oj.uz

Submission #1117225

# Submission time Handle Problem Language Result Execution time Memory
1117225 2024-11-23T02:47:43 Z vjudge1 Making Friends on Joitter is Fun (JOI20_joitter2) C++17
100 / 100
 734 ms 69628 KB 
#include<bits/stdc++.h>
#define int long long
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 14928 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 3 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 15096 KB Output is correct
11 Correct 3 ms 14928 KB Output is correct
12 Correct 3 ms 14928 KB Output is correct
13 Correct 3 ms 14968 KB Output is correct
14 Correct 3 ms 14928 KB Output is correct
15 Correct 4 ms 14928 KB Output is correct
16 Correct 3 ms 15096 KB Output is correct
17 Correct 3 ms 14928 KB Output is correct
18 Correct 4 ms 14928 KB Output is correct
19 Correct 3 ms 14928 KB Output is correct
20 Correct 3 ms 14928 KB Output is correct
21 Correct 4 ms 14928 KB Output is correct
22 Correct 3 ms 14928 KB Output is correct
23 Correct 4 ms 14960 KB Output is correct
24 Correct 4 ms 14928 KB Output is correct
25 Correct 4 ms 14928 KB Output is correct
26 Correct 6 ms 14928 KB Output is correct
27 Correct 4 ms 15100 KB Output is correct
28 Correct 3 ms 14928 KB Output is correct
29 Correct 3 ms 14928 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 14928 KB Output is correct
33 Correct 4 ms 15100 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 14928 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 3 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 15096 KB Output is correct
11 Correct 3 ms 14928 KB Output is correct
12 Correct 3 ms 14928 KB Output is correct
13 Correct 3 ms 14968 KB Output is correct
14 Correct 3 ms 14928 KB Output is correct
15 Correct 4 ms 14928 KB Output is correct
16 Correct 3 ms 15096 KB Output is correct
17 Correct 3 ms 14928 KB Output is correct
18 Correct 4 ms 14928 KB Output is correct
19 Correct 3 ms 14928 KB Output is correct
20 Correct 3 ms 14928 KB Output is correct
21 Correct 4 ms 14928 KB Output is correct
22 Correct 3 ms 14928 KB Output is correct
23 Correct 4 ms 14960 KB Output is correct
24 Correct 4 ms 14928 KB Output is correct
25 Correct 4 ms 14928 KB Output is correct
26 Correct 6 ms 14928 KB Output is correct
27 Correct 4 ms 15100 KB Output is correct
28 Correct 3 ms 14928 KB Output is correct
29 Correct 3 ms 14928 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 14928 KB Output is correct
33 Correct 4 ms 15100 KB Output is correct
34 Correct 5 ms 14928 KB Output is correct
35 Correct 56 ms 18612 KB Output is correct
36 Correct 96 ms 20932 KB Output is correct
37 Correct 77 ms 21064 KB Output is correct
38 Correct 71 ms 20656 KB Output is correct
39 Correct 5 ms 15184 KB Output is correct
40 Correct 6 ms 15480 KB Output is correct
41 Correct 6 ms 15440 KB Output is correct
42 Correct 4 ms 15184 KB Output is correct
43 Correct 6 ms 15184 KB Output is correct
44 Correct 6 ms 15172 KB Output is correct
45 Correct 4 ms 15288 KB Output is correct
46 Correct 5 ms 15184 KB Output is correct
47 Correct 7 ms 15408 KB Output is correct
48 Correct 6 ms 15440 KB Output is correct
49 Correct 11 ms 16376 KB Output is correct
50 Correct 78 ms 21252 KB Output is correct
51 Correct 8 ms 15440 KB Output is correct
52 Correct 61 ms 19528 KB Output is correct
53 Correct 10 ms 15952 KB Output is correct
54 Correct 70 ms 20264 KB Output is correct
55 Correct 8 ms 15696 KB Output is correct
56 Correct 9 ms 15696 KB Output is correct
57 Correct 7 ms 15696 KB Output is correct
58 Correct 7 ms 15696 KB Output is correct
59 Correct 6 ms 15696 KB Output is correct
60 Correct 53 ms 17992 KB Output is correct
61 Correct 6 ms 15612 KB Output is correct
62 Correct 74 ms 20644 KB Output is correct

Subtask #3
83.0 / 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 14928 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 3 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 15096 KB Output is correct
11 Correct 3 ms 14928 KB Output is correct
12 Correct 3 ms 14928 KB Output is correct
13 Correct 3 ms 14968 KB Output is correct
14 Correct 3 ms 14928 KB Output is correct
15 Correct 4 ms 14928 KB Output is correct
16 Correct 3 ms 15096 KB Output is correct
17 Correct 3 ms 14928 KB Output is correct
18 Correct 4 ms 14928 KB Output is correct
19 Correct 3 ms 14928 KB Output is correct
20 Correct 3 ms 14928 KB Output is correct
21 Correct 4 ms 14928 KB Output is correct
22 Correct 3 ms 14928 KB Output is correct
23 Correct 4 ms 14960 KB Output is correct
24 Correct 4 ms 14928 KB Output is correct
25 Correct 4 ms 14928 KB Output is correct
26 Correct 6 ms 14928 KB Output is correct
27 Correct 4 ms 15100 KB Output is correct
28 Correct 3 ms 14928 KB Output is correct
29 Correct 3 ms 14928 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 14928 KB Output is correct
33 Correct 4 ms 15100 KB Output is correct
34 Correct 5 ms 14928 KB Output is correct
35 Correct 56 ms 18612 KB Output is correct
36 Correct 96 ms 20932 KB Output is correct
37 Correct 77 ms 21064 KB Output is correct
38 Correct 71 ms 20656 KB Output is correct
39 Correct 5 ms 15184 KB Output is correct
40 Correct 6 ms 15480 KB Output is correct
41 Correct 6 ms 15440 KB Output is correct
42 Correct 4 ms 15184 KB Output is correct
43 Correct 6 ms 15184 KB Output is correct
44 Correct 6 ms 15172 KB Output is correct
45 Correct 4 ms 15288 KB Output is correct
46 Correct 5 ms 15184 KB Output is correct
47 Correct 7 ms 15408 KB Output is correct
48 Correct 6 ms 15440 KB Output is correct
49 Correct 11 ms 16376 KB Output is correct
50 Correct 78 ms 21252 KB Output is correct
51 Correct 8 ms 15440 KB Output is correct
52 Correct 61 ms 19528 KB Output is correct
53 Correct 10 ms 15952 KB Output is correct
54 Correct 70 ms 20264 KB Output is correct
55 Correct 8 ms 15696 KB Output is correct
56 Correct 9 ms 15696 KB Output is correct
57 Correct 7 ms 15696 KB Output is correct
58 Correct 7 ms 15696 KB Output is correct
59 Correct 6 ms 15696 KB Output is correct
60 Correct 53 ms 17992 KB Output is correct
61 Correct 6 ms 15612 KB Output is correct
62 Correct 74 ms 20644 KB Output is correct
63 Correct 462 ms 64068 KB Output is correct
64 Correct 432 ms 64184 KB Output is correct
65 Correct 401 ms 64328 KB Output is correct
66 Correct 157 ms 32176 KB Output is correct
67 Correct 277 ms 61512 KB Output is correct
68 Correct 157 ms 34632 KB Output is correct
69 Correct 273 ms 35656 KB Output is correct
70 Correct 186 ms 34524 KB Output is correct
71 Correct 182 ms 34632 KB Output is correct
72 Correct 325 ms 45572 KB Output is correct
73 Correct 319 ms 47176 KB Output is correct
74 Correct 734 ms 69604 KB Output is correct
75 Correct 409 ms 42488 KB Output is correct
76 Correct 560 ms 54536 KB Output is correct
77 Correct 526 ms 54648 KB Output is correct
78 Correct 174 ms 38216 KB Output is correct
79 Correct 292 ms 42568 KB Output is correct
80 Correct 157 ms 36936 KB Output is correct
81 Correct 286 ms 40780 KB Output is correct
82 Correct 652 ms 55112 KB Output is correct
83 Correct 611 ms 55112 KB Output is correct
84 Correct 479 ms 53700 KB Output is correct
85 Correct 423 ms 53832 KB Output is correct
86 Correct 236 ms 67420 KB Output is correct
87 Correct 305 ms 69628 KB Output is correct
88 Correct 347 ms 46352 KB Output is correct
89 Correct 591 ms 52356 KB Output is correct