oj.uz

Submission #532248

# Submission time Handle Problem Language Result Execution time Memory
532248 2022-03-02T14:54:12 Z Alex_tz307 Cats or Dogs (JOI18_catdog) C++17
38 / 100
 3000 ms 7068 KB 
#include <bits/stdc++.h>
#include "catdog.h"
#define INF 0x3f3f3f3f

using namespace std;

const int kN = 1e5;
vector<int> g[1 + kN];
short col[1 + kN];
int dp[1 + kN][2];

void minSelf(int &x, int y) {
  if (y < x) {
    x = y;
  }
}

void dfs(int u, int par) {
  dp[u][0] = dp[u][1] = 0;
  for (int v : g[u]) {
    if (v != par) {
      dfs(v, u);
      for (int i = 0; i < 2; ++i) {
        dp[u][i] += min(dp[v][i], dp[v][i ^ 1] + 1);
      }
    }
  }
  if (col[u] < 2) {
    dp[u][col[u]] = INF;
  }
}

void initialize(int N, vector<int> A, vector<int> B) {
  for (int i = 0; i < N - 1; ++i) {
    g[A[i]].emplace_back(B[i]);
    g[B[i]].emplace_back(A[i]);
  }
  for (int v = 1; v <= N; ++v) {
    col[v] = 2;
  }
}

int cat(int v) {
  col[v] = 0;
  dfs(1, 0);
  return min(dp[1][0], dp[1][1]);
}

int dog(int v) {
  col[v] = 1;
  dfs(1, 0);
  return min(dp[1][0], dp[1][1]);
}

int neighbor(int v) {
  col[v] = 2;
  dfs(1, 0);
  return min(dp[1][0], dp[1][1]);
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2636 KB Output is correct
2 Correct 3 ms 2636 KB Output is correct
3 Correct 2 ms 2648 KB Output is correct
4 Correct 3 ms 2636 KB Output is correct
5 Correct 2 ms 2636 KB Output is correct
6 Correct 3 ms 2648 KB Output is correct
7 Correct 2 ms 2636 KB Output is correct
8 Correct 2 ms 2636 KB Output is correct
9 Correct 2 ms 2636 KB Output is correct
10 Correct 2 ms 2636 KB Output is correct
11 Correct 2 ms 2656 KB Output is correct
12 Correct 2 ms 2592 KB Output is correct
13 Correct 2 ms 2636 KB Output is correct
14 Correct 2 ms 2636 KB Output is correct
15 Correct 2 ms 2648 KB Output is correct
16 Correct 2 ms 2636 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2636 KB Output is correct
2 Correct 3 ms 2636 KB Output is correct
3 Correct 2 ms 2648 KB Output is correct
4 Correct 3 ms 2636 KB Output is correct
5 Correct 2 ms 2636 KB Output is correct
6 Correct 3 ms 2648 KB Output is correct
7 Correct 2 ms 2636 KB Output is correct
8 Correct 2 ms 2636 KB Output is correct
9 Correct 2 ms 2636 KB Output is correct
10 Correct 2 ms 2636 KB Output is correct
11 Correct 2 ms 2656 KB Output is correct
12 Correct 2 ms 2592 KB Output is correct
13 Correct 2 ms 2636 KB Output is correct
14 Correct 2 ms 2636 KB Output is correct
15 Correct 2 ms 2648 KB Output is correct
16 Correct 2 ms 2636 KB Output is correct
17 Correct 13 ms 2636 KB Output is correct
18 Correct 13 ms 2720 KB Output is correct
19 Correct 8 ms 2704 KB Output is correct
20 Correct 2 ms 2636 KB Output is correct
21 Correct 4 ms 2636 KB Output is correct
22 Correct 4 ms 2628 KB Output is correct
23 Correct 14 ms 2656 KB Output is correct
24 Correct 11 ms 2712 KB Output is correct
25 Correct 5 ms 2636 KB Output is correct
26 Correct 3 ms 2636 KB Output is correct
27 Correct 3 ms 2636 KB Output is correct
28 Correct 4 ms 2636 KB Output is correct
29 Correct 14 ms 2768 KB Output is correct
30 Correct 3 ms 2636 KB Output is correct
31 Correct 3 ms 2636 KB Output is correct
32 Correct 4 ms 2656 KB Output is correct

Subtask #3
0 / 62.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2636 KB Output is correct
2 Correct 3 ms 2636 KB Output is correct
3 Correct 2 ms 2648 KB Output is correct
4 Correct 3 ms 2636 KB Output is correct
5 Correct 2 ms 2636 KB Output is correct
6 Correct 3 ms 2648 KB Output is correct
7 Correct 2 ms 2636 KB Output is correct
8 Correct 2 ms 2636 KB Output is correct
9 Correct 2 ms 2636 KB Output is correct
10 Correct 2 ms 2636 KB Output is correct
11 Correct 2 ms 2656 KB Output is correct
12 Correct 2 ms 2592 KB Output is correct
13 Correct 2 ms 2636 KB Output is correct
14 Correct 2 ms 2636 KB Output is correct
15 Correct 2 ms 2648 KB Output is correct
16 Correct 2 ms 2636 KB Output is correct
17 Correct 13 ms 2636 KB Output is correct
18 Correct 13 ms 2720 KB Output is correct
19 Correct 8 ms 2704 KB Output is correct
20 Correct 2 ms 2636 KB Output is correct
21 Correct 4 ms 2636 KB Output is correct
22 Correct 4 ms 2628 KB Output is correct
23 Correct 14 ms 2656 KB Output is correct
24 Correct 11 ms 2712 KB Output is correct
25 Correct 5 ms 2636 KB Output is correct
26 Correct 3 ms 2636 KB Output is correct
27 Correct 3 ms 2636 KB Output is correct
28 Correct 4 ms 2636 KB Output is correct
29 Correct 14 ms 2768 KB Output is correct
30 Correct 3 ms 2636 KB Output is correct
31 Correct 3 ms 2636 KB Output is correct
32 Correct 4 ms 2656 KB Output is correct
33 Execution timed out 3015 ms 7068 KB Time limit exceeded
34 Halted 0 ms 0 KB -