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Submission #817956

# Submission time Handle Problem Language Result Execution time Memory
817956 2023-08-09T21:29:17 Z tch1cherin Power Plant (JOI20_power) C++17
100 / 100
 124 ms 28888 KB 
#include <bits/stdc++.h>
using namespace std;
 
const int MAX_N = 2e5 + 5;
vector<int> G[MAX_N];
int dp[MAX_N] = {};
string S;
int ans;
 
void DFS(int u, int p) {
  if (S[u] == '0') {
    for (int v : G[u]) {
      if (v != p) {
        DFS(v, u);
        dp[u] += dp[v];
      }
    }
    ans = max(ans, dp[u]);
  } else {
    for (int v : G[u]) {
      if (v != p) {
        DFS(v, u);
        ans = max(ans, dp[v] + 1);
        dp[u] += dp[v];
      }
    }
    if (dp[u] > 1) {
      dp[u] -= 1;
    }
    if (dp[u] == 0) {
      dp[u] += 1;
    }
    ans = max(ans, dp[u]);
  }
}
 
int main() {
  cin.tie(nullptr)->sync_with_stdio(false);
  int N;
  cin >> N;
  for (int i = 0; i < N - 1; i++) {
    int A, B;
    cin >> A >> B;
    A--, B--;
    G[A].push_back(B);
    G[B].push_back(A);
  }
  cin >> S;
  ans = 0;
  DFS(0, -1);
  cout << ans << "\n";
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 3 ms 4988 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 2 ms 4948 KB Output is correct
21 Correct 2 ms 4948 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 3 ms 4988 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 2 ms 4948 KB Output is correct
21 Correct 2 ms 4948 KB Output is correct
22 Correct 3 ms 5076 KB Output is correct
23 Correct 3 ms 5076 KB Output is correct
24 Correct 3 ms 5036 KB Output is correct
25 Correct 3 ms 5032 KB Output is correct
26 Correct 3 ms 5036 KB Output is correct
27 Correct 3 ms 5076 KB Output is correct
28 Correct 3 ms 5076 KB Output is correct
29 Correct 3 ms 5204 KB Output is correct
30 Correct 3 ms 5088 KB Output is correct
31 Correct 3 ms 5076 KB Output is correct
32 Correct 4 ms 5168 KB Output is correct
33 Correct 3 ms 5076 KB Output is correct
34 Correct 4 ms 5076 KB Output is correct
35 Correct 3 ms 5032 KB Output is correct
36 Correct 3 ms 5032 KB Output is correct
37 Correct 3 ms 5036 KB Output is correct
38 Correct 3 ms 5032 KB Output is correct
39 Correct 3 ms 5164 KB Output is correct
40 Correct 3 ms 5076 KB Output is correct
41 Correct 3 ms 5076 KB Output is correct
42 Correct 3 ms 5076 KB Output is correct
43 Correct 3 ms 5076 KB Output is correct
44 Correct 3 ms 5076 KB Output is correct
45 Correct 3 ms 5076 KB Output is correct
46 Correct 3 ms 5076 KB Output is correct
47 Correct 3 ms 5076 KB Output is correct
48 Correct 3 ms 5144 KB Output is correct
49 Correct 3 ms 5076 KB Output is correct
50 Correct 3 ms 5076 KB Output is correct
51 Correct 3 ms 5036 KB Output is correct
52 Correct 3 ms 5084 KB Output is correct
53 Correct 4 ms 5076 KB Output is correct
54 Correct 3 ms 5036 KB Output is correct
55 Correct 3 ms 5076 KB Output is correct
56 Correct 3 ms 5076 KB Output is correct
57 Correct 3 ms 5204 KB Output is correct
58 Correct 3 ms 5076 KB Output is correct
59 Correct 3 ms 5076 KB Output is correct
60 Correct 3 ms 5076 KB Output is correct
61 Correct 3 ms 5076 KB Output is correct
62 Correct 4 ms 5164 KB Output is correct
63 Correct 3 ms 5076 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 3 ms 4988 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 2 ms 4948 KB Output is correct
21 Correct 2 ms 4948 KB Output is correct
22 Correct 3 ms 5076 KB Output is correct
23 Correct 3 ms 5076 KB Output is correct
24 Correct 3 ms 5036 KB Output is correct
25 Correct 3 ms 5032 KB Output is correct
26 Correct 3 ms 5036 KB Output is correct
27 Correct 3 ms 5076 KB Output is correct
28 Correct 3 ms 5076 KB Output is correct
29 Correct 3 ms 5204 KB Output is correct
30 Correct 3 ms 5088 KB Output is correct
31 Correct 3 ms 5076 KB Output is correct
32 Correct 4 ms 5168 KB Output is correct
33 Correct 3 ms 5076 KB Output is correct
34 Correct 4 ms 5076 KB Output is correct
35 Correct 3 ms 5032 KB Output is correct
36 Correct 3 ms 5032 KB Output is correct
37 Correct 3 ms 5036 KB Output is correct
38 Correct 3 ms 5032 KB Output is correct
39 Correct 3 ms 5164 KB Output is correct
40 Correct 3 ms 5076 KB Output is correct
41 Correct 3 ms 5076 KB Output is correct
42 Correct 3 ms 5076 KB Output is correct
43 Correct 3 ms 5076 KB Output is correct
44 Correct 3 ms 5076 KB Output is correct
45 Correct 3 ms 5076 KB Output is correct
46 Correct 3 ms 5076 KB Output is correct
47 Correct 3 ms 5076 KB Output is correct
48 Correct 3 ms 5144 KB Output is correct
49 Correct 3 ms 5076 KB Output is correct
50 Correct 3 ms 5076 KB Output is correct
51 Correct 3 ms 5036 KB Output is correct
52 Correct 3 ms 5084 KB Output is correct
53 Correct 4 ms 5076 KB Output is correct
54 Correct 3 ms 5036 KB Output is correct
55 Correct 3 ms 5076 KB Output is correct
56 Correct 3 ms 5076 KB Output is correct
57 Correct 3 ms 5204 KB Output is correct
58 Correct 3 ms 5076 KB Output is correct
59 Correct 3 ms 5076 KB Output is correct
60 Correct 3 ms 5076 KB Output is correct
61 Correct 3 ms 5076 KB Output is correct
62 Correct 4 ms 5164 KB Output is correct
63 Correct 3 ms 5076 KB Output is correct
64 Correct 75 ms 15136 KB Output is correct
65 Correct 70 ms 15160 KB Output is correct
66 Correct 80 ms 15200 KB Output is correct
67 Correct 64 ms 15128 KB Output is correct
68 Correct 74 ms 15144 KB Output is correct
69 Correct 64 ms 15176 KB Output is correct
70 Correct 96 ms 15200 KB Output is correct
71 Correct 78 ms 15148 KB Output is correct
72 Correct 80 ms 15204 KB Output is correct
73 Correct 124 ms 27688 KB Output is correct
74 Correct 93 ms 27704 KB Output is correct
75 Correct 67 ms 14988 KB Output is correct
76 Correct 63 ms 15056 KB Output is correct
77 Correct 90 ms 14980 KB Output is correct
78 Correct 68 ms 15032 KB Output is correct
79 Correct 71 ms 14980 KB Output is correct
80 Correct 66 ms 14984 KB Output is correct
81 Correct 65 ms 15428 KB Output is correct
82 Correct 71 ms 15300 KB Output is correct
83 Correct 83 ms 20248 KB Output is correct
84 Correct 79 ms 22416 KB Output is correct
85 Correct 83 ms 22028 KB Output is correct
86 Correct 66 ms 16544 KB Output is correct
87 Correct 73 ms 15920 KB Output is correct
88 Correct 95 ms 16332 KB Output is correct
89 Correct 66 ms 16408 KB Output is correct
90 Correct 65 ms 16220 KB Output is correct
91 Correct 69 ms 16408 KB Output is correct
92 Correct 65 ms 16744 KB Output is correct
93 Correct 67 ms 19036 KB Output is correct
94 Correct 76 ms 20888 KB Output is correct
95 Correct 77 ms 19524 KB Output is correct
96 Correct 86 ms 17780 KB Output is correct
97 Correct 68 ms 16204 KB Output is correct
98 Correct 79 ms 15688 KB Output is correct
99 Correct 64 ms 15544 KB Output is correct
100 Correct 69 ms 18704 KB Output is correct
101 Correct 67 ms 16700 KB Output is correct
102 Correct 96 ms 15912 KB Output is correct
103 Correct 83 ms 15768 KB Output is correct
104 Correct 55 ms 15296 KB Output is correct
105 Correct 95 ms 24608 KB Output is correct
106 Correct 55 ms 15936 KB Output is correct
107 Correct 48 ms 15860 KB Output is correct
108 Correct 95 ms 28552 KB Output is correct
109 Correct 50 ms 15208 KB Output is correct
110 Correct 121 ms 28888 KB Output is correct
111 Correct 68 ms 15008 KB Output is correct