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Submission #862435

# Submission time Handle Problem Language Result Execution time Memory
862435 2023-10-18T08:34:44 Z Desh03 Power Plant (JOI20_power) C++17
100 / 100
 133 ms 29588 KB 
#include <bits/stdc++.h>

using namespace std;

const int N = 2e5;
vector<int> g[N];
string s;
int dp[2][N];

void dfs(int u, int p) {
    dp[0][u] = dp[1][u] = s[u];
    int sum_dp = 0, mx_dp = 0;
    for (int v : g[u]) {
        if (v != p) {
            dfs(v, u);
            dp[0][u] = max(dp[0][u], dp[0][v]);
            sum_dp += dp[1][v];
            mx_dp = max(mx_dp, dp[1][v]);
        }
    }
    dp[0][u] = max({dp[0][u], sum_dp - s[u], mx_dp + s[u]});
    dp[1][u] = max(dp[1][u], sum_dp - s[u]);
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin >> n;
    for (int i = 0; i < n - 1; i++) {
        int a, b;
        cin >> a >> b;
        g[--a].push_back(--b);
        g[b].push_back(a);
    }
    cin >> s;
    for (char &c : s) c -= '0';
    dfs(0, 0);
    cout << dp[0][0] << '\n';
    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6492 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 2 ms 6492 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 2 ms 6492 KB Output is correct
6 Correct 2 ms 6492 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 2 ms 6468 KB Output is correct
9 Correct 2 ms 6488 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 2 ms 6492 KB Output is correct
12 Correct 2 ms 6492 KB Output is correct
13 Correct 2 ms 6492 KB Output is correct
14 Correct 2 ms 6492 KB Output is correct
15 Correct 2 ms 6488 KB Output is correct
16 Correct 2 ms 6492 KB Output is correct
17 Correct 2 ms 6492 KB Output is correct
18 Correct 2 ms 6492 KB Output is correct
19 Correct 2 ms 6492 KB Output is correct
20 Correct 2 ms 6492 KB Output is correct
21 Correct 2 ms 6492 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6492 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 2 ms 6492 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 2 ms 6492 KB Output is correct
6 Correct 2 ms 6492 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 2 ms 6468 KB Output is correct
9 Correct 2 ms 6488 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 2 ms 6492 KB Output is correct
12 Correct 2 ms 6492 KB Output is correct
13 Correct 2 ms 6492 KB Output is correct
14 Correct 2 ms 6492 KB Output is correct
15 Correct 2 ms 6488 KB Output is correct
16 Correct 2 ms 6492 KB Output is correct
17 Correct 2 ms 6492 KB Output is correct
18 Correct 2 ms 6492 KB Output is correct
19 Correct 2 ms 6492 KB Output is correct
20 Correct 2 ms 6492 KB Output is correct
21 Correct 2 ms 6492 KB Output is correct
22 Correct 3 ms 6492 KB Output is correct
23 Correct 3 ms 6492 KB Output is correct
24 Correct 3 ms 6560 KB Output is correct
25 Correct 3 ms 6556 KB Output is correct
26 Correct 2 ms 6492 KB Output is correct
27 Correct 2 ms 6488 KB Output is correct
28 Correct 2 ms 6492 KB Output is correct
29 Correct 2 ms 6588 KB Output is correct
30 Correct 2 ms 6488 KB Output is correct
31 Correct 2 ms 6492 KB Output is correct
32 Correct 2 ms 6492 KB Output is correct
33 Correct 2 ms 6488 KB Output is correct
34 Correct 2 ms 6560 KB Output is correct
35 Correct 2 ms 6492 KB Output is correct
36 Correct 2 ms 6492 KB Output is correct
37 Correct 2 ms 6492 KB Output is correct
38 Correct 2 ms 6492 KB Output is correct
39 Correct 2 ms 6492 KB Output is correct
40 Correct 2 ms 6492 KB Output is correct
41 Correct 2 ms 6492 KB Output is correct
42 Correct 2 ms 6488 KB Output is correct
43 Correct 2 ms 6492 KB Output is correct
44 Correct 2 ms 6492 KB Output is correct
45 Correct 2 ms 6492 KB Output is correct
46 Correct 2 ms 6492 KB Output is correct
47 Correct 2 ms 6492 KB Output is correct
48 Correct 2 ms 6720 KB Output is correct
49 Correct 2 ms 6492 KB Output is correct
50 Correct 2 ms 6492 KB Output is correct
51 Correct 2 ms 6580 KB Output is correct
52 Correct 2 ms 6488 KB Output is correct
53 Correct 2 ms 6488 KB Output is correct
54 Correct 3 ms 6492 KB Output is correct
55 Correct 2 ms 6564 KB Output is correct
56 Correct 3 ms 7004 KB Output is correct
57 Correct 2 ms 6748 KB Output is correct
58 Correct 2 ms 6492 KB Output is correct
59 Correct 2 ms 6488 KB Output is correct
60 Correct 2 ms 6492 KB Output is correct
61 Correct 2 ms 6492 KB Output is correct
62 Correct 2 ms 6748 KB Output is correct
63 Correct 2 ms 6492 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6492 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 2 ms 6492 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 2 ms 6492 KB Output is correct
6 Correct 2 ms 6492 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 2 ms 6468 KB Output is correct
9 Correct 2 ms 6488 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 2 ms 6492 KB Output is correct
12 Correct 2 ms 6492 KB Output is correct
13 Correct 2 ms 6492 KB Output is correct
14 Correct 2 ms 6492 KB Output is correct
15 Correct 2 ms 6488 KB Output is correct
16 Correct 2 ms 6492 KB Output is correct
17 Correct 2 ms 6492 KB Output is correct
18 Correct 2 ms 6492 KB Output is correct
19 Correct 2 ms 6492 KB Output is correct
20 Correct 2 ms 6492 KB Output is correct
21 Correct 2 ms 6492 KB Output is correct
22 Correct 3 ms 6492 KB Output is correct
23 Correct 3 ms 6492 KB Output is correct
24 Correct 3 ms 6560 KB Output is correct
25 Correct 3 ms 6556 KB Output is correct
26 Correct 2 ms 6492 KB Output is correct
27 Correct 2 ms 6488 KB Output is correct
28 Correct 2 ms 6492 KB Output is correct
29 Correct 2 ms 6588 KB Output is correct
30 Correct 2 ms 6488 KB Output is correct
31 Correct 2 ms 6492 KB Output is correct
32 Correct 2 ms 6492 KB Output is correct
33 Correct 2 ms 6488 KB Output is correct
34 Correct 2 ms 6560 KB Output is correct
35 Correct 2 ms 6492 KB Output is correct
36 Correct 2 ms 6492 KB Output is correct
37 Correct 2 ms 6492 KB Output is correct
38 Correct 2 ms 6492 KB Output is correct
39 Correct 2 ms 6492 KB Output is correct
40 Correct 2 ms 6492 KB Output is correct
41 Correct 2 ms 6492 KB Output is correct
42 Correct 2 ms 6488 KB Output is correct
43 Correct 2 ms 6492 KB Output is correct
44 Correct 2 ms 6492 KB Output is correct
45 Correct 2 ms 6492 KB Output is correct
46 Correct 2 ms 6492 KB Output is correct
47 Correct 2 ms 6492 KB Output is correct
48 Correct 2 ms 6720 KB Output is correct
49 Correct 2 ms 6492 KB Output is correct
50 Correct 2 ms 6492 KB Output is correct
51 Correct 2 ms 6580 KB Output is correct
52 Correct 2 ms 6488 KB Output is correct
53 Correct 2 ms 6488 KB Output is correct
54 Correct 3 ms 6492 KB Output is correct
55 Correct 2 ms 6564 KB Output is correct
56 Correct 3 ms 7004 KB Output is correct
57 Correct 2 ms 6748 KB Output is correct
58 Correct 2 ms 6492 KB Output is correct
59 Correct 2 ms 6488 KB Output is correct
60 Correct 2 ms 6492 KB Output is correct
61 Correct 2 ms 6492 KB Output is correct
62 Correct 2 ms 6748 KB Output is correct
63 Correct 2 ms 6492 KB Output is correct
64 Correct 83 ms 16064 KB Output is correct
65 Correct 70 ms 16076 KB Output is correct
66 Correct 62 ms 15960 KB Output is correct
67 Correct 80 ms 16016 KB Output is correct
68 Correct 61 ms 16032 KB Output is correct
69 Correct 64 ms 16024 KB Output is correct
70 Correct 74 ms 15928 KB Output is correct
71 Correct 85 ms 16028 KB Output is correct
72 Correct 60 ms 15936 KB Output is correct
73 Correct 79 ms 28560 KB Output is correct
74 Correct 77 ms 28560 KB Output is correct
75 Correct 60 ms 16020 KB Output is correct
76 Correct 65 ms 15936 KB Output is correct
77 Correct 73 ms 15924 KB Output is correct
78 Correct 73 ms 15852 KB Output is correct
79 Correct 116 ms 15936 KB Output is correct
80 Correct 74 ms 15980 KB Output is correct
81 Correct 67 ms 16356 KB Output is correct
82 Correct 59 ms 16208 KB Output is correct
83 Correct 67 ms 21144 KB Output is correct
84 Correct 69 ms 23400 KB Output is correct
85 Correct 76 ms 22856 KB Output is correct
86 Correct 60 ms 17296 KB Output is correct
87 Correct 78 ms 16732 KB Output is correct
88 Correct 61 ms 17160 KB Output is correct
89 Correct 84 ms 17308 KB Output is correct
90 Correct 66 ms 16956 KB Output is correct
91 Correct 90 ms 17320 KB Output is correct
92 Correct 93 ms 17696 KB Output is correct
93 Correct 71 ms 19988 KB Output is correct
94 Correct 67 ms 21708 KB Output is correct
95 Correct 98 ms 20480 KB Output is correct
96 Correct 74 ms 18688 KB Output is correct
97 Correct 80 ms 17052 KB Output is correct
98 Correct 95 ms 16536 KB Output is correct
99 Correct 89 ms 16468 KB Output is correct
100 Correct 94 ms 19640 KB Output is correct
101 Correct 83 ms 17540 KB Output is correct
102 Correct 113 ms 16688 KB Output is correct
103 Correct 101 ms 16588 KB Output is correct
104 Correct 48 ms 16836 KB Output is correct
105 Correct 105 ms 25508 KB Output is correct
106 Correct 46 ms 16840 KB Output is correct
107 Correct 54 ms 16684 KB Output is correct
108 Correct 108 ms 29364 KB Output is correct
109 Correct 57 ms 16928 KB Output is correct
110 Correct 133 ms 29588 KB Output is correct
111 Correct 83 ms 15932 KB Output is correct