結果

問題 No.2654 [Cherry 6th Tune] Re: start! (Black Sheep)
ユーザー 👑 AngrySadEightAngrySadEight
提出日時 2024-01-05 17:48:30
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
WA  
実行時間 -
コード長 6,570 bytes
コンパイル時間 5,979 ms
コンパイル使用メモリ 231,632 KB
実行使用メモリ 54,956 KB
最終ジャッジ日時 2024-09-27 19:08:41
合計ジャッジ時間 25,639 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge5
このコードへのチャレンジ
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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
6,812 KB
testcase_01 AC 3 ms
6,816 KB
testcase_02 AC 3 ms
6,944 KB
testcase_03 AC 528 ms
16,768 KB
testcase_04 AC 481 ms
16,000 KB
testcase_05 AC 280 ms
10,880 KB
testcase_06 AC 79 ms
6,940 KB
testcase_07 AC 228 ms
9,600 KB
testcase_08 WA -
testcase_09 AC 523 ms
17,004 KB
testcase_10 WA -
testcase_11 WA -
testcase_12 WA -
testcase_13 AC 342 ms
12,416 KB
testcase_14 WA -
testcase_15 AC 633 ms
19,852 KB
testcase_16 AC 278 ms
11,008 KB
testcase_17 AC 566 ms
17,776 KB
testcase_18 WA -
testcase_19 WA -
testcase_20 WA -
testcase_21 WA -
testcase_22 AC 353 ms
13,056 KB
testcase_23 WA -
testcase_24 AC 3 ms
6,944 KB
testcase_25 WA -
testcase_26 AC 3 ms
6,940 KB
testcase_27 WA -
testcase_28 WA -
testcase_29 AC 709 ms
21,732 KB
testcase_30 AC 711 ms
21,744 KB
testcase_31 WA -
testcase_32 AC 714 ms
21,740 KB
testcase_33 AC 890 ms
54,856 KB
testcase_34 AC 464 ms
22,132 KB
testcase_35 AC 756 ms
21,704 KB
testcase_36 AC 762 ms
54,956 KB
testcase_37 AC 755 ms
21,808 KB
testcase_38 AC 800 ms
54,900 KB
testcase_39 AC 2 ms
6,944 KB
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 # 

#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")

#include <algorithm>
#include <atcoder/all>
#include <bitset>
#include <cassert>
#include <cmath>
#include <ctime>
#include <functional>
#include <iomanip>
#include <iostream>
#include <map>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <string>
#include <tuple>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
using namespace std;
using namespace atcoder;
typedef long long ll;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define repr(i, n) for (int i = (int)(n)-1; i >= 0; i--)
#define repk(i, k, n) for (int i = k; i < (int)(n); i++)
#define all(v) v.begin(), v.end()
#define mod1 1000000007
#define mod2 998244353
#define mod3 100000007
#define vi vector<int>
#define vs vector<string>
#define vc vector<char>
#define vl vector<ll>
#define vb vector<bool>
#define vvi vector<vector<int>>
#define vvc vector<vector<char>>
#define vvl vector<vector<ll>>
#define vvb vector<vector<bool>>
#define vvvi vector<vector<vector<int>>>
#define vvvl vector<vector<vector<ll>>>
#define pii pair<int, int>
#define pil pair<int, ll>
#define pli pair<ll, int>
#define pll pair<ll, ll>
#define vpii vector<pair<int, int>>
#define vpll vector<pair<ll, ll>>
#define vvpii vector<vector<pair<int, int>>>
#define vvpll vector<vector<pair<ll, ll>>>

using mint = modint998244353;

template <typename T>
void debug(T e) {
    cerr << e << endl;
}

template <typename T>
void debug(vector<T> &v) {
    rep(i, v.size()) { cerr << v[i] << " "; }
    cerr << endl;
}

template <typename T>
void debug(vector<vector<T>> &v) {
    rep(i, v.size()) {
        rep(j, v[i].size()) { cerr << v[i][j] << " "; }
        cerr << endl;
    }
}

template <typename T>
void debug(vector<pair<T, T>> &v) {
    rep(i, v.size()) { cerr << v[i].first << " " << v[i].second << endl; }
}

template <typename T>
void debug(set<T> &st) {
    for (auto itr = st.begin(); itr != st.end(); itr++) {
        cerr << *itr << " ";
    }
    cerr << endl;
}

template <typename T>
void debug(multiset<T> &ms) {
    for (auto itr = ms.begin(); itr != ms.end(); itr++) {
        cerr << *itr << " ";
    }
    cerr << endl;
}

template <typename T>
void debug(map<T, T> &mp) {
    for (auto itr = mp.begin(); itr != mp.end(); itr++) {
        cerr << itr->first << " " << itr->second << endl;
    }
}

void debug_out() { cerr << endl; }

template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
    cerr << H << " ";
    debug_out(T...);
}

ll my_pow(ll x, ll n, ll mod) {
    // 　繰り返し二乗法．x^nをmodで割った余り．
    ll ret;
    if (n == 0) {
        ret = 1;
    } else if (n % 2 == 1) {
        ret = (x * my_pow((x * x) % mod, n / 2, mod)) % mod;
    } else {
        ret = my_pow((x * x) % mod, n / 2, mod);
    }
    return ret;
}

ll inv(ll x, ll mod) { return my_pow(x, mod - 2, mod); }

struct BMS {
    // 2 個の multiset を用いて中央値を取得する機構
    multiset<ll> ms1;
    multiset<ll> ms2;
    ll sum1 = 0;
    ll sum2 = 0;

    void balance() {
        if (ms1.size() < ms2.size()) {
            auto itr = ms2.begin();
            ms2.erase(itr);
            sum2 -= *itr;
            ms1.insert(*itr);
            sum1 += *itr;
        }
        if (ms1.size() >= ms2.size() + 2) {
            auto itr = ms1.end();
            itr--;
            ms1.erase(itr);
            sum1 -= *itr;
            ms2.insert(*itr);
            sum2 += *itr;
        }
    }

    void insert(ll v) {
        if (v >= *(ms2.begin())) {
            ms2.insert(v);
            sum2 += v;
        } else {
            ms1.insert(v);
            sum1 += v;
        }
        balance();
    }

    void erase(ll v) {
        // 「ひとつだけ」削除する
        if (ms1.find(v) != ms1.end()) {
            ms1.erase(ms1.find(v));
            sum1 -= v;
        } else if (ms2.find(v) != ms2.end()) {
            ms2.erase(ms2.find(v));
            sum2 -= v;
        } else {
            return;
        }
        balance();
    }

    ll get_size() {
        ll siz1 = ms1.size();
        ll siz2 = ms2.size();
        return siz1 + siz2;
    }

    ll get_mean() {
        ll ret;
        if (ms1.size() > ms2.size()) {
            ret = *(ms1.rbegin());
        } else {
            ll ms1max = *(ms1.rbegin());
            ll ms2min = *(ms2.begin());
            ret = (ms1max + ms2min) / 2;
        }
        return ret;
    }

    ll get_score() {
        ll mean = get_mean();
        ll score = (mean * ms1.size() - sum1) + (sum2 - mean * ms2.size());
        return score;
    }

    ll get_min_val() { return *(ms1.begin()); }

    ll get_max_val() { return *(ms2.rbegin()); }
};

ll INF = 1000000000000000002;

void dfs(vector<vector<ll>> &graph, vector<bool> &isvisited, vector<ll> &ans,
         BMS &bms, vector<ll> &A, ll v) {
    isvisited[v] = true;
    bms.insert(A[v]);
    // この状態で問題を解く
    if (bms.get_size() <= 2) {
        ans[v] = -1;
    } else {
        ll anssub = INF;
        ll min_val = bms.get_min_val();
        bms.erase(min_val);
        ll min_mean = bms.get_mean();
        if (min_mean != min_val) {
            ll min_score = bms.get_score();
            anssub = min(anssub, min_score);
        }
        bms.insert(min_val);

        ll max_val = bms.get_max_val();
        bms.erase(max_val);
        ll max_mean = bms.get_mean();
        if (max_mean != max_val) {
            ll max_score = bms.get_score();
            anssub = min(anssub, max_score);
        }
        bms.insert(max_val);

        if (min_val == max_val) {
            anssub = 1;
        }

        ans[v] = anssub;
    }
    for (ll i = 0; i < graph[v].size(); i++) {
        ll x = graph[v][i];
        if (isvisited[x]) {
            continue;
        }
        dfs(graph, isvisited, ans, bms, A, graph[v][i]);
    }
    bms.erase(A[v]);
}

int main() {
    ll N;
    cin >> N;
    vector<ll> A(N + 1);
    for (ll i = 0; i < N + 1; i++) {
        cin >> A[i];
    }
    vector<ll> u(N);
    vector<ll> v(N);
    for (ll i = 0; i < N; i++) {
        cin >> u[i] >> v[i];
    }
    vector<vector<ll>> graph(N + 1, vector<ll>(0));
    for (ll i = 0; i < N; i++) {
        graph[u[i]].push_back(v[i]);
        graph[v[i]].push_back(u[i]);
    }
    BMS bms;
    vector<ll> ans(N + 1, -1);
    vector<bool> isvisited(N + 1, false);
    dfs(graph, isvisited, ans, bms, A, 0);
    for (ll i = 1; i <= N; i++) {
        cout << ans[i] << endl;
    }
}
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