oj.uz

Submission #910835

# Submission time Handle Problem Language Result Execution time Memory
910835 2024-01-18T08:24:39 Z imarn Making Friends on Joitter is Fun (JOI20_joitter2) C++14
100 / 100
 2011 ms 109384 KB 
#include<bits/stdc++.h>
#define ld long double
#define pii pair<long long,int>
#define pll pair<ll,ll>
#define all(x) x.begin(),x.end()
#define pb push_back
#define f first
#define s second
#define vi vector<ll>
#define vvi vector<vi>
#define vpii vector<pii>
#define ll long long
#define siz(x) (ll)x.size()
using namespace std;
const int N=1e5+5;
ll pr[N],sz[N];
ll ans=0;
set<int>g[N],rg[N],ch[N];
int get(int r){
    return pr[r]==r?r:pr[r]=get(pr[r]);
}queue<pii>mer;
void addedge(int a,int b){
    g[a].insert(b);rg[b].insert(a);
    if(g[b].count(a))mer.push({a,b});
}
int gsz(int x){
    return ch[x].size()+g[x].size()+rg[x].size();
}
void uni(int a,int b){
    if(a==b)return;
    if(gsz(a)<gsz(b))swap(a,b);
    ans += siz(ch[a])*sz[b]+siz(ch[b])*sz[a];
    pr[b]=a;sz[a]+=sz[b];
    for(auto it : ch[b]){
        if(ch[a].count(it))ans-=sz[a];
        else ch[a].insert(it);
    }g[b].erase(a);rg[b].erase(a);g[a].erase(b);rg[a].erase(b);
    for(auto it : g[b]){
        addedge(a,it);
    }
    for(auto it : rg[b]){
        addedge(it,a);
    }
}
int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);
    int n,m;cin>>n>>m;
    for(int i=1;i<=n;i++)pr[i]=i,sz[i]=1,ch[i].insert(i);
    while(m--){
        int a,b;cin>>a>>b;
        b=get(b);
        if(a==b||ch[b].count(a)){
            cout<<ans<<'\n';
            continue;
        }ch[b].insert(a);
        ans+=sz[b];a=get(a);
        addedge(a,b);
        while(!mer.empty()){
            uni(get(mer.front().f),get(mer.front().s));mer.pop();
        }cout<<ans<<'\n';
    }
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 14940 KB Output is correct
2 Correct 4 ms 14940 KB Output is correct
3 Correct 4 ms 14940 KB Output is correct
4 Correct 4 ms 14940 KB Output is correct
5 Correct 4 ms 15000 KB Output is correct
6 Correct 4 ms 14940 KB Output is correct
7 Correct 4 ms 14940 KB Output is correct
8 Correct 5 ms 14936 KB Output is correct
9 Correct 5 ms 14960 KB Output is correct
10 Correct 5 ms 14936 KB Output is correct
11 Correct 4 ms 14940 KB Output is correct
12 Correct 4 ms 14936 KB Output is correct
13 Correct 4 ms 14940 KB Output is correct
14 Correct 4 ms 14940 KB Output is correct
15 Correct 4 ms 14940 KB Output is correct
16 Correct 4 ms 14940 KB Output is correct
17 Correct 4 ms 14940 KB Output is correct
18 Correct 4 ms 14940 KB Output is correct
19 Correct 4 ms 14940 KB Output is correct
20 Correct 5 ms 14940 KB Output is correct
21 Correct 5 ms 15008 KB Output is correct
22 Correct 4 ms 14936 KB Output is correct
23 Correct 4 ms 14940 KB Output is correct
24 Correct 5 ms 14936 KB Output is correct
25 Correct 4 ms 14940 KB Output is correct
26 Correct 4 ms 14936 KB Output is correct
27 Correct 4 ms 14940 KB Output is correct
28 Correct 5 ms 14940 KB Output is correct
29 Correct 5 ms 14936 KB Output is correct
30 Correct 4 ms 14940 KB Output is correct
31 Correct 6 ms 14940 KB Output is correct
32 Correct 5 ms 14940 KB Output is correct
33 Correct 4 ms 14940 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 14940 KB Output is correct
2 Correct 4 ms 14940 KB Output is correct
3 Correct 4 ms 14940 KB Output is correct
4 Correct 4 ms 14940 KB Output is correct
5 Correct 4 ms 15000 KB Output is correct
6 Correct 4 ms 14940 KB Output is correct
7 Correct 4 ms 14940 KB Output is correct
8 Correct 5 ms 14936 KB Output is correct
9 Correct 5 ms 14960 KB Output is correct
10 Correct 5 ms 14936 KB Output is correct
11 Correct 4 ms 14940 KB Output is correct
12 Correct 4 ms 14936 KB Output is correct
13 Correct 4 ms 14940 KB Output is correct
14 Correct 4 ms 14940 KB Output is correct
15 Correct 4 ms 14940 KB Output is correct
16 Correct 4 ms 14940 KB Output is correct
17 Correct 4 ms 14940 KB Output is correct
18 Correct 4 ms 14940 KB Output is correct
19 Correct 4 ms 14940 KB Output is correct
20 Correct 5 ms 14940 KB Output is correct
21 Correct 5 ms 15008 KB Output is correct
22 Correct 4 ms 14936 KB Output is correct
23 Correct 4 ms 14940 KB Output is correct
24 Correct 5 ms 14936 KB Output is correct
25 Correct 4 ms 14940 KB Output is correct
26 Correct 4 ms 14936 KB Output is correct
27 Correct 4 ms 14940 KB Output is correct
28 Correct 5 ms 14940 KB Output is correct
29 Correct 5 ms 14936 KB Output is correct
30 Correct 4 ms 14940 KB Output is correct
31 Correct 6 ms 14940 KB Output is correct
32 Correct 5 ms 14940 KB Output is correct
33 Correct 4 ms 14940 KB Output is correct
34 Correct 6 ms 14940 KB Output is correct
35 Correct 114 ms 21144 KB Output is correct
36 Correct 131 ms 24420 KB Output is correct
37 Correct 124 ms 24452 KB Output is correct
38 Correct 112 ms 23820 KB Output is correct
39 Correct 7 ms 15268 KB Output is correct
40 Correct 10 ms 16220 KB Output is correct
41 Correct 10 ms 15964 KB Output is correct
42 Correct 7 ms 15196 KB Output is correct
43 Correct 8 ms 15196 KB Output is correct
44 Correct 8 ms 15368 KB Output is correct
45 Correct 7 ms 15196 KB Output is correct
46 Correct 8 ms 15380 KB Output is correct
47 Correct 8 ms 15708 KB Output is correct
48 Correct 9 ms 15708 KB Output is correct
49 Correct 14 ms 16732 KB Output is correct
50 Correct 123 ms 24528 KB Output is correct
51 Correct 14 ms 15868 KB Output is correct
52 Correct 102 ms 22356 KB Output is correct
53 Correct 19 ms 16472 KB Output is correct
54 Correct 108 ms 23388 KB Output is correct
55 Correct 10 ms 15964 KB Output is correct
56 Correct 9 ms 15960 KB Output is correct
57 Correct 11 ms 15960 KB Output is correct
58 Correct 9 ms 15964 KB Output is correct
59 Correct 7 ms 15548 KB Output is correct
60 Correct 82 ms 20660 KB Output is correct
61 Correct 10 ms 15708 KB Output is correct
62 Correct 105 ms 23636 KB Output is correct

Subtask #3
83.0 / 83.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 14940 KB Output is correct
2 Correct 4 ms 14940 KB Output is correct
3 Correct 4 ms 14940 KB Output is correct
4 Correct 4 ms 14940 KB Output is correct
5 Correct 4 ms 15000 KB Output is correct
6 Correct 4 ms 14940 KB Output is correct
7 Correct 4 ms 14940 KB Output is correct
8 Correct 5 ms 14936 KB Output is correct
9 Correct 5 ms 14960 KB Output is correct
10 Correct 5 ms 14936 KB Output is correct
11 Correct 4 ms 14940 KB Output is correct
12 Correct 4 ms 14936 KB Output is correct
13 Correct 4 ms 14940 KB Output is correct
14 Correct 4 ms 14940 KB Output is correct
15 Correct 4 ms 14940 KB Output is correct
16 Correct 4 ms 14940 KB Output is correct
17 Correct 4 ms 14940 KB Output is correct
18 Correct 4 ms 14940 KB Output is correct
19 Correct 4 ms 14940 KB Output is correct
20 Correct 5 ms 14940 KB Output is correct
21 Correct 5 ms 15008 KB Output is correct
22 Correct 4 ms 14936 KB Output is correct
23 Correct 4 ms 14940 KB Output is correct
24 Correct 5 ms 14936 KB Output is correct
25 Correct 4 ms 14940 KB Output is correct
26 Correct 4 ms 14936 KB Output is correct
27 Correct 4 ms 14940 KB Output is correct
28 Correct 5 ms 14940 KB Output is correct
29 Correct 5 ms 14936 KB Output is correct
30 Correct 4 ms 14940 KB Output is correct
31 Correct 6 ms 14940 KB Output is correct
32 Correct 5 ms 14940 KB Output is correct
33 Correct 4 ms 14940 KB Output is correct
34 Correct 6 ms 14940 KB Output is correct
35 Correct 114 ms 21144 KB Output is correct
36 Correct 131 ms 24420 KB Output is correct
37 Correct 124 ms 24452 KB Output is correct
38 Correct 112 ms 23820 KB Output is correct
39 Correct 7 ms 15268 KB Output is correct
40 Correct 10 ms 16220 KB Output is correct
41 Correct 10 ms 15964 KB Output is correct
42 Correct 7 ms 15196 KB Output is correct
43 Correct 8 ms 15196 KB Output is correct
44 Correct 8 ms 15368 KB Output is correct
45 Correct 7 ms 15196 KB Output is correct
46 Correct 8 ms 15380 KB Output is correct
47 Correct 8 ms 15708 KB Output is correct
48 Correct 9 ms 15708 KB Output is correct
49 Correct 14 ms 16732 KB Output is correct
50 Correct 123 ms 24528 KB Output is correct
51 Correct 14 ms 15868 KB Output is correct
52 Correct 102 ms 22356 KB Output is correct
53 Correct 19 ms 16472 KB Output is correct
54 Correct 108 ms 23388 KB Output is correct
55 Correct 10 ms 15964 KB Output is correct
56 Correct 9 ms 15960 KB Output is correct
57 Correct 11 ms 15960 KB Output is correct
58 Correct 9 ms 15964 KB Output is correct
59 Correct 7 ms 15548 KB Output is correct
60 Correct 82 ms 20660 KB Output is correct
61 Correct 10 ms 15708 KB Output is correct
62 Correct 105 ms 23636 KB Output is correct
63 Correct 742 ms 68684 KB Output is correct
64 Correct 678 ms 68548 KB Output is correct
65 Correct 706 ms 68740 KB Output is correct
66 Correct 227 ms 34604 KB Output is correct
67 Correct 902 ms 97520 KB Output is correct
68 Correct 220 ms 34644 KB Output is correct
69 Correct 378 ms 35560 KB Output is correct
70 Correct 221 ms 34388 KB Output is correct
71 Correct 197 ms 34384 KB Output is correct
72 Correct 606 ms 54964 KB Output is correct
73 Correct 622 ms 57688 KB Output is correct
74 Correct 2011 ms 109384 KB Output is correct
75 Correct 641 ms 47172 KB Output is correct
76 Correct 1299 ms 71344 KB Output is correct
77 Correct 1198 ms 71792 KB Output is correct
78 Correct 338 ms 41736 KB Output is correct
79 Correct 680 ms 47552 KB Output is correct
80 Correct 294 ms 40568 KB Output is correct
81 Correct 418 ms 44588 KB Output is correct
82 Correct 1121 ms 66800 KB Output is correct
83 Correct 1208 ms 67120 KB Output is correct
84 Correct 987 ms 69720 KB Output is correct
85 Correct 959 ms 70008 KB Output is correct
86 Correct 373 ms 67344 KB Output is correct
87 Correct 383 ms 69456 KB Output is correct
88 Correct 618 ms 56252 KB Output is correct
89 Correct 1163 ms 69112 KB Output is correct