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Submission #434990

# Submission time Handle Problem Language Result Execution time Memory
434990 2021-06-22T17:38:53 Z model_code Fountain Parks (IOI21_parks) C++17
30 / 100
 900 ms 26220 KB 
#include "parks.h"

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

constexpr int kMinX = 2;
constexpr int kMidX = 4;
constexpr int kMaxX = 6;

int construct_roads(std::vector<int> X, std::vector<int> Y) {
  int N = X.size();

  vector<map<int, int>> pos(kMaxX + 1);
  for (int i = 0; i < N; ++i) {
    pos[X[i]][Y[i]] = i;
  }

  vector<int> parent(N);
  iota(parent.begin(), parent.end(), 0);

  function<int(int)> find_root = [&] (int u) {
    return parent[u] = u == parent[u] ? u : find_root(parent[u]);
  };

  for (int i = 0; i < N; ++i) {
    if (pos[X[i]].count(Y[i] + 2)) {
      parent[find_root(i)] = find_root(pos[X[i]][Y[i] + 2]);
    }
    if (X[i] < kMaxX && pos[X[i] + 2].count(Y[i])) {
      parent[find_root(i)] = find_root(pos[X[i] + 2][Y[i]]);
    }
  }

  for (int i = 0; i < N; ++i) {
    if (find_root(i) != find_root(0)) {
      return 0;
    }
  }

  vector<int> U, V, A, B;
  
  for (int x : {kMinX, kMaxX}) {
    for (map<int, int>::iterator it = pos[x].begin();
         it != pos[x].end();
         ++it) {
      int y = it->first;
      if (pos[x].count(y + 2)) {
        U.push_back(pos[x][y]);
        V.push_back(pos[x][y + 2]);
        A.push_back(x == kMinX ? x - 1 : x + 1);
        B.push_back(y + 1);
      }
    }
  }

  for (map<int, int>::iterator it = pos[kMidX].begin();
       it != pos[kMidX].end();
       ++it) {
    int x = kMidX;
    int y = it->first;
    if (pos[x].count(y + 2)) {
      U.push_back(pos[x][y]);
      V.push_back(pos[x][y + 2]);
      B.push_back(y + 1);
      if (y & 2) {
        A.push_back(x + 1);

        if (pos[x - 2].count(y)) {
          U.push_back(pos[x][y]);
          V.push_back(pos[x - 2][y]);
          A.push_back(x - 1);
          B.push_back(y + 1);
        }

        if (pos[x + 2].count(y)) {
          if (pos[x + 2].count(y - 2) == 0 || pos[x].count(y - 2) == 0) {
            U.push_back(pos[x][y]);
            V.push_back(pos[x + 2][y]);
            A.push_back(x + 1);
            B.push_back(y - 1);
          }
        }
      } else {
        A.push_back(x - 1);

        if (pos[x - 2].count(y)) {
          if (pos[x - 2].count(y - 2) == 0 || pos[x].count(y - 2) == 0) {
            U.push_back(pos[x][y]);
            V.push_back(pos[x - 2][y]);
            A.push_back(x - 1);
            B.push_back(y - 1);
          }
        }

        if (pos[x + 2].count(y)) {
          U.push_back(pos[x][y]);
          V.push_back(pos[x + 2][y]);
          A.push_back(x + 1);
          B.push_back(y + 1); 
        }
      }
    } else {
      for (int d : {-1, 1}) {
        if (pos[x + d * 2].count(y)) {
          U.push_back(pos[x][y]);
          V.push_back(pos[x + d * 2][y]);
          A.push_back(x + d);
          B.push_back(y + 1);
        }
      }
    }
  }

  build(U, V, A, B);
  return 1;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 192 ms 11732 KB Output is correct
10 Correct 29 ms 2056 KB Output is correct
11 Correct 91 ms 9020 KB Output is correct
12 Correct 27 ms 2888 KB Output is correct
13 Correct 36 ms 4548 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 3 ms 332 KB Output is correct
16 Correct 202 ms 11776 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 192 ms 11732 KB Output is correct
10 Correct 29 ms 2056 KB Output is correct
11 Correct 91 ms 9020 KB Output is correct
12 Correct 27 ms 2888 KB Output is correct
13 Correct 36 ms 4548 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 3 ms 332 KB Output is correct
16 Correct 202 ms 11776 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 900 ms 25416 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 3 ms 460 KB Output is correct
26 Correct 5 ms 460 KB Output is correct
27 Correct 5 ms 460 KB Output is correct
28 Correct 208 ms 10368 KB Output is correct
29 Correct 307 ms 15376 KB Output is correct
30 Correct 606 ms 20456 KB Output is correct
31 Correct 755 ms 25500 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 1 ms 204 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 1 ms 204 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 2 ms 332 KB Output is correct
44 Correct 3 ms 460 KB Output is correct
45 Correct 217 ms 11684 KB Output is correct
46 Correct 459 ms 16836 KB Output is correct
47 Correct 493 ms 16808 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 192 ms 11732 KB Output is correct
10 Correct 29 ms 2056 KB Output is correct
11 Correct 91 ms 9020 KB Output is correct
12 Correct 27 ms 2888 KB Output is correct
13 Correct 36 ms 4548 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 3 ms 332 KB Output is correct
16 Correct 202 ms 11776 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 900 ms 25416 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 3 ms 460 KB Output is correct
26 Correct 5 ms 460 KB Output is correct
27 Correct 5 ms 460 KB Output is correct
28 Correct 208 ms 10368 KB Output is correct
29 Correct 307 ms 15376 KB Output is correct
30 Correct 606 ms 20456 KB Output is correct
31 Correct 755 ms 25500 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 1 ms 204 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 1 ms 204 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 2 ms 332 KB Output is correct
44 Correct 3 ms 460 KB Output is correct
45 Correct 217 ms 11684 KB Output is correct
46 Correct 459 ms 16836 KB Output is correct
47 Correct 493 ms 16808 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 1 ms 204 KB Output is correct
52 Correct 1 ms 204 KB Output is correct
53 Correct 1 ms 204 KB Output is correct
54 Correct 1 ms 204 KB Output is correct
55 Correct 761 ms 26212 KB Output is correct
56 Correct 1 ms 204 KB Output is correct
57 Correct 4 ms 588 KB Output is correct
58 Correct 11 ms 1228 KB Output is correct
59 Correct 10 ms 952 KB Output is correct
60 Correct 378 ms 13300 KB Output is correct
61 Correct 395 ms 17768 KB Output is correct
62 Correct 582 ms 21692 KB Output is correct
63 Correct 810 ms 26220 KB Output is correct
64 Correct 1 ms 204 KB Output is correct
65 Correct 1 ms 204 KB Output is correct
66 Correct 1 ms 204 KB Output is correct
67 Correct 580 ms 23112 KB Output is correct
68 Correct 583 ms 23184 KB Output is correct
69 Correct 544 ms 22992 KB Output is correct
70 Correct 4 ms 460 KB Output is correct
71 Correct 8 ms 732 KB Output is correct
72 Correct 266 ms 11780 KB Output is correct
73 Correct 482 ms 17384 KB Output is correct
74 Correct 761 ms 23160 KB Output is correct
75 Correct 684 ms 25032 KB Output is correct
76 Correct 603 ms 23136 KB Output is correct
77 Correct 5 ms 588 KB Output is correct
78 Correct 15 ms 844 KB Output is correct
79 Correct 280 ms 12160 KB Output is correct
80 Correct 479 ms 18120 KB Output is correct
81 Correct 726 ms 24052 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 192 ms 11732 KB Output is correct
10 Correct 29 ms 2056 KB Output is correct
11 Correct 91 ms 9020 KB Output is correct
12 Correct 27 ms 2888 KB Output is correct
13 Correct 36 ms 4548 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 3 ms 332 KB Output is correct
16 Correct 202 ms 11776 KB Output is correct
17 Runtime error 1 ms 296 KB Execution killed with signal 11
18 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 192 ms 11732 KB Output is correct
10 Correct 29 ms 2056 KB Output is correct
11 Correct 91 ms 9020 KB Output is correct
12 Correct 27 ms 2888 KB Output is correct
13 Correct 36 ms 4548 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 3 ms 332 KB Output is correct
16 Correct 202 ms 11776 KB Output is correct
17 Runtime error 50 ms 6716 KB Execution killed with signal 11
18 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 192 ms 11732 KB Output is correct
10 Correct 29 ms 2056 KB Output is correct
11 Correct 91 ms 9020 KB Output is correct
12 Correct 27 ms 2888 KB Output is correct
13 Correct 36 ms 4548 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 3 ms 332 KB Output is correct
16 Correct 202 ms 11776 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 900 ms 25416 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 3 ms 460 KB Output is correct
26 Correct 5 ms 460 KB Output is correct
27 Correct 5 ms 460 KB Output is correct
28 Correct 208 ms 10368 KB Output is correct
29 Correct 307 ms 15376 KB Output is correct
30 Correct 606 ms 20456 KB Output is correct
31 Correct 755 ms 25500 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 1 ms 204 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 1 ms 204 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 2 ms 332 KB Output is correct
44 Correct 3 ms 460 KB Output is correct
45 Correct 217 ms 11684 KB Output is correct
46 Correct 459 ms 16836 KB Output is correct
47 Correct 493 ms 16808 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 1 ms 204 KB Output is correct
52 Correct 1 ms 204 KB Output is correct
53 Correct 1 ms 204 KB Output is correct
54 Correct 1 ms 204 KB Output is correct
55 Correct 761 ms 26212 KB Output is correct
56 Correct 1 ms 204 KB Output is correct
57 Correct 4 ms 588 KB Output is correct
58 Correct 11 ms 1228 KB Output is correct
59 Correct 10 ms 952 KB Output is correct
60 Correct 378 ms 13300 KB Output is correct
61 Correct 395 ms 17768 KB Output is correct
62 Correct 582 ms 21692 KB Output is correct
63 Correct 810 ms 26220 KB Output is correct
64 Correct 1 ms 204 KB Output is correct
65 Correct 1 ms 204 KB Output is correct
66 Correct 1 ms 204 KB Output is correct
67 Correct 580 ms 23112 KB Output is correct
68 Correct 583 ms 23184 KB Output is correct
69 Correct 544 ms 22992 KB Output is correct
70 Correct 4 ms 460 KB Output is correct
71 Correct 8 ms 732 KB Output is correct
72 Correct 266 ms 11780 KB Output is correct
73 Correct 482 ms 17384 KB Output is correct
74 Correct 761 ms 23160 KB Output is correct
75 Correct 684 ms 25032 KB Output is correct
76 Correct 603 ms 23136 KB Output is correct
77 Correct 5 ms 588 KB Output is correct
78 Correct 15 ms 844 KB Output is correct
79 Correct 280 ms 12160 KB Output is correct
80 Correct 479 ms 18120 KB Output is correct
81 Correct 726 ms 24052 KB Output is correct
82 Runtime error 1 ms 296 KB Execution killed with signal 11
83 Halted 0 ms 0 KB -