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답안 #465496

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
465496 2021-08-16T08:47:06 Z MKutayBozkurt Power Plant (JOI20_power) C++17
100 / 100
 206 ms 36420 KB 
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

#define int long long

int32_t main() {
  ios::sync_with_stdio(0); cin.tie(0);
  int n; cin >> n;
  vector<vector<int>> g(n);
  for (int i = 0; i < n - 1; i++) {
    int x, y; cin >> x >> y, x--, y--;
    g[x].emplace_back(y);
    g[y].emplace_back(x);
  }
  vector<int> a(n);
  for (int i = 0; i < n; i++) {
    char x; cin >> x;
    a[i] = x - '0';
  }

  vector<int> dp(n);

  int ans = 0;

  function<void(int, int)> dfs = [&](int node, int parent) {
    dp[node] = -a[node];
    for (auto next : g[node]) {
      if (next == parent) continue;
      dfs(next, node);
      ans = max(ans, dp[next] + a[node]);
      dp[node] += dp[next];
    }
    dp[node] = max(dp[node], a[node]);
    ans = max(ans, dp[node]);
  };
  dfs(0, -1);
  cout << ans << '\n';
}

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 308 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct

Subtask #2
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 308 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 2 ms 460 KB Output is correct
23 Correct 2 ms 460 KB Output is correct
24 Correct 1 ms 460 KB Output is correct
25 Correct 2 ms 460 KB Output is correct
26 Correct 1 ms 460 KB Output is correct
27 Correct 1 ms 460 KB Output is correct
28 Correct 1 ms 460 KB Output is correct
29 Correct 1 ms 588 KB Output is correct
30 Correct 1 ms 588 KB Output is correct
31 Correct 1 ms 460 KB Output is correct
32 Correct 2 ms 452 KB Output is correct
33 Correct 2 ms 460 KB Output is correct
34 Correct 2 ms 460 KB Output is correct
35 Correct 1 ms 460 KB Output is correct
36 Correct 1 ms 460 KB Output is correct
37 Correct 1 ms 460 KB Output is correct
38 Correct 1 ms 460 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 1 ms 460 KB Output is correct
41 Correct 1 ms 460 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 1 ms 460 KB Output is correct
44 Correct 1 ms 460 KB Output is correct
45 Correct 1 ms 472 KB Output is correct
46 Correct 1 ms 460 KB Output is correct
47 Correct 2 ms 460 KB Output is correct
48 Correct 1 ms 588 KB Output is correct
49 Correct 2 ms 588 KB Output is correct
50 Correct 1 ms 460 KB Output is correct
51 Correct 1 ms 460 KB Output is correct
52 Correct 1 ms 460 KB Output is correct
53 Correct 1 ms 460 KB Output is correct
54 Correct 1 ms 460 KB Output is correct
55 Correct 1 ms 460 KB Output is correct
56 Correct 1 ms 456 KB Output is correct
57 Correct 1 ms 588 KB Output is correct
58 Correct 1 ms 576 KB Output is correct
59 Correct 1 ms 460 KB Output is correct
60 Correct 1 ms 576 KB Output is correct
61 Correct 1 ms 460 KB Output is correct
62 Correct 1 ms 580 KB Output is correct
63 Correct 1 ms 460 KB Output is correct

Subtask #3
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 308 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 2 ms 460 KB Output is correct
23 Correct 2 ms 460 KB Output is correct
24 Correct 1 ms 460 KB Output is correct
25 Correct 2 ms 460 KB Output is correct
26 Correct 1 ms 460 KB Output is correct
27 Correct 1 ms 460 KB Output is correct
28 Correct 1 ms 460 KB Output is correct
29 Correct 1 ms 588 KB Output is correct
30 Correct 1 ms 588 KB Output is correct
31 Correct 1 ms 460 KB Output is correct
32 Correct 2 ms 452 KB Output is correct
33 Correct 2 ms 460 KB Output is correct
34 Correct 2 ms 460 KB Output is correct
35 Correct 1 ms 460 KB Output is correct
36 Correct 1 ms 460 KB Output is correct
37 Correct 1 ms 460 KB Output is correct
38 Correct 1 ms 460 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 1 ms 460 KB Output is correct
41 Correct 1 ms 460 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 1 ms 460 KB Output is correct
44 Correct 1 ms 460 KB Output is correct
45 Correct 1 ms 472 KB Output is correct
46 Correct 1 ms 460 KB Output is correct
47 Correct 2 ms 460 KB Output is correct
48 Correct 1 ms 588 KB Output is correct
49 Correct 2 ms 588 KB Output is correct
50 Correct 1 ms 460 KB Output is correct
51 Correct 1 ms 460 KB Output is correct
52 Correct 1 ms 460 KB Output is correct
53 Correct 1 ms 460 KB Output is correct
54 Correct 1 ms 460 KB Output is correct
55 Correct 1 ms 460 KB Output is correct
56 Correct 1 ms 456 KB Output is correct
57 Correct 1 ms 588 KB Output is correct
58 Correct 1 ms 576 KB Output is correct
59 Correct 1 ms 460 KB Output is correct
60 Correct 1 ms 576 KB Output is correct
61 Correct 1 ms 460 KB Output is correct
62 Correct 1 ms 580 KB Output is correct
63 Correct 1 ms 460 KB Output is correct
64 Correct 188 ms 18156 KB Output is correct
65 Correct 159 ms 18116 KB Output is correct
66 Correct 169 ms 18172 KB Output is correct
67 Correct 201 ms 18208 KB Output is correct
68 Correct 196 ms 18212 KB Output is correct
69 Correct 170 ms 18116 KB Output is correct
70 Correct 164 ms 18096 KB Output is correct
71 Correct 206 ms 18152 KB Output is correct
72 Correct 195 ms 18104 KB Output is correct
73 Correct 199 ms 34924 KB Output is correct
74 Correct 191 ms 34804 KB Output is correct
75 Correct 178 ms 19356 KB Output is correct
76 Correct 162 ms 19400 KB Output is correct
77 Correct 173 ms 18112 KB Output is correct
78 Correct 159 ms 18168 KB Output is correct
79 Correct 193 ms 18076 KB Output is correct
80 Correct 167 ms 18140 KB Output is correct
81 Correct 173 ms 18220 KB Output is correct
82 Correct 180 ms 18112 KB Output is correct
83 Correct 167 ms 25276 KB Output is correct
84 Correct 196 ms 28240 KB Output is correct
85 Correct 196 ms 27884 KB Output is correct
86 Correct 161 ms 20144 KB Output is correct
87 Correct 170 ms 19264 KB Output is correct
88 Correct 148 ms 19304 KB Output is correct
89 Correct 148 ms 19256 KB Output is correct
90 Correct 147 ms 19112 KB Output is correct
91 Correct 174 ms 19356 KB Output is correct
92 Correct 155 ms 19784 KB Output is correct
93 Correct 133 ms 23020 KB Output is correct
94 Correct 171 ms 25396 KB Output is correct
95 Correct 157 ms 23600 KB Output is correct
96 Correct 176 ms 21148 KB Output is correct
97 Correct 156 ms 19052 KB Output is correct
98 Correct 140 ms 18372 KB Output is correct
99 Correct 143 ms 18268 KB Output is correct
100 Correct 187 ms 22368 KB Output is correct
101 Correct 159 ms 19512 KB Output is correct
102 Correct 147 ms 18580 KB Output is correct
103 Correct 147 ms 18452 KB Output is correct
104 Correct 110 ms 18844 KB Output is correct
105 Correct 199 ms 30352 KB Output is correct
106 Correct 107 ms 18536 KB Output is correct
107 Correct 110 ms 18496 KB Output is correct
108 Correct 199 ms 35908 KB Output is correct
109 Correct 96 ms 18736 KB Output is correct
110 Correct 177 ms 36420 KB Output is correct
111 Correct 141 ms 18116 KB Output is correct