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Submission #1069827

# Submission time Handle Problem Language Result Execution time Memory
1069827 2024-08-22T09:15:43 Z Muhammad_Aneeq Longest Trip (IOI23_longesttrip) C++17
40 / 100
 921 ms 1408 KB 
#include <vector>
#include <set>
#include "longesttrip.h"
using namespace std;
int const MAXN=256;
vector<int>nei[MAXN]={};
vector<int>ans;
vector<int>cur;
bool vis[MAXN]={};
void dfs(int u,int p=-1)
{
	vis[u]=1;
	cur.push_back(u);
	bool w=0;
	for (auto i:nei[u])
	{
		if (vis[i])
			continue;
		w=1;
		dfs(i,u);
	}
	if (cur.size()>ans.size())
		ans=cur;
	cur.pop_back();
}
vector<int> sol(int N)
{
	vector<int>ans;
	for (int i=0;i<N;i++)
	{
		int q=i;
		vector<int>cur;
		while(!vis[q])
		{
			vis[q]=1;
			cur.push_back(q);
			for (auto i:nei[q])
			{
				if (!vis[i])
				{
					q=i;
					break;
				}
			}
		}
		if (cur.size()>ans.size())
			ans=cur;
	}
	return ans;
}
vector<int> longest_trip(int N, int D)
{
	ans={};
	cur={};
	for (int i=0;i<N;i++)
		nei[i]={},vis[i]=0;
	for (int i=0;i<N;i++)
		for (int j=i+1;j<N;j++)
			if (are_connected({i},{j}))
				nei[i].push_back(j),nei[j].push_back(i);
	if (D==1)
	{
		return sol(N);
	}
	for (int i=0;i<N;i++)
	{
		for (int j=0;j<N;j++)
			vis[j]=0;
		dfs(i);
	}
	return ans;
}

Compilation message

longesttrip.cpp: In function 'void dfs(int, int)':
longesttrip.cpp:14:7: warning: variable 'w' set but not used [-Wunused-but-set-variable]
   14 |  bool w=0;
      |       ^

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 207 ms 1080 KB Output is correct

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 344 KB Output is correct
2 Correct 45 ms 344 KB Output is correct
3 Correct 154 ms 344 KB Output is correct
4 Correct 379 ms 700 KB Output is correct
5 Correct 853 ms 1236 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 344 KB Output is correct
2 Correct 19 ms 344 KB Output is correct
3 Correct 146 ms 600 KB Output is correct
4 Correct 445 ms 696 KB Output is correct
5 Correct 921 ms 876 KB Output is correct
6 Correct 7 ms 344 KB Output is correct
7 Correct 22 ms 344 KB Output is correct
8 Correct 152 ms 344 KB Output is correct
9 Correct 298 ms 344 KB Output is correct
10 Correct 899 ms 1056 KB Output is correct
11 Correct 883 ms 728 KB Output is correct
12 Correct 871 ms 828 KB Output is correct
13 Correct 896 ms 1320 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 596 KB Output is correct
2 Correct 22 ms 344 KB Output is correct
3 Correct 144 ms 344 KB Output is correct
4 Correct 415 ms 344 KB Output is correct
5 Correct 825 ms 1356 KB Output is correct
6 Correct 6 ms 344 KB Output is correct
7 Correct 21 ms 344 KB Output is correct
8 Correct 137 ms 344 KB Output is correct
9 Correct 282 ms 592 KB Output is correct
10 Correct 849 ms 780 KB Output is correct
11 Correct 826 ms 988 KB Output is correct
12 Correct 828 ms 768 KB Output is correct
13 Correct 826 ms 856 KB Output is correct
14 Correct 6 ms 344 KB Output is correct
15 Correct 10 ms 344 KB Output is correct
16 Correct 32 ms 344 KB Output is correct
17 Correct 101 ms 344 KB Output is correct
18 Correct 148 ms 344 KB Output is correct
19 Correct 313 ms 680 KB Output is correct
20 Correct 293 ms 448 KB Output is correct
21 Correct 798 ms 984 KB Output is correct
22 Correct 817 ms 1136 KB Output is correct
23 Correct 861 ms 952 KB Output is correct
24 Correct 825 ms 1136 KB Output is correct
25 Correct 7 ms 344 KB Output is correct
26 Correct 8 ms 344 KB Output is correct
27 Correct 34 ms 344 KB Output is correct
28 Correct 20 ms 344 KB Output is correct
29 Correct 29 ms 596 KB Output is correct
30 Correct 209 ms 344 KB Output is correct
31 Correct 207 ms 340 KB Output is correct
32 Correct 209 ms 344 KB Output is correct
33 Correct 285 ms 600 KB Output is correct
34 Correct 320 ms 340 KB Output is correct
35 Correct 330 ms 468 KB Output is correct
36 Correct 749 ms 852 KB Output is correct
37 Correct 817 ms 684 KB Output is correct
38 Correct 890 ms 992 KB Output is correct
39 Correct 809 ms 944 KB Output is correct
40 Correct 861 ms 1172 KB Output is correct
41 Correct 821 ms 744 KB Output is correct
42 Correct 860 ms 992 KB Output is correct
43 Correct 902 ms 1408 KB Output is correct
44 Correct 892 ms 1044 KB Output is correct
45 Correct 8 ms 344 KB Output is correct
46 Correct 9 ms 344 KB Output is correct
47 Correct 29 ms 344 KB Output is correct
48 Correct 29 ms 344 KB Output is correct
49 Correct 25 ms 344 KB Output is correct
50 Correct 226 ms 344 KB Output is correct
51 Correct 204 ms 452 KB Output is correct
52 Correct 192 ms 600 KB Output is correct
53 Correct 320 ms 340 KB Output is correct
54 Correct 299 ms 848 KB Output is correct
55 Correct 301 ms 464 KB Output is correct
56 Correct 853 ms 1272 KB Output is correct
57 Correct 833 ms 1024 KB Output is correct
58 Correct 850 ms 980 KB Output is correct
59 Correct 816 ms 1156 KB Output is correct
60 Correct 838 ms 948 KB Output is correct
61 Correct 740 ms 936 KB Output is correct
62 Correct 793 ms 552 KB Output is correct
63 Correct 710 ms 928 KB Output is correct
64 Correct 781 ms 948 KB Output is correct

Subtask #4
0.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 344 KB Output is correct
2 Correct 20 ms 344 KB Output is correct
3 Partially correct 143 ms 344 KB Output is partially correct
4 Partially correct 425 ms 456 KB Output is partially correct
5 Partially correct 855 ms 676 KB Output is partially correct
6 Incorrect 0 ms 344 KB Incorrect
7 Halted 0 ms 0 KB -