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Submission #969343

# Submission time Handle Problem Language Result Execution time Memory
969343 2024-04-25T02:58:06 Z _callmelucian Power Plant (JOI20_power) C++14
100 / 100
 110 ms 30032 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pl;
typedef pair<int,int> pii;
typedef tuple<int,int,int> tt;

#define all(a) a.begin(), a.end()
#define filter(a) a.erase(unique(all(a)), a.end())

const int mn = 2e5 + 5;
int dp[2][mn], power[mn];
vector<int> adj[mn];

void dfs (int u, int p) {
    for (int v : adj[u]) {
        if (v == p) continue;
        dfs(v, u);
        dp[0][u] += max(0, dp[0][v]);
        dp[1][u] = max(dp[1][u], dp[0][v]);
    }
    dp[1][u] += power[u];
    dp[0][u] -= power[u];

    if (power[u])
        dp[0][u] = max(dp[0][u], 1);
}

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

    int n; cin >> n;
    for (int i = 1; i < n; i++) {
        int a, b; cin >> a >> b;
        adj[a].push_back(b);
        adj[b].push_back(a);
    }
    for (int i = 1; i <= n; i++) {
        char c; cin >> c;
        power[i] = c - '0';
    }
    dfs(1, 1);

    int ans = 0;
    for (int i = 1; i <= n; i++)
        for (int j = 0; j < 2; j++)
            ans = max(ans, dp[j][i]);
    cout << ans;

    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6744 KB Output is correct
2 Correct 2 ms 6748 KB Output is correct
3 Correct 2 ms 6748 KB Output is correct
4 Correct 2 ms 6744 KB Output is correct
5 Correct 1 ms 6748 KB Output is correct
6 Correct 1 ms 6748 KB Output is correct
7 Correct 2 ms 6744 KB Output is correct
8 Correct 2 ms 6748 KB Output is correct
9 Correct 1 ms 6748 KB Output is correct
10 Correct 1 ms 6744 KB Output is correct
11 Correct 2 ms 6748 KB Output is correct
12 Correct 2 ms 6748 KB Output is correct
13 Correct 1 ms 6748 KB Output is correct
14 Correct 2 ms 6748 KB Output is correct
15 Correct 1 ms 6748 KB Output is correct
16 Correct 1 ms 6748 KB Output is correct
17 Correct 1 ms 6748 KB Output is correct
18 Correct 1 ms 6744 KB Output is correct
19 Correct 1 ms 6636 KB Output is correct
20 Correct 2 ms 6748 KB Output is correct
21 Correct 2 ms 6748 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6744 KB Output is correct
2 Correct 2 ms 6748 KB Output is correct
3 Correct 2 ms 6748 KB Output is correct
4 Correct 2 ms 6744 KB Output is correct
5 Correct 1 ms 6748 KB Output is correct
6 Correct 1 ms 6748 KB Output is correct
7 Correct 2 ms 6744 KB Output is correct
8 Correct 2 ms 6748 KB Output is correct
9 Correct 1 ms 6748 KB Output is correct
10 Correct 1 ms 6744 KB Output is correct
11 Correct 2 ms 6748 KB Output is correct
12 Correct 2 ms 6748 KB Output is correct
13 Correct 1 ms 6748 KB Output is correct
14 Correct 2 ms 6748 KB Output is correct
15 Correct 1 ms 6748 KB Output is correct
16 Correct 1 ms 6748 KB Output is correct
17 Correct 1 ms 6748 KB Output is correct
18 Correct 1 ms 6744 KB Output is correct
19 Correct 1 ms 6636 KB Output is correct
20 Correct 2 ms 6748 KB Output is correct
21 Correct 2 ms 6748 KB Output is correct
22 Correct 2 ms 6744 KB Output is correct
23 Correct 2 ms 6748 KB Output is correct
24 Correct 2 ms 6748 KB Output is correct
25 Correct 2 ms 6748 KB Output is correct
26 Correct 4 ms 6748 KB Output is correct
27 Correct 2 ms 6748 KB Output is correct
28 Correct 2 ms 6808 KB Output is correct
29 Correct 2 ms 7004 KB Output is correct
30 Correct 2 ms 6748 KB Output is correct
31 Correct 3 ms 6744 KB Output is correct
32 Correct 2 ms 6744 KB Output is correct
33 Correct 2 ms 6744 KB Output is correct
34 Correct 2 ms 6748 KB Output is correct
35 Correct 2 ms 6748 KB Output is correct
36 Correct 2 ms 6748 KB Output is correct
37 Correct 2 ms 6748 KB Output is correct
38 Correct 2 ms 6748 KB Output is correct
39 Correct 2 ms 6748 KB Output is correct
40 Correct 2 ms 6748 KB Output is correct
41 Correct 3 ms 6744 KB Output is correct
42 Correct 2 ms 6912 KB Output is correct
43 Correct 3 ms 6876 KB Output is correct
44 Correct 2 ms 6800 KB Output is correct
45 Correct 2 ms 6748 KB Output is correct
46 Correct 2 ms 6748 KB Output is correct
47 Correct 2 ms 6892 KB Output is correct
48 Correct 2 ms 6748 KB Output is correct
49 Correct 2 ms 6888 KB Output is correct
50 Correct 2 ms 6748 KB Output is correct
51 Correct 2 ms 6748 KB Output is correct
52 Correct 2 ms 6748 KB Output is correct
53 Correct 2 ms 6808 KB Output is correct
54 Correct 2 ms 6748 KB Output is correct
55 Correct 2 ms 6748 KB Output is correct
56 Correct 2 ms 7000 KB Output is correct
57 Correct 2 ms 7000 KB Output is correct
58 Correct 2 ms 6748 KB Output is correct
59 Correct 2 ms 6748 KB Output is correct
60 Correct 2 ms 6748 KB Output is correct
61 Correct 2 ms 6748 KB Output is correct
62 Correct 2 ms 6900 KB Output is correct
63 Correct 2 ms 6744 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6744 KB Output is correct
2 Correct 2 ms 6748 KB Output is correct
3 Correct 2 ms 6748 KB Output is correct
4 Correct 2 ms 6744 KB Output is correct
5 Correct 1 ms 6748 KB Output is correct
6 Correct 1 ms 6748 KB Output is correct
7 Correct 2 ms 6744 KB Output is correct
8 Correct 2 ms 6748 KB Output is correct
9 Correct 1 ms 6748 KB Output is correct
10 Correct 1 ms 6744 KB Output is correct
11 Correct 2 ms 6748 KB Output is correct
12 Correct 2 ms 6748 KB Output is correct
13 Correct 1 ms 6748 KB Output is correct
14 Correct 2 ms 6748 KB Output is correct
15 Correct 1 ms 6748 KB Output is correct
16 Correct 1 ms 6748 KB Output is correct
17 Correct 1 ms 6748 KB Output is correct
18 Correct 1 ms 6744 KB Output is correct
19 Correct 1 ms 6636 KB Output is correct
20 Correct 2 ms 6748 KB Output is correct
21 Correct 2 ms 6748 KB Output is correct
22 Correct 2 ms 6744 KB Output is correct
23 Correct 2 ms 6748 KB Output is correct
24 Correct 2 ms 6748 KB Output is correct
25 Correct 2 ms 6748 KB Output is correct
26 Correct 4 ms 6748 KB Output is correct
27 Correct 2 ms 6748 KB Output is correct
28 Correct 2 ms 6808 KB Output is correct
29 Correct 2 ms 7004 KB Output is correct
30 Correct 2 ms 6748 KB Output is correct
31 Correct 3 ms 6744 KB Output is correct
32 Correct 2 ms 6744 KB Output is correct
33 Correct 2 ms 6744 KB Output is correct
34 Correct 2 ms 6748 KB Output is correct
35 Correct 2 ms 6748 KB Output is correct
36 Correct 2 ms 6748 KB Output is correct
37 Correct 2 ms 6748 KB Output is correct
38 Correct 2 ms 6748 KB Output is correct
39 Correct 2 ms 6748 KB Output is correct
40 Correct 2 ms 6748 KB Output is correct
41 Correct 3 ms 6744 KB Output is correct
42 Correct 2 ms 6912 KB Output is correct
43 Correct 3 ms 6876 KB Output is correct
44 Correct 2 ms 6800 KB Output is correct
45 Correct 2 ms 6748 KB Output is correct
46 Correct 2 ms 6748 KB Output is correct
47 Correct 2 ms 6892 KB Output is correct
48 Correct 2 ms 6748 KB Output is correct
49 Correct 2 ms 6888 KB Output is correct
50 Correct 2 ms 6748 KB Output is correct
51 Correct 2 ms 6748 KB Output is correct
52 Correct 2 ms 6748 KB Output is correct
53 Correct 2 ms 6808 KB Output is correct
54 Correct 2 ms 6748 KB Output is correct
55 Correct 2 ms 6748 KB Output is correct
56 Correct 2 ms 7000 KB Output is correct
57 Correct 2 ms 7000 KB Output is correct
58 Correct 2 ms 6748 KB Output is correct
59 Correct 2 ms 6748 KB Output is correct
60 Correct 2 ms 6748 KB Output is correct
61 Correct 2 ms 6748 KB Output is correct
62 Correct 2 ms 6900 KB Output is correct
63 Correct 2 ms 6744 KB Output is correct
64 Correct 64 ms 16468 KB Output is correct
65 Correct 84 ms 16376 KB Output is correct
66 Correct 64 ms 16468 KB Output is correct
67 Correct 73 ms 16372 KB Output is correct
68 Correct 87 ms 16336 KB Output is correct
69 Correct 64 ms 16468 KB Output is correct
70 Correct 71 ms 16768 KB Output is correct
71 Correct 86 ms 16332 KB Output is correct
72 Correct 59 ms 16464 KB Output is correct
73 Correct 85 ms 29092 KB Output is correct
74 Correct 110 ms 29128 KB Output is correct
75 Correct 58 ms 16464 KB Output is correct
76 Correct 58 ms 16212 KB Output is correct
77 Correct 59 ms 16456 KB Output is correct
78 Correct 66 ms 16212 KB Output is correct
79 Correct 78 ms 16456 KB Output is correct
80 Correct 59 ms 16212 KB Output is correct
81 Correct 55 ms 16732 KB Output is correct
82 Correct 60 ms 16600 KB Output is correct
83 Correct 73 ms 21652 KB Output is correct
84 Correct 75 ms 23636 KB Output is correct
85 Correct 74 ms 23380 KB Output is correct
86 Correct 59 ms 17804 KB Output is correct
87 Correct 102 ms 17184 KB Output is correct
88 Correct 66 ms 17748 KB Output is correct
89 Correct 63 ms 17636 KB Output is correct
90 Correct 66 ms 17492 KB Output is correct
91 Correct 68 ms 17744 KB Output is correct
92 Correct 63 ms 17936 KB Output is correct
93 Correct 65 ms 20436 KB Output is correct
94 Correct 71 ms 21964 KB Output is correct
95 Correct 69 ms 20944 KB Output is correct
96 Correct 71 ms 19076 KB Output is correct
97 Correct 56 ms 17580 KB Output is correct
98 Correct 64 ms 16980 KB Output is correct
99 Correct 80 ms 16724 KB Output is correct
100 Correct 80 ms 20092 KB Output is correct
101 Correct 62 ms 18084 KB Output is correct
102 Correct 55 ms 17304 KB Output is correct
103 Correct 63 ms 16896 KB Output is correct
104 Correct 44 ms 17340 KB Output is correct
105 Correct 91 ms 25988 KB Output is correct
106 Correct 46 ms 17100 KB Output is correct
107 Correct 44 ms 17100 KB Output is correct
108 Correct 79 ms 29780 KB Output is correct
109 Correct 67 ms 17344 KB Output is correct
110 Correct 80 ms 30032 KB Output is correct
111 Correct 54 ms 16208 KB Output is correct