oj.uz

답안 #894769

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
894769 2023-12-29T00:39:04 Z MilosMilutinovic Golf (JOI17_golf) C++14
30 / 100
 10000 ms 7800 KB 
#include <bits/stdc++.h>

using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int s, t, u, v;
  cin >> s >> t >> u >> v;
  int n;
  cin >> n;
  vector<int> a(n), b(n), c(n), d(n);
  for (int i = 0; i < n; i++) {
    cin >> a[i] >> c[i] >> b[i] >> d[i];
  }
  vector<int> xs;
  xs.push_back(s);
  xs.push_back(t);
  xs.push_back(u);
  xs.push_back(v);
  for (int i = 0; i < n; i++) {
    xs.push_back(a[i]);
    xs.push_back(b[i]);
    xs.push_back(c[i]);
    xs.push_back(d[i]);
  }
  sort(xs.begin(), xs.end());
  xs.erase(unique(xs.begin(), xs.end()), xs.end());
  sort(xs.begin(), xs.end());
  xs.erase(unique(xs.begin(), xs.end()), xs.end());
  s = (int) (lower_bound(xs.begin(), xs.end(), s) - xs.begin());
  t = (int) (lower_bound(xs.begin(), xs.end(), t) - xs.begin());
  u = (int) (lower_bound(xs.begin(), xs.end(), u) - xs.begin());
  v = (int) (lower_bound(xs.begin(), xs.end(), v) - xs.begin());
  for (int i = 0; i < n; i++) {
    a[i] = (int) (lower_bound(xs.begin(), xs.end(), a[i]) - xs.begin());
    b[i] = (int) (lower_bound(xs.begin(), xs.end(), b[i]) - xs.begin());
    c[i] = (int) (lower_bound(xs.begin(), xs.end(), c[i]) - xs.begin());
    d[i] = (int) (lower_bound(xs.begin(), xs.end(), d[i]) - xs.begin());
  }
  int k = (int) xs.size();
  vector<array<int, 3>> ver;
  vector<array<int, 3>> hor;
  for (int i = 0; i < n; i++) {
    {
      // left
      int from = 0;
      for (int j = 0; j < n; j++) {
        if (d[j] < b[i] && a[j] < a[i] && a[i] < c[j]) {
          from = max(from, d[j]);
        }
      }
      int to = k - 1;
      for (int j = 0; j < n; j++) {
        if (b[j] > d[i] && a[j] < a[i] && a[i] < c[j]) {
          to = min(to, b[j]);
        }
      }
      ver.push_back({a[i], from, to});
    }
    {
      // right
      int from = 0;
      for (int j = 0; j < n; j++) {
        if (d[j] < b[i] && a[j] < c[i] && c[i] < c[j]) {
          from = max(from, d[j]);
        }
      }
      int to = k - 1;
      for (int j = 0; j < n; j++) {
        if (b[j] > d[i] && a[j] < c[i] && c[i] < c[j]) {
          to = min(to, b[j]);
        }
      }
      ver.push_back({c[i], from, to});
    }
    {
      // bottom
      int from = 0;
      for (int j = 0; j < n; j++) {
        if (c[j] < a[i] && b[j] < b[i] && b[i] < d[j]) {
          from = max(from, c[j]);
        }
      }
      int to = k - 1;
      for (int j = 0; j < n; j++) {
        if (a[j] > c[i] && b[j] < b[i] && b[i] < d[j]) {
          to = min(to, a[j]);
        }
      }
      hor.push_back({b[i], from, to});
    }
    {
      // top
      int from = 0;
      for (int j = 0; j < n; j++) {
        if (c[j] < a[i] && b[j] < d[i] && d[i] < d[j]) {
          from = max(from, c[j]);
        }
      }
      int to = k - 1;
      for (int j = 0; j < n; j++) {
        if (a[j] > c[i] && b[j] < d[i] && d[i] < d[j]) {
          to = min(to, a[j]);
        }
      }
      hor.push_back({d[i], from, to});
    }
  }
  {
    // start ver
    int from = 0;
    for (int i = 0; i < n; i++) {
      if (d[i] < t && a[i] < s && s < c[i]) {
        from = max(from, d[i]);
      }
    }
    int to = k - 1;
    for (int i = 0; i < n; i++) {
      if (b[i] > t && a[i] < s && s < c[i]) {
        to = min(to, b[i]);
      }
    }
    ver.push_back({s, from, to});
  }
  {
    // start hor
    int from = 0;
    for (int i = 0; i < n; i++) {
      if (c[i] < s && b[i] < t && t < d[i]) {
        from = max(from, c[i]);
      }
    }
    int to = k - 1;
    for (int i = 0; i < n; i++) {
      if (a[i] > s && b[i] < t && t < d[i]) {
        to = min(to, a[i]);
      }
    }
    hor.push_back({t, from, to});
  }
  {
    // end ver
    int from = 0;
    for (int i = 0; i < n; i++) {
      if (d[i] < v && a[i] < u && u < c[i]) {
        from = max(from, d[i]);
      }
    }
    int to = k - 1;
    for (int i = 0; i < n; i++) {
      if (b[i] > v && a[i] < u && u < c[i]) {
        to = min(to, b[i]);
      }
    }
    ver.push_back({u, from, to});
  }
  {
    // end hor
    int from = 0;
    for (int i = 0; i < n; i++) {
      if (c[i] < u && b[i] < v && v < d[i]) {
        from = max(from, c[i]);
      }
    }
    int to = k - 1;
    for (int i = 0; i < n; i++) {
      if (a[i] > u && b[i] < v && v < d[i]) {
        to = min(to, a[i]);
      }
    }
    hor.push_back({v, from, to});
  }
  sort(hor.begin(), hor.end());
  sort(ver.begin(), ver.end());
  hor.erase(unique(hor.begin(), hor.end()), hor.end());
  ver.erase(unique(ver.begin(), ver.end()), ver.end());
  int sh = (int) hor.size();
  int sv = (int) ver.size();
  int m = sh + sv;
  vector<int> dist(m, -1);
  for (int i = 0; i < sh; i++) {
    if (hor[i][0] == t && hor[i][1] <= s && s <= hor[i][2]) {
      dist[i] = 1;
    }
  }
  for (int i = 0; i < sv; i++) {
    if (ver[i][0] == s && ver[i][1] <= t && t <= ver[i][2]) {
      dist[sh + i] = 1;
    }
  }
  vector<int> que;
  for (int i = 0; i < m; i++) {
    if (dist[i] == 1) {
      que.push_back(i);
    }
  }
  for (int q = 0; q < (int) que.size(); q++) {
    int x = que[q];
    if (x < sh) {
      for (int i = 0; i < sv; i++) {
        if (dist[sh + i] == -1 && hor[x][1] <= ver[i][0] && ver[i][0] <= hor[x][2]
                               && ver[i][1] <= hor[x][0] && hor[x][0] <= ver[i][2]) {
          dist[sh + i] = dist[x] + 1;
          que.push_back(sh + i);
        }
      }
    } else {
      x -= sh;
      for (int i = 0; i < sh; i++) {
        if (dist[i] == -1 && ver[x][1] <= hor[i][0] && hor[i][0] <= ver[x][2] 
                          && hor[i][1] <= ver[x][0] && ver[x][0] <= hor[i][2]) {
          dist[i] = dist[x + sh] + 1;
          que.push_back(i);
        }
      }
    }
  }
  int res = (int) 1e9;
  for (int i = 0; i < sh; i++) {
    if (hor[i][0] == v && hor[i][1] <= u && u <= hor[i][2]) {
      res = min(res, dist[i]);
    }
  }
  for (int i = 0; i < sv; i++) {
    if (ver[i][0] == u && ver[i][1] <= v && v <= ver[i][2]) {
      res = min(res, dist[i + sh]);
    }
  }
  cout << res << '\n';
  return 0;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 45 ms 588 KB Output is correct
6 Correct 46 ms 536 KB Output is correct
7 Correct 44 ms 472 KB Output is correct
8 Correct 46 ms 592 KB Output is correct
9 Correct 46 ms 344 KB Output is correct
10 Correct 46 ms 348 KB Output is correct
11 Correct 46 ms 348 KB Output is correct
12 Correct 46 ms 344 KB Output is correct
13 Correct 46 ms 588 KB Output is correct
14 Correct 47 ms 576 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 8 ms 348 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 45 ms 588 KB Output is correct
6 Correct 46 ms 536 KB Output is correct
7 Correct 44 ms 472 KB Output is correct
8 Correct 46 ms 592 KB Output is correct
9 Correct 46 ms 344 KB Output is correct
10 Correct 46 ms 348 KB Output is correct
11 Correct 46 ms 348 KB Output is correct
12 Correct 46 ms 344 KB Output is correct
13 Correct 46 ms 588 KB Output is correct
14 Correct 47 ms 576 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 8 ms 348 KB Output is correct
17 Correct 52 ms 604 KB Output is correct
18 Correct 54 ms 604 KB Output is correct
19 Correct 51 ms 608 KB Output is correct
20 Correct 50 ms 600 KB Output is correct
21 Correct 51 ms 600 KB Output is correct
22 Correct 51 ms 552 KB Output is correct
23 Correct 51 ms 604 KB Output is correct
24 Correct 51 ms 604 KB Output is correct
25 Correct 51 ms 560 KB Output is correct
26 Correct 51 ms 612 KB Output is correct
27 Correct 3 ms 344 KB Output is correct
28 Correct 9 ms 348 KB Output is correct
29 Correct 9 ms 560 KB Output is correct

Subtask #3
0 / 70.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 45 ms 588 KB Output is correct
6 Correct 46 ms 536 KB Output is correct
7 Correct 44 ms 472 KB Output is correct
8 Correct 46 ms 592 KB Output is correct
9 Correct 46 ms 344 KB Output is correct
10 Correct 46 ms 348 KB Output is correct
11 Correct 46 ms 348 KB Output is correct
12 Correct 46 ms 344 KB Output is correct
13 Correct 46 ms 588 KB Output is correct
14 Correct 47 ms 576 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 8 ms 348 KB Output is correct
17 Correct 52 ms 604 KB Output is correct
18 Correct 54 ms 604 KB Output is correct
19 Correct 51 ms 608 KB Output is correct
20 Correct 50 ms 600 KB Output is correct
21 Correct 51 ms 600 KB Output is correct
22 Correct 51 ms 552 KB Output is correct
23 Correct 51 ms 604 KB Output is correct
24 Correct 51 ms 604 KB Output is correct
25 Correct 51 ms 560 KB Output is correct
26 Correct 51 ms 612 KB Output is correct
27 Correct 3 ms 344 KB Output is correct
28 Correct 9 ms 348 KB Output is correct
29 Correct 9 ms 560 KB Output is correct
30 Execution timed out 10045 ms 7800 KB Time limit exceeded
31 Halted 0 ms 0 KB -