結果

問題 No.2654 [Cherry 6th Tune] Re: start! (Black Sheep)
コンテスト
ユーザー Misuki
提出日時 2025-09-06 15:24:00
言語 C++23
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 451 ms / 7,000 ms
コード長 6,827 bytes
コンパイル時間 2,727 ms
コンパイル使用メモリ 230,568 KB
実行使用メモリ 51,584 KB
最終ジャッジ日時 2025-09-06 15:24:20
合計ジャッジ時間 14,119 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge1
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ファイルパターン 結果
other AC * 40
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 # 

#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <cctype>
#include <cfenv>
#include <cfloat>
#include <chrono>
#include <cinttypes>
#include <climits>
#include <cmath>
#include <complex>
#include <cstdarg>
#include <cstddef>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <deque>
#include <fstream>
#include <functional>
#include <initializer_list>
#include <iomanip>
#include <ios>
#include <iostream>
#include <istream>
#include <iterator>
#include <limits>
#include <list>
#include <map>
#include <memory>
#include <new>
#include <numeric>
#include <ostream>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <stack>
#include <streambuf>
#include <string>
#include <tuple>
#include <type_traits>
#include <variant>
#include <bit>
#include <compare>
#include <concepts>
#include <numbers>
#include <ranges>
#include <span>

#define int ll
#define INT128_MAX (__int128)(((unsigned __int128) 1 << ((sizeof(__int128) * __CHAR_BIT__) - 1)) - 1)
#define INT128_MIN (-INT128_MAX - 1)

#define pb push_back
#define eb emplace_back
#define clock chrono::steady_clock::now().time_since_epoch().count()

using namespace std;

template<class T1, class T2>
ostream& operator<<(ostream& os, const pair<T1, T2> pr) {
  return os << pr.first << ' ' << pr.second;
}
template<class T, size_t N>
ostream& operator<<(ostream& os, const array<T, N> &arr) {
  for(size_t i = 0; T x : arr) {
    os << x;
    if (++i != N) os << ' ';
  }
  return os;
}
template<class T>
ostream& operator<<(ostream& os, const vector<T> &vec) {
  for(size_t i = 0; T x : vec) {
    os << x;
    if (++i != size(vec)) os << ' ';
  }
  return os;
}
template<class T>
ostream& operator<<(ostream& os, const multiset<T> &s) {
  for(size_t i = 0; T x : s) {
    os << x;
    if (++i != size(s)) os << ' ';
  }
  return os;
}
template<class T1, class T2>
ostream& operator<<(ostream& os, const map<T1, T2> &m) {
  for(size_t i = 0; pair<T1, T2> x : m) {
    os << x;
    if (++i != size(m)) os << ' ';
  }
  return os;
}

#ifdef DEBUG
#define dbg(...) cerr << '(', _do(#__VA_ARGS__), cerr << ") = ", _do2(__VA_ARGS__)
template<typename T> void _do(T &&x) { cerr << x; }
template<typename T, typename ...S> void _do(T &&x, S&&...y) { cerr << x << ", "; _do(y...); }
template<typename T> void _do2(T &&x) { cerr << x << endl; }
template<typename T, typename ...S> void _do2(T &&x, S&&...y) { cerr << x << ", "; _do2(y...); }
#else
#define dbg(...)
#endif

using ll = long long;
using ull = unsigned long long;
using ldb = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
//#define double ldb

template<typename T> using min_heap = priority_queue<T, vector<T>, greater<T>>;
template<typename T> using max_heap = priority_queue<T>;

template<ranges::forward_range rng, class T = ranges::range_value_t<rng>, class OP = plus<T>>
void pSum(rng &&v) {
  if (!v.empty())
    for(T p = v[0]; T &x : v | views::drop(1))
      x = p = OP()(p, x);
}
template<ranges::forward_range rng, class T = ranges::range_value_t<rng>, class OP>
void pSum(rng &&v, OP op) {
  if (!v.empty())
    for(T p = v[0]; T &x : v | views::drop(1))
      x = p = op(p, x);
}

template<ranges::forward_range rng>
void Unique(rng &v) {
  ranges::sort(v);
  v.resize(unique(v.begin(), v.end()) - v.begin());
}

template<ranges::random_access_range rng>
rng invPerm(rng p) {
  rng ret = p;
  for(int i = 0; i < ssize(p); i++)
    ret[p[i]] = i;
  return ret;
}

template<ranges::random_access_range rng, ranges::random_access_range rng2>
rng Permute(rng v, rng2 p) {
  rng ret = v;
  for(int i = 0; i < ssize(p); i++)
    ret[p[i]] = v[i];
  return ret;
}

template<bool directed>
vector<vector<int>> readGraph(int n, int m, int base) {
  vector<vector<int>> g(n);
  for(int i = 0; i < m; i++) {
    int u, v; cin >> u >> v;
    u -= base, v -= base;
    g[u].emplace_back(v);
    if constexpr (!directed)
      g[v].emplace_back(u);
  }
  return g;
}

template<class T>
void setBit(T &msk, int bit, bool x) {
  msk = (msk & ~(T(1) << bit)) | (T(x) << bit);
}
template<class T> void flipBit(T &msk, int bit) { msk ^= T(1) << bit; }
template<class T> bool getBit(T msk, int bit) { return msk >> bit & T(1); }

template<class T>
T floorDiv(T a, T b) {
  if (b < 0) a *= -1, b *= -1;
  return a >= 0 ? a / b : (a - b + 1) / b;
}
template<class T>
T ceilDiv(T a, T b) {
  if (b < 0) a *= -1, b *= -1;
  return a >= 0 ? (a + b - 1) / b : a / b;
}

template<class T> bool chmin(T &a, T b) { return a > b ? a = b, 1 : 0; }
template<class T> bool chmax(T &a, T b) { return a < b ? a = b, 1 : 0; }

template<class T1, class T2>
struct dynamic_median {
  multiset<T1> D, U;
  T2 Dsum = 0, Usum = 0;
  void balance() {
    if (ssize(U) > ssize(D) + 1) {
      auto ite = U.begin();
      Usum -= *ite, Dsum += *ite;
      D.insert(*ite), U.erase(ite);
    }
    if (ssize(D) > ssize(U)) {
      auto ite = prev(D.end());
      Dsum -= *ite, Usum += *ite;
      U.insert(*ite), D.erase(ite);
    }
  }
  void insert(T1 x) {
    if (U.empty() or x >= *U.begin())
      U.insert(x), Usum += x;
    else
      D.insert(x), Dsum += x;
    balance();
    dbg(D);
    dbg(U);
  }
  void erase(T1 x) {
    if (auto ite = U.find(x); ite != U.end())
      U.erase(ite), Usum -= x;
    else if (auto ite2 = D.find(x); ite2 != D.end())
      D.erase(ite2), Dsum -= x;
    balance();
    dbg(D);
    dbg(U);
  }
  T1 median() { return *U.begin(); }
  T1 min() { return D.empty() ? *U.begin() : *D.begin(); }
  T1 max() { return *U.rbegin(); }
  uint64_t size() { return ssize(D) + ssize(U); }
};

signed main() {
  ios::sync_with_stdio(false), cin.tie(NULL);

  int n; cin >> n;
  vector<int> a(n + 1);
  for(int &x : a)
    cin >> x;
  vector<vector<int>> g(n + 1);
  for(int i = 0; i < n; i++) {
    int u, v; cin >> u >> v;
    g[u].emplace_back(v);
    g[v].emplace_back(u);
  }

  dynamic_median<int, ll> s;
  vector<ll> ans(n + 1, LLONG_MAX);
  auto dfs = [&](int v, int p, auto self) -> void {
    s.insert(a[v]);
    if (s.size() > 2 and s.min() != s.max()) {
      int mn = s.min();
      s.erase(mn);
      int med = s.median();
      if (med == mn)
        med++;
      ans[v] = min(ans[v], (ssize(s.D) - ssize(s.U)) * med - s.Dsum + s.Usum);
      s.insert(mn);
    }
    if (s.size() > 2 and s.min() != s.max()) {
      int mx = s.max();
      s.erase(mx);
      int med = s.median();
      if (med == mx)
        med--;
      ans[v] = min(ans[v], (ssize(s.D) - ssize(s.U)) * med - s.Dsum + s.Usum);
      s.insert(mx);
    }
    if (s.size() > 2 and s.min() == s.max())
      ans[v] = 1;
    for(int x : g[v])
      if (x != p)
        self(x, v, self);
    s.erase(a[v]);
  };

  dfs(0, -1, dfs);

  for(int i = 1; i <= n; i++)
    cout << (ans[i] == LLONG_MAX ? -1 : ans[i]) << '\n';

  return 0;
}
0