oj.uz

Submission #126850

# Submission time Handle Problem Language Result Execution time Memory
126850 2019-07-08T14:04:42 Z mohammedehab2002 Meetings (JOI19_meetings) C++14
100 / 100
 1460 ms 3124 KB 
#include "meetings.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> ans[2005];
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int lca(int u,int v)
{
	if (!u || !v)
	return 0;
	if (u==v)
	return u;
	return Query(0,u,v);
}
bool cmp(int u,int v)
{
	return (lca(u,v)==u);
}
void solve(vector<int> v)
{
	if (v.size()==1)
	return;
	vector<int> l[2005],anc;
	int node=v[uniform_int_distribution<int>(0,v.size()-1)(rng)];
	for (int u:v)
	{
		int tmp=lca(u,node);
		if (tmp==u)
		anc.push_back(u);
		l[tmp].push_back(u);
	}
	sort(anc.begin(),anc.end(),cmp);
	for (int i=0;i<anc.size()-1;i++)
	ans[anc[i]].push_back(anc[i+1]);
	for (int u:anc)
	solve(l[u]);
}
void Solve(int n)
{
	vector<int> v;
	for (int i=0;i<n;i++)
	v.push_back(i);
	solve(v);
	for (int i=0;i<n;i++)
	{
		for (int u:ans[i])
		Bridge(min(i,u),max(i,u));
	}
}

Compilation message

meetings.cpp: In function 'void solve(std::vector<int>)':
meetings.cpp:32:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i=0;i<anc.size()-1;i++)
               ~^~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 632 KB Output is correct
2 Correct 2 ms 760 KB Output is correct
3 Correct 2 ms 504 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 2 ms 632 KB Output is correct
6 Correct 2 ms 508 KB Output is correct
7 Correct 2 ms 760 KB Output is correct
8 Correct 2 ms 632 KB Output is correct
9 Correct 2 ms 636 KB Output is correct
10 Correct 2 ms 632 KB Output is correct
11 Correct 2 ms 760 KB Output is correct
12 Correct 2 ms 632 KB Output is correct
13 Correct 2 ms 504 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 632 KB Output is correct
2 Correct 2 ms 760 KB Output is correct
3 Correct 2 ms 504 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 2 ms 632 KB Output is correct
6 Correct 2 ms 508 KB Output is correct
7 Correct 2 ms 760 KB Output is correct
8 Correct 2 ms 632 KB Output is correct
9 Correct 2 ms 636 KB Output is correct
10 Correct 2 ms 632 KB Output is correct
11 Correct 2 ms 760 KB Output is correct
12 Correct 2 ms 632 KB Output is correct
13 Correct 2 ms 504 KB Output is correct
14 Correct 3 ms 760 KB Output is correct
15 Correct 3 ms 1016 KB Output is correct
16 Correct 3 ms 760 KB Output is correct
17 Correct 3 ms 760 KB Output is correct
18 Correct 3 ms 760 KB Output is correct
19 Correct 3 ms 1016 KB Output is correct
20 Correct 3 ms 1272 KB Output is correct
21 Correct 3 ms 1400 KB Output is correct
22 Correct 3 ms 1656 KB Output is correct
23 Correct 3 ms 1016 KB Output is correct
24 Correct 2 ms 632 KB Output is correct
25 Correct 2 ms 508 KB Output is correct
26 Correct 2 ms 504 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 632 KB Output is correct
2 Correct 2 ms 760 KB Output is correct
3 Correct 2 ms 504 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 2 ms 632 KB Output is correct
6 Correct 2 ms 508 KB Output is correct
7 Correct 2 ms 760 KB Output is correct
8 Correct 2 ms 632 KB Output is correct
9 Correct 2 ms 636 KB Output is correct
10 Correct 2 ms 632 KB Output is correct
11 Correct 2 ms 760 KB Output is correct
12 Correct 2 ms 632 KB Output is correct
13 Correct 2 ms 504 KB Output is correct
14 Correct 3 ms 760 KB Output is correct
15 Correct 3 ms 1016 KB Output is correct
16 Correct 3 ms 760 KB Output is correct
17 Correct 3 ms 760 KB Output is correct
18 Correct 3 ms 760 KB Output is correct
19 Correct 3 ms 1016 KB Output is correct
20 Correct 3 ms 1272 KB Output is correct
21 Correct 3 ms 1400 KB Output is correct
22 Correct 3 ms 1656 KB Output is correct
23 Correct 3 ms 1016 KB Output is correct
24 Correct 2 ms 632 KB Output is correct
25 Correct 2 ms 508 KB Output is correct
26 Correct 2 ms 504 KB Output is correct
27 Correct 11 ms 1144 KB Output is correct
28 Correct 12 ms 1192 KB Output is correct
29 Correct 12 ms 1144 KB Output is correct
30 Correct 12 ms 1272 KB Output is correct
31 Correct 10 ms 1016 KB Output is correct
32 Correct 14 ms 1400 KB Output is correct
33 Correct 19 ms 2168 KB Output is correct
34 Correct 23 ms 2552 KB Output is correct
35 Correct 22 ms 2040 KB Output is correct
36 Correct 9 ms 1016 KB Output is correct
37 Correct 15 ms 888 KB Output is correct
38 Correct 16 ms 1144 KB Output is correct
39 Correct 14 ms 888 KB Output is correct

Subtask #4
71.0 / 71.0

# Verdict Execution time Memory Grader output
1 Correct 931 ms 1752 KB Output is correct
2 Correct 1004 ms 2052 KB Output is correct
3 Correct 945 ms 1912 KB Output is correct
4 Correct 921 ms 1740 KB Output is correct
5 Correct 506 ms 1656 KB Output is correct
6 Correct 540 ms 1784 KB Output is correct
7 Correct 796 ms 2244 KB Output is correct
8 Correct 883 ms 2652 KB Output is correct
9 Correct 989 ms 2680 KB Output is correct
10 Correct 989 ms 2640 KB Output is correct
11 Correct 1179 ms 2948 KB Output is correct
12 Correct 666 ms 1400 KB Output is correct
13 Correct 482 ms 1452 KB Output is correct
14 Correct 750 ms 2352 KB Output is correct
15 Correct 596 ms 2128 KB Output is correct
16 Correct 701 ms 2040 KB Output is correct
17 Correct 1018 ms 3124 KB Output is correct
18 Correct 604 ms 2168 KB Output is correct
19 Correct 621 ms 2048 KB Output is correct
20 Correct 785 ms 2168 KB Output is correct
21 Correct 750 ms 2220 KB Output is correct
22 Correct 782 ms 2088 KB Output is correct
23 Correct 737 ms 2232 KB Output is correct
24 Correct 684 ms 2040 KB Output is correct
25 Correct 815 ms 2240 KB Output is correct
26 Correct 708 ms 2088 KB Output is correct
27 Correct 715 ms 2216 KB Output is correct
28 Correct 1061 ms 2760 KB Output is correct
29 Correct 1045 ms 2900 KB Output is correct
30 Correct 1045 ms 2968 KB Output is correct
31 Correct 1053 ms 2808 KB Output is correct
32 Correct 1460 ms 1264 KB Output is correct
33 Correct 1098 ms 1260 KB Output is correct
34 Correct 11 ms 1144 KB Output is correct
35 Correct 10 ms 1272 KB Output is correct
36 Correct 12 ms 1388 KB Output is correct
37 Correct 11 ms 1272 KB Output is correct
38 Correct 10 ms 1144 KB Output is correct
39 Correct 14 ms 1528 KB Output is correct
40 Correct 19 ms 2016 KB Output is correct
41 Correct 22 ms 2040 KB Output is correct
42 Correct 22 ms 2296 KB Output is correct
43 Correct 10 ms 1148 KB Output is correct
44 Correct 15 ms 1148 KB Output is correct
45 Correct 17 ms 760 KB Output is correct
46 Correct 12 ms 636 KB Output is correct
47 Correct 3 ms 1016 KB Output is correct
48 Correct 3 ms 888 KB Output is correct
49 Correct 3 ms 1016 KB Output is correct
50 Correct 3 ms 888 KB Output is correct
51 Correct 3 ms 1016 KB Output is correct
52 Correct 3 ms 1144 KB Output is correct
53 Correct 4 ms 1528 KB Output is correct
54 Correct 4 ms 1400 KB Output is correct
55 Correct 4 ms 1400 KB Output is correct
56 Correct 3 ms 760 KB Output is correct
57 Correct 3 ms 632 KB Output is correct
58 Correct 2 ms 504 KB Output is correct
59 Correct 2 ms 760 KB Output is correct
60 Correct 2 ms 632 KB Output is correct
61 Correct 2 ms 504 KB Output is correct
62 Correct 3 ms 632 KB Output is correct
63 Correct 2 ms 504 KB Output is correct
64 Correct 2 ms 632 KB Output is correct
65 Correct 2 ms 760 KB Output is correct
66 Correct 2 ms 632 KB Output is correct
67 Correct 2 ms 632 KB Output is correct
68 Correct 2 ms 504 KB Output is correct
69 Correct 2 ms 632 KB Output is correct
70 Correct 2 ms 760 KB Output is correct
71 Correct 2 ms 632 KB Output is correct
72 Correct 2 ms 376 KB Output is correct