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Submission #66326

# Submission time Handle Problem Language Result Execution time Memory
66326 2018-08-10T08:43:17 Z zadrga Cats or Dogs (JOI18_catdog) C++14
38 / 100
 3000 ms 8284 KB 
#include "catdog.h"
#include <bits/stdc++.h>

using namespace std;

#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define INF (1 << 20)
#define MOD (1000 * 1000 * 1000 + 7)
#define maxn 100111

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;

int n;
vector<int> adj[maxn];
int col[maxn], dp[maxn][3];

void DFS(int x, int p){
	dp[x][1] = dp[x][2] = 0;
	if(col[x] != 0)
		dp[x][3 - col[x]] = INF;


	for(int v : adj[x]){
		if(v == p)
			continue;

		DFS(v, x);

		dp[x][1] += min(dp[v][1], 1 + dp[v][2]);
		dp[x][2] += min(1 + dp[v][1], dp[v][2]);
	}
}

int solve(){
	DFS(1, -1);
	return min(dp[1][1], dp[1][2]);
}


void initialize(int N, vector<int> A, vector<int> B){
	n = N;
	for(int i = 0; i < n - 1; i++){
		adj[A[i]].pb(B[i]);
		adj[B[i]].pb(A[i]);
	}
}

int cat(int v){
	col[v] = 1;
	return solve();
}

int dog(int v){
	col[v] = 2;
	return solve();
}

int neighbor(int v){
	col[v] = 0;
	return solve();
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 5 ms 2792 KB Output is correct
3 Correct 7 ms 2900 KB Output is correct
4 Correct 5 ms 2900 KB Output is correct
5 Correct 6 ms 2900 KB Output is correct
6 Correct 4 ms 2944 KB Output is correct
7 Correct 6 ms 2944 KB Output is correct
8 Correct 4 ms 2944 KB Output is correct
9 Correct 6 ms 2944 KB Output is correct
10 Correct 5 ms 2996 KB Output is correct
11 Correct 5 ms 3076 KB Output is correct
12 Correct 5 ms 3076 KB Output is correct
13 Correct 6 ms 3076 KB Output is correct
14 Correct 5 ms 3076 KB Output is correct
15 Correct 5 ms 3076 KB Output is correct
16 Correct 4 ms 3076 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 5 ms 2792 KB Output is correct
3 Correct 7 ms 2900 KB Output is correct
4 Correct 5 ms 2900 KB Output is correct
5 Correct 6 ms 2900 KB Output is correct
6 Correct 4 ms 2944 KB Output is correct
7 Correct 6 ms 2944 KB Output is correct
8 Correct 4 ms 2944 KB Output is correct
9 Correct 6 ms 2944 KB Output is correct
10 Correct 5 ms 2996 KB Output is correct
11 Correct 5 ms 3076 KB Output is correct
12 Correct 5 ms 3076 KB Output is correct
13 Correct 6 ms 3076 KB Output is correct
14 Correct 5 ms 3076 KB Output is correct
15 Correct 5 ms 3076 KB Output is correct
16 Correct 4 ms 3076 KB Output is correct
17 Correct 14 ms 3168 KB Output is correct
18 Correct 17 ms 3220 KB Output is correct
19 Correct 11 ms 3248 KB Output is correct
20 Correct 6 ms 3248 KB Output is correct
21 Correct 6 ms 3280 KB Output is correct
22 Correct 7 ms 3280 KB Output is correct
23 Correct 17 ms 3348 KB Output is correct
24 Correct 16 ms 3452 KB Output is correct
25 Correct 10 ms 3452 KB Output is correct
26 Correct 7 ms 3452 KB Output is correct
27 Correct 7 ms 3452 KB Output is correct
28 Correct 7 ms 3452 KB Output is correct
29 Correct 20 ms 3524 KB Output is correct
30 Correct 6 ms 3524 KB Output is correct
31 Correct 5 ms 3524 KB Output is correct
32 Correct 8 ms 3524 KB Output is correct

Subtask #3
0 / 62.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 5 ms 2792 KB Output is correct
3 Correct 7 ms 2900 KB Output is correct
4 Correct 5 ms 2900 KB Output is correct
5 Correct 6 ms 2900 KB Output is correct
6 Correct 4 ms 2944 KB Output is correct
7 Correct 6 ms 2944 KB Output is correct
8 Correct 4 ms 2944 KB Output is correct
9 Correct 6 ms 2944 KB Output is correct
10 Correct 5 ms 2996 KB Output is correct
11 Correct 5 ms 3076 KB Output is correct
12 Correct 5 ms 3076 KB Output is correct
13 Correct 6 ms 3076 KB Output is correct
14 Correct 5 ms 3076 KB Output is correct
15 Correct 5 ms 3076 KB Output is correct
16 Correct 4 ms 3076 KB Output is correct
17 Correct 14 ms 3168 KB Output is correct
18 Correct 17 ms 3220 KB Output is correct
19 Correct 11 ms 3248 KB Output is correct
20 Correct 6 ms 3248 KB Output is correct
21 Correct 6 ms 3280 KB Output is correct
22 Correct 7 ms 3280 KB Output is correct
23 Correct 17 ms 3348 KB Output is correct
24 Correct 16 ms 3452 KB Output is correct
25 Correct 10 ms 3452 KB Output is correct
26 Correct 7 ms 3452 KB Output is correct
27 Correct 7 ms 3452 KB Output is correct
28 Correct 7 ms 3452 KB Output is correct
29 Correct 20 ms 3524 KB Output is correct
30 Correct 6 ms 3524 KB Output is correct
31 Correct 5 ms 3524 KB Output is correct
32 Correct 8 ms 3524 KB Output is correct
33 Execution timed out 3028 ms 8284 KB Time limit exceeded
34 Halted 0 ms 0 KB -