oj.uz

Submission #691238

# Submission time Handle Problem Language Result Execution time Memory
691238 2023-01-31T03:19:18 Z bdl Stranded Far From Home (BOI22_island) C++17
100 / 100
 145 ms 25452 KB 
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")

#include <algorithm>
#include <array>
#include <iostream>
#include <vector>
using namespace std;

const int N = 2e5;

int e[N];

int find(int i) {
  return e[i] < 0 ? i : e[i] = find(e[i]);
}

void link(int i, int j) {
  i = find(i), j = find(j);
  if (e[i] > e[j])
    swap(i, j);
  e[i] += e[j], e[j] = i;
}

int main() {
  ios::sync_with_stdio(0), cin.tie(0);
  int n, m;
  cin >> n >> m;
  static int s[N];
  for (int i = 0; i < n; i++)
    cin >> s[i];
  vector<array<int, 3>> ed(m);
  for (auto &[v, i, j] : ed) {
    cin >> i >> j, i--, j--;
    v = max(s[i], s[j]);
  }
  sort(ed.begin(), ed.end());
  static vector<int> win[N];
  static long long sm[N];
  for (int i = 0; i < n; i++)
    e[i] = -1, sm[i] = s[i], win[i].push_back(i);
  for (auto [w, i, j] : ed) {
    int u = find(i), v = find(j);
    if (u == v)
      continue;
    link(i, j);
    int t = find(i);
    if (sm[u] < s[j])
      swap(win[t], win[v]);
    else if (sm[v] < s[i])
      swap(win[t], win[u]);
    else {
      if (win[v].size() > win[u].size())
        swap(win[u], win[v]);
      for (int i : win[v])
        win[u].push_back(i);
      swap(win[t], win[u]);
    }
    sm[t] = sm[u] + sm[v];
  }
  static bool w[N];
  for (int i : win[find(0)])
    w[i] = 1;
  for (int i = 0; i < n; i++)
    cout << w[i];
  cout << '\n';
  return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 5076 KB Output is correct
5 Correct 4 ms 5204 KB Output is correct
6 Correct 3 ms 5076 KB Output is correct
7 Correct 4 ms 5076 KB Output is correct
8 Correct 3 ms 5076 KB Output is correct
9 Correct 3 ms 5076 KB Output is correct
10 Correct 3 ms 5204 KB Output is correct
11 Correct 3 ms 5204 KB Output is correct
12 Correct 4 ms 5204 KB Output is correct
13 Correct 4 ms 5076 KB Output is correct
14 Correct 3 ms 5080 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4936 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 100 ms 22464 KB Output is correct
4 Correct 93 ms 20932 KB Output is correct
5 Correct 121 ms 23876 KB Output is correct
6 Correct 121 ms 24252 KB Output is correct
7 Correct 114 ms 24352 KB Output is correct
8 Correct 119 ms 22412 KB Output is correct
9 Correct 107 ms 25436 KB Output is correct
10 Correct 95 ms 20472 KB Output is correct
11 Correct 93 ms 21460 KB Output is correct
12 Correct 107 ms 21096 KB Output is correct
13 Correct 98 ms 20832 KB Output is correct
14 Correct 95 ms 20932 KB Output is correct
15 Correct 101 ms 22464 KB Output is correct
16 Correct 79 ms 21580 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 134 ms 25144 KB Output is correct
3 Correct 129 ms 25152 KB Output is correct
4 Correct 102 ms 22628 KB Output is correct
5 Correct 90 ms 20844 KB Output is correct
6 Correct 131 ms 25276 KB Output is correct
7 Correct 100 ms 22428 KB Output is correct
8 Correct 100 ms 22492 KB Output is correct
9 Correct 97 ms 21576 KB Output is correct
10 Correct 104 ms 21352 KB Output is correct
11 Correct 110 ms 20980 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4936 KB Output is correct
2 Correct 136 ms 23000 KB Output is correct
3 Correct 139 ms 23416 KB Output is correct
4 Correct 145 ms 24352 KB Output is correct
5 Correct 139 ms 25304 KB Output is correct
6 Correct 127 ms 23236 KB Output is correct
7 Correct 97 ms 22456 KB Output is correct
8 Correct 93 ms 21200 KB Output is correct
9 Correct 83 ms 15652 KB Output is correct
10 Correct 128 ms 24428 KB Output is correct
11 Correct 102 ms 20972 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 5076 KB Output is correct
5 Correct 4 ms 5204 KB Output is correct
6 Correct 3 ms 5076 KB Output is correct
7 Correct 4 ms 5076 KB Output is correct
8 Correct 3 ms 5076 KB Output is correct
9 Correct 3 ms 5076 KB Output is correct
10 Correct 3 ms 5204 KB Output is correct
11 Correct 3 ms 5204 KB Output is correct
12 Correct 4 ms 5204 KB Output is correct
13 Correct 4 ms 5076 KB Output is correct
14 Correct 3 ms 5080 KB Output is correct
15 Correct 3 ms 4936 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 100 ms 22464 KB Output is correct
18 Correct 93 ms 20932 KB Output is correct
19 Correct 121 ms 23876 KB Output is correct
20 Correct 121 ms 24252 KB Output is correct
21 Correct 114 ms 24352 KB Output is correct
22 Correct 119 ms 22412 KB Output is correct
23 Correct 107 ms 25436 KB Output is correct
24 Correct 95 ms 20472 KB Output is correct
25 Correct 93 ms 21460 KB Output is correct
26 Correct 107 ms 21096 KB Output is correct
27 Correct 98 ms 20832 KB Output is correct
28 Correct 95 ms 20932 KB Output is correct
29 Correct 101 ms 22464 KB Output is correct
30 Correct 79 ms 21580 KB Output is correct
31 Correct 2 ms 4948 KB Output is correct
32 Correct 134 ms 25144 KB Output is correct
33 Correct 129 ms 25152 KB Output is correct
34 Correct 102 ms 22628 KB Output is correct
35 Correct 90 ms 20844 KB Output is correct
36 Correct 131 ms 25276 KB Output is correct
37 Correct 100 ms 22428 KB Output is correct
38 Correct 100 ms 22492 KB Output is correct
39 Correct 97 ms 21576 KB Output is correct
40 Correct 104 ms 21352 KB Output is correct
41 Correct 110 ms 20980 KB Output is correct
42 Correct 3 ms 4936 KB Output is correct
43 Correct 136 ms 23000 KB Output is correct
44 Correct 139 ms 23416 KB Output is correct
45 Correct 145 ms 24352 KB Output is correct
46 Correct 139 ms 25304 KB Output is correct
47 Correct 127 ms 23236 KB Output is correct
48 Correct 97 ms 22456 KB Output is correct
49 Correct 93 ms 21200 KB Output is correct
50 Correct 83 ms 15652 KB Output is correct
51 Correct 128 ms 24428 KB Output is correct
52 Correct 102 ms 20972 KB Output is correct
53 Correct 2 ms 4948 KB Output is correct
54 Correct 3 ms 4932 KB Output is correct
55 Correct 3 ms 4932 KB Output is correct
56 Correct 5 ms 5204 KB Output is correct
57 Correct 3 ms 5204 KB Output is correct
58 Correct 3 ms 5076 KB Output is correct
59 Correct 3 ms 5072 KB Output is correct
60 Correct 4 ms 5072 KB Output is correct
61 Correct 4 ms 5076 KB Output is correct
62 Correct 3 ms 5204 KB Output is correct
63 Correct 4 ms 5200 KB Output is correct
64 Correct 3 ms 5204 KB Output is correct
65 Correct 3 ms 5076 KB Output is correct
66 Correct 4 ms 5076 KB Output is correct
67 Correct 102 ms 22432 KB Output is correct
68 Correct 94 ms 20972 KB Output is correct
69 Correct 111 ms 23716 KB Output is correct
70 Correct 115 ms 24232 KB Output is correct
71 Correct 113 ms 24252 KB Output is correct
72 Correct 110 ms 22428 KB Output is correct
73 Correct 109 ms 25452 KB Output is correct
74 Correct 92 ms 20472 KB Output is correct
75 Correct 93 ms 21396 KB Output is correct
76 Correct 108 ms 21136 KB Output is correct
77 Correct 92 ms 20720 KB Output is correct
78 Correct 94 ms 20960 KB Output is correct
79 Correct 100 ms 22476 KB Output is correct
80 Correct 76 ms 21568 KB Output is correct
81 Correct 128 ms 25100 KB Output is correct
82 Correct 136 ms 25172 KB Output is correct
83 Correct 99 ms 22448 KB Output is correct
84 Correct 90 ms 20832 KB Output is correct
85 Correct 127 ms 25324 KB Output is correct
86 Correct 96 ms 22536 KB Output is correct
87 Correct 98 ms 22456 KB Output is correct
88 Correct 101 ms 21352 KB Output is correct
89 Correct 117 ms 20972 KB Output is correct
90 Correct 136 ms 23152 KB Output is correct
91 Correct 145 ms 23340 KB Output is correct
92 Correct 137 ms 24392 KB Output is correct
93 Correct 137 ms 25356 KB Output is correct
94 Correct 132 ms 23324 KB Output is correct
95 Correct 102 ms 22344 KB Output is correct
96 Correct 85 ms 21140 KB Output is correct
97 Correct 80 ms 15580 KB Output is correct
98 Correct 137 ms 24476 KB Output is correct
99 Correct 100 ms 20924 KB Output is correct
100 Correct 59 ms 9440 KB Output is correct
101 Correct 127 ms 23824 KB Output is correct
102 Correct 111 ms 20420 KB Output is correct
103 Correct 107 ms 20272 KB Output is correct
104 Correct 123 ms 22452 KB Output is correct