Submission #170655

# Submission time Handle Problem Language Result Execution time Memory
170655 2019-12-26T02:28:52 Z arnold518 Meetings (JOI19_meetings) C++14
100 / 100
715 ms 936 KB
#include "meetings.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

int N;

mt19937 gen(time(NULL));

int rand(int l, int r)
{
	uniform_int_distribution<> dis(l, r);
	return dis(gen);
}

void answer(int a, int b)
{
	if(a>b) swap(a, b);
	Bridge(a, b);
}

void solve(vector<int> cand)
{
	if(cand.size()==1) return;
	int i, j;
	int u, v;

	u=rand(0, cand.size()-1);
	v=rand(0, cand.size()-1);
	while(u==v) v=rand(0, cand.size()-1);

	u=cand[u]; v=cand[v];

	map<int, vector<int>> M;
	vector<int> V;

	M[u].push_back(u);
	M[v].push_back(v);

	for(auto now : cand)
	{
		if(now==u || now==v) continue;
		int t=Query(u, v, now);
		M[t].push_back(now);
		if(t!=u && t!=v) V.push_back(t);
	}

	sort(V.begin(), V.end());
	V.erase(unique(V.begin(), V.end()), V.end());
	sort(V.begin(), V.end(), [&](const int &p, const int &q)
	{
		return Query(u, p, q)==p;
	});

	V.insert(V.begin(), u);
	V.push_back(v);

	for(i=1; i<V.size(); i++) answer(V[i], V[i-1]);

	for(auto it : M) solve(it.second);
}

void Solve(int _N)
{
	int i, j;
	N=_N;

	vector<int> V;
	for(i=0; i<N; i++) V.push_back(i);
	solve(V);
}

Compilation message

meetings.cpp: In function 'void solve(std::vector<int>)':
meetings.cpp:61:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(i=1; i<V.size(); i++) answer(V[i], V[i-1]);
           ~^~~~~~~~~
meetings.cpp:28:9: warning: unused variable 'j' [-Wunused-variable]
  int i, j;
         ^
meetings.cpp: In function 'void Solve(int)':
meetings.cpp:68:9: warning: unused variable 'j' [-Wunused-variable]
  int i, j;
         ^
# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 248 KB Output is correct
3 Correct 2 ms 248 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 252 KB Output is correct
8 Correct 2 ms 248 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 248 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 248 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 248 KB Output is correct
3 Correct 2 ms 248 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 252 KB Output is correct
8 Correct 2 ms 248 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 248 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 248 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 380 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 296 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 504 KB Output is correct
24 Correct 2 ms 424 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 248 KB Output is correct
3 Correct 2 ms 248 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 252 KB Output is correct
8 Correct 2 ms 248 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 248 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 248 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 380 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 296 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 504 KB Output is correct
24 Correct 2 ms 424 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 6 ms 376 KB Output is correct
28 Correct 6 ms 376 KB Output is correct
29 Correct 6 ms 376 KB Output is correct
30 Correct 6 ms 376 KB Output is correct
31 Correct 5 ms 376 KB Output is correct
32 Correct 7 ms 380 KB Output is correct
33 Correct 9 ms 376 KB Output is correct
34 Correct 11 ms 376 KB Output is correct
35 Correct 10 ms 504 KB Output is correct
36 Correct 6 ms 376 KB Output is correct
37 Correct 10 ms 504 KB Output is correct
38 Correct 12 ms 504 KB Output is correct
39 Correct 12 ms 376 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 585 ms 856 KB Output is correct
2 Correct 643 ms 936 KB Output is correct
3 Correct 509 ms 700 KB Output is correct
4 Correct 710 ms 700 KB Output is correct
5 Correct 285 ms 632 KB Output is correct
6 Correct 287 ms 760 KB Output is correct
7 Correct 431 ms 756 KB Output is correct
8 Correct 493 ms 684 KB Output is correct
9 Correct 531 ms 860 KB Output is correct
10 Correct 521 ms 756 KB Output is correct
11 Correct 491 ms 840 KB Output is correct
12 Correct 439 ms 888 KB Output is correct
13 Correct 268 ms 716 KB Output is correct
14 Correct 297 ms 632 KB Output is correct
15 Correct 310 ms 796 KB Output is correct
16 Correct 342 ms 680 KB Output is correct
17 Correct 531 ms 760 KB Output is correct
18 Correct 332 ms 760 KB Output is correct
19 Correct 331 ms 808 KB Output is correct
20 Correct 384 ms 788 KB Output is correct
21 Correct 454 ms 760 KB Output is correct
22 Correct 355 ms 676 KB Output is correct
23 Correct 337 ms 764 KB Output is correct
24 Correct 359 ms 680 KB Output is correct
25 Correct 362 ms 740 KB Output is correct
26 Correct 385 ms 680 KB Output is correct
27 Correct 371 ms 616 KB Output is correct
28 Correct 554 ms 760 KB Output is correct
29 Correct 411 ms 760 KB Output is correct
30 Correct 500 ms 784 KB Output is correct
31 Correct 434 ms 888 KB Output is correct
32 Correct 715 ms 936 KB Output is correct
33 Correct 645 ms 896 KB Output is correct
34 Correct 6 ms 376 KB Output is correct
35 Correct 6 ms 504 KB Output is correct
36 Correct 8 ms 504 KB Output is correct
37 Correct 7 ms 504 KB Output is correct
38 Correct 5 ms 376 KB Output is correct
39 Correct 7 ms 376 KB Output is correct
40 Correct 10 ms 376 KB Output is correct
41 Correct 11 ms 376 KB Output is correct
42 Correct 10 ms 376 KB Output is correct
43 Correct 6 ms 376 KB Output is correct
44 Correct 12 ms 376 KB Output is correct
45 Correct 13 ms 380 KB Output is correct
46 Correct 9 ms 504 KB Output is correct
47 Correct 2 ms 376 KB Output is correct
48 Correct 2 ms 376 KB Output is correct
49 Correct 2 ms 376 KB Output is correct
50 Correct 2 ms 376 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 2 ms 376 KB Output is correct
53 Correct 2 ms 376 KB Output is correct
54 Correct 2 ms 376 KB Output is correct
55 Correct 2 ms 376 KB Output is correct
56 Correct 2 ms 376 KB Output is correct
57 Correct 2 ms 376 KB Output is correct
58 Correct 2 ms 376 KB Output is correct
59 Correct 2 ms 376 KB Output is correct
60 Correct 2 ms 380 KB Output is correct
61 Correct 2 ms 252 KB Output is correct
62 Correct 2 ms 376 KB Output is correct
63 Correct 2 ms 376 KB Output is correct
64 Correct 2 ms 248 KB Output is correct
65 Correct 2 ms 376 KB Output is correct
66 Correct 2 ms 248 KB Output is correct
67 Correct 2 ms 248 KB Output is correct
68 Correct 2 ms 248 KB Output is correct
69 Correct 2 ms 376 KB Output is correct
70 Correct 2 ms 248 KB Output is correct
71 Correct 2 ms 376 KB Output is correct
72 Correct 2 ms 248 KB Output is correct