oj.uz

답안 #1055693

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1055693 2024-08-13T03:30:09 Z vjudge1 조이터에서 친구를 만드는건 재밌어 (JOI20_joitter2) C++17
100 / 100
 962 ms 109140 KB 
#include<bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC target("avx2")
#define ll long long
#define pii pair<ll,ll>
#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>g[mxn],gr[mxn],ch[mxn];
int pr[mxn];
ll sz[mxn]{0};
int get(int r){
    return pr[r]==r?r:pr[r]=get(pr[r]);
}queue<pii>qr;ll ans=0;
void ins(int a,int b){
    g[a].insert(b);gr[b].insert(a);
    if(g[b].count(a))qr.push({a,b});
}
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()+g[b].size()+gr[b].size())swap(a,b);
    ans+=(ll)ch[a].size()*sz[b]+(ll)ch[b].size()*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);gr[b].erase(a);g[a].erase(b);gr  [a].erase(b);
    for(auto it : gr[b])ins(it,a);
    for(auto it : g[b])ins(a,it);
}
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,ch[i].insert(i),sz[i]=1;
    for(int i=1;i<=m;i++){
        int a,b;cin>>a>>b;b=get(b);
        if(a==b||ch[b].count(a)){cout<<ans<<'\n';continue;}
        ch[b].insert(a);a=get(a);ins(a,b);ans+=sz[b];
        while(!qr.empty())uni(qr.front().f,qr.front().s),qr.pop();
        cout<<ans<<'\n';
    }
}

Subtask #1
1.0 / 1.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 14428 KB Output is correct
2 Correct 5 ms 14560 KB Output is correct
3 Correct 5 ms 14428 KB Output is correct
4 Correct 5 ms 14428 KB Output is correct
5 Correct 5 ms 14428 KB Output is correct
6 Correct 5 ms 14424 KB Output is correct
7 Correct 6 ms 14596 KB Output is correct
8 Correct 5 ms 14428 KB Output is correct
9 Correct 5 ms 14472 KB Output is correct
10 Correct 5 ms 14428 KB Output is correct
11 Correct 5 ms 14428 KB Output is correct
12 Correct 6 ms 14428 KB Output is correct
13 Correct 4 ms 14428 KB Output is correct
14 Correct 5 ms 14520 KB Output is correct
15 Correct 5 ms 14428 KB Output is correct
16 Correct 5 ms 14540 KB Output is correct
17 Correct 5 ms 14428 KB Output is correct
18 Correct 5 ms 14424 KB Output is correct
19 Correct 5 ms 14428 KB Output is correct
20 Correct 5 ms 14428 KB Output is correct
21 Correct 6 ms 14428 KB Output is correct
22 Correct 5 ms 14428 KB Output is correct
23 Correct 5 ms 14428 KB Output is correct
24 Correct 5 ms 14428 KB Output is correct
25 Correct 5 ms 14428 KB Output is correct
26 Correct 5 ms 14428 KB Output is correct
27 Correct 5 ms 14428 KB Output is correct
28 Correct 5 ms 14428 KB Output is correct
29 Correct 5 ms 14384 KB Output is correct
30 Correct 5 ms 14428 KB Output is correct
31 Correct 5 ms 14428 KB Output is correct
32 Correct 6 ms 14560 KB Output is correct
33 Correct 5 ms 14572 KB Output is correct

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 14428 KB Output is correct
2 Correct 5 ms 14560 KB Output is correct
3 Correct 5 ms 14428 KB Output is correct
4 Correct 5 ms 14428 KB Output is correct
5 Correct 5 ms 14428 KB Output is correct
6 Correct 5 ms 14424 KB Output is correct
7 Correct 6 ms 14596 KB Output is correct
8 Correct 5 ms 14428 KB Output is correct
9 Correct 5 ms 14472 KB Output is correct
10 Correct 5 ms 14428 KB Output is correct
11 Correct 5 ms 14428 KB Output is correct
12 Correct 6 ms 14428 KB Output is correct
13 Correct 4 ms 14428 KB Output is correct
14 Correct 5 ms 14520 KB Output is correct
15 Correct 5 ms 14428 KB Output is correct
16 Correct 5 ms 14540 KB Output is correct
17 Correct 5 ms 14428 KB Output is correct
18 Correct 5 ms 14424 KB Output is correct
19 Correct 5 ms 14428 KB Output is correct
20 Correct 5 ms 14428 KB Output is correct
21 Correct 6 ms 14428 KB Output is correct
22 Correct 5 ms 14428 KB Output is correct
23 Correct 5 ms 14428 KB Output is correct
24 Correct 5 ms 14428 KB Output is correct
25 Correct 5 ms 14428 KB Output is correct
26 Correct 5 ms 14428 KB Output is correct
27 Correct 5 ms 14428 KB Output is correct
28 Correct 5 ms 14428 KB Output is correct
29 Correct 5 ms 14384 KB Output is correct
30 Correct 5 ms 14428 KB Output is correct
31 Correct 5 ms 14428 KB Output is correct
32 Correct 6 ms 14560 KB Output is correct
33 Correct 5 ms 14572 KB Output is correct
34 Correct 7 ms 14684 KB Output is correct
35 Correct 61 ms 20632 KB Output is correct
36 Correct 85 ms 23892 KB Output is correct
37 Correct 83 ms 23892 KB Output is correct
38 Correct 84 ms 23492 KB Output is correct
39 Correct 6 ms 14684 KB Output is correct
40 Correct 11 ms 15708 KB Output is correct
41 Correct 9 ms 15732 KB Output is correct
42 Correct 6 ms 14680 KB Output is correct
43 Correct 7 ms 14888 KB Output is correct
44 Correct 6 ms 14940 KB Output is correct
45 Correct 7 ms 14940 KB Output is correct
46 Correct 6 ms 14684 KB Output is correct
47 Correct 8 ms 15256 KB Output is correct
48 Correct 8 ms 15192 KB Output is correct
49 Correct 13 ms 16216 KB Output is correct
50 Correct 83 ms 24144 KB Output is correct
51 Correct 10 ms 15452 KB Output is correct
52 Correct 73 ms 21952 KB Output is correct
53 Correct 15 ms 15964 KB Output is correct
54 Correct 77 ms 23052 KB Output is correct
55 Correct 10 ms 15452 KB Output is correct
56 Correct 10 ms 15452 KB Output is correct
57 Correct 9 ms 15448 KB Output is correct
58 Correct 9 ms 15452 KB Output is correct
59 Correct 7 ms 15196 KB Output is correct
60 Correct 60 ms 20052 KB Output is correct
61 Correct 9 ms 15196 KB Output is correct
62 Correct 83 ms 23216 KB Output is correct

Subtask #3
83.0 / 83.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 14428 KB Output is correct
2 Correct 5 ms 14560 KB Output is correct
3 Correct 5 ms 14428 KB Output is correct
4 Correct 5 ms 14428 KB Output is correct
5 Correct 5 ms 14428 KB Output is correct
6 Correct 5 ms 14424 KB Output is correct
7 Correct 6 ms 14596 KB Output is correct
8 Correct 5 ms 14428 KB Output is correct
9 Correct 5 ms 14472 KB Output is correct
10 Correct 5 ms 14428 KB Output is correct
11 Correct 5 ms 14428 KB Output is correct
12 Correct 6 ms 14428 KB Output is correct
13 Correct 4 ms 14428 KB Output is correct
14 Correct 5 ms 14520 KB Output is correct
15 Correct 5 ms 14428 KB Output is correct
16 Correct 5 ms 14540 KB Output is correct
17 Correct 5 ms 14428 KB Output is correct
18 Correct 5 ms 14424 KB Output is correct
19 Correct 5 ms 14428 KB Output is correct
20 Correct 5 ms 14428 KB Output is correct
21 Correct 6 ms 14428 KB Output is correct
22 Correct 5 ms 14428 KB Output is correct
23 Correct 5 ms 14428 KB Output is correct
24 Correct 5 ms 14428 KB Output is correct
25 Correct 5 ms 14428 KB Output is correct
26 Correct 5 ms 14428 KB Output is correct
27 Correct 5 ms 14428 KB Output is correct
28 Correct 5 ms 14428 KB Output is correct
29 Correct 5 ms 14384 KB Output is correct
30 Correct 5 ms 14428 KB Output is correct
31 Correct 5 ms 14428 KB Output is correct
32 Correct 6 ms 14560 KB Output is correct
33 Correct 5 ms 14572 KB Output is correct
34 Correct 7 ms 14684 KB Output is correct
35 Correct 61 ms 20632 KB Output is correct
36 Correct 85 ms 23892 KB Output is correct
37 Correct 83 ms 23892 KB Output is correct
38 Correct 84 ms 23492 KB Output is correct
39 Correct 6 ms 14684 KB Output is correct
40 Correct 11 ms 15708 KB Output is correct
41 Correct 9 ms 15732 KB Output is correct
42 Correct 6 ms 14680 KB Output is correct
43 Correct 7 ms 14888 KB Output is correct
44 Correct 6 ms 14940 KB Output is correct
45 Correct 7 ms 14940 KB Output is correct
46 Correct 6 ms 14684 KB Output is correct
47 Correct 8 ms 15256 KB Output is correct
48 Correct 8 ms 15192 KB Output is correct
49 Correct 13 ms 16216 KB Output is correct
50 Correct 83 ms 24144 KB Output is correct
51 Correct 10 ms 15452 KB Output is correct
52 Correct 73 ms 21952 KB Output is correct
53 Correct 15 ms 15964 KB Output is correct
54 Correct 77 ms 23052 KB Output is correct
55 Correct 10 ms 15452 KB Output is correct
56 Correct 10 ms 15452 KB Output is correct
57 Correct 9 ms 15448 KB Output is correct
58 Correct 9 ms 15452 KB Output is correct
59 Correct 7 ms 15196 KB Output is correct
60 Correct 60 ms 20052 KB Output is correct
61 Correct 9 ms 15196 KB Output is correct
62 Correct 83 ms 23216 KB Output is correct
63 Correct 318 ms 68156 KB Output is correct
64 Correct 329 ms 68136 KB Output is correct
65 Correct 313 ms 67920 KB Output is correct
66 Correct 127 ms 34132 KB Output is correct
67 Correct 458 ms 97104 KB Output is correct
68 Correct 123 ms 34132 KB Output is correct
69 Correct 232 ms 35220 KB Output is correct
70 Correct 156 ms 34128 KB Output is correct
71 Correct 134 ms 34132 KB Output is correct
72 Correct 304 ms 54608 KB Output is correct
73 Correct 321 ms 57424 KB Output is correct
74 Correct 962 ms 109140 KB Output is correct
75 Correct 354 ms 46420 KB Output is correct
76 Correct 578 ms 70968 KB Output is correct
77 Correct 612 ms 71204 KB Output is correct
78 Correct 140 ms 41300 KB Output is correct
79 Correct 278 ms 46932 KB Output is correct
80 Correct 129 ms 40156 KB Output is correct
81 Correct 234 ms 44144 KB Output is correct
82 Correct 585 ms 66260 KB Output is correct
83 Correct 566 ms 66604 KB Output is correct
84 Correct 471 ms 69200 KB Output is correct
85 Correct 490 ms 69352 KB Output is correct
86 Correct 206 ms 66928 KB Output is correct
87 Correct 222 ms 69024 KB Output is correct
88 Correct 345 ms 55892 KB Output is correct
89 Correct 611 ms 68492 KB Output is correct