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Submission #818537

# Submission time Handle Problem Language Result Execution time Memory
818537 2023-08-10T05:19:00 Z vjudge1 Power Plant (JOI20_power) C++17
100 / 100
 135 ms 28988 KB 
#include<bits/stdc++.h>

using namespace std;
using ll = long long;

const int N = 2e5 + 10;
vector<int> g[N];
int dp[N];
int n;
string s;
int res;
void dfs(int v, int p) {
    int sum = 0, mx = 0;
    for(int to : g[v]) {
        if(to == p) continue;
        dfs(to, v);
        mx = max(mx, dp[to]);
        sum += max(dp[to], 0);
    }
    dp[v] = max(s[v - 1] - '0', sum - (s[v - 1] - '0'));
    res = max(res, dp[v]);
    if(s[v - 1] == '1') 
        res = max(res, mx + 1);
}

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    cin >> n;
    for(int i = 1; i < n; i++) {
        int a, b;
        cin >> a >> b;
        g[a].push_back(b);
        g[b].push_back(a);
    }
    cin >> s;
    dfs(1, 1);
    // for(int i = 1; i <= n; i++) {
    //     cout << dp[i] << ' ';
    // }
    // cout << '\n';
    cout << res;
}

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 3 ms 4948 KB Output is correct
4 Correct 2 ms 5020 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 5028 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 2 ms 5020 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 2 ms 5016 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 2 ms 5020 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 3 ms 4948 KB Output is correct
4 Correct 2 ms 5020 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 5028 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 2 ms 5020 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 2 ms 5016 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 2 ms 5020 KB Output is correct
22 Correct 4 ms 5076 KB Output is correct
23 Correct 4 ms 5028 KB Output is correct
24 Correct 3 ms 5076 KB Output is correct
25 Correct 4 ms 5084 KB Output is correct
26 Correct 3 ms 5032 KB Output is correct
27 Correct 3 ms 5040 KB Output is correct
28 Correct 4 ms 5040 KB Output is correct
29 Correct 3 ms 5168 KB Output is correct
30 Correct 4 ms 5204 KB Output is correct
31 Correct 3 ms 5076 KB Output is correct
32 Correct 4 ms 5076 KB Output is correct
33 Correct 3 ms 5076 KB Output is correct
34 Correct 3 ms 5036 KB Output is correct
35 Correct 3 ms 5032 KB Output is correct
36 Correct 4 ms 5092 KB Output is correct
37 Correct 3 ms 5076 KB Output is correct
38 Correct 3 ms 5076 KB Output is correct
39 Correct 4 ms 5076 KB Output is correct
40 Correct 4 ms 5032 KB Output is correct
41 Correct 4 ms 5212 KB Output is correct
42 Correct 3 ms 5084 KB Output is correct
43 Correct 4 ms 5080 KB Output is correct
44 Correct 3 ms 5076 KB Output is correct
45 Correct 3 ms 5076 KB Output is correct
46 Correct 4 ms 5036 KB Output is correct
47 Correct 4 ms 5076 KB Output is correct
48 Correct 3 ms 5156 KB Output is correct
49 Correct 3 ms 5124 KB Output is correct
50 Correct 3 ms 5092 KB Output is correct
51 Correct 3 ms 5076 KB Output is correct
52 Correct 3 ms 5076 KB Output is correct
53 Correct 4 ms 5076 KB Output is correct
54 Correct 4 ms 5128 KB Output is correct
55 Correct 3 ms 5076 KB Output is correct
56 Correct 4 ms 5076 KB Output is correct
57 Correct 3 ms 5160 KB Output is correct
58 Correct 3 ms 5076 KB Output is correct
59 Correct 4 ms 5076 KB Output is correct
60 Correct 4 ms 5204 KB Output is correct
61 Correct 2 ms 5076 KB Output is correct
62 Correct 3 ms 5204 KB Output is correct
63 Correct 3 ms 5032 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 3 ms 4948 KB Output is correct
4 Correct 2 ms 5020 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 5028 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 2 ms 5020 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 2 ms 5016 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 2 ms 5020 KB Output is correct
22 Correct 4 ms 5076 KB Output is correct
23 Correct 4 ms 5028 KB Output is correct
24 Correct 3 ms 5076 KB Output is correct
25 Correct 4 ms 5084 KB Output is correct
26 Correct 3 ms 5032 KB Output is correct
27 Correct 3 ms 5040 KB Output is correct
28 Correct 4 ms 5040 KB Output is correct
29 Correct 3 ms 5168 KB Output is correct
30 Correct 4 ms 5204 KB Output is correct
31 Correct 3 ms 5076 KB Output is correct
32 Correct 4 ms 5076 KB Output is correct
33 Correct 3 ms 5076 KB Output is correct
34 Correct 3 ms 5036 KB Output is correct
35 Correct 3 ms 5032 KB Output is correct
36 Correct 4 ms 5092 KB Output is correct
37 Correct 3 ms 5076 KB Output is correct
38 Correct 3 ms 5076 KB Output is correct
39 Correct 4 ms 5076 KB Output is correct
40 Correct 4 ms 5032 KB Output is correct
41 Correct 4 ms 5212 KB Output is correct
42 Correct 3 ms 5084 KB Output is correct
43 Correct 4 ms 5080 KB Output is correct
44 Correct 3 ms 5076 KB Output is correct
45 Correct 3 ms 5076 KB Output is correct
46 Correct 4 ms 5036 KB Output is correct
47 Correct 4 ms 5076 KB Output is correct
48 Correct 3 ms 5156 KB Output is correct
49 Correct 3 ms 5124 KB Output is correct
50 Correct 3 ms 5092 KB Output is correct
51 Correct 3 ms 5076 KB Output is correct
52 Correct 3 ms 5076 KB Output is correct
53 Correct 4 ms 5076 KB Output is correct
54 Correct 4 ms 5128 KB Output is correct
55 Correct 3 ms 5076 KB Output is correct
56 Correct 4 ms 5076 KB Output is correct
57 Correct 3 ms 5160 KB Output is correct
58 Correct 3 ms 5076 KB Output is correct
59 Correct 4 ms 5076 KB Output is correct
60 Correct 4 ms 5204 KB Output is correct
61 Correct 2 ms 5076 KB Output is correct
62 Correct 3 ms 5204 KB Output is correct
63 Correct 3 ms 5032 KB Output is correct
64 Correct 117 ms 12616 KB Output is correct
65 Correct 82 ms 12584 KB Output is correct
66 Correct 123 ms 12616 KB Output is correct
67 Correct 114 ms 12668 KB Output is correct
68 Correct 84 ms 12528 KB Output is correct
69 Correct 79 ms 12580 KB Output is correct
70 Correct 90 ms 12604 KB Output is correct
71 Correct 65 ms 12500 KB Output is correct
72 Correct 108 ms 12564 KB Output is correct
73 Correct 85 ms 27704 KB Output is correct
74 Correct 120 ms 27616 KB Output is correct
75 Correct 93 ms 12488 KB Output is correct
76 Correct 120 ms 12476 KB Output is correct
77 Correct 107 ms 12504 KB Output is correct
78 Correct 92 ms 12504 KB Output is correct
79 Correct 75 ms 12492 KB Output is correct
80 Correct 114 ms 12424 KB Output is correct
81 Correct 63 ms 12952 KB Output is correct
82 Correct 73 ms 12672 KB Output is correct
83 Correct 103 ms 18644 KB Output is correct
84 Correct 135 ms 21308 KB Output is correct
85 Correct 109 ms 20896 KB Output is correct
86 Correct 92 ms 14168 KB Output is correct
87 Correct 79 ms 13432 KB Output is correct
88 Correct 64 ms 13844 KB Output is correct
89 Correct 92 ms 13976 KB Output is correct
90 Correct 85 ms 13640 KB Output is correct
91 Correct 76 ms 14000 KB Output is correct
92 Correct 109 ms 14372 KB Output is correct
93 Correct 71 ms 17352 KB Output is correct
94 Correct 60 ms 19544 KB Output is correct
95 Correct 95 ms 17732 KB Output is correct
96 Correct 110 ms 15664 KB Output is correct
97 Correct 97 ms 13792 KB Output is correct
98 Correct 66 ms 13112 KB Output is correct
99 Correct 84 ms 12876 KB Output is correct
100 Correct 109 ms 16744 KB Output is correct
101 Correct 71 ms 14316 KB Output is correct
102 Correct 73 ms 13368 KB Output is correct
103 Correct 104 ms 13108 KB Output is correct
104 Correct 85 ms 13328 KB Output is correct
105 Correct 103 ms 23836 KB Output is correct
106 Correct 49 ms 13364 KB Output is correct
107 Correct 43 ms 13376 KB Output is correct
108 Correct 92 ms 28588 KB Output is correct
109 Correct 58 ms 13388 KB Output is correct
110 Correct 109 ms 28988 KB Output is correct
111 Correct 60 ms 12492 KB Output is correct