結果

問題 No.2114 01 Matching
ユーザー noshi91
提出日時 2022-10-28 23:09:55
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 550 ms / 5,000 ms
コード長 5,408 bytes
コンパイル時間 1,103 ms
コンパイル使用メモリ 103,084 KB
最終ジャッジ日時 2025-02-08 14:58:39
ジャッジサーバーID
(参考情報)
judge3 / judge5
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 * 2
other AC * 51
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include <iostream>
#include <map>
#include <vector>
//#define NDEBUG
#include <algorithm>
#include <cassert>
#include <cstddef>
#include <cstdint>
#include <iostream>
#include <utility>
#include <vector>
namespace n91 {
using i32 = std::int32_t;
using i64 = std::int64_t;
using u32 = std::uint32_t;
using u64 = std::uint64_t;
using isize = std::ptrdiff_t;
using usize = std::size_t;
struct rep {
struct itr {
usize i;
constexpr itr(const usize i) noexcept : i(i) {}
void operator++() noexcept { ++i; }
constexpr usize operator*() const noexcept { return i; }
constexpr bool operator!=(const itr x) const noexcept { return i != x.i; }
};
const itr f, l;
constexpr rep(const usize f, const usize l) noexcept
: f(std::min(f, l)), l(l) {}
constexpr auto begin() const noexcept { return f; }
constexpr auto end() const noexcept { return l; }
};
struct revrep {
struct itr {
usize i;
constexpr itr(const usize i) noexcept : i(i) {}
void operator++() noexcept { --i; }
constexpr usize operator*() const noexcept { return i; }
constexpr bool operator!=(const itr x) const noexcept { return i != x.i; }
};
const itr f, l;
constexpr revrep(const usize f, const usize l) noexcept
: f(l - 1), l(std::min(f, l) - 1) {}
constexpr auto begin() const noexcept { return f; }
constexpr auto end() const noexcept { return l; }
};
template <class T> auto md_vec(const usize n, const T &value) {
return std::vector<T>(n, value);
}
template <class... Args> auto md_vec(const usize n, Args... args) {
return std::vector<decltype(md_vec(args...))>(n, md_vec(args...));
}
template <class T> constexpr T difference(const T &a, const T &b) noexcept {
return a < b ? b - a : a - b;
}
template <class T> void chmin(T &a, const T &b) noexcept {
if (b < a)
a = b;
}
template <class T> void chmax(T &a, const T &b) noexcept {
if (a < b)
a = b;
}
template <class F> class rec_lambda {
F f;
public:
rec_lambda(F &&f) : f(std::move(f)) {}
template <class... Args> auto operator()(Args &&... args) const {
return f(*this, std::forward<Args>(args)...);
}
};
template <class F> auto make_rec(F &&f) { return rec_lambda<F>(std::move(f)); }
template <class T> T scan() {
T ret;
std::cin >> ret;
return ret;
}
constexpr char eoln = '\n';
template <class T> T ceildiv(const T &l, const T &r) {
return l / r + (l % r != 0 ? 1 : 0);
}
} // namespace n91
#include <deque>
namespace n91 {
void main_() {
const auto solve = [](std::vector<int> lxt, std::vector<int> rxt) -> i64 {
if (lxt.empty()) {
return 0;
}
struct vtx {
int type; // 0:a, 1:b
i64 v;
};
std::vector<vtx> vs;
for (const auto e : lxt) {
vs.push_back({0, e});
}
for (const auto e : rxt) {
vs.push_back({1, e});
}
std::sort(vs.begin(), vs.end(),
[](const auto &l, const auto &r) { return l.v < r.v; });
struct aque {
std::deque<std::pair<i64, i64>> v;
i64 a;
aque() : v(), a(0) {}
void push_front(i64 x, i64 l) { v.push_front({x - a, l}); }
void push_back(i64 x, i64 l) { v.push_back({x - a, l}); }
bool empty() { return v.empty(); }
i64 front() { return v.front().first + a; }
std::pair<i64, i64> pop_front() {
auto ret = v.front();
v.pop_front();
return {ret.first + a, ret.second};
}
std::pair<i64, i64> pop_back() {
auto ret = v.back();
v.pop_back();
return {ret.first + a, ret.second};
}
void add(i64 x) { a += x; }
};
i64 min_pos = 0;
i64 min_val = 0;
aque m, r;
r.push_back(1e10, 3e5);
const auto shift = [&]() {
auto [s, len] = m.pop_front();
min_pos += len;
min_val += s * len;
};
i64 prev = 0;
for (const auto &[type, x] : vs) {
const i64 dif = (x - prev);
min_val += dif * (-min_pos);
m.add(-dif);
r.add(dif);
while (!m.empty() && m.front() < 0) {
shift();
}
if (type == 0) {
min_pos -= 1;
assert(!r.empty());
auto [s, len] = r.pop_front();
m.push_back(s, 1);
if (len - 1 != 0) {
r.push_front(s, len - 1);
}
} else {
m.push_front(0, 1);
i64 m_r = 1;
while (m_r != 0) {
assert(!m.empty());
auto [s, len] = m.pop_back();
const i64 t = std::min(len, m_r);
r.push_front(s, t);
m_r -= t;
if (len - t != 0) {
m.push_back(s, len - t);
}
}
}
prev = x;
}
while (!m.empty()) {
shift();
}
return min_val;
};
int N, M, K;
std::cin >> N >> M >> K;
std::vector<int> B(N), R(M);
for (auto &e : B) {
std::cin >> e;
}
for (auto &e : R) {
std::cin >> e;
}
if (N > M) {
std::swap(N, M);
std::swap(B, R);
}
std::map<int, std::pair<std::vector<int>, std::vector<int>>> map;
for (const auto e : B) {
map[e % K].first.push_back(e / K);
}
for (const auto e : R) {
map[e % K].second.push_back(e / K);
}
long long ans = 0;
for (auto &[key, val] : map) {
auto &[l, r] = val;
if (l.size() > r.size()) {
std::cout << "-1\n";
return;
}
ans += solve(l, r);
}
std::cout << ans << eoln;
}
} // namespace n91
int main() {
n91::main_();
return 0;
}
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