oj.uz

Submission #1041347

# Submission time Handle Problem Language Result Execution time Memory
1041347 2024-08-01T22:14:47 Z aymanrs Island Hopping (JOI24_island) C++17
100 / 100
 7 ms 600 KB 
#include "island.h"
#include <vector>
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];
  for(int i = 1;i <= N;i++) {
    r[i]=i;
  }
  for(int i = N;i>1;i--){
    int u = query(i, 1);
    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);
  }
  int cnt[N+1];
  fill(cnt, cnt+N+1, 1);
  for(int i = 1;i < N;i++){
    for(int j : g[i]){
      if(j < i) continue;
      int u;
      if(cnt[j] < N-1) {
        u = query(j, ++cnt[j]);
      } else continue;
      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 0 ms 344 KB Output is correct
5 Correct 3 ms 344 KB Output is correct
6 Correct 4 ms 600 KB Output is correct
7 Correct 3 ms 344 KB Output is correct
8 Correct 3 ms 344 KB Output is correct
9 Correct 4 ms 344 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 344 KB Output is correct
2 Correct 3 ms 344 KB Output is correct
3 Correct 4 ms 344 KB Output is correct
4 Correct 4 ms 344 KB Output is correct
5 Correct 4 ms 524 KB Output is correct
6 Correct 3 ms 344 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 5 ms 344 KB Output is correct
3 Correct 5 ms 412 KB Output is correct
4 Correct 3 ms 344 KB Output is correct
5 Correct 4 ms 344 KB Output is correct
6 Correct 4 ms 524 KB Output is correct
7 Correct 4 ms 344 KB Output is correct
8 Correct 4 ms 344 KB Output is correct
9 Correct 5 ms 520 KB Output is correct

Subtask #5
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 344 KB Output is correct
2 Correct 3 ms 344 KB Output is correct
3 Correct 4 ms 344 KB Output is correct
4 Correct 5 ms 344 KB Output is correct
5 Correct 4 ms 344 KB Output is correct
6 Correct 3 ms 344 KB Output is correct
7 Correct 3 ms 344 KB Output is correct
8 Correct 4 ms 344 KB Output is correct
9 Correct 3 ms 344 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 0 ms 344 KB Output is correct
5 Correct 3 ms 344 KB Output is correct
6 Correct 4 ms 600 KB Output is correct
7 Correct 3 ms 344 KB Output is correct
8 Correct 3 ms 344 KB Output is correct
9 Correct 4 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 5 ms 412 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 4 ms 344 KB Output is correct
15 Correct 4 ms 524 KB Output is correct
16 Correct 4 ms 344 KB Output is correct
17 Correct 4 ms 344 KB Output is correct
18 Correct 5 ms 520 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 4 ms 344 KB Output is correct
21 Correct 4 ms 344 KB Output is correct
22 Correct 4 ms 344 KB Output is correct
23 Correct 4 ms 344 KB Output is correct
24 Correct 3 ms 344 KB Output is correct
25 Correct 3 ms 344 KB Output is correct
26 Correct 3 ms 344 KB Output is correct
27 Correct 4 ms 344 KB Output is correct
28 Correct 4 ms 344 KB Output is correct
29 Correct 3 ms 528 KB Output is correct
30 Correct 3 ms 344 KB Output is correct
31 Correct 4 ms 344 KB Output is correct
32 Correct 4 ms 344 KB Output is correct
33 Correct 5 ms 344 KB Output is correct
34 Correct 3 ms 344 KB Output is correct
35 Correct 3 ms 344 KB Output is correct
36 Correct 3 ms 344 KB Output is correct
37 Correct 4 ms 344 KB Output is correct
38 Correct 4 ms 344 KB Output is correct
39 Correct 4 ms 344 KB Output is correct
40 Correct 4 ms 344 KB Output is correct
41 Correct 3 ms 520 KB Output is correct
42 Correct 3 ms 344 KB Output is correct
43 Correct 2 ms 344 KB Output is correct
44 Correct 3 ms 344 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 4 ms 344 KB Output is correct
5 Correct 3 ms 344 KB Output is correct
6 Correct 4 ms 344 KB Output is correct
7 Correct 5 ms 344 KB Output is correct
8 Correct 4 ms 344 KB Output is correct
9 Correct 3 ms 344 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 4 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 4 ms 344 KB Output is correct
15 Correct 3 ms 600 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 3 ms 344 KB Output is correct
19 Correct 4 ms 344 KB Output is correct
20 Correct 4 ms 412 KB Output is correct
21 Correct 3 ms 344 KB Output is correct
22 Correct 4 ms 344 KB Output is correct
23 Correct 5 ms 420 KB Output is correct
24 Correct 4 ms 344 KB Output is correct
25 Correct 4 ms 344 KB Output is correct
26 Correct 4 ms 344 KB Output is correct
27 Correct 5 ms 344 KB Output is correct
28 Correct 5 ms 412 KB Output is correct
29 Correct 2 ms 344 KB Output is correct
30 Correct 4 ms 416 KB Output is correct
31 Correct 5 ms 520 KB Output is correct
32 Correct 4 ms 344 KB Output is correct
33 Correct 4 ms 516 KB Output is correct
34 Correct 5 ms 416 KB Output is correct
35 Correct 3 ms 344 KB Output is correct
36 Correct 3 ms 344 KB Output is correct
37 Correct 3 ms 416 KB Output is correct
38 Correct 2 ms 344 KB Output is correct

Subtask #8
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 344 KB Output is correct
2 Correct 3 ms 344 KB Output is correct
3 Correct 4 ms 344 KB Output is correct
4 Correct 4 ms 344 KB Output is correct
5 Correct 4 ms 524 KB Output is correct
6 Correct 3 ms 344 KB Output is correct
7 Correct 4 ms 344 KB Output is correct
8 Correct 5 ms 516 KB Output is correct
9 Correct 4 ms 344 KB Output is correct
10 Correct 4 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 3 ms 420 KB Output is correct
13 Correct 6 ms 528 KB Output is correct
14 Correct 4 ms 344 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 4 ms 344 KB Output is correct
18 Correct 3 ms 344 KB Output is correct
19 Correct 4 ms 344 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 4 ms 344 KB Output is correct
22 Correct 3 ms 524 KB Output is correct
23 Correct 3 ms 520 KB Output is correct
24 Correct 4 ms 344 KB Output is correct
25 Correct 3 ms 600 KB Output is correct
26 Correct 5 ms 344 KB Output is correct
27 Correct 5 ms 344 KB Output is correct
28 Correct 3 ms 344 KB Output is correct
29 Correct 4 ms 344 KB Output is correct
30 Correct 4 ms 344 KB Output is correct
31 Correct 4 ms 344 KB Output is correct
32 Correct 5 ms 528 KB Output is correct
33 Correct 3 ms 344 KB Output is correct
34 Correct 4 ms 344 KB Output is correct
35 Correct 7 ms 344 KB Output is correct
36 Correct 3 ms 344 KB Output is correct
37 Correct 3 ms 524 KB Output is correct
38 Correct 4 ms 344 KB Output is correct
39 Correct 3 ms 344 KB Output is correct
40 Correct 3 ms 416 KB Output is correct