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답안 #269258

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
269258 2020-08-17T05:58:01 Z 최은수(#5097) 조이터에서 친구를 만드는건 재밌어 (JOI20_joitter2) C++17
100 / 100
 1348 ms 89520 KB 
#include<iostream>
#include<vector>
#include<set>
#include<map>
#include<algorithm>
#define ep emplace
#define eb emplace_back
#define fi first
#define se second
#define all(x) (x).begin(),(x).end()
using namespace std;
typedef long long ll;
typedef pair<int,int>pi;
typedef pair<ll,ll>pl;
const int inf=1e9+7;
const ll INF=1e18;
int par[100010];
vector<int>gv[100010];
int sz[100010];
set<int>rev[100010];
map<int,int>cnt[100010];
ll ans;
vector<pi>univ;
inline void uni(int x,int y)
{
    if(sz[x]>sz[y])
        swap(x,y);
    vector<int>putv;
    ans-=(ll)cnt[x][y]*sz[y]+(ll)cnt[y][x]*sz[x];
    ans+=(ll)sz[x]*sz[y]*2;
    ans+=sz[x]*((ll)rev[y].size()-cnt[x][y]-cnt[y][y]);
    for(int t:rev[x])
    {
        if(par[t]==x||par[t]==y)
            continue;
        if(rev[y].find(t)==rev[y].end())
            putv.eb(t);
        else
            ans-=sz[x];
    }
    for(int&t:putv)
    {
        rev[y].ep(t);
        if(cnt[y][par[t]]>0)
            univ.eb(y,par[t]);
        cnt[par[t]][y]++;
        ans+=sz[y];
    }
    for(pi t:cnt[x])
    {
        if(t.fi==par[t.fi]&&t.se>0&&cnt[t.fi][y]>0)
            univ.eb(y,t.fi);
        if(t.fi==par[t.fi])
            cnt[y][t.fi]+=t.se;
    }
    sz[y]+=sz[x];
    for(int&t:gv[x])
        par[t]=y,gv[y].eb(t);
    gv[x].clear();
    return;
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n,m;
    cin>>n>>m;
    for(int i=0;i++<n;)
        gv[par[i]=i].eb(i),sz[i]=1;
    for(int i=0;i<m;i++)
    {
        int u,v;
        cin>>u>>v;
        if(par[u]!=par[v]&&rev[par[v]].find(u)==rev[par[v]].end())
        {
            ans+=sz[par[v]];
            rev[par[v]].ep(u);
            cnt[par[u]][par[v]]++;
            if(cnt[par[v]][par[u]]>0)
            {
                univ.eb(u,v);
                while(!univ.empty())
                {
                    pi t=univ.back();
                    univ.pop_back();
                    if(par[t.fi]!=par[t.se])
                        uni(par[t.fi],par[t.se]);
                }
            }
        }
        cout<<ans<<'\n';
    }
    cout.flush();
    return 0;
}

Subtask #1
1.0 / 1.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 12032 KB Output is correct
2 Correct 9 ms 12160 KB Output is correct
3 Correct 8 ms 12032 KB Output is correct
4 Correct 9 ms 12032 KB Output is correct
5 Correct 9 ms 12032 KB Output is correct
6 Correct 9 ms 12032 KB Output is correct
7 Correct 10 ms 12160 KB Output is correct
8 Correct 9 ms 12160 KB Output is correct
9 Correct 10 ms 12160 KB Output is correct
10 Correct 8 ms 12032 KB Output is correct
11 Correct 8 ms 12032 KB Output is correct
12 Correct 9 ms 12032 KB Output is correct
13 Correct 8 ms 12032 KB Output is correct
14 Correct 8 ms 12032 KB Output is correct
15 Correct 10 ms 12032 KB Output is correct
16 Correct 8 ms 12032 KB Output is correct
17 Correct 8 ms 12032 KB Output is correct
18 Correct 8 ms 12136 KB Output is correct
19 Correct 8 ms 12160 KB Output is correct
20 Correct 8 ms 12160 KB Output is correct
21 Correct 9 ms 12160 KB Output is correct
22 Correct 8 ms 12160 KB Output is correct
23 Correct 9 ms 12160 KB Output is correct
24 Correct 9 ms 12160 KB Output is correct
25 Correct 9 ms 12160 KB Output is correct
26 Correct 8 ms 12160 KB Output is correct
27 Correct 9 ms 12032 KB Output is correct
28 Correct 8 ms 12160 KB Output is correct
29 Correct 9 ms 12160 KB Output is correct
30 Correct 8 ms 12032 KB Output is correct
31 Correct 9 ms 12160 KB Output is correct
32 Correct 9 ms 12032 KB Output is correct
33 Correct 10 ms 12160 KB Output is correct

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 12032 KB Output is correct
2 Correct 9 ms 12160 KB Output is correct
3 Correct 8 ms 12032 KB Output is correct
4 Correct 9 ms 12032 KB Output is correct
5 Correct 9 ms 12032 KB Output is correct
6 Correct 9 ms 12032 KB Output is correct
7 Correct 10 ms 12160 KB Output is correct
8 Correct 9 ms 12160 KB Output is correct
9 Correct 10 ms 12160 KB Output is correct
10 Correct 8 ms 12032 KB Output is correct
11 Correct 8 ms 12032 KB Output is correct
12 Correct 9 ms 12032 KB Output is correct
13 Correct 8 ms 12032 KB Output is correct
14 Correct 8 ms 12032 KB Output is correct
15 Correct 10 ms 12032 KB Output is correct
16 Correct 8 ms 12032 KB Output is correct
17 Correct 8 ms 12032 KB Output is correct
18 Correct 8 ms 12136 KB Output is correct
19 Correct 8 ms 12160 KB Output is correct
20 Correct 8 ms 12160 KB Output is correct
21 Correct 9 ms 12160 KB Output is correct
22 Correct 8 ms 12160 KB Output is correct
23 Correct 9 ms 12160 KB Output is correct
24 Correct 9 ms 12160 KB Output is correct
25 Correct 9 ms 12160 KB Output is correct
26 Correct 8 ms 12160 KB Output is correct
27 Correct 9 ms 12032 KB Output is correct
28 Correct 8 ms 12160 KB Output is correct
29 Correct 9 ms 12160 KB Output is correct
30 Correct 8 ms 12032 KB Output is correct
31 Correct 9 ms 12160 KB Output is correct
32 Correct 9 ms 12032 KB Output is correct
33 Correct 10 ms 12160 KB Output is correct
34 Correct 12 ms 12196 KB Output is correct
35 Correct 93 ms 18136 KB Output is correct
36 Correct 121 ms 21112 KB Output is correct
37 Correct 127 ms 21112 KB Output is correct
38 Correct 116 ms 20728 KB Output is correct
39 Correct 12 ms 12672 KB Output is correct
40 Correct 15 ms 12928 KB Output is correct
41 Correct 15 ms 12928 KB Output is correct
42 Correct 13 ms 12672 KB Output is correct
43 Correct 12 ms 12672 KB Output is correct
44 Correct 14 ms 12672 KB Output is correct
45 Correct 15 ms 12672 KB Output is correct
46 Correct 14 ms 12672 KB Output is correct
47 Correct 16 ms 12800 KB Output is correct
48 Correct 14 ms 12800 KB Output is correct
49 Correct 22 ms 13800 KB Output is correct
50 Correct 146 ms 21384 KB Output is correct
51 Correct 20 ms 13056 KB Output is correct
52 Correct 130 ms 19576 KB Output is correct
53 Correct 26 ms 13688 KB Output is correct
54 Correct 125 ms 20284 KB Output is correct
55 Correct 20 ms 13032 KB Output is correct
56 Correct 15 ms 13088 KB Output is correct
57 Correct 14 ms 13056 KB Output is correct
58 Correct 17 ms 13056 KB Output is correct
59 Correct 12 ms 12780 KB Output is correct
60 Correct 108 ms 17828 KB Output is correct
61 Correct 18 ms 12928 KB Output is correct
62 Correct 129 ms 20604 KB Output is correct

Subtask #3
83.0 / 83.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 12032 KB Output is correct
2 Correct 9 ms 12160 KB Output is correct
3 Correct 8 ms 12032 KB Output is correct
4 Correct 9 ms 12032 KB Output is correct
5 Correct 9 ms 12032 KB Output is correct
6 Correct 9 ms 12032 KB Output is correct
7 Correct 10 ms 12160 KB Output is correct
8 Correct 9 ms 12160 KB Output is correct
9 Correct 10 ms 12160 KB Output is correct
10 Correct 8 ms 12032 KB Output is correct
11 Correct 8 ms 12032 KB Output is correct
12 Correct 9 ms 12032 KB Output is correct
13 Correct 8 ms 12032 KB Output is correct
14 Correct 8 ms 12032 KB Output is correct
15 Correct 10 ms 12032 KB Output is correct
16 Correct 8 ms 12032 KB Output is correct
17 Correct 8 ms 12032 KB Output is correct
18 Correct 8 ms 12136 KB Output is correct
19 Correct 8 ms 12160 KB Output is correct
20 Correct 8 ms 12160 KB Output is correct
21 Correct 9 ms 12160 KB Output is correct
22 Correct 8 ms 12160 KB Output is correct
23 Correct 9 ms 12160 KB Output is correct
24 Correct 9 ms 12160 KB Output is correct
25 Correct 9 ms 12160 KB Output is correct
26 Correct 8 ms 12160 KB Output is correct
27 Correct 9 ms 12032 KB Output is correct
28 Correct 8 ms 12160 KB Output is correct
29 Correct 9 ms 12160 KB Output is correct
30 Correct 8 ms 12032 KB Output is correct
31 Correct 9 ms 12160 KB Output is correct
32 Correct 9 ms 12032 KB Output is correct
33 Correct 10 ms 12160 KB Output is correct
34 Correct 12 ms 12196 KB Output is correct
35 Correct 93 ms 18136 KB Output is correct
36 Correct 121 ms 21112 KB Output is correct
37 Correct 127 ms 21112 KB Output is correct
38 Correct 116 ms 20728 KB Output is correct
39 Correct 12 ms 12672 KB Output is correct
40 Correct 15 ms 12928 KB Output is correct
41 Correct 15 ms 12928 KB Output is correct
42 Correct 13 ms 12672 KB Output is correct
43 Correct 12 ms 12672 KB Output is correct
44 Correct 14 ms 12672 KB Output is correct
45 Correct 15 ms 12672 KB Output is correct
46 Correct 14 ms 12672 KB Output is correct
47 Correct 16 ms 12800 KB Output is correct
48 Correct 14 ms 12800 KB Output is correct
49 Correct 22 ms 13800 KB Output is correct
50 Correct 146 ms 21384 KB Output is correct
51 Correct 20 ms 13056 KB Output is correct
52 Correct 130 ms 19576 KB Output is correct
53 Correct 26 ms 13688 KB Output is correct
54 Correct 125 ms 20284 KB Output is correct
55 Correct 20 ms 13032 KB Output is correct
56 Correct 15 ms 13088 KB Output is correct
57 Correct 14 ms 13056 KB Output is correct
58 Correct 17 ms 13056 KB Output is correct
59 Correct 12 ms 12780 KB Output is correct
60 Correct 108 ms 17828 KB Output is correct
61 Correct 18 ms 12928 KB Output is correct
62 Correct 129 ms 20604 KB Output is correct
63 Correct 590 ms 63736 KB Output is correct
64 Correct 589 ms 63664 KB Output is correct
65 Correct 585 ms 63864 KB Output is correct
66 Correct 385 ms 39664 KB Output is correct
67 Correct 582 ms 52720 KB Output is correct
68 Correct 398 ms 39664 KB Output is correct
69 Correct 502 ms 39760 KB Output is correct
70 Correct 408 ms 39660 KB Output is correct
71 Correct 369 ms 39704 KB Output is correct
72 Correct 603 ms 50552 KB Output is correct
73 Correct 724 ms 50888 KB Output is correct
74 Correct 1348 ms 89520 KB Output is correct
75 Correct 735 ms 48112 KB Output is correct
76 Correct 965 ms 68016 KB Output is correct
77 Correct 968 ms 68204 KB Output is correct
78 Correct 373 ms 44408 KB Output is correct
79 Correct 610 ms 52720 KB Output is correct
80 Correct 426 ms 45480 KB Output is correct
81 Correct 576 ms 52320 KB Output is correct
82 Correct 810 ms 62580 KB Output is correct
83 Correct 1038 ms 62484 KB Output is correct
84 Correct 871 ms 62384 KB Output is correct
85 Correct 706 ms 62448 KB Output is correct
86 Correct 367 ms 45704 KB Output is correct
87 Correct 379 ms 47728 KB Output is correct
88 Correct 636 ms 51444 KB Output is correct
89 Correct 885 ms 66176 KB Output is correct