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Submission #79685

# Submission time Handle Problem Language Result Execution time Memory
79685 2018-10-15T12:04:03 Z Mahdi_Jfri Cats or Dogs (JOI18_catdog) C++14
38 / 100
 3000 ms 6764 KB 
#include "catdog.h"
#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define pb push_back

const int maxn = 1e5 + 20;

int n , dp[maxn][2] , state[maxn];

vector<int> adj[maxn];

void initialize(int N, std::vector<int> A, std::vector<int> B)
{
	n = N;

	for(int i = 0; i < n - 1; i++)
	{
		int a = A[i] , b = B[i];
		a-- , b--;

		adj[a].pb(b);
		adj[b].pb(a);
	}

	fill(state , state + n , 2);
}

void dfs(int v , int p = -1)
{
	if(state[v] != 2)
		dp[v][!state[v]] = n;

	for(auto u : adj[v])
		if(u != p)
		{
			dfs(u , v);

			for(int i = 0; i < 2; i++)
				dp[v][i] += min(dp[u][!i] + 1 , dp[u][i]);
		}
}

int solve()
{
	memset(dp , 0 , sizeof dp);
	dfs(0);

	return min(dp[0][0] , dp[0][1]);
}

int cat(int v)
{
	v--;
	state[v] = 0;
	
	return solve();
}

int dog(int v)
{
	v--;
	state[v] = 1;

	return solve();
}

int neighbor(int v)
{
	v--;
	state[v] = 2;

	return solve();
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 3448 KB Output is correct
2 Correct 6 ms 3580 KB Output is correct
3 Correct 6 ms 3580 KB Output is correct
4 Correct 9 ms 3580 KB Output is correct
5 Correct 9 ms 3700 KB Output is correct
6 Correct 9 ms 3700 KB Output is correct
7 Correct 9 ms 3700 KB Output is correct
8 Correct 9 ms 3700 KB Output is correct
9 Correct 9 ms 3700 KB Output is correct
10 Correct 9 ms 3700 KB Output is correct
11 Correct 8 ms 3700 KB Output is correct
12 Correct 5 ms 3700 KB Output is correct
13 Correct 6 ms 3700 KB Output is correct
14 Correct 7 ms 3700 KB Output is correct
15 Correct 7 ms 3700 KB Output is correct
16 Correct 9 ms 3700 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 3448 KB Output is correct
2 Correct 6 ms 3580 KB Output is correct
3 Correct 6 ms 3580 KB Output is correct
4 Correct 9 ms 3580 KB Output is correct
5 Correct 9 ms 3700 KB Output is correct
6 Correct 9 ms 3700 KB Output is correct
7 Correct 9 ms 3700 KB Output is correct
8 Correct 9 ms 3700 KB Output is correct
9 Correct 9 ms 3700 KB Output is correct
10 Correct 9 ms 3700 KB Output is correct
11 Correct 8 ms 3700 KB Output is correct
12 Correct 5 ms 3700 KB Output is correct
13 Correct 6 ms 3700 KB Output is correct
14 Correct 7 ms 3700 KB Output is correct
15 Correct 7 ms 3700 KB Output is correct
16 Correct 9 ms 3700 KB Output is correct
17 Correct 45 ms 3700 KB Output is correct
18 Correct 45 ms 3708 KB Output is correct
19 Correct 28 ms 3800 KB Output is correct
20 Correct 11 ms 3800 KB Output is correct
21 Correct 25 ms 3800 KB Output is correct
22 Correct 25 ms 3800 KB Output is correct
23 Correct 58 ms 3800 KB Output is correct
24 Correct 50 ms 3800 KB Output is correct
25 Correct 41 ms 3800 KB Output is correct
26 Correct 19 ms 3800 KB Output is correct
27 Correct 19 ms 3800 KB Output is correct
28 Correct 15 ms 3800 KB Output is correct
29 Correct 62 ms 3852 KB Output is correct
30 Correct 30 ms 3852 KB Output is correct
31 Correct 10 ms 3852 KB Output is correct
32 Correct 38 ms 3852 KB Output is correct

Subtask #3
0 / 62.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 3448 KB Output is correct
2 Correct 6 ms 3580 KB Output is correct
3 Correct 6 ms 3580 KB Output is correct
4 Correct 9 ms 3580 KB Output is correct
5 Correct 9 ms 3700 KB Output is correct
6 Correct 9 ms 3700 KB Output is correct
7 Correct 9 ms 3700 KB Output is correct
8 Correct 9 ms 3700 KB Output is correct
9 Correct 9 ms 3700 KB Output is correct
10 Correct 9 ms 3700 KB Output is correct
11 Correct 8 ms 3700 KB Output is correct
12 Correct 5 ms 3700 KB Output is correct
13 Correct 6 ms 3700 KB Output is correct
14 Correct 7 ms 3700 KB Output is correct
15 Correct 7 ms 3700 KB Output is correct
16 Correct 9 ms 3700 KB Output is correct
17 Correct 45 ms 3700 KB Output is correct
18 Correct 45 ms 3708 KB Output is correct
19 Correct 28 ms 3800 KB Output is correct
20 Correct 11 ms 3800 KB Output is correct
21 Correct 25 ms 3800 KB Output is correct
22 Correct 25 ms 3800 KB Output is correct
23 Correct 58 ms 3800 KB Output is correct
24 Correct 50 ms 3800 KB Output is correct
25 Correct 41 ms 3800 KB Output is correct
26 Correct 19 ms 3800 KB Output is correct
27 Correct 19 ms 3800 KB Output is correct
28 Correct 15 ms 3800 KB Output is correct
29 Correct 62 ms 3852 KB Output is correct
30 Correct 30 ms 3852 KB Output is correct
31 Correct 10 ms 3852 KB Output is correct
32 Correct 38 ms 3852 KB Output is correct
33 Execution timed out 3031 ms 6764 KB Time limit exceeded
34 Halted 0 ms 0 KB -