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Submission #532750

# Submission time Handle Problem Language Result Execution time Memory
532750 2022-03-03T20:10:48 Z Alex_tz307 Power Plant (JOI20_power) C++17
100 / 100
 183 ms 28792 KB 
#include <bits/stdc++.h>

using namespace std;

const int kN = 2e5;
vector<int> g[1 + kN];
string s;
int ans, dp[1 + kN];

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

void dfs(int u, int par) {
  int best = 0, sum = 0;
  for (int v : g[u]) {
    if (v != par) {
      dfs(v, u);
      maxSelf(best, dp[v]);
      sum += dp[v];
    }
  }
  maxSelf(ans, max(best + (s[u] - '0'), sum - (s[u] - '0')));
  dp[u] = max(s[u] - '0', sum - (s[u] - '0'));
}

void testCase() {
  int n;
  cin >> n;
  for (int i = 1; i < n; ++i) {
    int u, v;
    cin >> u >> v;
    g[u].emplace_back(v);
    g[v].emplace_back(u);
  }
  cin >> s;
  s = '$' + s;
  dfs(1, 0);
  cout << ans << '\n';
}

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(nullptr);
  int tests = 1;
  for (int tc = 0; tc < tests; ++tc) {
    testCase();
  }
  return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 2 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 3 ms 5016 KB Output is correct
6 Correct 3 ms 5012 KB Output is correct
7 Correct 3 ms 5012 KB Output is correct
8 Correct 2 ms 5016 KB Output is correct
9 Correct 2 ms 5016 KB Output is correct
10 Correct 3 ms 5012 KB Output is correct
11 Correct 3 ms 5020 KB Output is correct
12 Correct 2 ms 4940 KB Output is correct
13 Correct 3 ms 4940 KB Output is correct
14 Correct 3 ms 5068 KB Output is correct
15 Correct 3 ms 4956 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 3 ms 4940 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 3 ms 5016 KB Output is correct
20 Correct 3 ms 4940 KB Output is correct
21 Correct 3 ms 4940 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 2 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 3 ms 5016 KB Output is correct
6 Correct 3 ms 5012 KB Output is correct
7 Correct 3 ms 5012 KB Output is correct
8 Correct 2 ms 5016 KB Output is correct
9 Correct 2 ms 5016 KB Output is correct
10 Correct 3 ms 5012 KB Output is correct
11 Correct 3 ms 5020 KB Output is correct
12 Correct 2 ms 4940 KB Output is correct
13 Correct 3 ms 4940 KB Output is correct
14 Correct 3 ms 5068 KB Output is correct
15 Correct 3 ms 4956 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 3 ms 4940 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 3 ms 5016 KB Output is correct
20 Correct 3 ms 4940 KB Output is correct
21 Correct 3 ms 4940 KB Output is correct
22 Correct 3 ms 5068 KB Output is correct
23 Correct 4 ms 5068 KB Output is correct
24 Correct 3 ms 5032 KB Output is correct
25 Correct 3 ms 5068 KB Output is correct
26 Correct 3 ms 5068 KB Output is correct
27 Correct 4 ms 5068 KB Output is correct
28 Correct 4 ms 5032 KB Output is correct
29 Correct 4 ms 5196 KB Output is correct
30 Correct 4 ms 5196 KB Output is correct
31 Correct 4 ms 5068 KB Output is correct
32 Correct 4 ms 5068 KB Output is correct
33 Correct 4 ms 5068 KB Output is correct
34 Correct 4 ms 5068 KB Output is correct
35 Correct 4 ms 5056 KB Output is correct
36 Correct 4 ms 5080 KB Output is correct
37 Correct 3 ms 5028 KB Output is correct
38 Correct 3 ms 5068 KB Output is correct
39 Correct 3 ms 5068 KB Output is correct
40 Correct 4 ms 5028 KB Output is correct
41 Correct 4 ms 5076 KB Output is correct
42 Correct 3 ms 5068 KB Output is correct
43 Correct 3 ms 5068 KB Output is correct
44 Correct 3 ms 5028 KB Output is correct
45 Correct 4 ms 5028 KB Output is correct
46 Correct 3 ms 5068 KB Output is correct
47 Correct 3 ms 5128 KB Output is correct
48 Correct 5 ms 5068 KB Output is correct
49 Correct 4 ms 5152 KB Output is correct
50 Correct 3 ms 5092 KB Output is correct
51 Correct 4 ms 5048 KB Output is correct
52 Correct 5 ms 5068 KB Output is correct
53 Correct 5 ms 5068 KB Output is correct
54 Correct 3 ms 5068 KB Output is correct
55 Correct 4 ms 5068 KB Output is correct
56 Correct 3 ms 5068 KB Output is correct
57 Correct 4 ms 5196 KB Output is correct
58 Correct 3 ms 5068 KB Output is correct
59 Correct 3 ms 5068 KB Output is correct
60 Correct 3 ms 5068 KB Output is correct
61 Correct 3 ms 5068 KB Output is correct
62 Correct 4 ms 5196 KB Output is correct
63 Correct 4 ms 5028 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 2 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 3 ms 5016 KB Output is correct
6 Correct 3 ms 5012 KB Output is correct
7 Correct 3 ms 5012 KB Output is correct
8 Correct 2 ms 5016 KB Output is correct
9 Correct 2 ms 5016 KB Output is correct
10 Correct 3 ms 5012 KB Output is correct
11 Correct 3 ms 5020 KB Output is correct
12 Correct 2 ms 4940 KB Output is correct
13 Correct 3 ms 4940 KB Output is correct
14 Correct 3 ms 5068 KB Output is correct
15 Correct 3 ms 4956 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 3 ms 4940 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 3 ms 5016 KB Output is correct
20 Correct 3 ms 4940 KB Output is correct
21 Correct 3 ms 4940 KB Output is correct
22 Correct 3 ms 5068 KB Output is correct
23 Correct 4 ms 5068 KB Output is correct
24 Correct 3 ms 5032 KB Output is correct
25 Correct 3 ms 5068 KB Output is correct
26 Correct 3 ms 5068 KB Output is correct
27 Correct 4 ms 5068 KB Output is correct
28 Correct 4 ms 5032 KB Output is correct
29 Correct 4 ms 5196 KB Output is correct
30 Correct 4 ms 5196 KB Output is correct
31 Correct 4 ms 5068 KB Output is correct
32 Correct 4 ms 5068 KB Output is correct
33 Correct 4 ms 5068 KB Output is correct
34 Correct 4 ms 5068 KB Output is correct
35 Correct 4 ms 5056 KB Output is correct
36 Correct 4 ms 5080 KB Output is correct
37 Correct 3 ms 5028 KB Output is correct
38 Correct 3 ms 5068 KB Output is correct
39 Correct 3 ms 5068 KB Output is correct
40 Correct 4 ms 5028 KB Output is correct
41 Correct 4 ms 5076 KB Output is correct
42 Correct 3 ms 5068 KB Output is correct
43 Correct 3 ms 5068 KB Output is correct
44 Correct 3 ms 5028 KB Output is correct
45 Correct 4 ms 5028 KB Output is correct
46 Correct 3 ms 5068 KB Output is correct
47 Correct 3 ms 5128 KB Output is correct
48 Correct 5 ms 5068 KB Output is correct
49 Correct 4 ms 5152 KB Output is correct
50 Correct 3 ms 5092 KB Output is correct
51 Correct 4 ms 5048 KB Output is correct
52 Correct 5 ms 5068 KB Output is correct
53 Correct 5 ms 5068 KB Output is correct
54 Correct 3 ms 5068 KB Output is correct
55 Correct 4 ms 5068 KB Output is correct
56 Correct 3 ms 5068 KB Output is correct
57 Correct 4 ms 5196 KB Output is correct
58 Correct 3 ms 5068 KB Output is correct
59 Correct 3 ms 5068 KB Output is correct
60 Correct 3 ms 5068 KB Output is correct
61 Correct 3 ms 5068 KB Output is correct
62 Correct 4 ms 5196 KB Output is correct
63 Correct 4 ms 5028 KB Output is correct
64 Correct 140 ms 15116 KB Output is correct
65 Correct 111 ms 15148 KB Output is correct
66 Correct 109 ms 15192 KB Output is correct
67 Correct 122 ms 15100 KB Output is correct
68 Correct 129 ms 15188 KB Output is correct
69 Correct 116 ms 15096 KB Output is correct
70 Correct 133 ms 15172 KB Output is correct
71 Correct 150 ms 15148 KB Output is correct
72 Correct 113 ms 15160 KB Output is correct
73 Correct 165 ms 27800 KB Output is correct
74 Correct 183 ms 27732 KB Output is correct
75 Correct 114 ms 15040 KB Output is correct
76 Correct 107 ms 15040 KB Output is correct
77 Correct 120 ms 15036 KB Output is correct
78 Correct 118 ms 14976 KB Output is correct
79 Correct 122 ms 15020 KB Output is correct
80 Correct 111 ms 14960 KB Output is correct
81 Correct 101 ms 15404 KB Output is correct
82 Correct 157 ms 15428 KB Output is correct
83 Correct 123 ms 20272 KB Output is correct
84 Correct 115 ms 22348 KB Output is correct
85 Correct 116 ms 21984 KB Output is correct
86 Correct 134 ms 16532 KB Output is correct
87 Correct 110 ms 15856 KB Output is correct
88 Correct 103 ms 16364 KB Output is correct
89 Correct 98 ms 16420 KB Output is correct
90 Correct 118 ms 16268 KB Output is correct
91 Correct 125 ms 16344 KB Output is correct
92 Correct 130 ms 16756 KB Output is correct
93 Correct 110 ms 19060 KB Output is correct
94 Correct 114 ms 20844 KB Output is correct
95 Correct 118 ms 19488 KB Output is correct
96 Correct 105 ms 17716 KB Output is correct
97 Correct 109 ms 16152 KB Output is correct
98 Correct 120 ms 15632 KB Output is correct
99 Correct 135 ms 15508 KB Output is correct
100 Correct 110 ms 18716 KB Output is correct
101 Correct 106 ms 16644 KB Output is correct
102 Correct 104 ms 15896 KB Output is correct
103 Correct 134 ms 15760 KB Output is correct
104 Correct 68 ms 16056 KB Output is correct
105 Correct 138 ms 24512 KB Output is correct
106 Correct 63 ms 15928 KB Output is correct
107 Correct 64 ms 15828 KB Output is correct
108 Correct 134 ms 28512 KB Output is correct
109 Correct 68 ms 15992 KB Output is correct
110 Correct 150 ms 28792 KB Output is correct
111 Correct 103 ms 15004 KB Output is correct