oj.uz

Submission #884807

# Submission time Handle Problem Language Result Execution time Memory
884807 2023-12-08T12:57:39 Z mosaev Making Friends on Joitter is Fun (JOI20_joitter2) C++17
100 / 100
 457 ms 49740 KB 
//#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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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