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Submission #359344

# Submission time Handle Problem Language Result Execution time Memory
359344 2021-01-26T22:31:29 Z eyangch Power Plant (JOI20_power) C++17
47 / 100
 226 ms 39388 KB 
#include <bits/stdc++.h>
#define endl "\n"

using namespace std;

int N;
vector<int> graph[200000];
char s[200000];
bool vis[200000];
int ans = 0;

int dfs(int id){
    if(vis[id]) return 0;
    vis[id] = true;
    int p = s[id] - '0';
    int ret = p;
    int c = 0;
    int mxc = 0;
    for(int i : graph[id]){
        int cur = dfs(i);
        if(cur == 0) continue;
        c++;
        mxc = max(mxc, cur);
        ret += cur;
    }
    if(p && c > 0){
        if(c == 1){
            ans = max(ans, ret);
            (--ret)--;
        }else{
            (--ret)--;
            ans = max({ans, ret, mxc+1});
        }
    }
    ans = max(ans, ret);
    return max(p, ret);
}

int32_t main(){
    ios::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> N;
    for(int i = 0; i < N-1; i++){
        int a, b; cin >> a >> b;
        graph[a-1].push_back(b-1);
        graph[b-1].push_back(a-1);
    }
    cin >> s;
    dfs(0);
    cout << ans << endl;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5100 KB Output is correct
2 Correct 4 ms 5100 KB Output is correct
3 Correct 5 ms 5100 KB Output is correct
4 Correct 5 ms 5100 KB Output is correct
5 Correct 4 ms 5100 KB Output is correct
6 Correct 4 ms 5248 KB Output is correct
7 Correct 4 ms 5100 KB Output is correct
8 Correct 4 ms 5100 KB Output is correct
9 Correct 4 ms 5100 KB Output is correct
10 Correct 4 ms 5100 KB Output is correct
11 Correct 4 ms 5100 KB Output is correct
12 Correct 4 ms 5100 KB Output is correct
13 Correct 5 ms 5100 KB Output is correct
14 Correct 4 ms 5100 KB Output is correct
15 Correct 4 ms 5100 KB Output is correct
16 Correct 4 ms 5100 KB Output is correct
17 Correct 4 ms 5100 KB Output is correct
18 Correct 4 ms 5100 KB Output is correct
19 Correct 4 ms 5100 KB Output is correct
20 Correct 4 ms 5100 KB Output is correct
21 Correct 4 ms 5100 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5100 KB Output is correct
2 Correct 4 ms 5100 KB Output is correct
3 Correct 5 ms 5100 KB Output is correct
4 Correct 5 ms 5100 KB Output is correct
5 Correct 4 ms 5100 KB Output is correct
6 Correct 4 ms 5248 KB Output is correct
7 Correct 4 ms 5100 KB Output is correct
8 Correct 4 ms 5100 KB Output is correct
9 Correct 4 ms 5100 KB Output is correct
10 Correct 4 ms 5100 KB Output is correct
11 Correct 4 ms 5100 KB Output is correct
12 Correct 4 ms 5100 KB Output is correct
13 Correct 5 ms 5100 KB Output is correct
14 Correct 4 ms 5100 KB Output is correct
15 Correct 4 ms 5100 KB Output is correct
16 Correct 4 ms 5100 KB Output is correct
17 Correct 4 ms 5100 KB Output is correct
18 Correct 4 ms 5100 KB Output is correct
19 Correct 4 ms 5100 KB Output is correct
20 Correct 4 ms 5100 KB Output is correct
21 Correct 4 ms 5100 KB Output is correct
22 Correct 5 ms 5100 KB Output is correct
23 Correct 7 ms 5100 KB Output is correct
24 Correct 5 ms 5100 KB Output is correct
25 Correct 5 ms 5100 KB Output is correct
26 Correct 4 ms 5100 KB Output is correct
27 Correct 5 ms 5100 KB Output is correct
28 Correct 5 ms 5100 KB Output is correct
29 Correct 5 ms 5228 KB Output is correct
30 Correct 4 ms 5228 KB Output is correct
31 Correct 4 ms 5100 KB Output is correct
32 Correct 4 ms 5100 KB Output is correct
33 Correct 5 ms 5100 KB Output is correct
34 Correct 12 ms 5100 KB Output is correct
35 Correct 4 ms 5100 KB Output is correct
36 Correct 5 ms 5100 KB Output is correct
37 Correct 4 ms 5100 KB Output is correct
38 Correct 4 ms 5100 KB Output is correct
39 Correct 5 ms 5228 KB Output is correct
40 Correct 4 ms 5100 KB Output is correct
41 Correct 5 ms 5228 KB Output is correct
42 Correct 5 ms 5100 KB Output is correct
43 Correct 4 ms 5100 KB Output is correct
44 Correct 5 ms 5100 KB Output is correct
45 Correct 4 ms 5100 KB Output is correct
46 Correct 5 ms 5100 KB Output is correct
47 Correct 5 ms 5100 KB Output is correct
48 Correct 6 ms 5228 KB Output is correct
49 Correct 5 ms 5228 KB Output is correct
50 Correct 4 ms 5100 KB Output is correct
51 Correct 5 ms 5100 KB Output is correct
52 Correct 4 ms 5100 KB Output is correct
53 Correct 4 ms 5100 KB Output is correct
54 Correct 5 ms 5100 KB Output is correct
55 Correct 4 ms 5100 KB Output is correct
56 Correct 4 ms 5100 KB Output is correct
57 Correct 5 ms 5228 KB Output is correct
58 Correct 6 ms 5100 KB Output is correct
59 Correct 6 ms 5100 KB Output is correct
60 Correct 5 ms 5228 KB Output is correct
61 Correct 4 ms 5100 KB Output is correct
62 Correct 4 ms 5228 KB Output is correct
63 Correct 5 ms 5100 KB Output is correct

Subtask #3
0.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5100 KB Output is correct
2 Correct 4 ms 5100 KB Output is correct
3 Correct 5 ms 5100 KB Output is correct
4 Correct 5 ms 5100 KB Output is correct
5 Correct 4 ms 5100 KB Output is correct
6 Correct 4 ms 5248 KB Output is correct
7 Correct 4 ms 5100 KB Output is correct
8 Correct 4 ms 5100 KB Output is correct
9 Correct 4 ms 5100 KB Output is correct
10 Correct 4 ms 5100 KB Output is correct
11 Correct 4 ms 5100 KB Output is correct
12 Correct 4 ms 5100 KB Output is correct
13 Correct 5 ms 5100 KB Output is correct
14 Correct 4 ms 5100 KB Output is correct
15 Correct 4 ms 5100 KB Output is correct
16 Correct 4 ms 5100 KB Output is correct
17 Correct 4 ms 5100 KB Output is correct
18 Correct 4 ms 5100 KB Output is correct
19 Correct 4 ms 5100 KB Output is correct
20 Correct 4 ms 5100 KB Output is correct
21 Correct 4 ms 5100 KB Output is correct
22 Correct 5 ms 5100 KB Output is correct
23 Correct 7 ms 5100 KB Output is correct
24 Correct 5 ms 5100 KB Output is correct
25 Correct 5 ms 5100 KB Output is correct
26 Correct 4 ms 5100 KB Output is correct
27 Correct 5 ms 5100 KB Output is correct
28 Correct 5 ms 5100 KB Output is correct
29 Correct 5 ms 5228 KB Output is correct
30 Correct 4 ms 5228 KB Output is correct
31 Correct 4 ms 5100 KB Output is correct
32 Correct 4 ms 5100 KB Output is correct
33 Correct 5 ms 5100 KB Output is correct
34 Correct 12 ms 5100 KB Output is correct
35 Correct 4 ms 5100 KB Output is correct
36 Correct 5 ms 5100 KB Output is correct
37 Correct 4 ms 5100 KB Output is correct
38 Correct 4 ms 5100 KB Output is correct
39 Correct 5 ms 5228 KB Output is correct
40 Correct 4 ms 5100 KB Output is correct
41 Correct 5 ms 5228 KB Output is correct
42 Correct 5 ms 5100 KB Output is correct
43 Correct 4 ms 5100 KB Output is correct
44 Correct 5 ms 5100 KB Output is correct
45 Correct 4 ms 5100 KB Output is correct
46 Correct 5 ms 5100 KB Output is correct
47 Correct 5 ms 5100 KB Output is correct
48 Correct 6 ms 5228 KB Output is correct
49 Correct 5 ms 5228 KB Output is correct
50 Correct 4 ms 5100 KB Output is correct
51 Correct 5 ms 5100 KB Output is correct
52 Correct 4 ms 5100 KB Output is correct
53 Correct 4 ms 5100 KB Output is correct
54 Correct 5 ms 5100 KB Output is correct
55 Correct 4 ms 5100 KB Output is correct
56 Correct 4 ms 5100 KB Output is correct
57 Correct 5 ms 5228 KB Output is correct
58 Correct 6 ms 5100 KB Output is correct
59 Correct 6 ms 5100 KB Output is correct
60 Correct 5 ms 5228 KB Output is correct
61 Correct 4 ms 5100 KB Output is correct
62 Correct 4 ms 5228 KB Output is correct
63 Correct 5 ms 5100 KB Output is correct
64 Correct 170 ms 12140 KB Output is correct
65 Correct 176 ms 14496 KB Output is correct
66 Correct 178 ms 14572 KB Output is correct
67 Correct 197 ms 14572 KB Output is correct
68 Correct 166 ms 14444 KB Output is correct
69 Correct 170 ms 14444 KB Output is correct
70 Correct 168 ms 14444 KB Output is correct
71 Correct 162 ms 14444 KB Output is correct
72 Correct 164 ms 14572 KB Output is correct
73 Runtime error 226 ms 39388 KB Execution killed with signal 6
74 Halted 0 ms 0 KB -