oj.uz

Submission #930595

# Submission time Handle Problem Language Result Execution time Memory
930595 2024-02-20T07:36:28 Z UmairAhmadMirza Joker (BOI20_joker) C++17
14 / 100
 2000 ms 120284 KB 
#include <bits/stdc++.h>
using namespace std;
int const N=2e5+5;
vector<int> adj[N];
bool dep[N];
int rep[N];
vector<int> com[N];
// int dp[N][N];
bool merge(int a,int b){
  int ra=a;
  int rb=b;
  a=rep[a];
  b=rep[b];
  // cout<<ra<<' '<<rb<<endl;
  if(a==b){
    if(dep[ra]==dep[rb])
      return 0;
    return 1;
  }
  if(com[a].size()>com[b].size()){
    swap(a,b);
    swap(ra,rb);
  }
  bool sw=0;
  if(dep[ra]==dep[rb])
    sw=1;
  for(auto i:com[a]){
    com[b].push_back(i);
    rep[i]=b;
    dep[i]^=sw;
  }
  com[a].clear();
  return 1;
}
int main() 
{
    int n,m,q;
    cin>>n>>m>>q;
    vector<pair<int,int>> edge;
    for(int i=0;i<m;i++){
      int a,b;
      cin>>a>>b;
      if(a>b)
        swap(a,b);
      edge.push_back({a,b});
    }
    // cout<<k<<endl;
    for(int i=0;i<q;i++){
      for(int i=1;i<=n;i++){
        rep[i]=i;
        com[i].clear();
        com[i].push_back(i);
      }
      int l,r;
      cin>>l>>r;
      l--;
      r--;
      string ans="NO";
      for(int i=0;i<m;i++){
        if(l<=i && i<=r)
          continue;
        if(merge(edge[i].first,edge[i].second)==0){
          ans="YES";
          break;
        }
      }
      cout<<ans<<endl;
    }
    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 10588 KB Output is correct
2 Correct 3 ms 10588 KB Output is correct
3 Correct 3 ms 10588 KB Output is correct
4 Correct 4 ms 10588 KB Output is correct
5 Correct 4 ms 10588 KB Output is correct
6 Correct 3 ms 10588 KB Output is correct
7 Correct 3 ms 10588 KB Output is correct
8 Correct 5 ms 10752 KB Output is correct
9 Correct 4 ms 10588 KB Output is correct
10 Correct 4 ms 10584 KB Output is correct
11 Correct 4 ms 10840 KB Output is correct
12 Correct 5 ms 10812 KB Output is correct
13 Correct 3 ms 10588 KB Output is correct
14 Correct 4 ms 10844 KB Output is correct
15 Correct 5 ms 10588 KB Output is correct
16 Correct 3 ms 10588 KB Output is correct
17 Correct 3 ms 10588 KB Output is correct
18 Correct 3 ms 10588 KB Output is correct
19 Correct 4 ms 10796 KB Output is correct
20 Correct 4 ms 10588 KB Output is correct
21 Correct 4 ms 10588 KB Output is correct
22 Correct 3 ms 10588 KB Output is correct
23 Correct 4 ms 10588 KB Output is correct
24 Correct 4 ms 10588 KB Output is correct
25 Correct 4 ms 10588 KB Output is correct
26 Correct 4 ms 10588 KB Output is correct
27 Correct 4 ms 10588 KB Output is correct
28 Correct 4 ms 10588 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 10588 KB Output is correct
2 Correct 3 ms 10588 KB Output is correct
3 Correct 3 ms 10588 KB Output is correct
4 Correct 4 ms 10588 KB Output is correct
5 Correct 4 ms 10588 KB Output is correct
6 Correct 3 ms 10588 KB Output is correct
7 Correct 3 ms 10588 KB Output is correct
8 Correct 5 ms 10752 KB Output is correct
9 Correct 4 ms 10588 KB Output is correct
10 Correct 4 ms 10584 KB Output is correct
11 Correct 4 ms 10840 KB Output is correct
12 Correct 5 ms 10812 KB Output is correct
13 Correct 3 ms 10588 KB Output is correct
14 Correct 4 ms 10844 KB Output is correct
15 Correct 5 ms 10588 KB Output is correct
16 Correct 3 ms 10588 KB Output is correct
17 Correct 3 ms 10588 KB Output is correct
18 Correct 3 ms 10588 KB Output is correct
19 Correct 4 ms 10796 KB Output is correct
20 Correct 4 ms 10588 KB Output is correct
21 Correct 4 ms 10588 KB Output is correct
22 Correct 3 ms 10588 KB Output is correct
23 Correct 4 ms 10588 KB Output is correct
24 Correct 4 ms 10588 KB Output is correct
25 Correct 4 ms 10588 KB Output is correct
26 Correct 4 ms 10588 KB Output is correct
27 Correct 4 ms 10588 KB Output is correct
28 Correct 4 ms 10588 KB Output is correct
29 Correct 46 ms 10912 KB Output is correct
30 Correct 55 ms 10988 KB Output is correct
31 Correct 47 ms 11000 KB Output is correct
32 Correct 29 ms 10928 KB Output is correct
33 Correct 20 ms 10844 KB Output is correct
34 Correct 42 ms 11004 KB Output is correct
35 Correct 62 ms 11068 KB Output is correct
36 Correct 39 ms 11096 KB Output is correct
37 Correct 79 ms 13136 KB Output is correct
38 Correct 82 ms 12128 KB Output is correct
39 Correct 62 ms 11456 KB Output is correct
40 Correct 40 ms 10844 KB Output is correct
41 Correct 45 ms 10844 KB Output is correct
42 Correct 39 ms 10844 KB Output is correct
43 Correct 28 ms 10844 KB Output is correct
44 Correct 45 ms 10992 KB Output is correct
45 Correct 44 ms 10840 KB Output is correct
46 Correct 54 ms 10844 KB Output is correct
47 Correct 33 ms 10816 KB Output is correct
48 Correct 37 ms 10996 KB Output is correct
49 Correct 46 ms 10912 KB Output is correct
50 Correct 56 ms 10844 KB Output is correct
51 Correct 31 ms 10980 KB Output is correct
52 Correct 38 ms 10992 KB Output is correct
53 Correct 47 ms 10844 KB Output is correct
54 Correct 59 ms 11036 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 10588 KB Output is correct
2 Correct 3 ms 10588 KB Output is correct
3 Execution timed out 2057 ms 120284 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 10588 KB Output is correct
2 Correct 3 ms 10588 KB Output is correct
3 Correct 3 ms 10588 KB Output is correct
4 Correct 4 ms 10588 KB Output is correct
5 Correct 4 ms 10588 KB Output is correct
6 Correct 3 ms 10588 KB Output is correct
7 Correct 3 ms 10588 KB Output is correct
8 Correct 5 ms 10752 KB Output is correct
9 Correct 4 ms 10588 KB Output is correct
10 Correct 4 ms 10584 KB Output is correct
11 Correct 4 ms 10840 KB Output is correct
12 Correct 5 ms 10812 KB Output is correct
13 Correct 3 ms 10588 KB Output is correct
14 Correct 4 ms 10844 KB Output is correct
15 Correct 5 ms 10588 KB Output is correct
16 Correct 3 ms 10588 KB Output is correct
17 Correct 3 ms 10588 KB Output is correct
18 Correct 3 ms 10588 KB Output is correct
19 Correct 4 ms 10796 KB Output is correct
20 Correct 4 ms 10588 KB Output is correct
21 Correct 4 ms 10588 KB Output is correct
22 Correct 3 ms 10588 KB Output is correct
23 Correct 4 ms 10588 KB Output is correct
24 Correct 4 ms 10588 KB Output is correct
25 Correct 4 ms 10588 KB Output is correct
26 Correct 4 ms 10588 KB Output is correct
27 Correct 4 ms 10588 KB Output is correct
28 Correct 4 ms 10588 KB Output is correct
29 Execution timed out 2057 ms 120284 KB Time limit exceeded
30 Halted 0 ms 0 KB -

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 10588 KB Output is correct
2 Correct 3 ms 10588 KB Output is correct
3 Correct 3 ms 10588 KB Output is correct
4 Correct 4 ms 10588 KB Output is correct
5 Correct 4 ms 10588 KB Output is correct
6 Correct 3 ms 10588 KB Output is correct
7 Correct 3 ms 10588 KB Output is correct
8 Correct 5 ms 10752 KB Output is correct
9 Correct 4 ms 10588 KB Output is correct
10 Correct 4 ms 10584 KB Output is correct
11 Correct 4 ms 10840 KB Output is correct
12 Correct 5 ms 10812 KB Output is correct
13 Correct 3 ms 10588 KB Output is correct
14 Correct 4 ms 10844 KB Output is correct
15 Correct 5 ms 10588 KB Output is correct
16 Correct 3 ms 10588 KB Output is correct
17 Correct 3 ms 10588 KB Output is correct
18 Correct 3 ms 10588 KB Output is correct
19 Correct 4 ms 10796 KB Output is correct
20 Correct 4 ms 10588 KB Output is correct
21 Correct 4 ms 10588 KB Output is correct
22 Correct 3 ms 10588 KB Output is correct
23 Correct 4 ms 10588 KB Output is correct
24 Correct 4 ms 10588 KB Output is correct
25 Correct 4 ms 10588 KB Output is correct
26 Correct 4 ms 10588 KB Output is correct
27 Correct 4 ms 10588 KB Output is correct
28 Correct 4 ms 10588 KB Output is correct
29 Correct 46 ms 10912 KB Output is correct
30 Correct 55 ms 10988 KB Output is correct
31 Correct 47 ms 11000 KB Output is correct
32 Correct 29 ms 10928 KB Output is correct
33 Correct 20 ms 10844 KB Output is correct
34 Correct 42 ms 11004 KB Output is correct
35 Correct 62 ms 11068 KB Output is correct
36 Correct 39 ms 11096 KB Output is correct
37 Correct 79 ms 13136 KB Output is correct
38 Correct 82 ms 12128 KB Output is correct
39 Correct 62 ms 11456 KB Output is correct
40 Correct 40 ms 10844 KB Output is correct
41 Correct 45 ms 10844 KB Output is correct
42 Correct 39 ms 10844 KB Output is correct
43 Correct 28 ms 10844 KB Output is correct
44 Correct 45 ms 10992 KB Output is correct
45 Correct 44 ms 10840 KB Output is correct
46 Correct 54 ms 10844 KB Output is correct
47 Correct 33 ms 10816 KB Output is correct
48 Correct 37 ms 10996 KB Output is correct
49 Correct 46 ms 10912 KB Output is correct
50 Correct 56 ms 10844 KB Output is correct
51 Correct 31 ms 10980 KB Output is correct
52 Correct 38 ms 10992 KB Output is correct
53 Correct 47 ms 10844 KB Output is correct
54 Correct 59 ms 11036 KB Output is correct
55 Execution timed out 2009 ms 64504 KB Time limit exceeded
56 Halted 0 ms 0 KB -

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 10588 KB Output is correct
2 Correct 3 ms 10588 KB Output is correct
3 Correct 3 ms 10588 KB Output is correct
4 Correct 4 ms 10588 KB Output is correct
5 Correct 4 ms 10588 KB Output is correct
6 Correct 3 ms 10588 KB Output is correct
7 Correct 3 ms 10588 KB Output is correct
8 Correct 5 ms 10752 KB Output is correct
9 Correct 4 ms 10588 KB Output is correct
10 Correct 4 ms 10584 KB Output is correct
11 Correct 4 ms 10840 KB Output is correct
12 Correct 5 ms 10812 KB Output is correct
13 Correct 3 ms 10588 KB Output is correct
14 Correct 4 ms 10844 KB Output is correct
15 Correct 5 ms 10588 KB Output is correct
16 Correct 3 ms 10588 KB Output is correct
17 Correct 3 ms 10588 KB Output is correct
18 Correct 3 ms 10588 KB Output is correct
19 Correct 4 ms 10796 KB Output is correct
20 Correct 4 ms 10588 KB Output is correct
21 Correct 4 ms 10588 KB Output is correct
22 Correct 3 ms 10588 KB Output is correct
23 Correct 4 ms 10588 KB Output is correct
24 Correct 4 ms 10588 KB Output is correct
25 Correct 4 ms 10588 KB Output is correct
26 Correct 4 ms 10588 KB Output is correct
27 Correct 4 ms 10588 KB Output is correct
28 Correct 4 ms 10588 KB Output is correct
29 Correct 46 ms 10912 KB Output is correct
30 Correct 55 ms 10988 KB Output is correct
31 Correct 47 ms 11000 KB Output is correct
32 Correct 29 ms 10928 KB Output is correct
33 Correct 20 ms 10844 KB Output is correct
34 Correct 42 ms 11004 KB Output is correct
35 Correct 62 ms 11068 KB Output is correct
36 Correct 39 ms 11096 KB Output is correct
37 Correct 79 ms 13136 KB Output is correct
38 Correct 82 ms 12128 KB Output is correct
39 Correct 62 ms 11456 KB Output is correct
40 Correct 40 ms 10844 KB Output is correct
41 Correct 45 ms 10844 KB Output is correct
42 Correct 39 ms 10844 KB Output is correct
43 Correct 28 ms 10844 KB Output is correct
44 Correct 45 ms 10992 KB Output is correct
45 Correct 44 ms 10840 KB Output is correct
46 Correct 54 ms 10844 KB Output is correct
47 Correct 33 ms 10816 KB Output is correct
48 Correct 37 ms 10996 KB Output is correct
49 Correct 46 ms 10912 KB Output is correct
50 Correct 56 ms 10844 KB Output is correct
51 Correct 31 ms 10980 KB Output is correct
52 Correct 38 ms 10992 KB Output is correct
53 Correct 47 ms 10844 KB Output is correct
54 Correct 59 ms 11036 KB Output is correct
55 Execution timed out 2057 ms 120284 KB Time limit exceeded
56 Halted 0 ms 0 KB -