len(I)) B[i] = A[I[i]];
return B;
}
#endif
#line 1 "/home/maspy/compro/library/other/io.hpp"
#define FASTIO
#include <unistd.h>
// https://judge.yosupo.jp/submission/21623
namespace fastio {
static constexpr uint32_t SZ = 1 << 17;
char ibuf[SZ];
char obuf[SZ];
char out[100];
// pointer of ibuf, obuf
uint32_t pil = 0, pir = 0, por = 0;
struct Pre {
char num[10000][4];
constexpr Pre() : num() {
for (int i = 0; i < 10000; i++) {
int n = i;
for (int j = 3; j >= 0; j--) {
num[i][j] = n % 10 | '0';
n /= 10;
}
}
}
} constexpr pre;
inline void load() {
memcpy(ibuf, ibuf + pil, pir - pil);
pir = pir - pil + fread(ibuf + pir - pil, 1, SZ - pir + pil, stdin);
pil = 0;
if (pir < SZ) ibuf[pir++] = '\n';
}
inline void flush() {
fwrite(obuf, 1, por, stdout);
por = 0;
}
void rd(char &c) {
do {
if (pil + 1 > pir) load();
c = ibuf[pil++];
} while (isspace(c));
}
void rd(string &x) {
x.clear();
char c;
do {
if (pil + 1 > pir) load();
c = ibuf[pil++];
} while (isspace(c));
do {
x += c;
if (pil == pir) load();
c = ibuf[pil++];
} while (!isspace(c));
}
template <typename T>
void rd_real(T &x) {
string s;
rd(s);
x = stod(s);
}
template <typename T>
void rd_integer(T &x) {
if (pil + 100 > pir) load();
char c;
do
c = ibuf[pil++];
while (c < '-');
bool minus = 0;
if constexpr (is_signed<T>::value || is_same_v<T, i128>) {
if (c == '-') { minus = 1, c = ibuf[pil++]; }
}
x = 0;
while ('0' <= c) { x = x * 10 + (c & 15), c = ibuf[pil++]; }
if constexpr (is_signed<T>::value || is_same_v<T, i128>) {
if (minus) x = -x;
}
}
void rd(int &x) { rd_integer(x); }
void rd(ll &x) { rd_integer(x); }
void rd(i128 &x) { rd_integer(x); }
void rd(u32 &x) { rd_integer(x); }
void rd(u64 &x) { rd_integer(x); }
void rd(u128 &x) { rd_integer(x); }
void rd(double &x) { rd_real(x); }
void rd(long double &x) { rd_real(x); }
void rd(f128 &x) { rd_real(x); }
template <class T, class U>
void rd(pair<T, U> &p) {
return rd(p.first), rd(p.second);
}
template <size_t N = 0, typename T>
void rd_tuple(T &t) {
if constexpr (N < std::tuple_size<T>::value) {
auto &x = std::get<N>(t);
rd(x);
rd_tuple<N + 1>(t);
}
}
template <class... T>
void rd(tuple<T...> &tpl) {
rd_tuple(tpl);
}
template <size_t N = 0, typename T>
void rd(array<T, N> &x) {
for (auto &d: x) rd(d);
}
template <class T>
void rd(vc<T> &x) {
for (auto &d: x) rd(d);
}
void read() {}
template <class H, class... T>
void read(H &h, T &... t) {
rd(h), read(t...);
}
void wt(const char c) {
if (por == SZ) flush();
obuf[por++] = c;
}
void wt(const string s) {
for (char c: s) wt(c);
}
void wt(const char *s) {
size_t len = strlen(s);
for (size_t i = 0; i < len; i++) wt(s[i]);
}
template <typename T>
void wt_integer(T x) {
if (por > SZ - 100) flush();
if (x < 0) { obuf[por++] = '-', x = -x; }
int outi;
for (outi = 96; x >= 10000; outi -= 4) {
memcpy(out + outi, pre.num[x % 10000], 4);
x /= 10000;
}
if (x >= 1000) {
memcpy(obuf + por, pre.num[x], 4);
por += 4;
} else if (x >= 100) {
memcpy(obuf + por, pre.num[x] + 1, 3);
por += 3;
} else if (x >= 10) {
int q = (x * 103) >> 10;
obuf[por] = q | '0';
obuf[por + 1] = (x - q * 10) | '0';
por += 2;
} else
obuf[por++] = x | '0';
memcpy(obuf + por, out + outi + 4, 96 - outi);
por += 96 - outi;
}
template <typename T>
void wt_real(T x) {
ostringstream oss;
oss << fixed << setprecision(15) << double(x);
string s = oss.str();
wt(s);
}
void wt(int x) { wt_integer(x); }
void wt(ll x) { wt_integer(x); }
void wt(i128 x) { wt_integer(x); }
void wt(u32 x) { wt_integer(x); }
void wt(u64 x) { wt_integer(x); }
void wt(u128 x) { wt_integer(x); }
void wt(double x) { wt_real(x); }
void wt(long double x) { wt_real(x); }
void wt(f128 x) { wt_real(x); }
template <class T, class U>
void wt(const pair<T, U> val) {
wt(val.first);
wt(' ');
wt(val.second);
}
template <size_t N = 0, typename T>
void wt_tuple(const T t) {
if constexpr (N < std::tuple_size<T>::value) {
if constexpr (N > 0) { wt(' '); }
const auto x = std::get<N>(t);
wt(x);
wt_tuple<N + 1>(t);
}
}
template <class... T>
void wt(tuple<T...> tpl) {
wt_tuple(tpl);
}
template <class T, size_t S>
void wt(const array<T, S> val) {
auto n = val.size();
for (size_t i = 0; i < n; i++) {
if (i) wt(' ');
wt(val[i]);
}
}
template <class T>
void wt(const vector<T> val) {
auto n = val.size();
for (size_t i = 0; i < n; i++) {
if (i) wt(' ');
wt(val[i]);
}
}
void print() { wt('\n'); }
template <class Head, class... Tail>
void print(Head &&head, Tail &&... tail) {
wt(head);
if (sizeof...(Tail)) wt(' ');
print(forward<Tail>(tail)...);
}
// gcc expansion. called automaticall after main.
void __attribute__((destructor)) _d() { flush(); }
} // namespace fastio
using fastio::read;
using fastio::print;
using fastio::flush;
#define INT(...) \
int __VA_ARGS__; \
read(__VA_ARGS__)
#define LL(...) \
ll __VA_ARGS__; \
read(__VA_ARGS__)
#define U32(...) \
u32 __VA_ARGS__; \
read(__VA_ARGS__)
#define U64(...) \
u64 __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 3 "main.cpp"
#define rep(i, a, b) for (int i = (int)(a); i < (int)(b); i++)
#define ALL(v) (v).begin(), (v).end()
const int inf = 0x3fffffff;
const ll INF = 0x1fffffffffffffff;
// https://judge.yosupo.jp/submission/81021
class GeneralWeightedMatching {
struct E {
int u, v;
ll w;
};
int n, m, in;
vector<vector<E>> G;
vector<int> mate, slack, root, par, isS, used;
vector<vector<int>> flower, belong;
vector<ll> dual;
queue<int> que;
ll dist(const E& e) { return dual[e.u] + dual[e.v] - e.w; }
void update(int u, int v) {
if (!slack[v] or dist(G[u][v]) < dist(G[slack[v]][v])) slack[v] = u;
}
void recalc(int v) {
slack[v] = 0;
rep(i, 1, n + 1) if (G[i][v].w and root[i] != v and isS[root[i]] == 1)
update(i, v);
}
void push(int v) {
if (v <= n)
que.push(v);
else
for (auto& nxt: flower[v]) push(nxt);
}
void set(int v, int rt) {
root[v] = rt;
if (v > n)
for (auto& nxt: flower[v]) set(nxt, rt);
}
int findeven(int b, int v) {
int pos = find(ALL(flower[b]), v) - flower[b].begin();
if (pos & 1) {
reverse(flower[b].begin() + 1, flower[b].end());
pos = flower[b].size() - pos;
}
return pos;
}
void match(int u, int v) {
mate[u] = G[u][v].v;
if (u > n) {
int x = belong[u][G[u][v].u];
int pos = findeven(u, x);
rep(i, 0, pos) match(flower[u][i], flower[u][i ^ 1]);
match(x, v);
rotate(flower[u].begin(), flower[u].begin() + pos, flower[u].end());
}
}
void link(int u, int v) {
for (;;) {
int nv = root[mate[u]];
match(u, v);
if (!nv) break;
v = nv, u = root[par[nv]];
match(v, u);
}
}
void make(int u, int v, int lca) {
int id = n + 1;
while (id <= m and root[id]) id++;
if (id > m) m++;
flower[id].clear();
rep(i, 1, m + 1) G[id][i].w = G[i][id].w = 0;
rep(i, 1, n + 1) belong[id][i] = 0;
isS[id] = 1, dual[id] = 0, mate[id] = mate[lca];
while (u != lca) {
flower[id].push_back(u);
u = root[mate[u]];
push(u);
flower[id].push_back(u);
u = root[par[u]];
}
flower[id].push_back(lca);
reverse(ALL(flower[id]));
while (v != lca) {
flower[id].push_back(v);
v = root[mate[v]];
push(v);
flower[id].push_back(v);
v = root[par[v]];
}
set(id, id);
for (auto& c: flower[id]) {
rep(i, 1, m + 1) if (!G[id][i].w or dist(G[c][i]) < dist(G[id][i])) {
G[id][i] = G[c][i], G[i][id] = G[i][c];
}
rep(i, 1, n + 1) if (belong[c][i]) belong[id][i] = c;
}
recalc(id);
}
void expand(int b) {
for (auto& c: flower[b]) set(c, c);
int x = belong[b][G[b][par[b]].u];
isS[x] = 2, par[x] = par[b];
int pos = findeven(b, x);
for (int i = 0; i < pos; i += 2) {
int T = flower[b][i], S = flower[b][i + 1];
isS[S] = 1, isS[T] = 2;
par[T] = G[S][T].u;
slack[S] = slack[T] = 0;
push(S);
}
rep(i, pos + 1, flower[b].size()) {
isS[flower[b][i]] = 0;
recalc(flower[b][i]);
}
flower[b].clear();
root[b] = 0;
}
bool path(const E& e) {
int u = root[e.u], v = root[e.v];
if (!isS[v]) {
par[v] = e.u;
isS[v] = 2;
int nu = root[mate[v]];
slack[v] = slack[nu] = 0;
isS[nu] = 1;
push(nu);
} else if (isS[v] == 1) {
int lca = 0, bu = u, bv = v;
in++;
while (bu) {
used[bu] = in;
bu = root[mate[bu]];
if (bu) bu = root[par[bu]];
}
while (bv) {
if (used[bv] == in) {
lca = bv;
break;
}
bv = root[mate[bv]];
if (bv) bv = root[par[bv]];
}
if (lca)
make(u, v, lca);
else {
link(u, v), link(v, u);
return true;
}
}
return false;
}
bool augment() {
isS = slack = par = vector<int>(n * 2);
que = queue<int>();
rep(i, 1, m + 1) if (root[i] == i and !mate[i]) {
isS[i] = 1;
push(i);
}
if (que.empty()) return false;
for (;;) {
while (!que.empty()) {
int v = que.front();
que.pop();
rep(i, 1, n + 1) if (G[v][i].w and root[i] != root[v]) {
if (!dist(G[v][i])) {
if (path(G[v][i])) return true;
} else if (isS[root[i]] != 2)
update(v, root[i]);
}
}
ll delta = INF;
rep(i, n + 1, m + 1) if (root[i] == i and isS[i] == 2)
chmin(delta, dual[i] / 2);
rep(i, 1, m + 1) if (root[i] == i and slack[i] and isS[i] != 2) {
if (!isS[i])
chmin(delta, dist(G[slack[i]][i]));
else
chmin(delta, dist(G[slack[i]][i]) / 2);
}
rep(i, 1, n + 1) {
if (isS[root[i]] == 1) {
dual[i] -= delta;
if (dual[i] <= 0) return false;
} else if (isS[root[i]] == 2)
dual[i] += delta;
}
rep(i, n + 1, m + 1) if (root[i] == i and isS[i]) {
if (isS[i] == 1)
dual[i] += delta * 2;
else
dual[i] -= delta * 2;
}
rep(i, 1, m + 1) if (root[i] == i and slack[i] and root[slack[i]] != i) {
if (dist(G[slack[i]][i]) == 0 and path(G[slack[i]][i])) return true;
}
rep(i, n + 1, m + 1) if (root[i] == i and isS[i] == 2 and dual[i] == 0)
expand(i);
}
}
public:
GeneralWeightedMatching(int _n)
: n(_n),
m(n),
in(0),
G(n * 2, vector<E>(n * 2)),
mate(n * 2),
root(n * 2),
used(n * 2),
flower(n * 2),
belong(n * 2, vector<int>(n * 2)),
dual(n * 2) {
rep(i, 0, n + 1) {
root[i] = i;
belong[i][i] = i;
if (i) dual[i] = INF;
rep(j, 0, n + 1) G[i][j] = E{i, j, 0};
}
}
void add_edge(int u, int v, ll w) {
u++, v++;
chmax(G[u][v].w, w * 2);
chmax(G[v][u].w, w * 2);
}
vector<int> run() {
while (augment())
;
vector<int> res(n, -1);
rep(i, 1, n + 1) if (mate[i]) res[i - 1] = mate[i] - 1;
return res;
}
};
void solve() {
LL(N);
vi L(N), R(N);
FOR(i, N) {
LL(a, b);
L[i] = a - 1, R[i] = b - 1;
}
VEC(ll, A, 2 * N - 1);
auto Ac = cumsum<ll>(A);
ll ANS = 0;
FOR(i, N) ANS += Ac[R[i]] - Ac[L[i]];
vv(ll, mat, N, N);
FOR(i, N) FOR(j, N) {
if (L[i] < L[j] && L[j] < R[i] && R[i] < R[j]) {
ll w = Ac[R[i]] - Ac[L[j]];
mat[i][j] = mat[j][i] = w;
}
}
GeneralWeightedMatching X(N);
FOR(j, N) FOR(i, j) if (mat[i][j] > 0) X.add_edge(i, j, mat[i][j]);
auto match = X.run();
FOR(i, N) {
int j = match[i];
if (i < j) { ANS -= mat[i][j]; }
}
// print(match);
print(ANS);
}
signed main() {
solve();
return 0;
}