oj.uz

Submission #1117224

# Submission time Handle Problem Language Result Execution time Memory
1117224 2024-11-23T02:47:01 Z vjudge1 Making Friends on Joitter is Fun (JOI20_joitter2) C++17
17 / 100
 428 ms 67404 KB 
#include<bits/stdc++.h>
using namespace std;
int par[100100],sz[100100],ans;
set<int>adj[100100],radj[100100],st[100100];
queue<pair<int,int>> ops;
int abp(int a){
    return par[a]?par[a]=abp(par[a]):a;
}
void weak(int a,int b){
    adj[a].insert(b);
    radj[b].insert(a);
    if(adj[b].count(a))
        ops.push({a,b});
}
inline int ssz(int x){
    return st[x].size()+radj[x].size()+adj[x].size();
}
void merge(int a,int b){
    if(a==b)return;
    ans+=sz[a]*st[b].size()+sz[b]*st[a].size();
    if(ssz(a)<ssz(b))swap(a,b);
    par[b]=a;sz[a]+=sz[b];
    for(auto i:st[b])
        if(st[a].count(i))
            ans-=sz[a];
        else st[a].insert(i);
    adj[a].erase(b);
    adj[b].erase(a);
    radj[a].erase(b);
    radj[b].erase(a);
    for(auto i:adj[b])
        radj[i].erase(b),
        weak(a,i);
    for(auto i:radj[b])
        adj[i].erase(b),
        weak(i,a);
}
void dostuf(int a,int b){
    b=abp(b);
    if(abp(a)!=b&&!st[b].count(a)){
        st[b].insert(a);
        ans+=sz[b];
        a=abp(a);
        weak(a,b);
        while(ops.size()){
            auto[a,b]=ops.front();
            ops.pop();
            merge(abp(a),abp(b));
        }
    }
}
signed main(){
    cin.tie(0)->sync_with_stdio(0);
    int n,m;
    cin>>n>>m;
    for(int i=1;i<=n;i++)
        st[i].insert(i),sz[i]=1;
    while(m--){
        int a,b;
        cin>>a>>b;
        dostuf(a,b);
        cout<<ans<<'\n';
    }
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 14928 KB Output is correct
2 Correct 3 ms 14928 KB Output is correct
3 Correct 3 ms 15096 KB Output is correct
4 Correct 3 ms 14928 KB Output is correct
5 Correct 3 ms 14928 KB Output is correct
6 Correct 3 ms 14928 KB Output is correct
7 Correct 4 ms 14928 KB Output is correct
8 Correct 3 ms 14928 KB Output is correct
9 Correct 3 ms 14928 KB Output is correct
10 Correct 3 ms 14928 KB Output is correct
11 Correct 4 ms 14928 KB Output is correct
12 Correct 3 ms 14772 KB Output is correct
13 Correct 3 ms 14928 KB Output is correct
14 Correct 3 ms 14928 KB Output is correct
15 Correct 4 ms 14928 KB Output is correct
16 Correct 4 ms 14928 KB Output is correct
17 Correct 3 ms 14928 KB Output is correct
18 Correct 3 ms 14928 KB Output is correct
19 Correct 5 ms 14928 KB Output is correct
20 Correct 4 ms 14928 KB Output is correct
21 Correct 3 ms 14928 KB Output is correct
22 Correct 3 ms 14928 KB Output is correct
23 Correct 4 ms 14928 KB Output is correct
24 Correct 3 ms 14928 KB Output is correct
25 Correct 3 ms 14928 KB Output is correct
26 Correct 3 ms 15152 KB Output is correct
27 Correct 3 ms 14928 KB Output is correct
28 Correct 4 ms 14928 KB Output is correct
29 Correct 4 ms 14944 KB Output is correct
30 Correct 3 ms 14928 KB Output is correct
31 Correct 4 ms 14928 KB Output is correct
32 Correct 3 ms 14788 KB Output is correct
33 Correct 4 ms 15096 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 14928 KB Output is correct
2 Correct 3 ms 14928 KB Output is correct
3 Correct 3 ms 15096 KB Output is correct
4 Correct 3 ms 14928 KB Output is correct
5 Correct 3 ms 14928 KB Output is correct
6 Correct 3 ms 14928 KB Output is correct
7 Correct 4 ms 14928 KB Output is correct
8 Correct 3 ms 14928 KB Output is correct
9 Correct 3 ms 14928 KB Output is correct
10 Correct 3 ms 14928 KB Output is correct
11 Correct 4 ms 14928 KB Output is correct
12 Correct 3 ms 14772 KB Output is correct
13 Correct 3 ms 14928 KB Output is correct
14 Correct 3 ms 14928 KB Output is correct
15 Correct 4 ms 14928 KB Output is correct
16 Correct 4 ms 14928 KB Output is correct
17 Correct 3 ms 14928 KB Output is correct
18 Correct 3 ms 14928 KB Output is correct
19 Correct 5 ms 14928 KB Output is correct
20 Correct 4 ms 14928 KB Output is correct
21 Correct 3 ms 14928 KB Output is correct
22 Correct 3 ms 14928 KB Output is correct
23 Correct 4 ms 14928 KB Output is correct
24 Correct 3 ms 14928 KB Output is correct
25 Correct 3 ms 14928 KB Output is correct
26 Correct 3 ms 15152 KB Output is correct
27 Correct 3 ms 14928 KB Output is correct
28 Correct 4 ms 14928 KB Output is correct
29 Correct 4 ms 14944 KB Output is correct
30 Correct 3 ms 14928 KB Output is correct
31 Correct 4 ms 14928 KB Output is correct
32 Correct 3 ms 14788 KB Output is correct
33 Correct 4 ms 15096 KB Output is correct
34 Correct 5 ms 14928 KB Output is correct
35 Correct 56 ms 20784 KB Output is correct
36 Correct 85 ms 23428 KB Output is correct
37 Correct 81 ms 23624 KB Output is correct
38 Correct 75 ms 23120 KB Output is correct
39 Correct 5 ms 15184 KB Output is correct
40 Correct 6 ms 15696 KB Output is correct
41 Correct 7 ms 15696 KB Output is correct
42 Correct 5 ms 15320 KB Output is correct
43 Correct 6 ms 15184 KB Output is correct
44 Correct 6 ms 15184 KB Output is correct
45 Correct 7 ms 15184 KB Output is correct
46 Correct 5 ms 15184 KB Output is correct
47 Correct 6 ms 15440 KB Output is correct
48 Correct 6 ms 15440 KB Output is correct
49 Correct 11 ms 16120 KB Output is correct
50 Correct 75 ms 23712 KB Output is correct
51 Correct 8 ms 15440 KB Output is correct
52 Correct 63 ms 22088 KB Output is correct
53 Correct 11 ms 15952 KB Output is correct
54 Correct 74 ms 22896 KB Output is correct
55 Correct 8 ms 15696 KB Output is correct
56 Correct 7 ms 15696 KB Output is correct
57 Correct 8 ms 15696 KB Output is correct
58 Correct 9 ms 15696 KB Output is correct
59 Correct 7 ms 15696 KB Output is correct
60 Correct 55 ms 20584 KB Output is correct
61 Correct 7 ms 15440 KB Output is correct
62 Correct 77 ms 23116 KB Output is correct

Subtask #3
0 / 83.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 14928 KB Output is correct
2 Correct 3 ms 14928 KB Output is correct
3 Correct 3 ms 15096 KB Output is correct
4 Correct 3 ms 14928 KB Output is correct
5 Correct 3 ms 14928 KB Output is correct
6 Correct 3 ms 14928 KB Output is correct
7 Correct 4 ms 14928 KB Output is correct
8 Correct 3 ms 14928 KB Output is correct
9 Correct 3 ms 14928 KB Output is correct
10 Correct 3 ms 14928 KB Output is correct
11 Correct 4 ms 14928 KB Output is correct
12 Correct 3 ms 14772 KB Output is correct
13 Correct 3 ms 14928 KB Output is correct
14 Correct 3 ms 14928 KB Output is correct
15 Correct 4 ms 14928 KB Output is correct
16 Correct 4 ms 14928 KB Output is correct
17 Correct 3 ms 14928 KB Output is correct
18 Correct 3 ms 14928 KB Output is correct
19 Correct 5 ms 14928 KB Output is correct
20 Correct 4 ms 14928 KB Output is correct
21 Correct 3 ms 14928 KB Output is correct
22 Correct 3 ms 14928 KB Output is correct
23 Correct 4 ms 14928 KB Output is correct
24 Correct 3 ms 14928 KB Output is correct
25 Correct 3 ms 14928 KB Output is correct
26 Correct 3 ms 15152 KB Output is correct
27 Correct 3 ms 14928 KB Output is correct
28 Correct 4 ms 14928 KB Output is correct
29 Correct 4 ms 14944 KB Output is correct
30 Correct 3 ms 14928 KB Output is correct
31 Correct 4 ms 14928 KB Output is correct
32 Correct 3 ms 14788 KB Output is correct
33 Correct 4 ms 15096 KB Output is correct
34 Correct 5 ms 14928 KB Output is correct
35 Correct 56 ms 20784 KB Output is correct
36 Correct 85 ms 23428 KB Output is correct
37 Correct 81 ms 23624 KB Output is correct
38 Correct 75 ms 23120 KB Output is correct
39 Correct 5 ms 15184 KB Output is correct
40 Correct 6 ms 15696 KB Output is correct
41 Correct 7 ms 15696 KB Output is correct
42 Correct 5 ms 15320 KB Output is correct
43 Correct 6 ms 15184 KB Output is correct
44 Correct 6 ms 15184 KB Output is correct
45 Correct 7 ms 15184 KB Output is correct
46 Correct 5 ms 15184 KB Output is correct
47 Correct 6 ms 15440 KB Output is correct
48 Correct 6 ms 15440 KB Output is correct
49 Correct 11 ms 16120 KB Output is correct
50 Correct 75 ms 23712 KB Output is correct
51 Correct 8 ms 15440 KB Output is correct
52 Correct 63 ms 22088 KB Output is correct
53 Correct 11 ms 15952 KB Output is correct
54 Correct 74 ms 22896 KB Output is correct
55 Correct 8 ms 15696 KB Output is correct
56 Correct 7 ms 15696 KB Output is correct
57 Correct 8 ms 15696 KB Output is correct
58 Correct 9 ms 15696 KB Output is correct
59 Correct 7 ms 15696 KB Output is correct
60 Correct 55 ms 20584 KB Output is correct
61 Correct 7 ms 15440 KB Output is correct
62 Correct 77 ms 23116 KB Output is correct
63 Correct 428 ms 67400 KB Output is correct
64 Correct 392 ms 67404 KB Output is correct
65 Correct 386 ms 67400 KB Output is correct
66 Incorrect 161 ms 33608 KB Output isn't correct
67 Halted 0 ms 0 KB -