結果

問題 No.2332 Make a Sequence
ユーザー KudeKude
提出日時 2023-05-28 15:25:09
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 235 ms / 2,000 ms
コード長 4,126 bytes
コンパイル時間 4,148 ms
コンパイル使用メモリ 228,528 KB
実行使用メモリ 27,900 KB
最終ジャッジ日時 2023-08-27 12:07:40
合計ジャッジ時間 16,697 ms
ジャッジサーバーID
(参考情報)
judge11 / judge14
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 1 ms
4,376 KB
testcase_01 AC 2 ms
4,376 KB
testcase_02 AC 2 ms
4,380 KB
testcase_03 AC 2 ms
4,380 KB
testcase_04 AC 1 ms
4,376 KB
testcase_05 AC 2 ms
4,380 KB
testcase_06 AC 2 ms
4,376 KB
testcase_07 AC 150 ms
23,668 KB
testcase_08 AC 26 ms
5,916 KB
testcase_09 AC 112 ms
18,264 KB
testcase_10 AC 140 ms
22,928 KB
testcase_11 AC 91 ms
16,068 KB
testcase_12 AC 179 ms
27,620 KB
testcase_13 AC 179 ms
27,784 KB
testcase_14 AC 179 ms
27,604 KB
testcase_15 AC 179 ms
27,788 KB
testcase_16 AC 180 ms
27,604 KB
testcase_17 AC 178 ms
27,660 KB
testcase_18 AC 178 ms
27,612 KB
testcase_19 AC 180 ms
27,652 KB
testcase_20 AC 178 ms
27,656 KB
testcase_21 AC 179 ms
27,900 KB
testcase_22 AC 179 ms
27,532 KB
testcase_23 AC 180 ms
27,660 KB
testcase_24 AC 178 ms
27,536 KB
testcase_25 AC 179 ms
27,564 KB
testcase_26 AC 179 ms
27,532 KB
testcase_27 AC 178 ms
27,160 KB
testcase_28 AC 177 ms
27,408 KB
testcase_29 AC 178 ms
27,220 KB
testcase_30 AC 178 ms
27,152 KB
testcase_31 AC 178 ms
27,280 KB
testcase_32 AC 180 ms
25,876 KB
testcase_33 AC 177 ms
25,872 KB
testcase_34 AC 176 ms
25,872 KB
testcase_35 AC 176 ms
25,872 KB
testcase_36 AC 176 ms
25,900 KB
testcase_37 AC 179 ms
26,996 KB
testcase_38 AC 177 ms
26,908 KB
testcase_39 AC 178 ms
26,884 KB
testcase_40 AC 178 ms
27,144 KB
testcase_41 AC 179 ms
27,008 KB
testcase_42 AC 180 ms
25,652 KB
testcase_43 AC 180 ms
25,636 KB
testcase_44 AC 180 ms
25,792 KB
testcase_45 AC 182 ms
25,988 KB
testcase_46 AC 180 ms
25,740 KB
testcase_47 AC 233 ms
24,416 KB
testcase_48 AC 233 ms
24,408 KB
testcase_49 AC 233 ms
24,384 KB
testcase_50 AC 235 ms
24,368 KB
testcase_51 AC 234 ms
24,368 KB
testcase_52 AC 178 ms
27,072 KB
testcase_53 AC 178 ms
27,144 KB
testcase_54 AC 177 ms
27,136 KB
testcase_55 AC 179 ms
27,120 KB
testcase_56 AC 182 ms
27,088 KB
testcase_57 AC 81 ms
10,400 KB
testcase_58 AC 73 ms
8,984 KB
testcase_59 AC 75 ms
9,260 KB
testcase_60 AC 77 ms
9,800 KB
testcase_61 AC 72 ms
8,908 KB
testcase_62 AC 204 ms
25,760 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 #

#include<bits/stdc++.h>
namespace {
#pragma GCC diagnostic ignored "-Wunused-function"
#include<atcoder/all>
#pragma GCC diagnostic warning "-Wunused-function"
using namespace std;
using namespace atcoder;
#define rep(i,n) for(int i = 0; i < (int)(n); i++)
#define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--)
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; }
template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; }
using ll = long long;
using P = pair<int,int>;
using VI = vector<int>;
using VVI = vector<VI>;
using VL = vector<ll>;
using VVL = vector<VL>;


// https://ei1333.github.io/library/structure/convex-hull-trick/dynamic-li-chao-tree.hpp


/**
 * @brief Dynamic-Li-Chao-Tree
 * @docs docs/dynamic-li-chao-tree.md
*/
template< typename T, T x_low, T x_high, T id >
struct DynamicLiChaoTree {

  struct Line {
    T a, b;

    Line(T a, T b) : a(a), b(b) {}

    inline T get(T x) const { return a * x + b; }
  };

  struct Node {
    Line x;
    Node *l, *r;

    Node(const Line &x) : x{x}, l{nullptr}, r{nullptr} {}
  };

  Node *root;

  DynamicLiChaoTree() : root{nullptr} {}

  Node *add_line(Node *t, Line &x, const T &l, const T &r, const T &x_l, const T &x_r) {
    if(!t) return new Node(x);

    T t_l = t->x.get(l), t_r = t->x.get(r);

    if(t_l <= x_l && t_r <= x_r) {
      return t;
    } else if(t_l >= x_l && t_r >= x_r) {
      t->x = x;
      return t;
    } else {
      T m = (l + r) / 2;
      if(m == r) --m;
      T t_m = t->x.get(m), x_m = x.get(m);
      if(t_m > x_m) {
        swap(t->x, x);
        if(x_l >= t_l) t->l = add_line(t->l, x, l, m, t_l, t_m);
        else t->r = add_line(t->r, x, m + 1, r, t_m + x.a, t_r);
      } else {
        if(t_l >= x_l) t->l = add_line(t->l, x, l, m, x_l, x_m);
        else t->r = add_line(t->r, x, m + 1, r, x_m + x.a, x_r);
      }
      return t;
    }
  }

  void add_line(const T &a, const T &b) {
    Line x(a, b);
    root = add_line(root, x, x_low, x_high, x.get(x_low), x.get(x_high));
  }

  Node *add_segment(Node *t, Line &x, const T &a, const T &b, const T &l, const T &r, const T &x_l, const T &x_r) {
    if(r < a || b < l) return t;
    if(a <= l && r <= b) {
      Line y{x};
      return add_line(t, y, l, r, x_l, x_r);
    }
    if(t) {
      T t_l = t->x.get(l), t_r = t->x.get(r);
      if(t_l <= x_l && t_r <= x_r) return t;
    } else {
      t = new Node(Line(0, id));
    }
    T m = (l + r) / 2;
    if(m == r) --m;
    T x_m = x.get(m);
    t->l = add_segment(t->l, x, a, b, l, m, x_l, x_m);
    t->r = add_segment(t->r, x, a, b, m + 1, r, x_m + x.a, x_r);
    return t;
  }

  void add_segment(const T &l, const T &r, const T &a, const T &b) {
    Line x(a, b);
    root = add_segment(root, x, l, r - 1, x_low, x_high, x.get(x_low), x.get(x_high));
  }

  T query(const Node *t, const T &l, const T &r, const T &x) const {
    if(!t) return id;
    if(l == r) return t->x.get(x);
    T m = (l + r) / 2;
    if(m == r) --m;
    if(x <= m) return min(t->x.get(x), query(t->l, l, m, x));
    else return min(t->x.get(x), query(t->r, m + 1, r, x));
  }

  T query(const T &x) const {
    return query(root, x_low, x_high, x);
  }
};

} int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n, m;
  cin >> n >> m;
  VI a(n), b(m), c(m);
  rep(i, n) cin >> a[i];
  rep(i, m) cin >> b[i];
  rep(i, m) cin >> c[i];
  VI ab(n + m + 1);
  rep(i, n) ab[i] = a[i];
  ab[n] = -1;
  rep(i, m) ab[n + 1 + i] = b[i];
  auto len = z_algorithm(ab);
  len.erase(len.begin(), len.begin() + n + 1);
  // rep(i, m) cout << len[i] << " \n"[i + 1 == m];
  constexpr long long INF = 1002003004005006007;
  DynamicLiChaoTree<ll, 0, 200010, INF> dp;
  dp.add_segment(0, 1, 0, 0);
  for(int i = 0; i <= m; i++) {
    ll v = dp.query(i);
    if (v == INF) {
      cout << -1 << '\n';
      break;
    }
    if (i == m) {
      cout << v << '\n';
      break;
    }
    // ci(x-i) + v
    dp.add_segment(i, i + len[i] + 1, c[i], v - (ll)i * c[i]);
  }
  exit(0);
}
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