Submission #719664

#	Time	Username	Problem	Language	Result	Execution time	Memory
719664		peijar	Measures (CEOI22_measures)	C++17	0 / 100	216 ms	11064 KiB

Main

#include <bits/stdc++.h>
#define int long long
using namespace std;

string to_string(string s) { return s; }
template <typename T> string to_string(T v) {
  bool first = true;
  string res = "[";
  for (const auto &x : v) {
    if (!first)
      res += ", ";
    first = false;
    res += to_string(x);
  }
  res += "]";
  return res;
}

void dbg_out() { cout << endl; }
template <typename Head, typename... Tail> void dbg_out(Head H, Tail... T) {
  cout << ' ' << to_string(H);
  dbg_out(T...);
}

#ifdef DEBUG
#define dbg(...) cout << "(" << #__VA_ARGS__ << "):", dbg_out(__VA_ARGS__)
#else
#define dbg(...)
#endif

struct Intervalle {
  int deb, fin, maxVal;

  bool operator<(Intervalle other) const { return deb < other.deb; }
};

Intervalle fusion(Intervalle a, Intervalle b) {

  return Intervalle{a.deb, b.fin + (a.fin - b.deb),
                    max(a.maxVal, b.maxVal + a.fin - b.deb)};
}

signed main(void) {
  ios_base::sync_with_stdio(false);
  cin.tie(0);

  int nbInit, nbRequetes, D;
  cin >> nbInit >> nbRequetes >> D;

  set<Intervalle> intervalles;

  int sol = 0;

  auto ajouteIntervalle = [&](int x) {
    Intervalle s{x, x + D, 0};
    auto it = intervalles.lower_bound(s);
    if (it != intervalles.begin()) {
      --it;
      if (it->fin >= s.deb) {
        s = fusion(*it, s);
        intervalles.erase(it);
      }
    }
    while (true) {
      it = intervalles.lower_bound(s);
      if (it != intervalles.end() and it->deb <= s.fin) {
        s = fusion(s, *it);
        intervalles.erase(it);
      } else
        break;
    }
    sol = max(sol, s.maxVal);
    intervalles.insert(s);
  };

  for (int i = 0; i < nbInit; ++i) {
    int x;
    cin >> x;
    ajouteIntervalle(x);
  }

  for (int i = 0; i < nbRequetes; ++i) {
    int x;
    cin >> x;
    ajouteIntervalle(x);
    cout << sol / 2. << ' ';
  }
  cout << endl;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 14
• Subtask 3: 0 / 35
• Subtask 4: 0 / 41