結果

問題 No.2321 Continuous Flip
ユーザー tokusakuraitokusakurai
提出日時 2023-05-26 22:51:20
言語 C++17(gcc12)
(gcc 12.3.0 + boost 1.87.0)
結果
AC  
実行時間 370 ms / 2,000 ms
コード長 5,885 bytes
コンパイル時間 3,185 ms
コンパイル使用メモリ 214,564 KB
実行使用メモリ 50,020 KB
最終ジャッジ日時 2024-12-25 09:30:14
合計ジャッジ時間 12,718 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge3
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 * 4
other AC * 30
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 <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (n); i++)
#define per(i, n) for (int i = (n)-1; i >= 0; i--)
#define rep2(i, l, r) for (int i = (l); i < (r); i++)
#define per2(i, l, r) for (int i = (r)-1; i >= (l); i--)
#define each(e, v) for (auto &e : v)
#define MM << " " <<
#define pb push_back
#define eb emplace_back
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define sz(x) (int)x.size()
using ll = long long;
using pii = pair<int, int>;
using pil = pair<int, ll>;
using pli = pair<ll, int>;
using pll = pair<ll, ll>;

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

template <typename T>
using maxheap = priority_queue<T>;

template <typename T>
bool chmax(T &x, const T &y) {
    return (x < y) ? (x = y, true) : false;
}

template <typename T>
bool chmin(T &x, const T &y) {
    return (x > y) ? (x = y, true) : false;
}

template <typename T>
int flg(T x, int i) {
    return (x >> i) & 1;
}

int popcount(int x) { return __builtin_popcount(x); }
int popcount(ll x) { return __builtin_popcountll(x); }
int topbit(int x) { return (x == 0 ? -1 : 31 - __builtin_clz(x)); }
int topbit(ll x) { return (x == 0 ? -1 : 63 - __builtin_clzll(x)); }
int botbit(int x) { return (x == 0 ? -1 : __builtin_ctz(x)); }
int botbit(ll x) { return (x == 0 ? -1 : __builtin_ctzll(x)); }

template <typename T>
void print(const vector<T> &v, T x = 0) {
    int n = v.size();
    for (int i = 0; i < n; i++) cout << v[i] + x << (i == n - 1 ? '\n' : ' ');
    if (v.empty()) cout << '\n';
}

template <typename T>
void printn(const vector<T> &v, T x = 0) {
    int n = v.size();
    for (int i = 0; i < n; i++) cout << v[i] + x << '\n';
}

template <typename T>
int lb(const vector<T> &v, T x) {
    return lower_bound(begin(v), end(v), x) - begin(v);
}

template <typename T>
int ub(const vector<T> &v, T x) {
    return upper_bound(begin(v), end(v), x) - begin(v);
}

template <typename T>
void rearrange(vector<T> &v) {
    sort(begin(v), end(v));
    v.erase(unique(begin(v), end(v)), end(v));
}

template <typename T>
vector<int> id_sort(const vector<T> &v, bool greater = false) {
    int n = v.size();
    vector<int> ret(n);
    iota(begin(ret), end(ret), 0);
    sort(begin(ret), end(ret), [&](int i, int j) { return greater ? v[i] > v[j] : v[i] < v[j]; });
    return ret;
}

template <typename T>
void reorder(vector<T> &a, const vector<int> &ord) {
    int n = a.size();
    vector<T> b(n);
    for (int i = 0; i < n; i++) b[i] = a[ord[i]];
    swap(a, b);
}

template <typename T>
T floor(T x, T y) {
    assert(y != 0);
    if (y < 0) x = -x, y = -y;
    return (x >= 0 ? x / y : (x - y + 1) / y);
}

template <typename T>
T ceil(T x, T y) {
    assert(y != 0);
    if (y < 0) x = -x, y = -y;
    return (x >= 0 ? (x + y - 1) / y : x / y);
}

template <typename S, typename T>
pair<S, T> operator+(const pair<S, T> &p, const pair<S, T> &q) {
    return make_pair(p.first + q.first, p.second + q.second);
}

template <typename S, typename T>
pair<S, T> operator-(const pair<S, T> &p, const pair<S, T> &q) {
    return make_pair(p.first - q.first, p.second - q.second);
}

template <typename S, typename T>
istream &operator>>(istream &is, pair<S, T> &p) {
    S a;
    T b;
    is >> a >> b;
    p = make_pair(a, b);
    return is;
}

template <typename S, typename T>
ostream &operator<<(ostream &os, const pair<S, T> &p) {
    return os << p.first << ' ' << p.second;
}

struct io_setup {
    io_setup() {
        ios_base::sync_with_stdio(false);
        cin.tie(NULL);
        cout << fixed << setprecision(15);
    }
} io_setup;

constexpr int inf = (1 << 30) - 1;
constexpr ll INF = (1LL << 60) - 1;
// constexpr int MOD = 1000000007;
constexpr int MOD = 998244353;

template <typename T, bool directed = false>
struct Dijkstra {
    struct edge {
        int to;
        T cost;
        int id;
        edge(int to, T cost, int id) : to(to), cost(cost), id(id) {}
    };

    vector<vector<edge>> es;
    vector<T> d;
    vector<int> pre_v, pre_e;
    const T zero_T, INF_T;
    const int n;
    int m;

    Dijkstra(int n, T zero_T = 0, T INF_T = numeric_limits<T>::max() / 2) : es(n), d(n), pre_v(n), pre_e(n), zero_T(zero_T), INF_T(INF_T), n(n), m(0) {}

    void add_edge(int from, int to, T cost) {
        es[from].emplace_back(to, cost, m);
        if (!directed) es[to].emplace_back(from, cost, m);
        m++;
    }

    T shortest_path(int s, int t = 0) {
        fill(begin(d), end(d), INF_T);
        using P = pair<T, int>;
        priority_queue<P, vector<P>, greater<P>> que;
        que.emplace(d[s] = zero_T, s);
        while (!que.empty()) {
            auto [p, i] = que.top();
            que.pop();
            if (p > d[i]) continue;
            for (auto &e : es[i]) {
                if (d[i] + e.cost < d[e.to]) {
                    pre_v[e.to] = i, pre_e[e.to] = e.id;
                    que.emplace(d[e.to] = d[i] + e.cost, e.to);
                }
            }
        }
        return d[t];
    }

    vector<int> restore_path(int s, int t, bool use_id = false) {
        if (d[t] == INF_T) return {};
        vector<int> ret;
        for (int now = t; now != s; now = pre_v[now]) ret.push_back(use_id ? pre_e[now] : now);
        if (!use_id) ret.push_back(s);
        reverse(begin(ret), end(ret));
        return ret;
    }
};

void solve() {
    int N, M;
    ll C;
    cin >> N >> M >> C;

    Dijkstra<ll, true> G(N + 1);
    ll ans = 0;

    rep(i, N) {
        ll a;
        cin >> a;
        G.add_edge(i, i + 1, a);
        G.add_edge(i + 1, i, a);
        ans += a;
    }

    rep(i, M) {
        int l, r;
        cin >> l >> r;
        l--;
        G.add_edge(l, r, C);
        G.add_edge(r, l, C);
    }

    ans -= G.shortest_path(0, N);
    cout << ans << '\n';
}

int main() {
    int T = 1;
    // cin >> T;
    while (T--) solve();
}
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