結果
問題 | No.1537 私の代わりに仕事やっといてください。 |
ユーザー | keijak |
提出日時 | 2021-06-06 19:38:48 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,423 bytes |
コンパイル時間 | 4,509 ms |
コンパイル使用メモリ | 380,748 KB |
実行使用メモリ | 33,368 KB |
最終ジャッジ日時 | 2024-05-05 01:54:27 |
合計ジャッジ時間 | 7,549 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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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 | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
ソースコード
#include <bits/stdc++.h> #define REP_(i, a_, b_, a, b, ...) \ for (int i = (a), END_##i = (b); i < END_##i; ++i) #define REP(i, ...) REP_(i, __VA_ARGS__, __VA_ARGS__, 0, __VA_ARGS__) #define ALL(x) std::begin(x), std::end(x) using i64 = long long; #include <boost/multiprecision/cpp_int.hpp> using i128 = boost::multiprecision::int128_t; // using Int = boost::multiprecision::cpp_int; using Int = long long; template <typename T, typename U> inline bool chmax(T &a, U b) { return a < b and ((a = std::move(b)), true); } template <typename T, typename U> inline bool chmin(T &a, U b) { return a > b and ((a = std::move(b)), true); } template <typename T> inline int ssize(const T &a) { return (int)std::size(a); } template <typename T> std::istream &operator>>(std::istream &is, std::vector<T> &a) { for (auto &x : a) is >> x; return is; } template <typename T, typename U> std::ostream &operator<<(std::ostream &os, const std::pair<T, U> &a) { return os << "(" << a.first << ", " << a.second << ")"; } template <typename Container> std::ostream &print_seq(const Container &a, std::string_view sep = " ", std::string_view ends = "\n", std::ostream &os = std::cout) { auto b = std::begin(a), e = std::end(a); for (auto it = std::begin(a); it != e; ++it) { if (it != b) os << sep; os << *it; } return os << ends; } template <typename T, typename = void> struct is_iterable : std::false_type {}; template <typename T> struct is_iterable<T, std::void_t<decltype(std::begin(std::declval<T>())), decltype(std::end(std::declval<T>()))>> : std::true_type {}; template <typename T, typename = std::enable_if_t< is_iterable<T>::value && !std::is_same<T, std::string_view>::value && !std::is_same<T, std::string>::value>> std::ostream &operator<<(std::ostream &os, const T &a) { return print_seq(a, ", ", "", (os << "{")) << "}"; } #ifdef ENABLE_DEBUG #include "debug_dump.hpp" #else #define DUMP(...) #endif using namespace std; struct UnionFind { int n; mutable std::vector<int> parent; // positive: parent, negative: size int num_roots; explicit UnionFind(int sz) : n(sz), parent(sz, -1), num_roots(sz) {} bool unite(int x, int y) { x = find(x), y = find(y); if (x == y) return false; if (-parent[x] < -parent[y]) std::swap(x, y); parent[x] += parent[y]; parent[y] = x; --num_roots; return true; } int find(int v) const { if (parent[v] < 0) return v; return parent[v] = find(parent[v]); } int size(int v) const { return -parent[find(v)]; } bool same(int x, int y) const { return find(x) == find(y); } std::vector<int> roots() const { std::vector<int> res; res.reserve(num_roots); for (int i = 0; i < n; ++i) { if (parent[i] < 0) res.push_back(i); } return res; } }; vector<int> solve() { int n; cin >> n; vector<Int> a(n); REP(i, n) cin >> a[i]; if (n == 2) { vector<int> ans = {1, 2, 1}; return ans; } vector<int> ix(n); REP(i, n) ix[i] = i; sort(ALL(ix), [&](int i, int j) { return a[i] < a[j]; }); priority_queue<tuple<Int, int, int>> pq; for (int i = n - 1; i > 0; --i) { int vi = ix[i]; int vj = ix[i - 1]; pq.emplace(a[vi] * a[vj], i, i - 1); } UnionFind uf(n); map<int, vector<int>> visited; int count = 0; while (pq.size() and count < n) { auto [prod, i, j] = pq.top(); pq.pop(); int vi = ix[i]; int vj = ix[j]; if (ssize(visited[vi]) < 2 and ssize(visited[vj]) < 2) { if (count == n - 1 or not uf.same(vi, vj)) { uf.unite(vi, vj); ++count; visited[vi].push_back(vj); visited[vj].push_back(vi); DUMP(count, vi, vj, visited); } } if (count == n) break; if (j > 0 and ssize(visited[vi]) < 2) { Int ak = a[ix[j - 1]]; pq.emplace(a[vi] * ak, i, j - 1); } } assert(count == n); int cur = 0; vector<int> ans; ans.push_back(1); vector<char> done(n); int done_count = 0; while (done_count < n) { for (auto x : visited[cur]) { if (done[x]) continue; done[x] = 1; done_count += 1; ans.push_back(x + 1); cur = x; } } return ans; } int main() { ios_base::sync_with_stdio(false), cin.tie(nullptr); print_seq(solve()); }