oj.uz

Submission #1023178

# Submission time Handle Problem Language Result Execution time Memory
1023178 2024-07-14T12:05:50 Z NeroZein Fountain Parks (IOI21_parks) C++17
30 / 100
 376 ms 47528 KB 
#include "parks.h"
#include <bits/stdc++.h>
using namespace std; 

const int N = 2e5 + 5;

int p[N];
int sz[N];
vector<pair<int, int>> inY[N];

int get(int v) {
  return p[v] = (p[v] == v ? v : get(p[v]));
}

void unite(int u, int v) {
  u = get(u);
  v = get(v);
  if (sz[u] > sz[v]) swap(u, v);
  p[u] = v;
  sz[v] += sz[u];
}

int construct_roads(vector<int> vx, vector<int> vy) {
  int n = (int) vx.size();
  map<pair<int, int>, int> mp;
  for (int i = 0; i < n; ++i) {
    p[i] = i;
    sz[i] = 1;
    mp[{vx[i], vy[i]}] = i;
    inY[vy[i]].emplace_back(vx[i], i); 
  }
  for (int y = 2; y < N; y += 2) {
    sort(inY[y].begin(), inY[y].end());
  }
  set<pair<int, int>> se; 
  vector<int> u, v, a, b;
  for (int y = 2; y < N; y += 2) {
    for (auto [x, i] : inY[y]) {
      if (mp.count({x + 2, y})) {
        int id = mp[{x + 2, y}];
        if (get(id) != get(i)) {
          unite(i, id); 
          u.push_back(i);
          v.push_back(id);
          if (!se.count({x + 1, y - 1})) {
            se.insert({x + 1, y - 1});
            a.push_back(x + 1);
            b.push_back(y - 1);
          } else {
            assert(!se.count({x + 1, y + 1}));
            se.insert({x + 1, y + 1});
            a.push_back(x + 1);
            b.push_back(y + 1); 
          }
        }
      }
      if (mp.count({x, y + 2})) {
        int id = mp[{x, y + 2}];
        if (get(id) != get(i)) {
          unite(i, id);
          u.push_back(i);
          v.push_back(id);
          if (!se.count({x - 1, y + 1})) {
            se.insert({x - 1, y + 1});
            a.push_back(x - 1);
            b.push_back(y + 1); 
          } else {
            assert(!se.count({x + 1, y + 1}));
            se.insert({x + 1, y + 1});
            a.push_back(x + 1);
            b.push_back(y + 1);
          }
        }
      }
    }
  }
  if (sz[get(0)] != n) {
    return 0;
  }
  build(u, v, a, b); 
  return 1;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 3 ms 4956 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 3 ms 4956 KB Output is correct
7 Correct 2 ms 4956 KB Output is correct
8 Correct 3 ms 4952 KB Output is correct
9 Correct 125 ms 27060 KB Output is correct
10 Correct 10 ms 7680 KB Output is correct
11 Correct 58 ms 16832 KB Output is correct
12 Correct 15 ms 8484 KB Output is correct
13 Correct 37 ms 13456 KB Output is correct
14 Correct 4 ms 5208 KB Output is correct
15 Correct 3 ms 5468 KB Output is correct
16 Correct 131 ms 27000 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 3 ms 4956 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 3 ms 4956 KB Output is correct
7 Correct 2 ms 4956 KB Output is correct
8 Correct 3 ms 4952 KB Output is correct
9 Correct 125 ms 27060 KB Output is correct
10 Correct 10 ms 7680 KB Output is correct
11 Correct 58 ms 16832 KB Output is correct
12 Correct 15 ms 8484 KB Output is correct
13 Correct 37 ms 13456 KB Output is correct
14 Correct 4 ms 5208 KB Output is correct
15 Correct 3 ms 5468 KB Output is correct
16 Correct 131 ms 27000 KB Output is correct
17 Correct 3 ms 4952 KB Output is correct
18 Correct 2 ms 4956 KB Output is correct
19 Correct 2 ms 4956 KB Output is correct
20 Correct 2 ms 4952 KB Output is correct
21 Correct 3 ms 5148 KB Output is correct
22 Correct 3 ms 4932 KB Output is correct
23 Correct 306 ms 45736 KB Output is correct
24 Correct 3 ms 4952 KB Output is correct
25 Correct 4 ms 5212 KB Output is correct
26 Correct 4 ms 5468 KB Output is correct
27 Correct 6 ms 5724 KB Output is correct
28 Correct 104 ms 21380 KB Output is correct
29 Correct 178 ms 29552 KB Output is correct
30 Correct 225 ms 37796 KB Output is correct
31 Correct 302 ms 45808 KB Output is correct
32 Correct 3 ms 4952 KB Output is correct
33 Correct 2 ms 4952 KB Output is correct
34 Correct 3 ms 4956 KB Output is correct
35 Correct 2 ms 4956 KB Output is correct
36 Correct 3 ms 4956 KB Output is correct
37 Correct 3 ms 5100 KB Output is correct
38 Correct 2 ms 4956 KB Output is correct
39 Correct 2 ms 4952 KB Output is correct
40 Correct 2 ms 4956 KB Output is correct
41 Correct 2 ms 4956 KB Output is correct
42 Correct 2 ms 4956 KB Output is correct
43 Correct 4 ms 5468 KB Output is correct
44 Correct 5 ms 5468 KB Output is correct
45 Correct 129 ms 26168 KB Output is correct
46 Correct 194 ms 35356 KB Output is correct
47 Correct 223 ms 35492 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 3 ms 4956 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 3 ms 4956 KB Output is correct
7 Correct 2 ms 4956 KB Output is correct
8 Correct 3 ms 4952 KB Output is correct
9 Correct 125 ms 27060 KB Output is correct
10 Correct 10 ms 7680 KB Output is correct
11 Correct 58 ms 16832 KB Output is correct
12 Correct 15 ms 8484 KB Output is correct
13 Correct 37 ms 13456 KB Output is correct
14 Correct 4 ms 5208 KB Output is correct
15 Correct 3 ms 5468 KB Output is correct
16 Correct 131 ms 27000 KB Output is correct
17 Correct 3 ms 4952 KB Output is correct
18 Correct 2 ms 4956 KB Output is correct
19 Correct 2 ms 4956 KB Output is correct
20 Correct 2 ms 4952 KB Output is correct
21 Correct 3 ms 5148 KB Output is correct
22 Correct 3 ms 4932 KB Output is correct
23 Correct 306 ms 45736 KB Output is correct
24 Correct 3 ms 4952 KB Output is correct
25 Correct 4 ms 5212 KB Output is correct
26 Correct 4 ms 5468 KB Output is correct
27 Correct 6 ms 5724 KB Output is correct
28 Correct 104 ms 21380 KB Output is correct
29 Correct 178 ms 29552 KB Output is correct
30 Correct 225 ms 37796 KB Output is correct
31 Correct 302 ms 45808 KB Output is correct
32 Correct 3 ms 4952 KB Output is correct
33 Correct 2 ms 4952 KB Output is correct
34 Correct 3 ms 4956 KB Output is correct
35 Correct 2 ms 4956 KB Output is correct
36 Correct 3 ms 4956 KB Output is correct
37 Correct 3 ms 5100 KB Output is correct
38 Correct 2 ms 4956 KB Output is correct
39 Correct 2 ms 4952 KB Output is correct
40 Correct 2 ms 4956 KB Output is correct
41 Correct 2 ms 4956 KB Output is correct
42 Correct 2 ms 4956 KB Output is correct
43 Correct 4 ms 5468 KB Output is correct
44 Correct 5 ms 5468 KB Output is correct
45 Correct 129 ms 26168 KB Output is correct
46 Correct 194 ms 35356 KB Output is correct
47 Correct 223 ms 35492 KB Output is correct
48 Correct 3 ms 4956 KB Output is correct
49 Correct 2 ms 4956 KB Output is correct
50 Correct 3 ms 4952 KB Output is correct
51 Correct 2 ms 4952 KB Output is correct
52 Correct 3 ms 4956 KB Output is correct
53 Correct 2 ms 4956 KB Output is correct
54 Correct 3 ms 4952 KB Output is correct
55 Correct 320 ms 47272 KB Output is correct
56 Correct 3 ms 4956 KB Output is correct
57 Correct 4 ms 5416 KB Output is correct
58 Correct 8 ms 6492 KB Output is correct
59 Correct 10 ms 6744 KB Output is correct
60 Correct 138 ms 26224 KB Output is correct
61 Correct 187 ms 33444 KB Output is correct
62 Correct 255 ms 40100 KB Output is correct
63 Correct 328 ms 47528 KB Output is correct
64 Correct 3 ms 4952 KB Output is correct
65 Correct 3 ms 5140 KB Output is correct
66 Correct 3 ms 4956 KB Output is correct
67 Correct 298 ms 45728 KB Output is correct
68 Correct 321 ms 45776 KB Output is correct
69 Correct 296 ms 45736 KB Output is correct
70 Correct 5 ms 5724 KB Output is correct
71 Correct 8 ms 6492 KB Output is correct
72 Correct 127 ms 25596 KB Output is correct
73 Correct 207 ms 36088 KB Output is correct
74 Correct 316 ms 46248 KB Output is correct
75 Correct 318 ms 46540 KB Output is correct
76 Correct 300 ms 45732 KB Output is correct
77 Correct 7 ms 5976 KB Output is correct
78 Correct 10 ms 6700 KB Output is correct
79 Correct 136 ms 25528 KB Output is correct
80 Correct 197 ms 36004 KB Output is correct
81 Correct 331 ms 46532 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 3 ms 4956 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 3 ms 4956 KB Output is correct
7 Correct 2 ms 4956 KB Output is correct
8 Correct 3 ms 4952 KB Output is correct
9 Correct 125 ms 27060 KB Output is correct
10 Correct 10 ms 7680 KB Output is correct
11 Correct 58 ms 16832 KB Output is correct
12 Correct 15 ms 8484 KB Output is correct
13 Correct 37 ms 13456 KB Output is correct
14 Correct 4 ms 5208 KB Output is correct
15 Correct 3 ms 5468 KB Output is correct
16 Correct 131 ms 27000 KB Output is correct
17 Correct 2 ms 4952 KB Output is correct
18 Correct 3 ms 4956 KB Output is correct
19 Correct 3 ms 4956 KB Output is correct
20 Correct 301 ms 46724 KB Output is correct
21 Correct 283 ms 46760 KB Output is correct
22 Correct 288 ms 46848 KB Output is correct
23 Correct 220 ms 39148 KB Output is correct
24 Correct 189 ms 25940 KB Output is correct
25 Correct 287 ms 38524 KB Output is correct
26 Correct 316 ms 38312 KB Output is correct
27 Correct 376 ms 44712 KB Output is correct
28 Correct 352 ms 44712 KB Output is correct
29 Correct 315 ms 44412 KB Output is correct
30 Correct 320 ms 44396 KB Output is correct
31 Correct 3 ms 4956 KB Output is correct
32 Runtime error 13 ms 13088 KB Execution killed with signal 6
33 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 3 ms 4956 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 3 ms 4956 KB Output is correct
7 Correct 2 ms 4956 KB Output is correct
8 Correct 3 ms 4952 KB Output is correct
9 Correct 125 ms 27060 KB Output is correct
10 Correct 10 ms 7680 KB Output is correct
11 Correct 58 ms 16832 KB Output is correct
12 Correct 15 ms 8484 KB Output is correct
13 Correct 37 ms 13456 KB Output is correct
14 Correct 4 ms 5208 KB Output is correct
15 Correct 3 ms 5468 KB Output is correct
16 Correct 131 ms 27000 KB Output is correct
17 Correct 300 ms 45368 KB Output is correct
18 Correct 286 ms 45624 KB Output is correct
19 Correct 301 ms 46756 KB Output is correct
20 Correct 351 ms 43360 KB Output is correct
21 Correct 315 ms 40436 KB Output is correct
22 Correct 2 ms 4952 KB Output is correct
23 Runtime error 24 ms 16792 KB Execution killed with signal 6
24 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 3 ms 4956 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 3 ms 4956 KB Output is correct
7 Correct 2 ms 4956 KB Output is correct
8 Correct 3 ms 4952 KB Output is correct
9 Correct 125 ms 27060 KB Output is correct
10 Correct 10 ms 7680 KB Output is correct
11 Correct 58 ms 16832 KB Output is correct
12 Correct 15 ms 8484 KB Output is correct
13 Correct 37 ms 13456 KB Output is correct
14 Correct 4 ms 5208 KB Output is correct
15 Correct 3 ms 5468 KB Output is correct
16 Correct 131 ms 27000 KB Output is correct
17 Correct 3 ms 4952 KB Output is correct
18 Correct 2 ms 4956 KB Output is correct
19 Correct 2 ms 4956 KB Output is correct
20 Correct 2 ms 4952 KB Output is correct
21 Correct 3 ms 5148 KB Output is correct
22 Correct 3 ms 4932 KB Output is correct
23 Correct 306 ms 45736 KB Output is correct
24 Correct 3 ms 4952 KB Output is correct
25 Correct 4 ms 5212 KB Output is correct
26 Correct 4 ms 5468 KB Output is correct
27 Correct 6 ms 5724 KB Output is correct
28 Correct 104 ms 21380 KB Output is correct
29 Correct 178 ms 29552 KB Output is correct
30 Correct 225 ms 37796 KB Output is correct
31 Correct 302 ms 45808 KB Output is correct
32 Correct 3 ms 4952 KB Output is correct
33 Correct 2 ms 4952 KB Output is correct
34 Correct 3 ms 4956 KB Output is correct
35 Correct 2 ms 4956 KB Output is correct
36 Correct 3 ms 4956 KB Output is correct
37 Correct 3 ms 5100 KB Output is correct
38 Correct 2 ms 4956 KB Output is correct
39 Correct 2 ms 4952 KB Output is correct
40 Correct 2 ms 4956 KB Output is correct
41 Correct 2 ms 4956 KB Output is correct
42 Correct 2 ms 4956 KB Output is correct
43 Correct 4 ms 5468 KB Output is correct
44 Correct 5 ms 5468 KB Output is correct
45 Correct 129 ms 26168 KB Output is correct
46 Correct 194 ms 35356 KB Output is correct
47 Correct 223 ms 35492 KB Output is correct
48 Correct 3 ms 4956 KB Output is correct
49 Correct 2 ms 4956 KB Output is correct
50 Correct 3 ms 4952 KB Output is correct
51 Correct 2 ms 4952 KB Output is correct
52 Correct 3 ms 4956 KB Output is correct
53 Correct 2 ms 4956 KB Output is correct
54 Correct 3 ms 4952 KB Output is correct
55 Correct 320 ms 47272 KB Output is correct
56 Correct 3 ms 4956 KB Output is correct
57 Correct 4 ms 5416 KB Output is correct
58 Correct 8 ms 6492 KB Output is correct
59 Correct 10 ms 6744 KB Output is correct
60 Correct 138 ms 26224 KB Output is correct
61 Correct 187 ms 33444 KB Output is correct
62 Correct 255 ms 40100 KB Output is correct
63 Correct 328 ms 47528 KB Output is correct
64 Correct 3 ms 4952 KB Output is correct
65 Correct 3 ms 5140 KB Output is correct
66 Correct 3 ms 4956 KB Output is correct
67 Correct 298 ms 45728 KB Output is correct
68 Correct 321 ms 45776 KB Output is correct
69 Correct 296 ms 45736 KB Output is correct
70 Correct 5 ms 5724 KB Output is correct
71 Correct 8 ms 6492 KB Output is correct
72 Correct 127 ms 25596 KB Output is correct
73 Correct 207 ms 36088 KB Output is correct
74 Correct 316 ms 46248 KB Output is correct
75 Correct 318 ms 46540 KB Output is correct
76 Correct 300 ms 45732 KB Output is correct
77 Correct 7 ms 5976 KB Output is correct
78 Correct 10 ms 6700 KB Output is correct
79 Correct 136 ms 25528 KB Output is correct
80 Correct 197 ms 36004 KB Output is correct
81 Correct 331 ms 46532 KB Output is correct
82 Correct 2 ms 4952 KB Output is correct
83 Correct 3 ms 4956 KB Output is correct
84 Correct 3 ms 4956 KB Output is correct
85 Correct 301 ms 46724 KB Output is correct
86 Correct 283 ms 46760 KB Output is correct
87 Correct 288 ms 46848 KB Output is correct
88 Correct 220 ms 39148 KB Output is correct
89 Correct 189 ms 25940 KB Output is correct
90 Correct 287 ms 38524 KB Output is correct
91 Correct 316 ms 38312 KB Output is correct
92 Correct 376 ms 44712 KB Output is correct
93 Correct 352 ms 44712 KB Output is correct
94 Correct 315 ms 44412 KB Output is correct
95 Correct 320 ms 44396 KB Output is correct
96 Correct 3 ms 4956 KB Output is correct
97 Runtime error 13 ms 13088 KB Execution killed with signal 6
98 Halted 0 ms 0 KB -