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Submission #886642

# Submission time Handle Problem Language Result Execution time Memory
886642 2023-12-12T14:30:13 Z stefanneagu Power Plant (JOI20_power) C++17
100 / 100
 89 ms 25952 KB 
#include <bits/stdc++.h>

using namespace std;

const int nmax = 2e5 + 1;

int v[nmax], dp[nmax], ans;
bool f[nmax];
vector<vector<int>> adj(nmax);

void dfs(int i, int tata) {
  for(auto fiu : adj[i]) {
    if(fiu != tata) {
      dfs(fiu, i);
    }
  }
  int sum = 0, maxx = 0;
  for(auto fiu : adj[i]) {
    sum += dp[fiu];
    maxx = max(maxx, dp[fiu]);
  }
  if(f[i]) {
    ans = max({ans, maxx + 1, sum - 1});
  } else {
    ans = max({ans, maxx, sum});
  }
  dp[i] = max(f[i] * 1, sum - f[i]);
}

int32_t main() {
  ios_base::sync_with_stdio(false);
  cin.tie();
  cout.tie();
  int n;
  cin >> n;
  adj.resize(n + 1);
  for(int i = 1; i < n; i ++) {
    int a, b;
    cin >> a >> b;
    adj[a].push_back(b);
    adj[b].push_back(a);
  }
  for(int i = 1; i <= n; i ++) {
    char ch;
    cin >> ch;
    f[i] = ch - '0';
  }
  dfs(1, 0);
  cout << ans;
  return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4952 KB Output is correct
2 Correct 2 ms 4956 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 1 ms 4956 KB Output is correct
7 Correct 2 ms 5168 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4952 KB Output is correct
10 Correct 1 ms 4952 KB Output is correct
11 Correct 2 ms 4952 KB Output is correct
12 Correct 2 ms 4956 KB Output is correct
13 Correct 2 ms 4956 KB Output is correct
14 Correct 2 ms 4952 KB Output is correct
15 Correct 2 ms 4956 KB Output is correct
16 Correct 2 ms 4956 KB Output is correct
17 Correct 2 ms 4956 KB Output is correct
18 Correct 2 ms 4956 KB Output is correct
19 Correct 2 ms 4956 KB Output is correct
20 Correct 2 ms 4956 KB Output is correct
21 Correct 1 ms 4956 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4952 KB Output is correct
2 Correct 2 ms 4956 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 1 ms 4956 KB Output is correct
7 Correct 2 ms 5168 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4952 KB Output is correct
10 Correct 1 ms 4952 KB Output is correct
11 Correct 2 ms 4952 KB Output is correct
12 Correct 2 ms 4956 KB Output is correct
13 Correct 2 ms 4956 KB Output is correct
14 Correct 2 ms 4952 KB Output is correct
15 Correct 2 ms 4956 KB Output is correct
16 Correct 2 ms 4956 KB Output is correct
17 Correct 2 ms 4956 KB Output is correct
18 Correct 2 ms 4956 KB Output is correct
19 Correct 2 ms 4956 KB Output is correct
20 Correct 2 ms 4956 KB Output is correct
21 Correct 1 ms 4956 KB Output is correct
22 Correct 2 ms 5212 KB Output is correct
23 Correct 2 ms 5212 KB Output is correct
24 Correct 2 ms 5212 KB Output is correct
25 Correct 2 ms 5212 KB Output is correct
26 Correct 2 ms 5212 KB Output is correct
27 Correct 2 ms 5208 KB Output is correct
28 Correct 2 ms 5212 KB Output is correct
29 Correct 2 ms 5212 KB Output is correct
30 Correct 2 ms 5212 KB Output is correct
31 Correct 2 ms 5212 KB Output is correct
32 Correct 2 ms 5212 KB Output is correct
33 Correct 2 ms 5212 KB Output is correct
34 Correct 2 ms 5208 KB Output is correct
35 Correct 2 ms 5212 KB Output is correct
36 Correct 2 ms 5212 KB Output is correct
37 Correct 2 ms 5212 KB Output is correct
38 Correct 2 ms 5212 KB Output is correct
39 Correct 2 ms 5208 KB Output is correct
40 Correct 3 ms 5464 KB Output is correct
41 Correct 2 ms 5212 KB Output is correct
42 Correct 2 ms 5212 KB Output is correct
43 Correct 2 ms 5212 KB Output is correct
44 Correct 2 ms 5212 KB Output is correct
45 Correct 2 ms 5212 KB Output is correct
46 Correct 2 ms 5212 KB Output is correct
47 Correct 2 ms 5212 KB Output is correct
48 Correct 2 ms 5212 KB Output is correct
49 Correct 2 ms 5212 KB Output is correct
50 Correct 2 ms 5212 KB Output is correct
51 Correct 2 ms 5212 KB Output is correct
52 Correct 2 ms 5212 KB Output is correct
53 Correct 2 ms 5228 KB Output is correct
54 Correct 2 ms 5212 KB Output is correct
55 Correct 2 ms 5212 KB Output is correct
56 Correct 2 ms 5212 KB Output is correct
57 Correct 2 ms 5212 KB Output is correct
58 Correct 2 ms 5212 KB Output is correct
59 Correct 2 ms 5212 KB Output is correct
60 Correct 2 ms 5464 KB Output is correct
61 Correct 2 ms 5176 KB Output is correct
62 Correct 2 ms 5212 KB Output is correct
63 Correct 2 ms 5212 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4952 KB Output is correct
2 Correct 2 ms 4956 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 1 ms 4956 KB Output is correct
7 Correct 2 ms 5168 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4952 KB Output is correct
10 Correct 1 ms 4952 KB Output is correct
11 Correct 2 ms 4952 KB Output is correct
12 Correct 2 ms 4956 KB Output is correct
13 Correct 2 ms 4956 KB Output is correct
14 Correct 2 ms 4952 KB Output is correct
15 Correct 2 ms 4956 KB Output is correct
16 Correct 2 ms 4956 KB Output is correct
17 Correct 2 ms 4956 KB Output is correct
18 Correct 2 ms 4956 KB Output is correct
19 Correct 2 ms 4956 KB Output is correct
20 Correct 2 ms 4956 KB Output is correct
21 Correct 1 ms 4956 KB Output is correct
22 Correct 2 ms 5212 KB Output is correct
23 Correct 2 ms 5212 KB Output is correct
24 Correct 2 ms 5212 KB Output is correct
25 Correct 2 ms 5212 KB Output is correct
26 Correct 2 ms 5212 KB Output is correct
27 Correct 2 ms 5208 KB Output is correct
28 Correct 2 ms 5212 KB Output is correct
29 Correct 2 ms 5212 KB Output is correct
30 Correct 2 ms 5212 KB Output is correct
31 Correct 2 ms 5212 KB Output is correct
32 Correct 2 ms 5212 KB Output is correct
33 Correct 2 ms 5212 KB Output is correct
34 Correct 2 ms 5208 KB Output is correct
35 Correct 2 ms 5212 KB Output is correct
36 Correct 2 ms 5212 KB Output is correct
37 Correct 2 ms 5212 KB Output is correct
38 Correct 2 ms 5212 KB Output is correct
39 Correct 2 ms 5208 KB Output is correct
40 Correct 3 ms 5464 KB Output is correct
41 Correct 2 ms 5212 KB Output is correct
42 Correct 2 ms 5212 KB Output is correct
43 Correct 2 ms 5212 KB Output is correct
44 Correct 2 ms 5212 KB Output is correct
45 Correct 2 ms 5212 KB Output is correct
46 Correct 2 ms 5212 KB Output is correct
47 Correct 2 ms 5212 KB Output is correct
48 Correct 2 ms 5212 KB Output is correct
49 Correct 2 ms 5212 KB Output is correct
50 Correct 2 ms 5212 KB Output is correct
51 Correct 2 ms 5212 KB Output is correct
52 Correct 2 ms 5212 KB Output is correct
53 Correct 2 ms 5228 KB Output is correct
54 Correct 2 ms 5212 KB Output is correct
55 Correct 2 ms 5212 KB Output is correct
56 Correct 2 ms 5212 KB Output is correct
57 Correct 2 ms 5212 KB Output is correct
58 Correct 2 ms 5212 KB Output is correct
59 Correct 2 ms 5212 KB Output is correct
60 Correct 2 ms 5464 KB Output is correct
61 Correct 2 ms 5176 KB Output is correct
62 Correct 2 ms 5212 KB Output is correct
63 Correct 2 ms 5212 KB Output is correct
64 Correct 64 ms 12276 KB Output is correct
65 Correct 64 ms 15180 KB Output is correct
66 Correct 66 ms 15188 KB Output is correct
67 Correct 63 ms 15188 KB Output is correct
68 Correct 62 ms 15184 KB Output is correct
69 Correct 76 ms 15132 KB Output is correct
70 Correct 61 ms 15188 KB Output is correct
71 Correct 76 ms 15188 KB Output is correct
72 Correct 65 ms 15188 KB Output is correct
73 Correct 83 ms 25172 KB Output is correct
74 Correct 78 ms 25172 KB Output is correct
75 Correct 61 ms 14932 KB Output is correct
76 Correct 66 ms 15028 KB Output is correct
77 Correct 67 ms 15092 KB Output is correct
78 Correct 66 ms 14928 KB Output is correct
79 Correct 62 ms 14912 KB Output is correct
80 Correct 59 ms 14984 KB Output is correct
81 Correct 62 ms 15424 KB Output is correct
82 Correct 59 ms 15068 KB Output is correct
83 Correct 89 ms 19060 KB Output is correct
84 Correct 70 ms 20820 KB Output is correct
85 Correct 73 ms 20564 KB Output is correct
86 Correct 63 ms 16220 KB Output is correct
87 Correct 64 ms 15696 KB Output is correct
88 Correct 66 ms 16212 KB Output is correct
89 Correct 87 ms 16180 KB Output is correct
90 Correct 73 ms 15952 KB Output is correct
91 Correct 73 ms 16264 KB Output is correct
92 Correct 71 ms 16380 KB Output is correct
93 Correct 58 ms 18284 KB Output is correct
94 Correct 65 ms 19660 KB Output is correct
95 Correct 69 ms 18640 KB Output is correct
96 Correct 78 ms 17236 KB Output is correct
97 Correct 60 ms 15956 KB Output is correct
98 Correct 61 ms 15616 KB Output is correct
99 Correct 65 ms 15440 KB Output is correct
100 Correct 67 ms 18004 KB Output is correct
101 Correct 63 ms 16448 KB Output is correct
102 Correct 66 ms 15696 KB Output is correct
103 Correct 65 ms 15696 KB Output is correct
104 Correct 54 ms 16072 KB Output is correct
105 Correct 74 ms 22712 KB Output is correct
106 Correct 43 ms 15560 KB Output is correct
107 Correct 44 ms 15560 KB Output is correct
108 Correct 75 ms 25684 KB Output is correct
109 Correct 46 ms 15812 KB Output is correct
110 Correct 81 ms 25952 KB Output is correct
111 Correct 62 ms 14932 KB Output is correct