oj.uz

Submission #49859

# Submission time Handle Problem Language Result Execution time Memory
49859 2018-06-03T21:05:30 Z zemen New Home (APIO18_new_home) C++17
5 / 100
 5000 ms 76208 KB 
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using oset = __gnu_pbds::tree<int, __gnu_pbds::null_type,
        std::less<int>,
        __gnu_pbds::rb_tree_tag,
        __gnu_pbds::tree_order_statistics_node_update>;
 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
 
const int base = 1 << 16;
const int inf = 1e9;
oset t[base * 2];
vector<pair<int, int>> xc;
int k;
 
int tget(int l, int r, int v = 1, int cl = 0, int cr = base) {
  if (l <= cl && cr <= r) {
    return t[v].size() - t[v].order_of_key(r);
  }
  if (r <= cl || cr <= l) {
    return 0;
  }
  int cc = (cl + cr) / 2;
  return tget(l, r, v * 2, cl, cc) + tget(l, r, v * 2 + 1, cc, cr);
}
 
int get(int x) {
  int L = -1, R = inf / 2;
  map<pair<int, int>, int> bscache;
  bool ok = false;
  while (L + 1 < R) {
    int C = (L + R) / 2;
    int lb = lower_bound(xc.begin(), xc.end(), pair<int, int>{x - C, -1}) - xc.begin();
    int rb = upper_bound(xc.begin(), xc.end(), pair<int, int>{x + C, inf}) - xc.begin();
 
    auto q = pair<int, int>{lb, rb};
    int cnt;
    if (bscache.count(q)) {
      cnt = bscache[q];
    } else {
      bscache[q] = cnt = tget(lb, rb);
    }
 
    assert(cnt <= k);
    if (cnt >= k) {
      R = C;
      ok = true;
    } else {
      L = C;
    }
  }
  if (!ok) {
    return -1;
  } else {
    return R;
  }
}
 
void tput(int v, int val) {
  v += base;
  while (v >= 1) {
    int ss = -t[v].size();
    t[v].insert(val);
    ss += t[v].size();
    assert(ss == 1);
    v /= 2;
  }
}
 
void tdel(int v, int val) {
  v += base;
  while (v >= 1) {
    int ss = t[v].size();
    t[v].erase(val);
    ss -= t[v].size();
    assert(ss == 1);
    v /= 2;
  }
}
 
set<int> pos[base];
void put(int x, int t, int delta) {
  if (delta == -1) {
    auto it = pos[t].upper_bound(x);
    int val = it == pos[t].end() ? inf + t : *it;
    if (it != pos[t].begin()) {
      --it;
      tdel(*it, val);
      tput(*it, x);
    }
    pos[t].insert(x);
    tput(x, val);
  } else if (delta == 1) {
    assert(pos[t].count(x));
    auto it = pos[t].upper_bound(x);
    int val = it == pos[t].end() ? inf + t : *it;
    tdel(x, val);
    pos[t].erase(x);
    if (it != pos[t].begin()) {
      --it;
      tdel(*it, x);
      tput(*it, val);
    }
  } else {
    assert(false);
  }
}
 
signed main() {
#ifdef LOCAL
  assert(freopen("a.in", "r", stdin));
#endif
  struct Event {
    int tp, tm, x, t, id;
    bool operator<(const Event& e) const {
      if (tm != e.tm) {
        return tm < e.tm;
      }
      return tp < e.tp;
    }
  };
 
  int n, q;
  cin >> n >> k >> q;
  vector<Event> ev;
  for (int i = 0; i < n; ++i) {
    int x, t, a, b;
    cin >> x >> t >> a >> b;
    ev.push_back(Event{-1, a, x, t, i});
    ev.push_back(Event{1, b, x, t, i});
    xc.emplace_back(x, i);
  }
  sort(xc.begin(), xc.end());
  for (int i = 0; i < q; ++i) {
    int l, y;
    cin >> l >> y;
    ev.push_back(Event{0, y, l, -1, i});
  }
  sort(ev.begin(), ev.end());
  vector<int> res(q);
  for (auto& e : ev) {
    if (e.tp == 0) {
      res[e.id] = get(e.x);
    } else {
      auto sx = lower_bound(xc.begin(), xc.end(), pair<int, int>{e.x, e.id}) - xc.begin();
      put(sx, e.t, e.tp);
    }
  }
  for (int i = 0; i < q; ++i) {
    cout << res[i] << '\n';
  }
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 13620 KB Output is correct
2 Correct 16 ms 13672 KB Output is correct
3 Correct 17 ms 13748 KB Output is correct
4 Correct 16 ms 13772 KB Output is correct
5 Correct 21 ms 13944 KB Output is correct
6 Correct 24 ms 14072 KB Output is correct
7 Correct 19 ms 14072 KB Output is correct
8 Correct 24 ms 14116 KB Output is correct
9 Correct 25 ms 14244 KB Output is correct
10 Correct 28 ms 14244 KB Output is correct
11 Correct 22 ms 14244 KB Output is correct
12 Correct 33 ms 14244 KB Output is correct
13 Correct 21 ms 14244 KB Output is correct
14 Correct 27 ms 14244 KB Output is correct
15 Correct 24 ms 14244 KB Output is correct
16 Correct 24 ms 14244 KB Output is correct
17 Correct 26 ms 14244 KB Output is correct
18 Correct 25 ms 14244 KB Output is correct
19 Correct 22 ms 14244 KB Output is correct
20 Correct 26 ms 14244 KB Output is correct
21 Correct 23 ms 14244 KB Output is correct
22 Correct 24 ms 14244 KB Output is correct
23 Correct 25 ms 14244 KB Output is correct
24 Correct 27 ms 14244 KB Output is correct
25 Correct 28 ms 14244 KB Output is correct
26 Correct 23 ms 14244 KB Output is correct
27 Correct 22 ms 14244 KB Output is correct
28 Correct 22 ms 14244 KB Output is correct
29 Correct 21 ms 14244 KB Output is correct
30 Correct 21 ms 14244 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 13620 KB Output is correct
2 Correct 16 ms 13672 KB Output is correct
3 Correct 17 ms 13748 KB Output is correct
4 Correct 16 ms 13772 KB Output is correct
5 Correct 21 ms 13944 KB Output is correct
6 Correct 24 ms 14072 KB Output is correct
7 Correct 19 ms 14072 KB Output is correct
8 Correct 24 ms 14116 KB Output is correct
9 Correct 25 ms 14244 KB Output is correct
10 Correct 28 ms 14244 KB Output is correct
11 Correct 22 ms 14244 KB Output is correct
12 Correct 33 ms 14244 KB Output is correct
13 Correct 21 ms 14244 KB Output is correct
14 Correct 27 ms 14244 KB Output is correct
15 Correct 24 ms 14244 KB Output is correct
16 Correct 24 ms 14244 KB Output is correct
17 Correct 26 ms 14244 KB Output is correct
18 Correct 25 ms 14244 KB Output is correct
19 Correct 22 ms 14244 KB Output is correct
20 Correct 26 ms 14244 KB Output is correct
21 Correct 23 ms 14244 KB Output is correct
22 Correct 24 ms 14244 KB Output is correct
23 Correct 25 ms 14244 KB Output is correct
24 Correct 27 ms 14244 KB Output is correct
25 Correct 28 ms 14244 KB Output is correct
26 Correct 23 ms 14244 KB Output is correct
27 Correct 22 ms 14244 KB Output is correct
28 Correct 22 ms 14244 KB Output is correct
29 Correct 21 ms 14244 KB Output is correct
30 Correct 21 ms 14244 KB Output is correct
31 Execution timed out 5010 ms 69020 KB Time limit exceeded
32 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 943 ms 75628 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Runtime error 943 ms 76208 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 13620 KB Output is correct
2 Correct 16 ms 13672 KB Output is correct
3 Correct 17 ms 13748 KB Output is correct
4 Correct 16 ms 13772 KB Output is correct
5 Correct 21 ms 13944 KB Output is correct
6 Correct 24 ms 14072 KB Output is correct
7 Correct 19 ms 14072 KB Output is correct
8 Correct 24 ms 14116 KB Output is correct
9 Correct 25 ms 14244 KB Output is correct
10 Correct 28 ms 14244 KB Output is correct
11 Correct 22 ms 14244 KB Output is correct
12 Correct 33 ms 14244 KB Output is correct
13 Correct 21 ms 14244 KB Output is correct
14 Correct 27 ms 14244 KB Output is correct
15 Correct 24 ms 14244 KB Output is correct
16 Correct 24 ms 14244 KB Output is correct
17 Correct 26 ms 14244 KB Output is correct
18 Correct 25 ms 14244 KB Output is correct
19 Correct 22 ms 14244 KB Output is correct
20 Correct 26 ms 14244 KB Output is correct
21 Correct 23 ms 14244 KB Output is correct
22 Correct 24 ms 14244 KB Output is correct
23 Correct 25 ms 14244 KB Output is correct
24 Correct 27 ms 14244 KB Output is correct
25 Correct 28 ms 14244 KB Output is correct
26 Correct 23 ms 14244 KB Output is correct
27 Correct 22 ms 14244 KB Output is correct
28 Correct 22 ms 14244 KB Output is correct
29 Correct 21 ms 14244 KB Output is correct
30 Correct 21 ms 14244 KB Output is correct
31 Execution timed out 5010 ms 69020 KB Time limit exceeded
32 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 13620 KB Output is correct
2 Correct 16 ms 13672 KB Output is correct
3 Correct 17 ms 13748 KB Output is correct
4 Correct 16 ms 13772 KB Output is correct
5 Correct 21 ms 13944 KB Output is correct
6 Correct 24 ms 14072 KB Output is correct
7 Correct 19 ms 14072 KB Output is correct
8 Correct 24 ms 14116 KB Output is correct
9 Correct 25 ms 14244 KB Output is correct
10 Correct 28 ms 14244 KB Output is correct
11 Correct 22 ms 14244 KB Output is correct
12 Correct 33 ms 14244 KB Output is correct
13 Correct 21 ms 14244 KB Output is correct
14 Correct 27 ms 14244 KB Output is correct
15 Correct 24 ms 14244 KB Output is correct
16 Correct 24 ms 14244 KB Output is correct
17 Correct 26 ms 14244 KB Output is correct
18 Correct 25 ms 14244 KB Output is correct
19 Correct 22 ms 14244 KB Output is correct
20 Correct 26 ms 14244 KB Output is correct
21 Correct 23 ms 14244 KB Output is correct
22 Correct 24 ms 14244 KB Output is correct
23 Correct 25 ms 14244 KB Output is correct
24 Correct 27 ms 14244 KB Output is correct
25 Correct 28 ms 14244 KB Output is correct
26 Correct 23 ms 14244 KB Output is correct
27 Correct 22 ms 14244 KB Output is correct
28 Correct 22 ms 14244 KB Output is correct
29 Correct 21 ms 14244 KB Output is correct
30 Correct 21 ms 14244 KB Output is correct
31 Execution timed out 5010 ms 69020 KB Time limit exceeded
32 Halted 0 ms 0 KB -