oj.uz

Submission #1041341

# Submission time Handle Problem Language Result Execution time Memory
1041341 2024-08-01T22:04:53 Z aymanrs Island Hopping (JOI24_island) C++17
100 / 100
 14 ms 4952 KB 
    #include "island.h"
    #include <vector>
    #include <set>
    using namespace std;
    int f(int i, int r[]){
      if(r[i]==i) return i;
      return r[i]=f(r[i],r);
    }
    void merge(int a, int b, int r[]){
      a = f(a,r);b=f(b,r);
      if(a==b)return;
      r[b]=a;
    }
    void solve(int N, int L) {
      vector<int> g[N+1];
      bool gg[N+1][N+1] = {{false}};
      int r[N+1];
      set<int> s[N+1];for(int i = 1;i <= N;i++) {
        r[i]=i;
        for(int j = 1;j <= N;j++) if(j!=i) s[i].insert(j);
      }
      for(int i = N;i>1;i--){
        int u = query(i, 1);
        s[i].erase(u);
        if(gg[u][i]) continue;
        g[u].push_back(i);
        g[i].push_back(u);
        gg[u][i]=gg[i][u]=true;
        merge(i,u,r);
      }
      bool load[N+1] = {false};
      int cnt[N+1];
      fill(cnt, cnt+N+1, 1);
      for(int i = 1;i < N;i++){
        load[i]=true;
        for(int j : g[i]) load[j] = true;
        for(int j : g[i]){
          if(j < i) continue;
          int u;
          if(cnt[j] < N-1) {
            u = query(j, ++cnt[j]);
            s[j].erase(u);
          } else u = *s[j].begin();
          if(f(j,r)==f(u,r)) continue;
          merge(u,j,r);
          gg[u][j] = gg[j][u] = true;
          g[u].push_back(j);
          g[j].push_back(u);
        }
      }
      for(int i = 1;i <= N;i++){
        for(int j : g[i]) if(j > i) answer(i,j);
      }
    }

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 9 ms 4696 KB Output is correct
6 Correct 9 ms 4696 KB Output is correct
7 Correct 11 ms 4696 KB Output is correct
8 Correct 10 ms 4512 KB Output is correct
9 Correct 9 ms 4576 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 4696 KB Output is correct
2 Correct 10 ms 4948 KB Output is correct
3 Correct 8 ms 4752 KB Output is correct
4 Correct 10 ms 4696 KB Output is correct
5 Correct 9 ms 4696 KB Output is correct
6 Correct 10 ms 4516 KB Output is correct

Subtask #4
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 9 ms 4696 KB Output is correct
3 Correct 10 ms 4696 KB Output is correct
4 Correct 9 ms 4748 KB Output is correct
5 Correct 10 ms 4748 KB Output is correct
6 Correct 11 ms 4552 KB Output is correct
7 Correct 10 ms 4716 KB Output is correct
8 Correct 10 ms 4512 KB Output is correct
9 Correct 10 ms 4696 KB Output is correct

Subtask #5
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 4696 KB Output is correct
2 Correct 11 ms 4696 KB Output is correct
3 Correct 9 ms 4952 KB Output is correct
4 Correct 12 ms 4696 KB Output is correct
5 Correct 9 ms 4696 KB Output is correct
6 Correct 10 ms 4532 KB Output is correct
7 Correct 9 ms 4696 KB Output is correct
8 Correct 12 ms 4604 KB Output is correct
9 Correct 10 ms 4864 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 9 ms 4696 KB Output is correct
6 Correct 9 ms 4696 KB Output is correct
7 Correct 11 ms 4696 KB Output is correct
8 Correct 10 ms 4512 KB Output is correct
9 Correct 9 ms 4576 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 9 ms 4696 KB Output is correct
12 Correct 10 ms 4696 KB Output is correct
13 Correct 9 ms 4748 KB Output is correct
14 Correct 10 ms 4748 KB Output is correct
15 Correct 11 ms 4552 KB Output is correct
16 Correct 10 ms 4716 KB Output is correct
17 Correct 10 ms 4512 KB Output is correct
18 Correct 10 ms 4696 KB Output is correct
19 Correct 11 ms 4696 KB Output is correct
20 Correct 10 ms 4512 KB Output is correct
21 Correct 11 ms 4548 KB Output is correct
22 Correct 10 ms 4696 KB Output is correct
23 Correct 10 ms 4508 KB Output is correct
24 Correct 11 ms 4696 KB Output is correct
25 Correct 10 ms 4600 KB Output is correct
26 Correct 10 ms 4756 KB Output is correct
27 Correct 10 ms 4696 KB Output is correct
28 Correct 11 ms 4952 KB Output is correct
29 Correct 9 ms 4512 KB Output is correct
30 Correct 9 ms 4512 KB Output is correct
31 Correct 8 ms 4696 KB Output is correct
32 Correct 10 ms 4716 KB Output is correct
33 Correct 9 ms 4752 KB Output is correct
34 Correct 9 ms 4612 KB Output is correct
35 Correct 13 ms 4604 KB Output is correct
36 Correct 12 ms 4660 KB Output is correct
37 Correct 9 ms 4656 KB Output is correct
38 Correct 10 ms 4696 KB Output is correct
39 Correct 9 ms 4580 KB Output is correct
40 Correct 10 ms 4824 KB Output is correct
41 Correct 11 ms 4748 KB Output is correct
42 Correct 11 ms 4512 KB Output is correct
43 Correct 10 ms 4696 KB Output is correct
44 Correct 9 ms 4516 KB Output is correct

Subtask #7
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 10 ms 4696 KB Output is correct
5 Correct 11 ms 4696 KB Output is correct
6 Correct 9 ms 4952 KB Output is correct
7 Correct 12 ms 4696 KB Output is correct
8 Correct 9 ms 4696 KB Output is correct
9 Correct 10 ms 4532 KB Output is correct
10 Correct 9 ms 4696 KB Output is correct
11 Correct 12 ms 4604 KB Output is correct
12 Correct 10 ms 4864 KB Output is correct
13 Correct 10 ms 4748 KB Output is correct
14 Correct 9 ms 4732 KB Output is correct
15 Correct 10 ms 4508 KB Output is correct
16 Correct 13 ms 4652 KB Output is correct
17 Correct 10 ms 4712 KB Output is correct
18 Correct 9 ms 4696 KB Output is correct
19 Correct 10 ms 4728 KB Output is correct
20 Correct 9 ms 4752 KB Output is correct
21 Correct 10 ms 4512 KB Output is correct
22 Correct 12 ms 4696 KB Output is correct
23 Correct 10 ms 4628 KB Output is correct
24 Correct 10 ms 4556 KB Output is correct
25 Correct 10 ms 4756 KB Output is correct
26 Correct 8 ms 4696 KB Output is correct
27 Correct 12 ms 4792 KB Output is correct
28 Correct 10 ms 4696 KB Output is correct
29 Correct 11 ms 4568 KB Output is correct
30 Correct 10 ms 4696 KB Output is correct
31 Correct 9 ms 4696 KB Output is correct
32 Correct 10 ms 4748 KB Output is correct
33 Correct 12 ms 4512 KB Output is correct
34 Correct 10 ms 4720 KB Output is correct
35 Correct 12 ms 4748 KB Output is correct
36 Correct 9 ms 4696 KB Output is correct
37 Correct 10 ms 4752 KB Output is correct
38 Correct 10 ms 4696 KB Output is correct

Subtask #8
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 4696 KB Output is correct
2 Correct 10 ms 4948 KB Output is correct
3 Correct 8 ms 4752 KB Output is correct
4 Correct 10 ms 4696 KB Output is correct
5 Correct 9 ms 4696 KB Output is correct
6 Correct 10 ms 4516 KB Output is correct
7 Correct 10 ms 4544 KB Output is correct
8 Correct 11 ms 4728 KB Output is correct
9 Correct 12 ms 4696 KB Output is correct
10 Correct 9 ms 4696 KB Output is correct
11 Correct 9 ms 4724 KB Output is correct
12 Correct 9 ms 4696 KB Output is correct
13 Correct 12 ms 4684 KB Output is correct
14 Correct 11 ms 4696 KB Output is correct
15 Correct 10 ms 4484 KB Output is correct
16 Correct 9 ms 4696 KB Output is correct
17 Correct 9 ms 4592 KB Output is correct
18 Correct 8 ms 4696 KB Output is correct
19 Correct 10 ms 4664 KB Output is correct
20 Correct 10 ms 4748 KB Output is correct
21 Correct 8 ms 4696 KB Output is correct
22 Correct 10 ms 4696 KB Output is correct
23 Correct 10 ms 4584 KB Output is correct
24 Correct 11 ms 4696 KB Output is correct
25 Correct 12 ms 4848 KB Output is correct
26 Correct 10 ms 4696 KB Output is correct
27 Correct 11 ms 4716 KB Output is correct
28 Correct 11 ms 4748 KB Output is correct
29 Correct 10 ms 4664 KB Output is correct
30 Correct 10 ms 4620 KB Output is correct
31 Correct 9 ms 4660 KB Output is correct
32 Correct 10 ms 4696 KB Output is correct
33 Correct 8 ms 4696 KB Output is correct
34 Correct 8 ms 4696 KB Output is correct
35 Correct 8 ms 4696 KB Output is correct
36 Correct 12 ms 4532 KB Output is correct
37 Correct 14 ms 4696 KB Output is correct
38 Correct 8 ms 4696 KB Output is correct
39 Correct 10 ms 4544 KB Output is correct
40 Correct 9 ms 4512 KB Output is correct