oj.uz

Submission #399742

# Submission time Handle Problem Language Result Execution time Memory
399742 2021-05-06T14:24:53 Z my99n New Home (APIO18_new_home) C++17
0 / 100
 1 ms 460 KB 
#include<bits/stdc++.h>
using namespace std;

struct event {
  int et, x, t, y, i;
  bool operator < (const event & o) const {
    if (y == o.y) return et < o.et; // open query close
    return y < o.y;
  }
};
vector<event> e;
set<pair<int,int>> s[500];
int ans[100100];

int main(){
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  int n, k, q; cin >> n >> k >> q;
  assert(k < 500);
  for (int i = 1; i <= n; i++) {
    int x, t, a, b; cin >> x >> t >> a >> b;
    e.push_back({1, x, t, a, i});
    e.push_back({3, x, t, b, i});
  }
  for (int i = 1; i <= q; i++) {
    int l, y; cin >> l >> y;
    e.push_back({2, l, 0, y, i});
  }
  sort(e.begin(), e.end());
  for (auto [et, x, t, y, i] : e) {
    if (et == 1) s[t].insert({x, i});
    if (et == 3) s[t].erase({x, i});
    if (et == 2) {
      for (int type = 1; type <= k; type++) {
        if (s[type].empty()) {
          ans[i] = -1;
          break;
        }

        // int mn = 1e9;
        // for (auto a : s[type]) {
        //   mn = min(mn, abs(x - a.first));
        // }
        auto a = s[type].lower_bound({x, 1e9});
        auto b = next(a);
        auto c = prev(a);
        int mn = min(abs(x - a->first), abs(b->first-x));
        mn = min(mn, abs(c->first-x));

        ans[i] = max(ans[i], mn);
      }
    }
  }
  for (int i = 1; i <= q; i++) cout << ans[i] << endl;
  return 0;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Incorrect 1 ms 332 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Incorrect 1 ms 332 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 460 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 460 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Incorrect 1 ms 332 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Incorrect 1 ms 332 KB Output isn't correct
5 Halted 0 ms 0 KB -