oj.uz

Submission #363237

# Submission time Handle Problem Language Result Execution time Memory
363237 2021-02-05T10:28:29 Z buyolitsez Cats or Dogs (JOI18_catdog) C++17
38 / 100
 3000 ms 7516 KB 
#include "catdog.h"
#include <bits/stdc++.h>

using namespace std;

int x;

const int MAXN = 1e5 + 15;
const int INF = 2139062143;

vector <int> adj[MAXN];
int type[MAXN];
int dp[MAXN][3];
int mn[MAXN];

void initialize(int N, std::vector<int> A, std::vector<int> B) {
  x = A.size();
  memset(type, 0, sizeof(type));
  for (int i = 0; i < x; ++i) {
  	int a = A[i], b = B[i];
  	adj[a].emplace_back(b);
  	adj[b].emplace_back(a);
  }
}

void DFS(int v, int p = -1) {
	for (auto u : adj[v]) {
		if (u != p) {
            DFS(u, v);
        }
	}
	for (int myType = 0; myType < 3; ++myType) {
        if (type[v] != 0 && myType != type[v]) {continue;}
        dp[v][myType] = 0;
        for (auto u : adj[v]) {
            if (u == p) {continue;}
            //удаляю ребро
            int now = mn[u] + 1;
            for (int nxtType = 0; nxtType < 3; ++nxtType) {
                if (dp[u][nxtType] == INF) { continue; }
                // оставляю ребро
                if (nxtType != 0 && myType != nxtType) { continue; }
                now = min(now, dp[u][nxtType]);
            }
            dp[v][myType] += now;
        }
    }
	mn[v] = min({dp[v][0], dp[v][1], dp[v][2]});
}

int Calc() {
	memset(dp, 127, sizeof(dp));
	memset(mn, 127, sizeof(mn));
	DFS(1);
	return mn[1];
}

int cat(int v) {
	type[v] = 1;
	return Calc();
}

int dog(int v) {
	type[v] = 2;
	return Calc();
}

int neighbor(int v) {
	type[v] = 0;
	return Calc();
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4588 KB Output is correct
2 Correct 5 ms 4588 KB Output is correct
3 Correct 5 ms 4588 KB Output is correct
4 Correct 9 ms 4588 KB Output is correct
5 Correct 8 ms 4588 KB Output is correct
6 Correct 9 ms 4588 KB Output is correct
7 Correct 9 ms 4588 KB Output is correct
8 Correct 9 ms 4588 KB Output is correct
9 Correct 9 ms 4588 KB Output is correct
10 Correct 9 ms 4588 KB Output is correct
11 Correct 8 ms 4588 KB Output is correct
12 Correct 3 ms 4588 KB Output is correct
13 Correct 6 ms 4588 KB Output is correct
14 Correct 7 ms 4588 KB Output is correct
15 Correct 7 ms 4588 KB Output is correct
16 Correct 9 ms 4588 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4588 KB Output is correct
2 Correct 5 ms 4588 KB Output is correct
3 Correct 5 ms 4588 KB Output is correct
4 Correct 9 ms 4588 KB Output is correct
5 Correct 8 ms 4588 KB Output is correct
6 Correct 9 ms 4588 KB Output is correct
7 Correct 9 ms 4588 KB Output is correct
8 Correct 9 ms 4588 KB Output is correct
9 Correct 9 ms 4588 KB Output is correct
10 Correct 9 ms 4588 KB Output is correct
11 Correct 8 ms 4588 KB Output is correct
12 Correct 3 ms 4588 KB Output is correct
13 Correct 6 ms 4588 KB Output is correct
14 Correct 7 ms 4588 KB Output is correct
15 Correct 7 ms 4588 KB Output is correct
16 Correct 9 ms 4588 KB Output is correct
17 Correct 80 ms 4716 KB Output is correct
18 Correct 85 ms 4716 KB Output is correct
19 Correct 47 ms 4716 KB Output is correct
20 Correct 5 ms 4588 KB Output is correct
21 Correct 29 ms 4588 KB Output is correct
22 Correct 38 ms 4588 KB Output is correct
23 Correct 107 ms 4716 KB Output is correct
24 Correct 91 ms 4716 KB Output is correct
25 Correct 60 ms 4588 KB Output is correct
26 Correct 27 ms 4588 KB Output is correct
27 Correct 24 ms 4588 KB Output is correct
28 Correct 22 ms 4844 KB Output is correct
29 Correct 93 ms 4716 KB Output is correct
30 Correct 40 ms 4588 KB Output is correct
31 Correct 12 ms 4716 KB Output is correct
32 Correct 51 ms 4588 KB Output is correct

Subtask #3
0 / 62.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4588 KB Output is correct
2 Correct 5 ms 4588 KB Output is correct
3 Correct 5 ms 4588 KB Output is correct
4 Correct 9 ms 4588 KB Output is correct
5 Correct 8 ms 4588 KB Output is correct
6 Correct 9 ms 4588 KB Output is correct
7 Correct 9 ms 4588 KB Output is correct
8 Correct 9 ms 4588 KB Output is correct
9 Correct 9 ms 4588 KB Output is correct
10 Correct 9 ms 4588 KB Output is correct
11 Correct 8 ms 4588 KB Output is correct
12 Correct 3 ms 4588 KB Output is correct
13 Correct 6 ms 4588 KB Output is correct
14 Correct 7 ms 4588 KB Output is correct
15 Correct 7 ms 4588 KB Output is correct
16 Correct 9 ms 4588 KB Output is correct
17 Correct 80 ms 4716 KB Output is correct
18 Correct 85 ms 4716 KB Output is correct
19 Correct 47 ms 4716 KB Output is correct
20 Correct 5 ms 4588 KB Output is correct
21 Correct 29 ms 4588 KB Output is correct
22 Correct 38 ms 4588 KB Output is correct
23 Correct 107 ms 4716 KB Output is correct
24 Correct 91 ms 4716 KB Output is correct
25 Correct 60 ms 4588 KB Output is correct
26 Correct 27 ms 4588 KB Output is correct
27 Correct 24 ms 4588 KB Output is correct
28 Correct 22 ms 4844 KB Output is correct
29 Correct 93 ms 4716 KB Output is correct
30 Correct 40 ms 4588 KB Output is correct
31 Correct 12 ms 4716 KB Output is correct
32 Correct 51 ms 4588 KB Output is correct
33 Execution timed out 3068 ms 7516 KB Time limit exceeded
34 Halted 0 ms 0 KB -