oj.uz

Submission #939376

# Submission time Handle Problem Language Result Execution time Memory
939376 2024-03-06T10:08:21 Z groshi Making Friends on Joitter is Fun (JOI20_joitter2) C++17
100 / 100
 429 ms 60928 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
set<pair<int,int> > A[200000];
set<int> B[200000];
int ojc[200000],wiel[200000];
int wynik=0;
void rozpatrz(int x,int y);
int find_u(int x)
{
    if(ojc[x]==x)
        return x;
    else return ojc[x]=find_u(ojc[x]);
}
void union_f(int x,int y)
{
    x=find_u(x);
    y=find_u(y);
    if(wiel[x]>wiel[y])
        swap(x,y);
    for(int i=0;i<2;i++)
    {
        while(true)
        {
            auto it=A[x].lower_bound({y,-1});
            if(it==A[x].end())
                break;
            pair<int,int> para=*it;
            if(para.first>y)
                break;
            A[x].erase(para);
            B[para.first].erase(para.second);
            wynik-=wiel[y];
        }
        swap(x,y);
    }
    wynik+=wiel[x]*wiel[y]*2;
    vector<pair<int,int> > pomoc;
    for(auto i:A[x])
        pomoc.push_back({i.second,i.first});
    for(auto i : A[x])
    {
        B[i.first].erase(i.second);
        wynik-=wiel[i.first];
    }
    wynik-=wiel[x]*B[x].size();
    wynik+=wiel[x]*B[y].size();
    for(auto i:B[x])
        A[find_u(i)].erase({x,i});
    for(auto i:B[x])
        pomoc.push_back({i,x});
    wiel[y]+=wiel[x];
    ojc[x]=y;
    A[x].clear();
    B[x].clear();
    for(auto i:pomoc)
        rozpatrz(i.first,i.second);
}
void rozpatrz(int x,int y)
{
    if(find_u(x)==find_u(y))
        return;
    y=find_u(y);
    auto it=A[y].lower_bound({find_u(x),-1});
    if(it!=A[y].end())
    {
        pair<int,int> para=*it;
        if(para.first==find_u(x))
        {
            union_f(x,y);
            return;
        }
    }
    if(B[y].find(x)!=B[y].end())
        return;
    B[y].insert(x);
    A[find_u(x)].insert({y,x});
    wynik+=wiel[y];
}
int32_t main()
{
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(0);
    int n,m;
    cin>>n>>m;
    for(int i=1;i<=n;i++)
        ojc[i]=i,wiel[i]=1;
    while(m--)
    {
        int x,y;
        cin>>x>>y;
        rozpatrz(x,y);
        cout<<wynik<<"\n";
    }
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22108 KB Output is correct
2 Correct 5 ms 22108 KB Output is correct
3 Correct 5 ms 22108 KB Output is correct
4 Correct 5 ms 22168 KB Output is correct
5 Correct 4 ms 22200 KB Output is correct
6 Correct 5 ms 22104 KB Output is correct
7 Correct 5 ms 22108 KB Output is correct
8 Correct 5 ms 22108 KB Output is correct
9 Correct 5 ms 22108 KB Output is correct
10 Correct 5 ms 22108 KB Output is correct
11 Correct 5 ms 22156 KB Output is correct
12 Correct 6 ms 22360 KB Output is correct
13 Correct 4 ms 22204 KB Output is correct
14 Correct 5 ms 22108 KB Output is correct
15 Correct 5 ms 22104 KB Output is correct
16 Correct 5 ms 22104 KB Output is correct
17 Correct 5 ms 22104 KB Output is correct
18 Correct 5 ms 22104 KB Output is correct
19 Correct 5 ms 22108 KB Output is correct
20 Correct 5 ms 22204 KB Output is correct
21 Correct 5 ms 22160 KB Output is correct
22 Correct 5 ms 22108 KB Output is correct
23 Correct 5 ms 22108 KB Output is correct
24 Correct 5 ms 22108 KB Output is correct
25 Correct 6 ms 22108 KB Output is correct
26 Correct 5 ms 22104 KB Output is correct
27 Correct 5 ms 22156 KB Output is correct
28 Correct 6 ms 22108 KB Output is correct
29 Correct 5 ms 22156 KB Output is correct
30 Correct 5 ms 22104 KB Output is correct
31 Correct 5 ms 22108 KB Output is correct
32 Correct 5 ms 22108 KB Output is correct
33 Correct 5 ms 22104 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22108 KB Output is correct
2 Correct 5 ms 22108 KB Output is correct
3 Correct 5 ms 22108 KB Output is correct
4 Correct 5 ms 22168 KB Output is correct
5 Correct 4 ms 22200 KB Output is correct
6 Correct 5 ms 22104 KB Output is correct
7 Correct 5 ms 22108 KB Output is correct
8 Correct 5 ms 22108 KB Output is correct
9 Correct 5 ms 22108 KB Output is correct
10 Correct 5 ms 22108 KB Output is correct
11 Correct 5 ms 22156 KB Output is correct
12 Correct 6 ms 22360 KB Output is correct
13 Correct 4 ms 22204 KB Output is correct
14 Correct 5 ms 22108 KB Output is correct
15 Correct 5 ms 22104 KB Output is correct
16 Correct 5 ms 22104 KB Output is correct
17 Correct 5 ms 22104 KB Output is correct
18 Correct 5 ms 22104 KB Output is correct
19 Correct 5 ms 22108 KB Output is correct
20 Correct 5 ms 22204 KB Output is correct
21 Correct 5 ms 22160 KB Output is correct
22 Correct 5 ms 22108 KB Output is correct
23 Correct 5 ms 22108 KB Output is correct
24 Correct 5 ms 22108 KB Output is correct
25 Correct 6 ms 22108 KB Output is correct
26 Correct 5 ms 22104 KB Output is correct
27 Correct 5 ms 22156 KB Output is correct
28 Correct 6 ms 22108 KB Output is correct
29 Correct 5 ms 22156 KB Output is correct
30 Correct 5 ms 22104 KB Output is correct
31 Correct 5 ms 22108 KB Output is correct
32 Correct 5 ms 22108 KB Output is correct
33 Correct 5 ms 22104 KB Output is correct
34 Correct 7 ms 22364 KB Output is correct
35 Correct 62 ms 27656 KB Output is correct
36 Correct 87 ms 30148 KB Output is correct
37 Correct 80 ms 30308 KB Output is correct
38 Correct 77 ms 30032 KB Output is correct
39 Correct 6 ms 22108 KB Output is correct
40 Correct 6 ms 22360 KB Output is correct
41 Correct 6 ms 22364 KB Output is correct
42 Correct 7 ms 22108 KB Output is correct
43 Correct 6 ms 22616 KB Output is correct
44 Correct 7 ms 22364 KB Output is correct
45 Correct 6 ms 22108 KB Output is correct
46 Correct 6 ms 22108 KB Output is correct
47 Correct 6 ms 22364 KB Output is correct
48 Correct 7 ms 22364 KB Output is correct
49 Correct 12 ms 22876 KB Output is correct
50 Correct 88 ms 30352 KB Output is correct
51 Correct 9 ms 22616 KB Output is correct
52 Correct 77 ms 29012 KB Output is correct
53 Correct 12 ms 23132 KB Output is correct
54 Correct 74 ms 29704 KB Output is correct
55 Correct 9 ms 22472 KB Output is correct
56 Correct 8 ms 22720 KB Output is correct
57 Correct 7 ms 22620 KB Output is correct
58 Correct 7 ms 22620 KB Output is correct
59 Correct 6 ms 22196 KB Output is correct
60 Correct 62 ms 26968 KB Output is correct
61 Correct 8 ms 22364 KB Output is correct
62 Correct 77 ms 29864 KB Output is correct

Subtask #3
83.0 / 83.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22108 KB Output is correct
2 Correct 5 ms 22108 KB Output is correct
3 Correct 5 ms 22108 KB Output is correct
4 Correct 5 ms 22168 KB Output is correct
5 Correct 4 ms 22200 KB Output is correct
6 Correct 5 ms 22104 KB Output is correct
7 Correct 5 ms 22108 KB Output is correct
8 Correct 5 ms 22108 KB Output is correct
9 Correct 5 ms 22108 KB Output is correct
10 Correct 5 ms 22108 KB Output is correct
11 Correct 5 ms 22156 KB Output is correct
12 Correct 6 ms 22360 KB Output is correct
13 Correct 4 ms 22204 KB Output is correct
14 Correct 5 ms 22108 KB Output is correct
15 Correct 5 ms 22104 KB Output is correct
16 Correct 5 ms 22104 KB Output is correct
17 Correct 5 ms 22104 KB Output is correct
18 Correct 5 ms 22104 KB Output is correct
19 Correct 5 ms 22108 KB Output is correct
20 Correct 5 ms 22204 KB Output is correct
21 Correct 5 ms 22160 KB Output is correct
22 Correct 5 ms 22108 KB Output is correct
23 Correct 5 ms 22108 KB Output is correct
24 Correct 5 ms 22108 KB Output is correct
25 Correct 6 ms 22108 KB Output is correct
26 Correct 5 ms 22104 KB Output is correct
27 Correct 5 ms 22156 KB Output is correct
28 Correct 6 ms 22108 KB Output is correct
29 Correct 5 ms 22156 KB Output is correct
30 Correct 5 ms 22104 KB Output is correct
31 Correct 5 ms 22108 KB Output is correct
32 Correct 5 ms 22108 KB Output is correct
33 Correct 5 ms 22104 KB Output is correct
34 Correct 7 ms 22364 KB Output is correct
35 Correct 62 ms 27656 KB Output is correct
36 Correct 87 ms 30148 KB Output is correct
37 Correct 80 ms 30308 KB Output is correct
38 Correct 77 ms 30032 KB Output is correct
39 Correct 6 ms 22108 KB Output is correct
40 Correct 6 ms 22360 KB Output is correct
41 Correct 6 ms 22364 KB Output is correct
42 Correct 7 ms 22108 KB Output is correct
43 Correct 6 ms 22616 KB Output is correct
44 Correct 7 ms 22364 KB Output is correct
45 Correct 6 ms 22108 KB Output is correct
46 Correct 6 ms 22108 KB Output is correct
47 Correct 6 ms 22364 KB Output is correct
48 Correct 7 ms 22364 KB Output is correct
49 Correct 12 ms 22876 KB Output is correct
50 Correct 88 ms 30352 KB Output is correct
51 Correct 9 ms 22616 KB Output is correct
52 Correct 77 ms 29012 KB Output is correct
53 Correct 12 ms 23132 KB Output is correct
54 Correct 74 ms 29704 KB Output is correct
55 Correct 9 ms 22472 KB Output is correct
56 Correct 8 ms 22720 KB Output is correct
57 Correct 7 ms 22620 KB Output is correct
58 Correct 7 ms 22620 KB Output is correct
59 Correct 6 ms 22196 KB Output is correct
60 Correct 62 ms 26968 KB Output is correct
61 Correct 8 ms 22364 KB Output is correct
62 Correct 77 ms 29864 KB Output is correct
63 Correct 328 ms 60928 KB Output is correct
64 Correct 334 ms 60620 KB Output is correct
65 Correct 312 ms 60496 KB Output is correct
66 Correct 66 ms 26708 KB Output is correct
67 Correct 128 ms 31428 KB Output is correct
68 Correct 70 ms 26704 KB Output is correct
69 Correct 200 ms 32068 KB Output is correct
70 Correct 73 ms 26644 KB Output is correct
71 Correct 84 ms 26684 KB Output is correct
72 Correct 167 ms 31464 KB Output is correct
73 Correct 180 ms 31504 KB Output is correct
74 Correct 409 ms 43092 KB Output is correct
75 Correct 312 ms 37156 KB Output is correct
76 Correct 429 ms 41100 KB Output is correct
77 Correct 379 ms 40964 KB Output is correct
78 Correct 146 ms 30888 KB Output is correct
79 Correct 257 ms 34680 KB Output is correct
80 Correct 141 ms 31260 KB Output is correct
81 Correct 193 ms 34408 KB Output is correct
82 Correct 401 ms 47656 KB Output is correct
83 Correct 408 ms 47728 KB Output is correct
84 Correct 346 ms 48220 KB Output is correct
85 Correct 327 ms 48028 KB Output is correct
86 Correct 85 ms 25788 KB Output is correct
87 Correct 127 ms 28188 KB Output is correct
88 Correct 149 ms 31476 KB Output is correct
89 Correct 360 ms 40276 KB Output is correct