oj.uz

Submission #1100832

# Submission time Handle Problem Language Result Execution time Memory
1100832 2024-10-14T18:53:43 Z imarn Making Friends on Joitter is Fun (JOI20_joitter2) C++14
100 / 100
 1183 ms 104520 KB 
#include<bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define plx pair<ll,int>
#define f first
#define s second
#define pb push_back
#define all(x) x.begin(),x.end()
#define vi vector<int>
#define vl vector<ll>
#define vvi vector<vi>
using namespace std;
const int mxn=1e5+5;
set<int>ch[mxn],g[mxn],gr[mxn];
ll sz[mxn]{0},pr[mxn]{0};
int get(int r){
    return pr[r]==r?r:pr[r]=get(pr[r]);
}queue<pii>qr;
void add(int a,int b){
    if(a==b)return;
    g[a].insert(b);
    gr[b].insert(a);
    if(g[b].count(a))qr.push({a,b});
}
ll rs=0;
void uni(int a,int b){
    a=get(a),b=get(b);
    if(a==b)return;
    if(ch[a].size()+gr[a].size()+g[a].size()>ch[b].size()+gr[b].size()+g[b].size())swap(a,b);
    rs += ((ll)ch[a].size())*sz[b] + ((ll)ch[b].size()*sz[a]);
    pr[a]=b;sz[b]+=sz[a];
    for(auto it : ch[a]){
        if(ch[b].count(it))rs-=sz[b];
        else {
            ch[b].insert(it);
        }
    }g[a].erase(b);gr[a].erase(b);gr[b].erase(a);g[b].erase(a);
    for(auto it : g[a]){
        add(b,it);
    }
    for(auto it : gr[a]){
        add(it,b);
    }
}
int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);
    int n,m;cin>>n>>m;
    for(int i=1;i<=n;i++)sz[i]=1,ch[i].insert(i),pr[i]=i;
    while(m--){
        int a,b;cin>>a>>b;b=get(b);
        if(a==b||ch[b].count(a)){
            cout<<rs<<'\n';continue;
        }rs+=sz[b];ch[b].insert(a);a=get(a);add(a,b);
        while(!qr.empty()){
            uni(qr.front().f,qr.front().s);qr.pop();
        }cout<<rs<<'\n';
    }
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 15696 KB Output is correct
2 Correct 4 ms 15696 KB Output is correct
3 Correct 4 ms 15952 KB Output is correct
4 Correct 3 ms 15784 KB Output is correct
5 Correct 4 ms 15952 KB Output is correct
6 Correct 3 ms 15696 KB Output is correct
7 Correct 4 ms 15952 KB Output is correct
8 Correct 4 ms 15952 KB Output is correct
9 Correct 4 ms 15952 KB Output is correct
10 Correct 3 ms 15908 KB Output is correct
11 Correct 4 ms 15952 KB Output is correct
12 Correct 3 ms 15952 KB Output is correct
13 Correct 4 ms 15952 KB Output is correct
14 Correct 4 ms 15952 KB Output is correct
15 Correct 4 ms 15952 KB Output is correct
16 Correct 3 ms 15952 KB Output is correct
17 Correct 3 ms 15952 KB Output is correct
18 Correct 3 ms 15952 KB Output is correct
19 Correct 4 ms 15952 KB Output is correct
20 Correct 3 ms 15808 KB Output is correct
21 Correct 4 ms 15952 KB Output is correct
22 Correct 3 ms 15952 KB Output is correct
23 Correct 3 ms 15952 KB Output is correct
24 Correct 3 ms 15952 KB Output is correct
25 Correct 3 ms 15952 KB Output is correct
26 Correct 3 ms 15952 KB Output is correct
27 Correct 3 ms 15976 KB Output is correct
28 Correct 3 ms 15952 KB Output is correct
29 Correct 3 ms 15952 KB Output is correct
30 Correct 3 ms 15952 KB Output is correct
31 Correct 3 ms 15952 KB Output is correct
32 Correct 3 ms 15952 KB Output is correct
33 Correct 4 ms 15952 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 15696 KB Output is correct
2 Correct 4 ms 15696 KB Output is correct
3 Correct 4 ms 15952 KB Output is correct
4 Correct 3 ms 15784 KB Output is correct
5 Correct 4 ms 15952 KB Output is correct
6 Correct 3 ms 15696 KB Output is correct
7 Correct 4 ms 15952 KB Output is correct
8 Correct 4 ms 15952 KB Output is correct
9 Correct 4 ms 15952 KB Output is correct
10 Correct 3 ms 15908 KB Output is correct
11 Correct 4 ms 15952 KB Output is correct
12 Correct 3 ms 15952 KB Output is correct
13 Correct 4 ms 15952 KB Output is correct
14 Correct 4 ms 15952 KB Output is correct
15 Correct 4 ms 15952 KB Output is correct
16 Correct 3 ms 15952 KB Output is correct
17 Correct 3 ms 15952 KB Output is correct
18 Correct 3 ms 15952 KB Output is correct
19 Correct 4 ms 15952 KB Output is correct
20 Correct 3 ms 15808 KB Output is correct
21 Correct 4 ms 15952 KB Output is correct
22 Correct 3 ms 15952 KB Output is correct
23 Correct 3 ms 15952 KB Output is correct
24 Correct 3 ms 15952 KB Output is correct
25 Correct 3 ms 15952 KB Output is correct
26 Correct 3 ms 15952 KB Output is correct
27 Correct 3 ms 15976 KB Output is correct
28 Correct 3 ms 15952 KB Output is correct
29 Correct 3 ms 15952 KB Output is correct
30 Correct 3 ms 15952 KB Output is correct
31 Correct 3 ms 15952 KB Output is correct
32 Correct 3 ms 15952 KB Output is correct
33 Correct 4 ms 15952 KB Output is correct
34 Correct 5 ms 15952 KB Output is correct
35 Correct 72 ms 19660 KB Output is correct
36 Correct 109 ms 25172 KB Output is correct
37 Correct 97 ms 22600 KB Output is correct
38 Correct 95 ms 24652 KB Output is correct
39 Correct 6 ms 16376 KB Output is correct
40 Correct 8 ms 16976 KB Output is correct
41 Correct 7 ms 16984 KB Output is correct
42 Correct 4 ms 16208 KB Output is correct
43 Correct 5 ms 16172 KB Output is correct
44 Correct 6 ms 16208 KB Output is correct
45 Correct 5 ms 16172 KB Output is correct
46 Correct 5 ms 16208 KB Output is correct
47 Correct 7 ms 16632 KB Output is correct
48 Correct 7 ms 16464 KB Output is correct
49 Correct 15 ms 17744 KB Output is correct
50 Correct 101 ms 22604 KB Output is correct
51 Correct 10 ms 16732 KB Output is correct
52 Correct 89 ms 23020 KB Output is correct
53 Correct 14 ms 17460 KB Output is correct
54 Correct 104 ms 21692 KB Output is correct
55 Correct 9 ms 16720 KB Output is correct
56 Correct 9 ms 16720 KB Output is correct
57 Correct 9 ms 16976 KB Output is correct
58 Correct 9 ms 16992 KB Output is correct
59 Correct 7 ms 16720 KB Output is correct
60 Correct 69 ms 19016 KB Output is correct
61 Correct 8 ms 16720 KB Output is correct
62 Correct 102 ms 21816 KB Output is correct

Subtask #3
83.0 / 83.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 15696 KB Output is correct
2 Correct 4 ms 15696 KB Output is correct
3 Correct 4 ms 15952 KB Output is correct
4 Correct 3 ms 15784 KB Output is correct
5 Correct 4 ms 15952 KB Output is correct
6 Correct 3 ms 15696 KB Output is correct
7 Correct 4 ms 15952 KB Output is correct
8 Correct 4 ms 15952 KB Output is correct
9 Correct 4 ms 15952 KB Output is correct
10 Correct 3 ms 15908 KB Output is correct
11 Correct 4 ms 15952 KB Output is correct
12 Correct 3 ms 15952 KB Output is correct
13 Correct 4 ms 15952 KB Output is correct
14 Correct 4 ms 15952 KB Output is correct
15 Correct 4 ms 15952 KB Output is correct
16 Correct 3 ms 15952 KB Output is correct
17 Correct 3 ms 15952 KB Output is correct
18 Correct 3 ms 15952 KB Output is correct
19 Correct 4 ms 15952 KB Output is correct
20 Correct 3 ms 15808 KB Output is correct
21 Correct 4 ms 15952 KB Output is correct
22 Correct 3 ms 15952 KB Output is correct
23 Correct 3 ms 15952 KB Output is correct
24 Correct 3 ms 15952 KB Output is correct
25 Correct 3 ms 15952 KB Output is correct
26 Correct 3 ms 15952 KB Output is correct
27 Correct 3 ms 15976 KB Output is correct
28 Correct 3 ms 15952 KB Output is correct
29 Correct 3 ms 15952 KB Output is correct
30 Correct 3 ms 15952 KB Output is correct
31 Correct 3 ms 15952 KB Output is correct
32 Correct 3 ms 15952 KB Output is correct
33 Correct 4 ms 15952 KB Output is correct
34 Correct 5 ms 15952 KB Output is correct
35 Correct 72 ms 19660 KB Output is correct
36 Correct 109 ms 25172 KB Output is correct
37 Correct 97 ms 22600 KB Output is correct
38 Correct 95 ms 24652 KB Output is correct
39 Correct 6 ms 16376 KB Output is correct
40 Correct 8 ms 16976 KB Output is correct
41 Correct 7 ms 16984 KB Output is correct
42 Correct 4 ms 16208 KB Output is correct
43 Correct 5 ms 16172 KB Output is correct
44 Correct 6 ms 16208 KB Output is correct
45 Correct 5 ms 16172 KB Output is correct
46 Correct 5 ms 16208 KB Output is correct
47 Correct 7 ms 16632 KB Output is correct
48 Correct 7 ms 16464 KB Output is correct
49 Correct 15 ms 17744 KB Output is correct
50 Correct 101 ms 22604 KB Output is correct
51 Correct 10 ms 16732 KB Output is correct
52 Correct 89 ms 23020 KB Output is correct
53 Correct 14 ms 17460 KB Output is correct
54 Correct 104 ms 21692 KB Output is correct
55 Correct 9 ms 16720 KB Output is correct
56 Correct 9 ms 16720 KB Output is correct
57 Correct 9 ms 16976 KB Output is correct
58 Correct 9 ms 16992 KB Output is correct
59 Correct 7 ms 16720 KB Output is correct
60 Correct 69 ms 19016 KB Output is correct
61 Correct 8 ms 16720 KB Output is correct
62 Correct 102 ms 21816 KB Output is correct
63 Correct 382 ms 65028 KB Output is correct
64 Correct 406 ms 67912 KB Output is correct
65 Correct 351 ms 64840 KB Output is correct
66 Correct 159 ms 34196 KB Output is correct
67 Correct 546 ms 95168 KB Output is correct
68 Correct 144 ms 33608 KB Output is correct
69 Correct 273 ms 35588 KB Output is correct
70 Correct 156 ms 34376 KB Output is correct
71 Correct 179 ms 34376 KB Output is correct
72 Correct 380 ms 54600 KB Output is correct
73 Correct 366 ms 57468 KB Output is correct
74 Correct 1183 ms 104520 KB Output is correct
75 Correct 505 ms 46920 KB Output is correct
76 Correct 682 ms 70000 KB Output is correct
77 Correct 710 ms 70216 KB Output is correct
78 Correct 184 ms 41544 KB Output is correct
79 Correct 321 ms 46920 KB Output is correct
80 Correct 184 ms 40008 KB Output is correct
81 Correct 325 ms 44284 KB Output is correct
82 Correct 709 ms 66704 KB Output is correct
83 Correct 700 ms 65608 KB Output is correct
84 Correct 604 ms 68764 KB Output is correct
85 Correct 613 ms 69492 KB Output is correct
86 Correct 299 ms 66372 KB Output is correct
87 Correct 268 ms 69448 KB Output is correct
88 Correct 386 ms 56136 KB Output is correct
89 Correct 694 ms 67400 KB Output is correct