답안 #884807

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
884807	2023-12-08T12:57:39 Z	mosaev	조이터에서 친구를 만드는건 재밌어 (JOI20_joitter2)	C++17	100 / 100	457 ms	49740 KB

joitter2

//#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("sse4")
#include <complex>
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ld long double
#define N ((ll)5e5+5)
#define M ((ll)1e9+7)
#define fi first
#define se second
#define bs (0b10000000000000000000)
#define inf ((ll)1e16)
struct dsu{
	queue<pair<ll, ll>> e;
	vector<ll> p, sz;
	ll ans;
	vector<set<ll>> in;
	vector<set<pair<ll, ll>>> out;
	void init(ll lsz) {p.resize(lsz+5), sz.resize(lsz+5), in.resize(lsz+5), out.resize(lsz+5);for(int i=1; i<=lsz; i++) p[i] = i, sz[i] = 1;}
	ll gpar(ll x) {return x==p[x] ? p[x]:p[x] = gpar(p[x]);}
	void merge(ll x, ll y){
		x=gpar(x), y=gpar(y);if(sz[x] < sz[y]) swap(x, y);
		for(auto z:out[y]){
			ans -= sz[z.fi];in[z.fi].erase(z.se);
			e.push({z.se, z.fi});
		}
		ans += sz[y]*sz[x]*2;
		ans += sz[y]*in[x].size();
		ll wef;
		for(auto z:in[y]){
			wef = gpar(z);out[wef].erase({y, z});ans-=sz[y];e.push({z, y});
		}
		in[y].clear(), out[y].clear();
		sz[x] += sz[y], p[y] = x;
	}
	ll add(ll x, ll y){
		e.push({x, y});while(e.size()){
			x=e.front().fi, y=e.front().se, e.pop();ll rx = gpar(x), ry = gpar(y);
			if(rx == ry || in[ry].find(x) != in[ry].end()) continue;
			auto f = out[ry].lower_bound({rx, 0});
			if(f==out[ry].end() || f->fi!=rx){
				ans += sz[ry];out[rx].insert({ry, x});in[ry].insert({x});
			}else{
				merge(rx, ry);
			}
		}
		return ans;
	}
};
ll n, m;
dsu ds;
int32_t main() {
#define int ll
	ios_base::sync_with_stdio(false), cin.tie(0), cout.tie(0);
	ll a, b;cin >> n >> m;ds.init(n);
	for(int i=1; i<=m; i++) cin >> a >> b, cout << ds.add(a, b) << '\n';
}

Subtask #1
1.0 / 1.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	452 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	456 KB	Output is correct
7	Correct	1 ms	344 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	1 ms	344 KB	Output is correct
10	Correct	0 ms	344 KB	Output is correct
11	Correct	0 ms	452 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	448 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	344 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	0 ms	348 KB	Output is correct
29	Correct	0 ms	348 KB	Output is correct
30	Correct	0 ms	348 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	0 ms	348 KB	Output is correct
33	Correct	1 ms	348 KB	Output is correct

Subtask #2
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	452 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	456 KB	Output is correct
7	Correct	1 ms	344 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	1 ms	344 KB	Output is correct
10	Correct	0 ms	344 KB	Output is correct
11	Correct	0 ms	452 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	448 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	344 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	0 ms	348 KB	Output is correct
29	Correct	0 ms	348 KB	Output is correct
30	Correct	0 ms	348 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	0 ms	348 KB	Output is correct
33	Correct	1 ms	348 KB	Output is correct
34	Correct	3 ms	600 KB	Output is correct
35	Correct	64 ms	6228 KB	Output is correct
36	Correct	72 ms	8276 KB	Output is correct
37	Correct	74 ms	8276 KB	Output is correct
38	Correct	79 ms	8268 KB	Output is correct
39	Correct	2 ms	756 KB	Output is correct
40	Correct	2 ms	604 KB	Output is correct
41	Correct	2 ms	604 KB	Output is correct
42	Correct	1 ms	604 KB	Output is correct
43	Correct	2 ms	604 KB	Output is correct
44	Correct	2 ms	600 KB	Output is correct
45	Correct	1 ms	604 KB	Output is correct
46	Correct	1 ms	736 KB	Output is correct
47	Correct	2 ms	836 KB	Output is correct
48	Correct	2 ms	604 KB	Output is correct
49	Correct	6 ms	1368 KB	Output is correct
50	Correct	78 ms	8532 KB	Output is correct
51	Correct	4 ms	860 KB	Output is correct
52	Correct	66 ms	7008 KB	Output is correct
53	Correct	6 ms	1112 KB	Output is correct
54	Correct	68 ms	7544 KB	Output is correct
55	Correct	5 ms	1176 KB	Output is correct
56	Correct	4 ms	1116 KB	Output is correct
57	Correct	3 ms	1116 KB	Output is correct
58	Correct	5 ms	912 KB	Output is correct
59	Correct	2 ms	604 KB	Output is correct
60	Correct	60 ms	5660 KB	Output is correct
61	Correct	3 ms	860 KB	Output is correct
62	Correct	70 ms	8028 KB	Output is correct

Subtask #3
83.0 / 83.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	452 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	456 KB	Output is correct
7	Correct	1 ms	344 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	1 ms	344 KB	Output is correct
10	Correct	0 ms	344 KB	Output is correct
11	Correct	0 ms	452 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	448 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	344 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	0 ms	348 KB	Output is correct
29	Correct	0 ms	348 KB	Output is correct
30	Correct	0 ms	348 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	0 ms	348 KB	Output is correct
33	Correct	1 ms	348 KB	Output is correct
34	Correct	3 ms	600 KB	Output is correct
35	Correct	64 ms	6228 KB	Output is correct
36	Correct	72 ms	8276 KB	Output is correct
37	Correct	74 ms	8276 KB	Output is correct
38	Correct	79 ms	8268 KB	Output is correct
39	Correct	2 ms	756 KB	Output is correct
40	Correct	2 ms	604 KB	Output is correct
41	Correct	2 ms	604 KB	Output is correct
42	Correct	1 ms	604 KB	Output is correct
43	Correct	2 ms	604 KB	Output is correct
44	Correct	2 ms	600 KB	Output is correct
45	Correct	1 ms	604 KB	Output is correct
46	Correct	1 ms	736 KB	Output is correct
47	Correct	2 ms	836 KB	Output is correct
48	Correct	2 ms	604 KB	Output is correct
49	Correct	6 ms	1368 KB	Output is correct
50	Correct	78 ms	8532 KB	Output is correct
51	Correct	4 ms	860 KB	Output is correct
52	Correct	66 ms	7008 KB	Output is correct
53	Correct	6 ms	1112 KB	Output is correct
54	Correct	68 ms	7544 KB	Output is correct
55	Correct	5 ms	1176 KB	Output is correct
56	Correct	4 ms	1116 KB	Output is correct
57	Correct	3 ms	1116 KB	Output is correct
58	Correct	5 ms	912 KB	Output is correct
59	Correct	2 ms	604 KB	Output is correct
60	Correct	60 ms	5660 KB	Output is correct
61	Correct	3 ms	860 KB	Output is correct
62	Correct	70 ms	8028 KB	Output is correct
63	Correct	289 ms	49740 KB	Output is correct
64	Correct	266 ms	49700 KB	Output is correct
65	Correct	275 ms	49680 KB	Output is correct
66	Correct	67 ms	15988 KB	Output is correct
67	Correct	102 ms	20460 KB	Output is correct
68	Correct	64 ms	15700 KB	Output is correct
69	Correct	146 ms	21208 KB	Output is correct
70	Correct	77 ms	15700 KB	Output is correct
71	Correct	64 ms	15704 KB	Output is correct
72	Correct	150 ms	20500 KB	Output is correct
73	Correct	117 ms	20480 KB	Output is correct
74	Correct	457 ms	30044 KB	Output is correct
75	Correct	213 ms	26236 KB	Output is correct
76	Correct	284 ms	29680 KB	Output is correct
77	Correct	280 ms	29760 KB	Output is correct
78	Correct	81 ms	20048 KB	Output is correct
79	Correct	156 ms	23816 KB	Output is correct
80	Correct	90 ms	20048 KB	Output is correct
81	Correct	155 ms	23336 KB	Output is correct
82	Correct	381 ms	37336 KB	Output is correct
83	Correct	330 ms	37200 KB	Output is correct
84	Correct	281 ms	36928 KB	Output is correct
85	Correct	259 ms	36936 KB	Output is correct
86	Correct	87 ms	14888 KB	Output is correct
87	Correct	101 ms	17204 KB	Output is correct
88	Correct	128 ms	20500 KB	Output is correct
89	Correct	315 ms	29268 KB	Output is correct

답안 #884807

Compilation message

Subtask #1 1.0 / 1.0

Subtask #2 16.0 / 16.0

Subtask #3 83.0 / 83.0

Subtask #1
1.0 / 1.0

Subtask #2
16.0 / 16.0

Subtask #3
83.0 / 83.0