oj.uz

Submission #502469

# Submission time Handle Problem Language Result Execution time Memory
502469 2022-01-06T05:09:43 Z tengiz05 Power Plant (JOI20_power) C++17
47 / 100
 1500 ms 15988 KB 
#include <bits/stdc++.h>

using i64 = long long;

constexpr int N = 200000;
int n;
std::vector<int> e[N];
int a[N], dp[N];
void dfs(int u, int p) {
    int sum = 0;
    for (int v : e[u]) {
        if (v != p) {
            dfs(v, u);
            sum += dp[v];
        }
    }
    dp[u] = std::max(a[u], sum - a[u]); 
}

int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    
    std::cin >> n;
    
    for (int i = 0; i < n - 1; i++) {
        int u, v;
        std::cin >> u >> v;
        u--;
        v--;
        e[u].push_back(v);
        e[v].push_back(u);
    }
    
    std::string S;
    std::cin >> S;
    for (int i = 0; i < n; i++) {
        a[i] = S[i] - '0';
    }
    
    int ans = 0;
    
    for (int i = 0; i < n; i++) {
        for (int j : e[i]) {
            ans = std::max(ans, a[i] + a[j]);
        }
    }
    
    for (int i = 0; i < n; i++) {
        dfs(i, -1);
        ans = std::max(ans, dp[i]);
    }
    
    std::cout << ans << "\n";
        
    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4940 KB Output is correct
2 Correct 2 ms 4940 KB Output is correct
3 Correct 2 ms 4940 KB Output is correct
4 Correct 2 ms 4940 KB Output is correct
5 Correct 2 ms 4940 KB Output is correct
6 Correct 2 ms 4940 KB Output is correct
7 Correct 2 ms 4940 KB Output is correct
8 Correct 2 ms 4940 KB Output is correct
9 Correct 2 ms 4940 KB Output is correct
10 Correct 2 ms 5020 KB Output is correct
11 Correct 2 ms 4928 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 4940 KB Output is correct
15 Correct 2 ms 4940 KB Output is correct
16 Correct 3 ms 5016 KB Output is correct
17 Correct 3 ms 4940 KB Output is correct
18 Correct 2 ms 4940 KB Output is correct
19 Correct 3 ms 5068 KB Output is correct
20 Correct 3 ms 4940 KB Output is correct
21 Correct 2 ms 4940 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4940 KB Output is correct
2 Correct 2 ms 4940 KB Output is correct
3 Correct 2 ms 4940 KB Output is correct
4 Correct 2 ms 4940 KB Output is correct
5 Correct 2 ms 4940 KB Output is correct
6 Correct 2 ms 4940 KB Output is correct
7 Correct 2 ms 4940 KB Output is correct
8 Correct 2 ms 4940 KB Output is correct
9 Correct 2 ms 4940 KB Output is correct
10 Correct 2 ms 5020 KB Output is correct
11 Correct 2 ms 4928 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 4940 KB Output is correct
15 Correct 2 ms 4940 KB Output is correct
16 Correct 3 ms 5016 KB Output is correct
17 Correct 3 ms 4940 KB Output is correct
18 Correct 2 ms 4940 KB Output is correct
19 Correct 3 ms 5068 KB Output is correct
20 Correct 3 ms 4940 KB Output is correct
21 Correct 2 ms 4940 KB Output is correct
22 Correct 61 ms 5108 KB Output is correct
23 Correct 62 ms 5068 KB Output is correct
24 Correct 62 ms 5108 KB Output is correct
25 Correct 62 ms 5068 KB Output is correct
26 Correct 61 ms 5068 KB Output is correct
27 Correct 64 ms 5060 KB Output is correct
28 Correct 63 ms 5032 KB Output is correct
29 Correct 76 ms 5160 KB Output is correct
30 Correct 77 ms 5252 KB Output is correct
31 Correct 53 ms 5068 KB Output is correct
32 Correct 54 ms 5068 KB Output is correct
33 Correct 65 ms 5104 KB Output is correct
34 Correct 63 ms 5020 KB Output is correct
35 Correct 64 ms 5104 KB Output is correct
36 Correct 65 ms 5104 KB Output is correct
37 Correct 51 ms 5108 KB Output is correct
38 Correct 58 ms 5036 KB Output is correct
39 Correct 67 ms 5068 KB Output is correct
40 Correct 69 ms 5196 KB Output is correct
41 Correct 72 ms 5176 KB Output is correct
42 Correct 65 ms 5136 KB Output is correct
43 Correct 66 ms 5068 KB Output is correct
44 Correct 53 ms 5148 KB Output is correct
45 Correct 53 ms 5068 KB Output is correct
46 Correct 54 ms 5152 KB Output is correct
47 Correct 52 ms 5068 KB Output is correct
48 Correct 53 ms 5180 KB Output is correct
49 Correct 51 ms 5204 KB Output is correct
50 Correct 52 ms 5160 KB Output is correct
51 Correct 52 ms 5144 KB Output is correct
52 Correct 56 ms 5068 KB Output is correct
53 Correct 53 ms 5068 KB Output is correct
54 Correct 53 ms 5040 KB Output is correct
55 Correct 58 ms 5124 KB Output is correct
56 Correct 33 ms 5188 KB Output is correct
57 Correct 77 ms 5256 KB Output is correct
58 Correct 27 ms 5068 KB Output is correct
59 Correct 27 ms 5144 KB Output is correct
60 Correct 76 ms 5196 KB Output is correct
61 Correct 27 ms 5068 KB Output is correct
62 Correct 77 ms 5256 KB Output is correct
63 Correct 48 ms 5068 KB Output is correct

Subtask #3
0.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4940 KB Output is correct
2 Correct 2 ms 4940 KB Output is correct
3 Correct 2 ms 4940 KB Output is correct
4 Correct 2 ms 4940 KB Output is correct
5 Correct 2 ms 4940 KB Output is correct
6 Correct 2 ms 4940 KB Output is correct
7 Correct 2 ms 4940 KB Output is correct
8 Correct 2 ms 4940 KB Output is correct
9 Correct 2 ms 4940 KB Output is correct
10 Correct 2 ms 5020 KB Output is correct
11 Correct 2 ms 4928 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 4940 KB Output is correct
15 Correct 2 ms 4940 KB Output is correct
16 Correct 3 ms 5016 KB Output is correct
17 Correct 3 ms 4940 KB Output is correct
18 Correct 2 ms 4940 KB Output is correct
19 Correct 3 ms 5068 KB Output is correct
20 Correct 3 ms 4940 KB Output is correct
21 Correct 2 ms 4940 KB Output is correct
22 Correct 61 ms 5108 KB Output is correct
23 Correct 62 ms 5068 KB Output is correct
24 Correct 62 ms 5108 KB Output is correct
25 Correct 62 ms 5068 KB Output is correct
26 Correct 61 ms 5068 KB Output is correct
27 Correct 64 ms 5060 KB Output is correct
28 Correct 63 ms 5032 KB Output is correct
29 Correct 76 ms 5160 KB Output is correct
30 Correct 77 ms 5252 KB Output is correct
31 Correct 53 ms 5068 KB Output is correct
32 Correct 54 ms 5068 KB Output is correct
33 Correct 65 ms 5104 KB Output is correct
34 Correct 63 ms 5020 KB Output is correct
35 Correct 64 ms 5104 KB Output is correct
36 Correct 65 ms 5104 KB Output is correct
37 Correct 51 ms 5108 KB Output is correct
38 Correct 58 ms 5036 KB Output is correct
39 Correct 67 ms 5068 KB Output is correct
40 Correct 69 ms 5196 KB Output is correct
41 Correct 72 ms 5176 KB Output is correct
42 Correct 65 ms 5136 KB Output is correct
43 Correct 66 ms 5068 KB Output is correct
44 Correct 53 ms 5148 KB Output is correct
45 Correct 53 ms 5068 KB Output is correct
46 Correct 54 ms 5152 KB Output is correct
47 Correct 52 ms 5068 KB Output is correct
48 Correct 53 ms 5180 KB Output is correct
49 Correct 51 ms 5204 KB Output is correct
50 Correct 52 ms 5160 KB Output is correct
51 Correct 52 ms 5144 KB Output is correct
52 Correct 56 ms 5068 KB Output is correct
53 Correct 53 ms 5068 KB Output is correct
54 Correct 53 ms 5040 KB Output is correct
55 Correct 58 ms 5124 KB Output is correct
56 Correct 33 ms 5188 KB Output is correct
57 Correct 77 ms 5256 KB Output is correct
58 Correct 27 ms 5068 KB Output is correct
59 Correct 27 ms 5144 KB Output is correct
60 Correct 76 ms 5196 KB Output is correct
61 Correct 27 ms 5068 KB Output is correct
62 Correct 77 ms 5256 KB Output is correct
63 Correct 48 ms 5068 KB Output is correct
64 Execution timed out 1550 ms 15988 KB Time limit exceeded
65 Halted 0 ms 0 KB -