oj.uz

Submission #293428

# Submission time Handle Problem Language Result Execution time Memory
293428 2020-09-08T05:04:04 Z rama_pang Power Plant (JOI20_power) C++14
100 / 100
 220 ms 26196 KB 
#include <bits/stdc++.h>
using namespace std;

const int MAXN = 200005;

int N;
string S;
vector<int> adj[MAXN];

int ans = 0;
int dp[MAXN];

void Dfs(int u, int p) {
  int max_subtree = 0;
  int sum_subtree = 0;
  for (auto v : adj[u]) if (v != p) {
    Dfs(v, u);
    max_subtree = max(max_subtree, dp[v]);
    sum_subtree += dp[v];
  }
  max_subtree += (S[u] - '0');
  sum_subtree -= (S[u] - '0');
  sum_subtree = max(sum_subtree, (S[u] - '0'));
  ans = max({ans, max_subtree, sum_subtree});
  dp[u] = max(max_subtree - 2 * (S[u] - '0'), sum_subtree);
}

int main() {
  ios::sync_with_stdio(0);
  cin.tie(0), cout.tie(0);

  cin >> N;
  for (int i = 1; i < N; i++) {
    int u, v;
    cin >> u >> v;
    u--, v--;
    adj[u].emplace_back(v);
    adj[v].emplace_back(u);
  }
  cin >> S;
  Dfs(0, -1);
  cout << ans << "\n";
  return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Correct 4 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 4 ms 4992 KB Output is correct
6 Correct 4 ms 4992 KB Output is correct
7 Correct 4 ms 4992 KB Output is correct
8 Correct 5 ms 4992 KB Output is correct
9 Correct 4 ms 4992 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 4 ms 4992 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 3 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 4 ms 4992 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 4 ms 4992 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Correct 4 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 4 ms 4992 KB Output is correct
6 Correct 4 ms 4992 KB Output is correct
7 Correct 4 ms 4992 KB Output is correct
8 Correct 5 ms 4992 KB Output is correct
9 Correct 4 ms 4992 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 4 ms 4992 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 3 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 4 ms 4992 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 4 ms 4992 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 6 ms 5120 KB Output is correct
23 Correct 5 ms 5120 KB Output is correct
24 Correct 4 ms 5120 KB Output is correct
25 Correct 6 ms 5120 KB Output is correct
26 Correct 6 ms 5120 KB Output is correct
27 Correct 4 ms 5120 KB Output is correct
28 Correct 6 ms 5120 KB Output is correct
29 Correct 4 ms 5248 KB Output is correct
30 Correct 4 ms 5248 KB Output is correct
31 Correct 5 ms 5120 KB Output is correct
32 Correct 5 ms 5120 KB Output is correct
33 Correct 4 ms 5120 KB Output is correct
34 Correct 4 ms 5120 KB Output is correct
35 Correct 4 ms 5120 KB Output is correct
36 Correct 5 ms 5120 KB Output is correct
37 Correct 4 ms 5120 KB Output is correct
38 Correct 4 ms 5120 KB Output is correct
39 Correct 4 ms 5120 KB Output is correct
40 Correct 4 ms 5120 KB Output is correct
41 Correct 4 ms 5120 KB Output is correct
42 Correct 5 ms 5120 KB Output is correct
43 Correct 4 ms 5120 KB Output is correct
44 Correct 4 ms 5120 KB Output is correct
45 Correct 4 ms 5120 KB Output is correct
46 Correct 4 ms 5120 KB Output is correct
47 Correct 4 ms 5120 KB Output is correct
48 Correct 6 ms 5120 KB Output is correct
49 Correct 6 ms 5120 KB Output is correct
50 Correct 7 ms 5120 KB Output is correct
51 Correct 4 ms 5120 KB Output is correct
52 Correct 5 ms 5120 KB Output is correct
53 Correct 4 ms 5120 KB Output is correct
54 Correct 5 ms 5120 KB Output is correct
55 Correct 5 ms 5120 KB Output is correct
56 Correct 4 ms 5120 KB Output is correct
57 Correct 5 ms 5248 KB Output is correct
58 Correct 4 ms 5120 KB Output is correct
59 Correct 4 ms 5120 KB Output is correct
60 Correct 4 ms 5120 KB Output is correct
61 Correct 4 ms 5120 KB Output is correct
62 Correct 5 ms 5248 KB Output is correct
63 Correct 5 ms 5120 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Correct 4 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 4 ms 4992 KB Output is correct
6 Correct 4 ms 4992 KB Output is correct
7 Correct 4 ms 4992 KB Output is correct
8 Correct 5 ms 4992 KB Output is correct
9 Correct 4 ms 4992 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 4 ms 4992 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 3 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 4 ms 4992 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 4 ms 4992 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 6 ms 5120 KB Output is correct
23 Correct 5 ms 5120 KB Output is correct
24 Correct 4 ms 5120 KB Output is correct
25 Correct 6 ms 5120 KB Output is correct
26 Correct 6 ms 5120 KB Output is correct
27 Correct 4 ms 5120 KB Output is correct
28 Correct 6 ms 5120 KB Output is correct
29 Correct 4 ms 5248 KB Output is correct
30 Correct 4 ms 5248 KB Output is correct
31 Correct 5 ms 5120 KB Output is correct
32 Correct 5 ms 5120 KB Output is correct
33 Correct 4 ms 5120 KB Output is correct
34 Correct 4 ms 5120 KB Output is correct
35 Correct 4 ms 5120 KB Output is correct
36 Correct 5 ms 5120 KB Output is correct
37 Correct 4 ms 5120 KB Output is correct
38 Correct 4 ms 5120 KB Output is correct
39 Correct 4 ms 5120 KB Output is correct
40 Correct 4 ms 5120 KB Output is correct
41 Correct 4 ms 5120 KB Output is correct
42 Correct 5 ms 5120 KB Output is correct
43 Correct 4 ms 5120 KB Output is correct
44 Correct 4 ms 5120 KB Output is correct
45 Correct 4 ms 5120 KB Output is correct
46 Correct 4 ms 5120 KB Output is correct
47 Correct 4 ms 5120 KB Output is correct
48 Correct 6 ms 5120 KB Output is correct
49 Correct 6 ms 5120 KB Output is correct
50 Correct 7 ms 5120 KB Output is correct
51 Correct 4 ms 5120 KB Output is correct
52 Correct 5 ms 5120 KB Output is correct
53 Correct 4 ms 5120 KB Output is correct
54 Correct 5 ms 5120 KB Output is correct
55 Correct 5 ms 5120 KB Output is correct
56 Correct 4 ms 5120 KB Output is correct
57 Correct 5 ms 5248 KB Output is correct
58 Correct 4 ms 5120 KB Output is correct
59 Correct 4 ms 5120 KB Output is correct
60 Correct 4 ms 5120 KB Output is correct
61 Correct 4 ms 5120 KB Output is correct
62 Correct 5 ms 5248 KB Output is correct
63 Correct 5 ms 5120 KB Output is correct
64 Correct 192 ms 12476 KB Output is correct
65 Correct 200 ms 12508 KB Output is correct
66 Correct 192 ms 12536 KB Output is correct
67 Correct 184 ms 12552 KB Output is correct
68 Correct 187 ms 12576 KB Output is correct
69 Correct 199 ms 12568 KB Output is correct
70 Correct 186 ms 12512 KB Output is correct
71 Correct 182 ms 12644 KB Output is correct
72 Correct 184 ms 12468 KB Output is correct
73 Correct 211 ms 25144 KB Output is correct
74 Correct 205 ms 25016 KB Output is correct
75 Correct 173 ms 12344 KB Output is correct
76 Correct 177 ms 12448 KB Output is correct
77 Correct 215 ms 12400 KB Output is correct
78 Correct 185 ms 12388 KB Output is correct
79 Correct 184 ms 12352 KB Output is correct
80 Correct 185 ms 12472 KB Output is correct
81 Correct 154 ms 12916 KB Output is correct
82 Correct 173 ms 12660 KB Output is correct
83 Correct 220 ms 17596 KB Output is correct
84 Correct 189 ms 19784 KB Output is correct
85 Correct 187 ms 19396 KB Output is correct
86 Correct 178 ms 13880 KB Output is correct
87 Correct 178 ms 13368 KB Output is correct
88 Correct 166 ms 13812 KB Output is correct
89 Correct 163 ms 13768 KB Output is correct
90 Correct 177 ms 13468 KB Output is correct
91 Correct 172 ms 13724 KB Output is correct
92 Correct 197 ms 14120 KB Output is correct
93 Correct 169 ms 16644 KB Output is correct
94 Correct 163 ms 18288 KB Output is correct
95 Correct 145 ms 16900 KB Output is correct
96 Correct 170 ms 15140 KB Output is correct
97 Correct 159 ms 13600 KB Output is correct
98 Correct 157 ms 13032 KB Output is correct
99 Correct 161 ms 12852 KB Output is correct
100 Correct 149 ms 16036 KB Output is correct
101 Correct 157 ms 14004 KB Output is correct
102 Correct 149 ms 13316 KB Output is correct
103 Correct 162 ms 13144 KB Output is correct
104 Correct 110 ms 13292 KB Output is correct
105 Correct 183 ms 21944 KB Output is correct
106 Correct 107 ms 13420 KB Output is correct
107 Correct 108 ms 13296 KB Output is correct
108 Correct 190 ms 25912 KB Output is correct
109 Correct 107 ms 13292 KB Output is correct
110 Correct 186 ms 26196 KB Output is correct
111 Correct 163 ms 12360 KB Output is correct