oj.uz

Submission #551604

# Submission time Handle Problem Language Result Execution time Memory
551604 2022-04-21T07:02:19 Z QwertyPi Cats or Dogs (JOI18_catdog) C++14
38 / 100
 3000 ms 15896 KB 
#include "catdog.h"
#include <bits/stdc++.h>
#define se second
#define fi first
#define pb push_back
using namespace std;

const int N = 1e5 + 3;
const int inf = 1 << 30;
int n, A[N], p[N], anc[N], d[N];
int dp[N][2];
vector<int> G[N];

struct CD{
	void insert(int v, int cd){
		
	}
	void erase(int v){
		
	}
} V[N];
void dfs(int v, int par){
	for(auto i : G[v]){
		if(i != par){
			p[i] = v;
			anc[i] = (G[v].size() - (v != 1) == 1) ? anc[v] : v;
			d[i] = d[v] + 1;
			dfs(i, v);
		}
	}
}

void initialize(int n, vector<int> A, vector<int> B) {
	::n = n;
	for(int i = 0; i < n - 1; i++){
		G[A[i]].pb(B[i]);
		G[B[i]].pb(A[i]);
	}
	dfs(1, -1);
	map<int, vector<int>> PC;
	for(int i = 1; i <= n; i++){
		PC[anc[i]].push_back(i);
	}
	for(auto& i : PC){
		sort(i.se.begin(), i.se.end(), [](int a, int b){
			return d[a] < d[b];
		});
	}
}

void lift(int v){
	while(v != 0){
		dp[v][0] = dp[v][1] = 0; 
		for(auto i : G[v]){
			if(i != p[v]){
				dp[v][0] += min(dp[i][0], dp[i][1] + 1);
				dp[v][1] += min(dp[i][1], dp[i][0] + 1);
			}
		}
		if(A[v] == 1) dp[v][1] = inf;
		else if(A[v] == 2) dp[v][0] = inf;
		v = p[v];
	}
}

int cat(int v) {
	A[v] = 1;
	V[anc[v]].insert(v, 1);
	lift(v);
//	cout << "c<<<" << endl;
//	for(int i = 1; i <= n; i++){
//		cout << dp[i][0] << ' ' << dp[i][1] << endl;
//	}
	return min(dp[1][0], dp[1][1]);
}

int dog(int v) {
	A[v] = 2;
	V[anc[v]].insert(v, 2);
	lift(v);
//	cout << "d<<<" << endl;
//	for(int i = 1; i <= n; i++){
//		cout << dp[i][0] << ' ' << dp[i][1] << endl;
//	}
	return min(dp[1][0], dp[1][1]);
}

int neighbor(int v) {
	A[v] = 0;
	V[anc[v]].erase(v);
	lift(v);
//	cout << "n<<<" << endl;
//	for(int i = 1; i <= n; i++){
//		cout << dp[i][0] << ' ' << dp[i][1] << endl;
//	}
	return min(dp[1][0], dp[1][1]);
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 1 ms 2672 KB Output is correct
4 Correct 1 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 2 ms 2672 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 2 ms 2644 KB Output is correct
12 Correct 2 ms 2644 KB Output is correct
13 Correct 2 ms 2676 KB Output is correct
14 Correct 2 ms 2676 KB Output is correct
15 Correct 2 ms 2644 KB Output is correct
16 Correct 2 ms 2644 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 1 ms 2672 KB Output is correct
4 Correct 1 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 2 ms 2672 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 2 ms 2644 KB Output is correct
12 Correct 2 ms 2644 KB Output is correct
13 Correct 2 ms 2676 KB Output is correct
14 Correct 2 ms 2676 KB Output is correct
15 Correct 2 ms 2644 KB Output is correct
16 Correct 2 ms 2644 KB Output is correct
17 Correct 3 ms 2772 KB Output is correct
18 Correct 2 ms 2772 KB Output is correct
19 Correct 2 ms 2772 KB Output is correct
20 Correct 2 ms 2672 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct
22 Correct 2 ms 2644 KB Output is correct
23 Correct 3 ms 2680 KB Output is correct
24 Correct 2 ms 2772 KB Output is correct
25 Correct 2 ms 2644 KB Output is correct
26 Correct 2 ms 2720 KB Output is correct
27 Correct 2 ms 2644 KB Output is correct
28 Correct 2 ms 2772 KB Output is correct
29 Correct 4 ms 2772 KB Output is correct
30 Correct 2 ms 2644 KB Output is correct
31 Correct 2 ms 2680 KB Output is correct
32 Correct 2 ms 2672 KB Output is correct

Subtask #3
0 / 62.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 1 ms 2672 KB Output is correct
4 Correct 1 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 2 ms 2672 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 2 ms 2644 KB Output is correct
12 Correct 2 ms 2644 KB Output is correct
13 Correct 2 ms 2676 KB Output is correct
14 Correct 2 ms 2676 KB Output is correct
15 Correct 2 ms 2644 KB Output is correct
16 Correct 2 ms 2644 KB Output is correct
17 Correct 3 ms 2772 KB Output is correct
18 Correct 2 ms 2772 KB Output is correct
19 Correct 2 ms 2772 KB Output is correct
20 Correct 2 ms 2672 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct
22 Correct 2 ms 2644 KB Output is correct
23 Correct 3 ms 2680 KB Output is correct
24 Correct 2 ms 2772 KB Output is correct
25 Correct 2 ms 2644 KB Output is correct
26 Correct 2 ms 2720 KB Output is correct
27 Correct 2 ms 2644 KB Output is correct
28 Correct 2 ms 2772 KB Output is correct
29 Correct 4 ms 2772 KB Output is correct
30 Correct 2 ms 2644 KB Output is correct
31 Correct 2 ms 2680 KB Output is correct
32 Correct 2 ms 2672 KB Output is correct
33 Correct 175 ms 9768 KB Output is correct
34 Correct 85 ms 9904 KB Output is correct
35 Correct 235 ms 8164 KB Output is correct
36 Correct 321 ms 14168 KB Output is correct
37 Correct 19 ms 6092 KB Output is correct
38 Correct 360 ms 15360 KB Output is correct
39 Correct 344 ms 15320 KB Output is correct
40 Correct 431 ms 15896 KB Output is correct
41 Correct 387 ms 15380 KB Output is correct
42 Correct 489 ms 15772 KB Output is correct
43 Correct 395 ms 15388 KB Output is correct
44 Correct 423 ms 15756 KB Output is correct
45 Correct 559 ms 15388 KB Output is correct
46 Correct 401 ms 15420 KB Output is correct
47 Correct 350 ms 15752 KB Output is correct
48 Execution timed out 3078 ms 9668 KB Time limit exceeded
49 Halted 0 ms 0 KB -