Submission #1014405

#	Time	Username	Problem	Language	Result	Execution time	Memory
1014405		MilosMilutinovic	Plahte (COCI17_plahte)	C++14	32 / 160	2067 ms	21052 KiB

plahte

#include <bits/stdc++.h>

using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n, m;
  cin >> n >> m;
  vector<int> a(n), b(n), c(n), d(n);
  for (int i = 0; i < n; i++) {
    cin >> a[i] >> b[i] >> c[i] >> d[i];
  }
  vector<int> x(m), y(m), k(m);
  for (int i = 0; i < m; i++) {
    cin >> x[i] >> y[i] >> k[i];
  }
  vector<array<int, 3>> ev;
  for (int i = 0; i < n; i++) {
    ev.push_back({a[i], i, 0});
    ev.push_back({c[i] + 1, ~i, 1});
  }
  for (int i = 0; i < m; i++) {
    ev.push_back({x[i], n + i, 2});
  }
  sort(ev.begin(), ev.end());
  set<array<int, 3>> st;
  set<array<int, 3>> rst;
  vector<vector<int>> g(n);
  vector<set<int>> col(n);
  for (auto& p : ev) {
    int i = p[1];
    if (p[2] == 0) {
      auto it = st.lower_bound({b[i], -1, -1});
      if (it != st.begin()) {
        it = prev(it);
        if ((*it)[0] < b[i] && (*it)[1] > d[i]) {
          int idx = (*it)[2];
          assert(a[idx] < a[i] && c[i] < c[idx]);
          //g[(*it)[2]].push_back(i);
        }
      }
      st.insert({b[i], d[i], i});
      rst.insert({d[i], b[i], i});
    }
    if (p[2] == 1) {
      i = ~i;
      st.erase({b[i], d[i], i});
      rst.erase({d[i], b[i], i});
    }
    if (p[2] == 2) {
      i -= n;
      auto it = rst.lower_bound({y[i], -1, -1});
      if (it != rst.end()) {
        if ((*it)[0] >= y[i] && (*it)[1] <= y[i]) {
          //col[(*it)[2]].insert(k[i]);
        }
      }
    }
  }
  vector<int> order(n);
  iota(order.begin(), order.end(), 0);
  sort(order.begin(), order.end(), [&](int i, int j) {
    return (c[i] - a[i] + 1) * 1LL * (d[i] - b[i] + 1) > (c[j] - a[j] + 1) * 1LL * (d[j] - b[j] + 1);
  });
  for (int _i = 0; _i < n; _i++) {
    for (int _j = _i - 1; _j >= 0; _j--) {
      int i = order[_i];
      int j = order[_j];
      if (a[j] < a[i] && c[i] < c[j] && b[j] < b[i] && d[i] < d[j]) {
        g[j].push_back(i);
        break;
      }
    }
  }
  for (int i = 0; i < m; i++) {
    for (int _j = n - 1; _j >= 0; _j--) {
      int j = order[_j];
      if (a[j] <= x[i] && x[i] <= c[j] && b[j] <= y[i] && y[i] <= d[j]) {
        col[j].insert(k[i]);
        break;
      }
    }
  }
  vector<bool> root(n, true);
  for (int i = 0; i < n; i++) {
    for (int j : g[i]) {
      root[j] = false;
    }
  }
  vector<int> res(n);
  vector<int> where(n);
  function<void(int)> Dfs = [&](int v) {
    where[v] = v;
    for (int u : g[v]) {
      Dfs(u);
      if (col[where[v]].size() < col[where[u]].size()) {
        swap(where[v], where[u]);
      }
      for (int c : col[where[u]]) {
        col[where[v]].insert(c);
      }
      col[where[u]].clear();
    }
    res[v] = (int) col[where[v]].size();
  };
  for (int i = 0; i < n; i++) {
    if (root[i]) {
      Dfs(i);
    }
  }
  for (int i = 0; i < n; i++) {
    cout << res[i] << '\n';
  }
  return 0;
}

• Subtask 1: 32 / 32
• Subtask 2: 0 / 32
• Subtask 3: 0 / 32
• Subtask 4: 0 / 32
• Subtask 5: 0 / 32