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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#443951 | #8525. Mercenaries | ucup-team087# | WA | 0ms | 3912kb | C++20 | 24.1kb | 2024-06-15 16:55:02 | 2024-06-15 16:55:02 |
Judging History
answer
#line 1 "library/my_template.hpp"
#if defined(LOCAL)
#include <my_template_compiled.hpp>
#else
// https://codeforces.com/blog/entry/96344
#pragma GCC optimize("Ofast,unroll-loops")
// いまの CF だとこれ入れると動かない?
// #pragma GCC target("avx2,popcnt")
#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 "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;
#if defined(LOCAL)
#define SHOW(...) \
SHOW_IMPL(__VA_ARGS__, SHOW4, SHOW3, SHOW2, SHOW1)(__VA_ARGS__)
#define SHOW_IMPL(_1, _2, _3, _4, NAME, ...) NAME
#define SHOW1(x) print(#x, "=", (x)), flush()
#define SHOW2(x, y) print(#x, "=", (x), #y, "=", (y)), flush()
#define SHOW3(x, y, z) print(#x, "=", (x), #y, "=", (y), #z, "=", (z)), flush()
#define SHOW4(x, y, z, w) \
print(#x, "=", (x), #y, "=", (y), #z, "=", (z), #w, "=", (w)), flush()
#else
#define SHOW(...)
#endif
#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"
#line 2 "library/geo/base.hpp"
template <typename T>
struct Point {
T x, y;
Point() : x(0), y(0) {}
template <typename A, typename B>
Point(A x, B y) : x(x), y(y) {}
template <typename A, typename B>
Point(pair<A, B> p) : x(p.fi), y(p.se) {}
Point operator+(Point p) const { return {x + p.x, y + p.y}; }
Point operator-(Point p) const { return {x - p.x, y - p.y}; }
bool operator==(Point p) const { return x == p.x && y == p.y; }
bool operator!=(Point p) const { return x != p.x || y != p.y; }
Point operator-() const { return {-x, -y}; }
Point operator*(T t) const { return {x * t, y * t}; }
Point operator/(T t) const { return {x / t, y / t}; }
bool operator<(Point p) const {
if (x != p.x) return x < p.x;
return y < p.y;
}
T dot(Point other) { return x * other.x + y * other.y; }
T det(Point other) { return x * other.y - y * other.x; }
double norm() { return sqrtl(x * x + y * y); }
double angle() { return atan2(y, x); }
Point rotate(double theta) {
static_assert(!is_integral<T>::value);
double c = cos(theta), s = sin(theta);
return Point{c * x - s * y, s * x + c * y};
}
};
#ifdef FASTIO
template <typename T>
void rd(Point<T>& p) {
fastio::rd(p.x), fastio::rd(p.y);
}
template <typename T>
void wt(Point<T>& p) {
fastio::wt(p.x);
fastio::wt(' ');
fastio::wt(p.y);
}
#endif
// A -> B -> C と進むときに、左に曲がるならば +1、右に曲がるならば -1
template <typename T>
int ccw(Point<T> A, Point<T> B, Point<T> C) {
T x = (B - A).det(C - A);
if (x > 0) return 1;
if (x < 0) return -1;
return 0;
}
template <typename REAL, typename T, typename U>
REAL dist(Point<T> A, Point<U> B) {
REAL dx = REAL(A.x) - REAL(B.x);
REAL dy = REAL(A.y) - REAL(B.y);
return sqrt(dx * dx + dy * dy);
}
// ax+by+c
template <typename T>
struct Line {
T a, b, c;
Line(T a, T b, T c) : a(a), b(b), c(c) {}
Line(Point<T> A, Point<T> B) {
a = A.y - B.y, b = B.x - A.x, c = A.x * B.y - A.y * B.x;
}
Line(T x1, T y1, T x2, T y2) : Line(Point<T>(x1, y1), Point<T>(x2, y2)) {}
template <typename U>
U eval(Point<U> P) {
return a * P.x + b * P.y + c;
}
template <typename U>
T eval(U x, U y) {
return a * x + b * y + c;
}
// 同じ直線が同じ a,b,c で表現されるようにする
void normalize() {
static_assert(is_same_v<T, int> || is_same_v<T, long long>);
T g = gcd(gcd(abs(a), abs(b)), abs(c));
a /= g, b /= g, c /= g;
if (b < 0) { a = -a, b = -b, c = -c; }
if (b == 0 && a < 0) { a = -a, b = -b, c = -c; }
}
bool is_parallel(Line other) { return a * other.b - b * other.a == 0; }
bool is_orthogonal(Line other) { return a * other.a + b * other.b == 0; }
};
template <typename T>
struct Segment {
Point<T> A, B;
Segment(Point<T> A, Point<T> B) : A(A), B(B) {}
Segment(T x1, T y1, T x2, T y2)
: Segment(Point<T>(x1, y1), Point<T>(x2, y2)) {}
bool contain(Point<T> C) {
static_assert(is_integral<T>::value);
T det = (C - A).det(B - A);
if (det != 0) return 0;
return (C - A).dot(B - A) >= 0 && (C - B).dot(A - B) >= 0;
}
Line<T> to_Line() { return Line(A, B); }
};
template <typename REAL>
struct Circle {
Point<REAL> O;
REAL r;
Circle(Point<REAL> O, REAL r) : O(O), r(r) {}
Circle(REAL x, REAL y, REAL r) : O(x, y), r(r) {}
template <typename T>
bool contain(Point<T> p) {
REAL dx = p.x - O.x, dy = p.y - O.y;
return dx * dx + dy * dy <= r * r;
}
};
template <typename T>
struct Polygon {
vc<Point<T>> points;
T a;
template <typename A, typename B>
Polygon(vc<pair<A, B>> pairs) {
for (auto&& [a, b]: pairs) points.eb(Point<T>(a, b));
build();
}
Polygon(vc<Point<T>> points) : points(points) { build(); }
int size() { return len(points); }
template <typename REAL>
REAL area() {
return a * 0.5;
}
template <enable_if_t<is_integral<T>::value, int> = 0>
T area_2() {
return a;
}
bool is_convex() {
FOR(j, len(points)) {
int i = (j == 0 ? len(points) - 1 : j - 1);
int k = (j == len(points) - 1 ? 0 : j + 1);
if ((points[j] - points[i]).det(points[k] - points[j]) < 0) return false;
}
return true;
}
private:
void build() {
a = 0;
FOR(i, len(points)) {
int j = (i + 1 == len(points) ? 0 : i + 1);
a += points[i].det(points[j]);
}
if (a < 0) {
a = -a;
reverse(all(points));
}
}
};
#line 2 "library/geo/convex_hull.hpp"
#line 4 "library/geo/convex_hull.hpp"
template <typename T>
vector<int> ConvexHull(vector<pair<T, T>>& XY, string mode = "full",
bool inclusive = false, bool sorted = false) {
assert(mode == "full" || mode == "lower" || mode == "upper");
ll N = XY.size();
if (N == 1) return {0};
if (N == 2) {
if (XY[0] < XY[1]) return {0, 1};
if (XY[1] < XY[0]) return {1, 0};
if (inclusive) return {0, 1};
return {0};
}
vc<int> I = argsort(XY);
auto check = [&](ll i, ll j, ll k) -> bool {
auto xi = XY[i].fi, yi = XY[i].se;
auto xj = XY[j].fi, yj = XY[j].se;
auto xk = XY[k].fi, yk = XY[k].se;
auto dx1 = xj - xi, dy1 = yj - yi;
auto dx2 = xk - xj, dy2 = yk - yj;
T det = dx1 * dy2 - dy1 * dx2;
return (inclusive ? det >= 0 : det > 0);
};
auto calc = [&]() {
vector<int> P;
for (auto&& k: I) {
while (P.size() > 1) {
auto i = P[P.size() - 2];
auto j = P[P.size() - 1];
if (check(i, j, k)) break;
P.pop_back();
}
P.eb(k);
}
return P;
};
vc<int> P;
if (mode == "full" || mode == "lower") {
vc<int> Q = calc();
P.insert(P.end(), all(Q));
}
if (mode == "full" || mode == "upper") {
if (!P.empty()) P.pop_back();
reverse(all(I));
vc<int> Q = calc();
P.insert(P.end(), all(Q));
}
if (mode == "upper") reverse(all(P));
while (len(P) >= 2 && XY[P[0]] == XY[P.back()]) P.pop_back();
return P;
}
template <typename T>
vector<int> ConvexHull(vector<Point<T>>& XY, string mode = "full",
bool inclusive = false, bool sorted = false) {
assert(mode == "full" || mode == "lower" || mode == "upper");
ll N = XY.size();
if (N == 1) return {0};
if (N == 2) {
if (XY[0] < XY[1]) return {0, 1};
if (XY[1] < XY[0]) return {1, 0};
if (inclusive) return {0, 1};
return {0};
}
vc<int> I = argsort(XY);
auto check = [&](ll i, ll j, ll k) -> bool {
auto xi = XY[i].x, yi = XY[i].y;
auto xj = XY[j].x, yj = XY[j].y;
auto xk = XY[k].x, yk = XY[k].y;
auto dx1 = xj - xi, dy1 = yj - yi;
auto dx2 = xk - xj, dy2 = yk - yj;
T det = dx1 * dy2 - dy1 * dx2;
return (inclusive ? det >= 0 : det > 0);
};
auto calc = [&]() {
vector<int> P;
for (auto&& k: I) {
while (P.size() > 1) {
auto i = P[P.size() - 2];
auto j = P[P.size() - 1];
if (check(i, j, k)) break;
P.pop_back();
}
P.eb(k);
}
return P;
};
vc<int> P;
if (mode == "full" || mode == "lower") {
vc<int> Q = calc();
P.insert(P.end(), all(Q));
}
if (mode == "full" || mode == "upper") {
if (!P.empty()) P.pop_back();
reverse(all(I));
vc<int> Q = calc();
P.insert(P.end(), all(Q));
}
if (mode == "upper") reverse(all(P));
while (len(P) >= 2 && XY[P[0]] == XY[P.back()]) P.pop_back();
return P;
}
#line 6 "main.cpp"
using P = Point<ll>;
struct Block {
int N, off;
vc<P> point;
vc<int> I; // upper convex hull indices
P lazy;
Block(vc<P>& B, int L, int R) : N(R - L), off(L), lazy(0, 0) {
point = {B.begin() + L, B.begin() + R};
I = ConvexHull<ll>(point, "upper");
}
P get_vector(int i) {
assert(off <= i && i < off + N);
return point[i - off] + lazy;
}
void apply(int l, int r, P add) {
l -= off, r -= off;
chmax(l, 0), chmin(r, N);
if (l >= r) return;
if (r - l != N) {
// naive update
FOR(i, l, r) point[i] = point[i] + add;
I = ConvexHull<ll>(point, "upper");
return;
}
assert(r - l == N);
lazy = lazy + add;
}
ll max_dot(P p) {
while (len(I) >= 2) {
int i = I[len(I) - 2], j = I[len(I) - 1];
if (point[i].dot(p) < point[j].dot(p)) break;
POP(I);
}
return point[I.back()].dot(p);
}
int query(int l, int r, P p, ll c) {
c -= lazy.dot(p);
l -= off, r -= off;
chmax(l, 0), chmin(r, N);
if (l >= r) return -1;
if (r - l == N && max_dot(p) < c) return -1;
FOR_R(i, l, r) {
if (point[i].dot(p) >= c) return off + i;
}
return -1;
}
};
struct query_type {
ll v, c, id;
P p;
};
void solve() {
LL(N);
vc<P> point(N);
vvc<P> road(N - 1);
FOR(i, N - 1) {
read(point[i]);
LL(n);
VEC(P, dat, n);
vc<int> I = ConvexHull<ll>(dat, "upper");
dat = rearrange(dat, I);
road[i] = dat;
}
read(point[N - 1]);
LL(Q);
vc<query_type> query(Q);
FOR(q, Q) {
LL(v, a, b, c);
query[q].v = v - 1;
query[q].id = q;
query[q].c = c;
query[q].p = P(a, b);
}
sort(all(query), [&](auto& a, auto& b) -> bool { return a.p.det(b.p) < 0; });
// query idx -> road index to change
vvc<int> upd(Q + 1);
FOR(i, N - 1) {
vc<P>& dat = road[i];
FOR(j, len(dat) - 1) {
P a = dat[j], b = dat[j + 1];
// はじめて a > b となる query index
int q = binary_search(
[&](int q) -> bool {
if (q == Q) return 1;
return (query[q].p.dot(a) > query[q].p.dot(b));
},
Q, -1);
upd[q].eb(i);
}
}
FOR(q, Q) UNIQUE(upd[q]);
// とりあえず road[i].back() が採用された状態として,
// 自分 + suffix road sum を求める
vc<P> SM(N);
FOR_R(i, N - 1) SM[i] = SM[i + 1] + road[i].back();
FOR(i, N) SM[i] = SM[i] + point[i];
int b_sz = sqrtl(N);
int b_num = ceil<int>(N, b_sz);
vc<Block> BLOCK;
FOR(i, b_num) {
int L = b_sz * i, R = b_sz * (i + 1);
chmin(R, N);
BLOCK.eb(Block(SM, L, R));
}
auto add_prefix = [&](int n, P add) -> void {
if (add == P(0, 0)) return;
FOR(b, b_num) { BLOCK[b].apply(0, n, add); }
};
auto solve = [&](P p, ll c, ll n) -> int {
FOR_R(b, b_num) {
int ans = BLOCK[b].query(0, n, p, c);
if (ans != -1) return ans;
}
return -1;
};
// 愚直解
vc<int> ANS(Q);
FOR(q, Q) {
for (auto& i: upd[q]) {
P before = road[i].back();
while (len(road[i]) >= 2) {
P a = road[i][len(road[i]) - 2];
P b = road[i][len(road[i]) - 1];
if (query[q].p.dot(a - b) < 0) {
// b のまま
break;
}
POP(road[i]);
}
P after = road[i].back();
P add = after - before;
add_prefix(i + 1, add);
}
ll v = query[q].v;
P p = query[q].p;
// P sub = SM[v] - point[v];
P sub = BLOCK[v / b_sz].get_vector(v) - point[v];
ll c = query[q].c + p.dot(sub);
ll ans = solve(p, c, v + 1);
ANS[query[q].id] = ans;
}
for (auto& x: ANS) {
if (x >= 0) ++x;
print(x);
}
}
signed main() { solve(); }
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3912kb
input:
3 1 1 2 1 2 1 2 3 2 5 1 5 4 3 3 4 5 1 1 2 4 5 12 1 1 1 1 2 1 1 1 3 1 1 1 3 1 1 9 3 2 2 20 3 1 2 18 3 1 2 19 3 1 2 20 3 0 1 8 2 1 0 4 2 1 0 3 2 1 0 2
output:
1 2 3 3 2 2 1 -1 1 -1 2 2
result:
ok 12 numbers
Test #2:
score: 0
Accepted
time: 0ms
memory: 3596kb
input:
2 47 11 1 98 25 9 90 10 1 32 28 1811 2 17 44 4114 1 36 88 2661 2 79 33 3681 1 53 26 2778 2 59 20 2332 2 63 45 4616 2 72 11 10835 1 13 28 919 2 16 59 4445
output:
1 -1 -1 2 -1 1 2 1 1 2
result:
ok 10 numbers
Test #3:
score: -100
Wrong Answer
time: 0ms
memory: 3580kb
input:
3 87 42 5 69 12 82 79 10 88 45 51 40 3 18 6 5 73 100 58 41 40 88 54 5 40 98 31 63 100 3 32 13 1811 1 51 21 5318 1 32 5 2994 2 77 51 19184 2 78 60 1763 1 10 1 913 1 22 51 4057 1 2 5 385 2 50 15 989 2 65 53 1488 1 49 82 7708 2 33 90 1133 1 23 33 3388 1 92 36 9516 3 39 61 10014 2 43 55 1103 2 48 38 127...
output:
3 1 1 1 2 -1 -1 -1 2 2 -1 2 -1 1 2 2 -1 3 2 2 3 1 1 1 -1 1 1 1 3 1 -1 1 -1 1 2 1 2 1 1 1 1 1 -1 1 -1 -1 1 1 -1 -1 1 1 2 1 1 -1 2 -1 1 1 1 -1 3 1 2 3 2 2 1 1 -1 1 -1 3 1 1 1 3 2 1 1 2 1 2 1 2 -1 -1 -1 -1 1 2 1 1 -1 -1 1 3 2 2
result:
wrong answer 62nd numbers differ - expected: '1', found: '-1'