#366859 (C++17) No.860 買い物

提出ソース

結果

問題	No.860 買い物
ユーザー	ei1333333
提出日時	2019-08-09 21:45:29
言語	C++17 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	144 ms / 1,000 ms
コード長	4,998 bytes
コンパイル時間	2,128 ms
コンパイル使用メモリ	217,720 KB
実行使用メモリ	15,928 KB
最終ジャッジ日時	2024-07-19 11:34:45
合計ジャッジ時間	4,325 ms
ジャッジサーバーID （参考情報）	judge3 / judge1

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 5,248 KB
testcase_01	AC	1 ms 5,376 KB
testcase_02	AC	1 ms 5,376 KB
testcase_03	AC	2 ms 5,376 KB
testcase_04	AC	2 ms 5,376 KB
testcase_05	AC	2 ms 5,376 KB
testcase_06	AC	5 ms 5,376 KB
testcase_07	AC	143 ms 15,800 KB
testcase_08	AC	144 ms 15,800 KB
testcase_09	AC	141 ms 15,800 KB
testcase_10	AC	139 ms 15,796 KB
testcase_11	AC	100 ms 15,800 KB
testcase_12	AC	110 ms 15,804 KB
testcase_13	AC	106 ms 15,800 KB
testcase_14	AC	120 ms 15,800 KB
testcase_15	AC	128 ms 15,796 KB
testcase_16	AC	138 ms 15,928 KB
testcase_17	AC	115 ms 15,800 KB

権限があれば一括ダウンロードができます

コンパイルメッセージ

In file included from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/stl_algobase.h:64,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/specfun.h:45,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/cmath:1935,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/x86_64-pc-linux-gnu/bits/stdc++.h:41,
                 from main.cpp:1:
In member function 'std::pair<_T1, _T2>& std::pair<_T1, _T2>::operator=(std::__conditional_t<std::__and_<std::is_move_assignable<_Tp>, std::is_move_assignable<_T2> >::value, std::pair<_T1, _T2>&&, std::__nonesuch&&>) [with _T1 = int; _T2 = long long int]',
    inlined from 'monotone_minima<long long int, std::less<long long int> >(int, int, const std::function<long long int(int, int)>&, const std::less<long long int>&)::<lambda(int, int, int, int)>' at main.cpp:104:14,
    inlined from 'constexpr _Res std::__invoke_impl(__invoke_other, _Fn&&, _Args&& ...) [with _Res = void; _Fn = monotone_minima<long long int, std::less<long long int> >(int, int, const std::function<long long int(int, int)>&, const std::less<long long int>&)::<lambda(int, int, int, int)>&; _Args = {int, int, int, int}]' at /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/invoke.h:61:36,
    inlined from 'constexpr std::enable_if_t<is_invocable_r_v<_Res, _Callable, _Args ...>, _Res> std::__invoke_r(_Callable&&, _Args&& ...) [with _Res = void; _Callable = monotone_minima<long long int, std::less<long long int> >(int, int, const std::function<long long int(int, int)>&, const std::less<long long int>&)::<lambda(int, int, int, int)>&; _Args = {int, int, int, int}]' at /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/invoke.h:111:28,
    inlined from 'static _Res std::_Function_handler<_Res(_ArgTypes ...), _Functor>::_M_invoke(const std::_Any_data&, _ArgTypes&& ...) [with _Res = void; _Functor = monotone_minim

ソースコード

raw source code

#include <bits/stdc++.h>

using namespace std;

using int64 = long long;
const int mod = 1e9 + 7;

const int64 infll = (1LL << 62) - 1;
const int inf = (1 << 30) - 1;

struct IoSetup {
  IoSetup() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    cout << fixed << setprecision(10);
    cerr << fixed << setprecision(10);
  }
} iosetup;


template< typename T1, typename T2 >
ostream &operator<<(ostream &os, const pair< T1, T2 > &p) {
  os << p.first << " " << p.second;
  return os;
}

template< typename T1, typename T2 >
istream &operator>>(istream &is, pair< T1, T2 > &p) {
  is >> p.first >> p.second;
  return is;
}

template< typename T >
ostream &operator<<(ostream &os, const vector< T > &v) {
  for(int i = 0; i < (int) v.size(); i++) {
    os << v[i] << (i + 1 != v.size() ? " " : "");
  }
  return os;
}

template< typename T >
istream &operator>>(istream &is, vector< T > &v) {
  for(T &in : v) is >> in;
  return is;
}

template< typename T1, typename T2 >
inline bool chmax(T1 &a, T2 b) { return a < b && (a = b, true); }

template< typename T1, typename T2 >
inline bool chmin(T1 &a, T2 b) { return a > b && (a = b, true); }

template< typename T = int64 >
vector< T > make_v(size_t a) {
  return vector< T >(a);
}

template< typename T, typename... Ts >
auto make_v(size_t a, Ts... ts) {
  return vector< decltype(make_v< T >(ts...)) >(a, make_v< T >(ts...));
}

template< typename T, typename V >
typename enable_if< is_class< T >::value == 0 >::type fill_v(T &t, const V &v) {
  t = v;
}

template< typename T, typename V >
typename enable_if< is_class< T >::value != 0 >::type fill_v(T &t, const V &v) {
  for(auto &e : t) fill_v(e, v);
}

template< typename F >
struct FixPoint : F {
  FixPoint(F &&f) : F(forward< F >(f)) {}

  template< typename... Args >
  decltype(auto) operator()(Args &&... args) const {
    return F::operator()(*this, forward< Args >(args)...);
  }
};

template< typename F >
inline decltype(auto) MFP(F &&f) {
  return FixPoint< F >{forward< F >(f)};
}


template< typename T, typename Compare = less< T > >
vector< pair< int, T > > monotone_minima(int H, int W, const function< T(int, int) > &f, const Compare &comp = Compare()) {
  vector< pair< int, T > > dp(H);
  function< void(int, int, int, int) > dfs = [&](int top, int bottom, int left, int right) {
    if(top > bottom) return;
    int line = (top + bottom) / 2;
    T ma;
    int mi = -1;
    for(int i = left; i <= right; i++) {
      T cst = f(line, i);
      if(mi == -1 || comp(cst, ma)) {
        ma = cst;
        mi = i;
      }
    }
    dp[line] = make_pair(mi, ma);
    dfs(top, line - 1, left, mi);
    dfs(line + 1, bottom, mi, right);
  };
  dfs(0, H - 1, 0, W - 1);
  return dp;
}

template< typename T, typename Compare = less< T > >
vector< T > online_offline_dp(int W, const function< T(int, int) > &f, const Compare &comp = Compare()) {
  vector< T > dp(W + 1);
  vector< int > isset(W + 1);
  int y_base = -1, x_base = -1;
  function< T(int, int) > get_cost = [&](int y, int x) { // return dp[0, x+x_base)+f[x+x_base, y+y_base)
    return dp[x + x_base] + f(x + x_base, y + y_base);
  };
  function< void(int, int, int) > induce = [&](int l, int m, int r) { // dp[l, m) -> dp[m, r)
    x_base = l, y_base = m;
    auto ret = monotone_minima(r - m, m - l, get_cost, comp);
    for(int i = 0; i < ret.size(); i++) {
      if(!isset[m + i] || comp(ret[i].second, dp[m + i])) {
        isset[m + i] = true;
        dp[m + i] = ret[i].second;
      }
    }
  };
  function< void(int, int) > dfs = [&](int l, int r) {
    if(l + 1 == r) {
      x_base = l, y_base = l;
      T cst = l ? get_cost(0, -1) : 0;
      if(!isset[l] || comp(cst, dp[l])) {
        isset[l] = true;
        dp[l] = cst;
      }
    } else {
      int mid = (l + r) / 2;
      dfs(l, mid);
      induce(l, mid, r);
      dfs(mid, r);
    }
  };
  dfs(0, W + 1);
  return dp;
};

template< typename T >
struct SparseTable {
  vector< vector< T > > st;

  SparseTable() {}

  SparseTable(const vector< T > &v) {
    int b = 0;
    while((1 << b) <= v.size()) ++b;
    st.assign(b, vector< T >(1 << b));
    for(int i = 0; i < v.size(); i++) {
      st[0][i] = v[i];
    }
    for(int i = 1; i < b; i++) {
      for(int j = 0; j + (1 << i) <= (1 << b); j++) {
        st[i][j] = min(st[i - 1][j], st[i - 1][j + (1 << (i - 1))]);
      }
    }
  }

  inline T rmq(int l, int r) // [l, r)
  {
    int b = 32 - __builtin_clz(r - l) - 1;
    return (min(st[b][l], st[b][r - (1 << b)]));
  }
};

int main() {
  int N;
  cin >> N;
  vector< int > C(N), D(N);
  for(int i = 0; i < N; i++) {
    cin >> C[i] >> D[i];
  }

  SparseTable< int > uku(C);

  vector< int64 > sum(N + 1);
  for(int i = 1; i <= N; i++) {
    sum[i] = C[i - 1] + D[i - 1];
    sum[i] += sum[i - 1];
  }

  function< int64(int, int) > cost = [&](int i, int j) {
    int64 add = 0;
    add += sum[j] - sum[i];
    add += uku.rmq(i, j);
    add -= D[i];
    return add;
  };
  cout << online_offline_dp(N, cost).back() << endl;
}

yukicoder

結果

テストケース

コンパイルメッセージ

ソースコード