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답안 #824743

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
824743 2023-08-14T09:21:12 Z winter0101 조이터에서 친구를 만드는건 재밌어 (JOI20_joitter2) C++14
100 / 100
 556 ms 43720 KB 
#include<bits/stdc++.h>
using namespace std;
#define all(fl) fl.begin(),fl.end()
#define pb push_back
#define fi first
#define se second
#define for1(i,j,k) for(int i=j;i<=k;i++)
#define for2(i,j,k) for(int i=j;i>=k;i--)
#define for3(i,j,k,l) for(int i=j;i<=k;i+=l)
#define lb lower_bound
#define ub upper_bound
#define sz(a) (int)a.size()
#define pii pair<int,int>
#define pli pair<long long,int>
#define gcd __gcd
#define lcm(x,y) x*y/__gcd(x,y)
#define pil pair<int,long long>
#define pll pair<long long,long long>
#define eb emplace_back
//#define int long long
const int maxn=1e5+9;
set<pii>a[maxn];
set<int>b[maxn];
int f[maxn];
int findset(int u){
if (f[u]<0)return u;
return f[u]=findset(f[u]);
}
long long ans=0;
void add(int u,int v){
int x=findset(u),y=findset(v);
if (x==y)return;
auto it=a[y].lower_bound({x,-1});
if (it!=a[y].end()&&(*it).fi==x){
    if (sz(a[x])+sz(b[x])<sz(a[y])+sz(b[y])){
        swap(x,y);
        swap(u,v);
    }
    vector<pii>ad;
    for (auto p:a[y]){
        //p.fi clique p.se thuoc y
        b[p.fi].erase(p.se);
        ans-=abs(f[p.fi]);
        if (p.fi!=x)ad.pb({p.se,p.fi});
    }
    ans+=1ll*abs(f[y])*(2*(abs(f[x]))+sz(b[x])-sz(b[y]));
    for (auto p:b[y]){
        int pr=findset(p);
        a[pr].erase({y,p});
        if (pr!=x)ad.pb({p,x});
    }
    f[x]+=f[y];
    f[y]=x;
    for (auto p:ad)add(p.fi,p.se);
}
else if (b[y].find(u)==b[y].end()){
    ans+=abs(f[y]);
    b[y].insert(u);
    a[x].insert({y,u});
}
}
signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    //freopen("temp.INP","r",stdin);
    //freopen("temp.OUT","w",stdout);
    int n,m;
    cin>>n>>m;
    for1(i,1,n)f[i]=-1;
    for1(i,1,m){
        int u,v;
        cin>>u>>v;
        add(u,v);
        cout<<ans<<'\n';
    }

}

Subtask #1
1.0 / 1.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 9684 KB Output is correct
2 Correct 4 ms 9684 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 4 ms 9684 KB Output is correct
5 Correct 5 ms 9684 KB Output is correct
6 Correct 5 ms 9712 KB Output is correct
7 Correct 5 ms 9684 KB Output is correct
8 Correct 5 ms 9716 KB Output is correct
9 Correct 6 ms 9684 KB Output is correct
10 Correct 4 ms 9684 KB Output is correct
11 Correct 4 ms 9684 KB Output is correct
12 Correct 4 ms 9684 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct
14 Correct 5 ms 9684 KB Output is correct
15 Correct 4 ms 9684 KB Output is correct
16 Correct 4 ms 9684 KB Output is correct
17 Correct 6 ms 9620 KB Output is correct
18 Correct 4 ms 9684 KB Output is correct
19 Correct 4 ms 9684 KB Output is correct
20 Correct 4 ms 9724 KB Output is correct
21 Correct 6 ms 9684 KB Output is correct
22 Correct 5 ms 9684 KB Output is correct
23 Correct 4 ms 9684 KB Output is correct
24 Correct 4 ms 9684 KB Output is correct
25 Correct 5 ms 9684 KB Output is correct
26 Correct 4 ms 9684 KB Output is correct
27 Correct 4 ms 9684 KB Output is correct
28 Correct 4 ms 9684 KB Output is correct
29 Correct 5 ms 9684 KB Output is correct
30 Correct 5 ms 9684 KB Output is correct
31 Correct 6 ms 9684 KB Output is correct
32 Correct 4 ms 9684 KB Output is correct
33 Correct 5 ms 9684 KB Output is correct

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 9684 KB Output is correct
2 Correct 4 ms 9684 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 4 ms 9684 KB Output is correct
5 Correct 5 ms 9684 KB Output is correct
6 Correct 5 ms 9712 KB Output is correct
7 Correct 5 ms 9684 KB Output is correct
8 Correct 5 ms 9716 KB Output is correct
9 Correct 6 ms 9684 KB Output is correct
10 Correct 4 ms 9684 KB Output is correct
11 Correct 4 ms 9684 KB Output is correct
12 Correct 4 ms 9684 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct
14 Correct 5 ms 9684 KB Output is correct
15 Correct 4 ms 9684 KB Output is correct
16 Correct 4 ms 9684 KB Output is correct
17 Correct 6 ms 9620 KB Output is correct
18 Correct 4 ms 9684 KB Output is correct
19 Correct 4 ms 9684 KB Output is correct
20 Correct 4 ms 9724 KB Output is correct
21 Correct 6 ms 9684 KB Output is correct
22 Correct 5 ms 9684 KB Output is correct
23 Correct 4 ms 9684 KB Output is correct
24 Correct 4 ms 9684 KB Output is correct
25 Correct 5 ms 9684 KB Output is correct
26 Correct 4 ms 9684 KB Output is correct
27 Correct 4 ms 9684 KB Output is correct
28 Correct 4 ms 9684 KB Output is correct
29 Correct 5 ms 9684 KB Output is correct
30 Correct 5 ms 9684 KB Output is correct
31 Correct 6 ms 9684 KB Output is correct
32 Correct 4 ms 9684 KB Output is correct
33 Correct 5 ms 9684 KB Output is correct
34 Correct 6 ms 9812 KB Output is correct
35 Correct 58 ms 15232 KB Output is correct
36 Correct 75 ms 17472 KB Output is correct
37 Correct 75 ms 17544 KB Output is correct
38 Correct 85 ms 17296 KB Output is correct
39 Correct 6 ms 9812 KB Output is correct
40 Correct 6 ms 9832 KB Output is correct
41 Correct 6 ms 9812 KB Output is correct
42 Correct 6 ms 9788 KB Output is correct
43 Correct 6 ms 9840 KB Output is correct
44 Correct 8 ms 9812 KB Output is correct
45 Correct 5 ms 9812 KB Output is correct
46 Correct 7 ms 9812 KB Output is correct
47 Correct 6 ms 9832 KB Output is correct
48 Correct 6 ms 9860 KB Output is correct
49 Correct 10 ms 10624 KB Output is correct
50 Correct 75 ms 17600 KB Output is correct
51 Correct 9 ms 10068 KB Output is correct
52 Correct 82 ms 16268 KB Output is correct
53 Correct 9 ms 10452 KB Output is correct
54 Correct 73 ms 16908 KB Output is correct
55 Correct 8 ms 10112 KB Output is correct
56 Correct 7 ms 10124 KB Output is correct
57 Correct 9 ms 10188 KB Output is correct
58 Correct 7 ms 10196 KB Output is correct
59 Correct 7 ms 9772 KB Output is correct
60 Correct 60 ms 14712 KB Output is correct
61 Correct 6 ms 9940 KB Output is correct
62 Correct 74 ms 17176 KB Output is correct

Subtask #3
83.0 / 83.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 9684 KB Output is correct
2 Correct 4 ms 9684 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 4 ms 9684 KB Output is correct
5 Correct 5 ms 9684 KB Output is correct
6 Correct 5 ms 9712 KB Output is correct
7 Correct 5 ms 9684 KB Output is correct
8 Correct 5 ms 9716 KB Output is correct
9 Correct 6 ms 9684 KB Output is correct
10 Correct 4 ms 9684 KB Output is correct
11 Correct 4 ms 9684 KB Output is correct
12 Correct 4 ms 9684 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct
14 Correct 5 ms 9684 KB Output is correct
15 Correct 4 ms 9684 KB Output is correct
16 Correct 4 ms 9684 KB Output is correct
17 Correct 6 ms 9620 KB Output is correct
18 Correct 4 ms 9684 KB Output is correct
19 Correct 4 ms 9684 KB Output is correct
20 Correct 4 ms 9724 KB Output is correct
21 Correct 6 ms 9684 KB Output is correct
22 Correct 5 ms 9684 KB Output is correct
23 Correct 4 ms 9684 KB Output is correct
24 Correct 4 ms 9684 KB Output is correct
25 Correct 5 ms 9684 KB Output is correct
26 Correct 4 ms 9684 KB Output is correct
27 Correct 4 ms 9684 KB Output is correct
28 Correct 4 ms 9684 KB Output is correct
29 Correct 5 ms 9684 KB Output is correct
30 Correct 5 ms 9684 KB Output is correct
31 Correct 6 ms 9684 KB Output is correct
32 Correct 4 ms 9684 KB Output is correct
33 Correct 5 ms 9684 KB Output is correct
34 Correct 6 ms 9812 KB Output is correct
35 Correct 58 ms 15232 KB Output is correct
36 Correct 75 ms 17472 KB Output is correct
37 Correct 75 ms 17544 KB Output is correct
38 Correct 85 ms 17296 KB Output is correct
39 Correct 6 ms 9812 KB Output is correct
40 Correct 6 ms 9832 KB Output is correct
41 Correct 6 ms 9812 KB Output is correct
42 Correct 6 ms 9788 KB Output is correct
43 Correct 6 ms 9840 KB Output is correct
44 Correct 8 ms 9812 KB Output is correct
45 Correct 5 ms 9812 KB Output is correct
46 Correct 7 ms 9812 KB Output is correct
47 Correct 6 ms 9832 KB Output is correct
48 Correct 6 ms 9860 KB Output is correct
49 Correct 10 ms 10624 KB Output is correct
50 Correct 75 ms 17600 KB Output is correct
51 Correct 9 ms 10068 KB Output is correct
52 Correct 82 ms 16268 KB Output is correct
53 Correct 9 ms 10452 KB Output is correct
54 Correct 73 ms 16908 KB Output is correct
55 Correct 8 ms 10112 KB Output is correct
56 Correct 7 ms 10124 KB Output is correct
57 Correct 9 ms 10188 KB Output is correct
58 Correct 7 ms 10196 KB Output is correct
59 Correct 7 ms 9772 KB Output is correct
60 Correct 60 ms 14712 KB Output is correct
61 Correct 6 ms 9940 KB Output is correct
62 Correct 74 ms 17176 KB Output is correct
63 Correct 290 ms 43720 KB Output is correct
64 Correct 303 ms 43720 KB Output is correct
65 Correct 321 ms 43644 KB Output is correct
66 Correct 69 ms 19184 KB Output is correct
67 Correct 108 ms 21388 KB Output is correct
68 Correct 66 ms 19140 KB Output is correct
69 Correct 161 ms 20608 KB Output is correct
70 Correct 74 ms 19104 KB Output is correct
71 Correct 77 ms 19188 KB Output is correct
72 Correct 153 ms 21632 KB Output is correct
73 Correct 143 ms 21644 KB Output is correct
74 Correct 556 ms 42296 KB Output is correct
75 Correct 244 ms 26248 KB Output is correct
76 Correct 342 ms 32672 KB Output is correct
77 Correct 318 ms 32844 KB Output is correct
78 Correct 97 ms 21624 KB Output is correct
79 Correct 182 ms 26360 KB Output is correct
80 Correct 106 ms 21540 KB Output is correct
81 Correct 186 ms 24928 KB Output is correct
82 Correct 338 ms 33416 KB Output is correct
83 Correct 311 ms 33480 KB Output is correct
84 Correct 272 ms 33304 KB Output is correct
85 Correct 326 ms 33300 KB Output is correct
86 Correct 79 ms 18416 KB Output is correct
87 Correct 84 ms 20620 KB Output is correct
88 Correct 164 ms 21896 KB Output is correct
89 Correct 368 ms 31716 KB Output is correct