Submission #619104

# Submission time Handle Problem Language Result Execution time Memory
619104 2022-08-02T09:53:23 Z errorgorn Meetings (JOI19_meetings) C++17
100 / 100
554 ms 1024 KB
#include "meetings.h"

#include <bits/stdc++.h>
using namespace std;

#define int long long
#define ii pair<int,int>
#define fi first
#define se second

#define puf push_front
#define pof pop_front
#define pub push_back
#define pob pop_back
#define lb lower_bound
#define ub upper_bound

#define rep(x,s,e) for (int x=(s)-((s)>(e));x!=(e)-((s)>(e));((s)<(e))?x++:x--)
#define all(x) (x).begin(),(x).end()
#define sz(x) (int) (x).size()

mt19937 rng(chrono::system_clock::now().time_since_epoch().count());

int n;

void dnc(int l,int r,vector<int> line,vector<int> &res){
	if (line.empty()) return;
	
	int x=line[rng()%sz(line)];
	vector<int> vl,vr;
	for (auto it:line) if (it!=x){
		if (Query(l,x,it)==x) vr.pub(it);
		else vl.pub(it);
	}
	
	dnc(l,x,vl,res);
	res.pub(x);
	dnc(x,r,vr,res);
}

bool has[2005];

void solve(vector<int> idx){
	if (sz(idx)==1) return;
	if (sz(idx)==2){
		if (idx[0]>idx[1]) swap(idx[0],idx[1]);
		Bridge(idx[0],idx[1]);
		return;
	}
	
	int u,v;
	do{
		u=idx[rng()%sz(idx)];
		v=idx[rng()%sz(idx)];
	} while (u==v);
	
	map<int,vector<int> > m;
	m[u]={u},m[v]={v};
	for (auto it:idx) if (it!=u && it!=v){
		m[Query(u,v,it)].pub(it);
	}
	
	vector<int> line;
	for (auto [a,b]:m) if (a!=u && a!=v) line.pub(a);
	
	vector<int> res={u};
	dnc(u,v,line,res);
	res.pub(v);
	
	rep(x,0,sz(res)-1){
		if (res[x]<res[x+1]) Bridge(res[x],res[x+1]);
		else Bridge(res[x+1],res[x]);
	}
	
	for (auto [a,b]:m) solve(b);
}

void Solve(signed N) {
	n=N;
	
	vector<int> idx;
	rep(x,0,n) idx.pub(x);
	
	solve(idx);
}
# Verdict Execution time Memory Grader output
1 Correct 1 ms 356 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 0 ms 336 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Correct 0 ms 336 KB Output is correct
7 Correct 0 ms 336 KB Output is correct
8 Correct 0 ms 336 KB Output is correct
9 Correct 0 ms 336 KB Output is correct
10 Correct 0 ms 352 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 0 ms 336 KB Output is correct
13 Correct 0 ms 336 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 356 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 0 ms 336 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Correct 0 ms 336 KB Output is correct
7 Correct 0 ms 336 KB Output is correct
8 Correct 0 ms 336 KB Output is correct
9 Correct 0 ms 336 KB Output is correct
10 Correct 0 ms 352 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 0 ms 336 KB Output is correct
13 Correct 0 ms 336 KB Output is correct
14 Correct 0 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 0 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 356 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 0 ms 336 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Correct 0 ms 336 KB Output is correct
7 Correct 0 ms 336 KB Output is correct
8 Correct 0 ms 336 KB Output is correct
9 Correct 0 ms 336 KB Output is correct
10 Correct 0 ms 352 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 0 ms 336 KB Output is correct
13 Correct 0 ms 336 KB Output is correct
14 Correct 0 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 0 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 5 ms 336 KB Output is correct
28 Correct 4 ms 336 KB Output is correct
29 Correct 4 ms 336 KB Output is correct
30 Correct 3 ms 336 KB Output is correct
31 Correct 3 ms 336 KB Output is correct
32 Correct 4 ms 336 KB Output is correct
33 Correct 7 ms 336 KB Output is correct
34 Correct 9 ms 452 KB Output is correct
35 Correct 7 ms 336 KB Output is correct
36 Correct 5 ms 336 KB Output is correct
37 Correct 9 ms 336 KB Output is correct
38 Correct 5 ms 336 KB Output is correct
39 Correct 5 ms 348 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 273 ms 804 KB Output is correct
2 Correct 377 ms 852 KB Output is correct
3 Correct 324 ms 700 KB Output is correct
4 Correct 270 ms 672 KB Output is correct
5 Correct 295 ms 844 KB Output is correct
6 Correct 271 ms 676 KB Output is correct
7 Correct 333 ms 756 KB Output is correct
8 Correct 355 ms 856 KB Output is correct
9 Correct 363 ms 1004 KB Output is correct
10 Correct 341 ms 852 KB Output is correct
11 Correct 454 ms 836 KB Output is correct
12 Correct 241 ms 864 KB Output is correct
13 Correct 218 ms 728 KB Output is correct
14 Correct 252 ms 688 KB Output is correct
15 Correct 339 ms 660 KB Output is correct
16 Correct 324 ms 756 KB Output is correct
17 Correct 339 ms 836 KB Output is correct
18 Correct 206 ms 824 KB Output is correct
19 Correct 301 ms 724 KB Output is correct
20 Correct 343 ms 660 KB Output is correct
21 Correct 370 ms 828 KB Output is correct
22 Correct 380 ms 732 KB Output is correct
23 Correct 319 ms 700 KB Output is correct
24 Correct 346 ms 704 KB Output is correct
25 Correct 273 ms 676 KB Output is correct
26 Correct 282 ms 656 KB Output is correct
27 Correct 271 ms 696 KB Output is correct
28 Correct 392 ms 756 KB Output is correct
29 Correct 358 ms 856 KB Output is correct
30 Correct 366 ms 708 KB Output is correct
31 Correct 360 ms 940 KB Output is correct
32 Correct 554 ms 912 KB Output is correct
33 Correct 520 ms 1024 KB Output is correct
34 Correct 5 ms 336 KB Output is correct
35 Correct 4 ms 336 KB Output is correct
36 Correct 4 ms 336 KB Output is correct
37 Correct 3 ms 336 KB Output is correct
38 Correct 3 ms 336 KB Output is correct
39 Correct 5 ms 336 KB Output is correct
40 Correct 6 ms 336 KB Output is correct
41 Correct 9 ms 336 KB Output is correct
42 Correct 8 ms 336 KB Output is correct
43 Correct 3 ms 336 KB Output is correct
44 Correct 7 ms 336 KB Output is correct
45 Correct 8 ms 432 KB Output is correct
46 Correct 6 ms 336 KB Output is correct
47 Correct 1 ms 336 KB Output is correct
48 Correct 1 ms 336 KB Output is correct
49 Correct 1 ms 336 KB Output is correct
50 Correct 0 ms 336 KB Output is correct
51 Correct 1 ms 336 KB Output is correct
52 Correct 1 ms 336 KB Output is correct
53 Correct 1 ms 336 KB Output is correct
54 Correct 1 ms 336 KB Output is correct
55 Correct 1 ms 336 KB Output is correct
56 Correct 1 ms 336 KB Output is correct
57 Correct 1 ms 336 KB Output is correct
58 Correct 1 ms 336 KB Output is correct
59 Correct 1 ms 336 KB Output is correct
60 Correct 1 ms 336 KB Output is correct
61 Correct 1 ms 336 KB Output is correct
62 Correct 0 ms 336 KB Output is correct
63 Correct 1 ms 336 KB Output is correct
64 Correct 0 ms 336 KB Output is correct
65 Correct 0 ms 336 KB Output is correct
66 Correct 0 ms 336 KB Output is correct
67 Correct 1 ms 336 KB Output is correct
68 Correct 0 ms 336 KB Output is correct
69 Correct 0 ms 336 KB Output is correct
70 Correct 1 ms 336 KB Output is correct
71 Correct 0 ms 336 KB Output is correct
72 Correct 0 ms 336 KB Output is correct