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Submission #885796

# Submission time Handle Problem Language Result Execution time Memory
885796 2023-12-10T18:44:39 Z wksp Power Plant (JOI20_power) C++14
100 / 100
 120 ms 28724 KB 
#include<bits/stdc++.h>
using namespace std;

const int n_max = 2 * 1e5 + 7; 
vector<int> graph[n_max];
int power_generator[n_max];
int ans;

int DFS(int v, int p){
    int sum = 0;
    int max_vallue = 0;
    for(auto u: graph[v]){
        if(u != p){
            int vallue = DFS(u ,v);
            sum += vallue;
            max_vallue = max(max_vallue, vallue);
        }
    }
    int ans_tym = 0;
    if(power_generator[v] == 1){
        ans_tym = max(sum - 1, 1);
        if(sum == max_vallue){
            ans = max(ans, sum + 1);
        }
        if(sum == max_vallue + 1){
            ans = max(ans, sum);
        }
    }else{
        ans_tym = sum;
    }
    ans = max(ans, ans_tym);
    return ans_tym;
}


int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    ans = 0;
    int n;
    cin >> n;
    for(int i = 0; i < n - 1; i++){
        int a, b;
        cin >> a >> b;
        graph[a].push_back(b);
        graph[b].push_back(a);
    }
    string s;
    cin >> s;
    for(int i = 0; i < n; i++){
        if(s[i] == '1'){
            power_generator[i+1] = 1;
        }
    }
    ans = 0;
    DFS(1, 0);
    cout << ans << '\n';

    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5724 KB Output is correct
2 Correct 2 ms 5980 KB Output is correct
3 Correct 2 ms 5720 KB Output is correct
4 Correct 1 ms 5724 KB Output is correct
5 Correct 1 ms 5760 KB Output is correct
6 Correct 1 ms 5724 KB Output is correct
7 Correct 1 ms 5724 KB Output is correct
8 Correct 1 ms 5724 KB Output is correct
9 Correct 1 ms 5724 KB Output is correct
10 Correct 1 ms 5648 KB Output is correct
11 Correct 2 ms 5724 KB Output is correct
12 Correct 1 ms 5720 KB Output is correct
13 Correct 1 ms 5724 KB Output is correct
14 Correct 1 ms 5724 KB Output is correct
15 Correct 1 ms 5724 KB Output is correct
16 Correct 1 ms 5724 KB Output is correct
17 Correct 2 ms 5720 KB Output is correct
18 Correct 2 ms 5720 KB Output is correct
19 Correct 2 ms 5724 KB Output is correct
20 Correct 1 ms 5724 KB Output is correct
21 Correct 2 ms 5724 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5724 KB Output is correct
2 Correct 2 ms 5980 KB Output is correct
3 Correct 2 ms 5720 KB Output is correct
4 Correct 1 ms 5724 KB Output is correct
5 Correct 1 ms 5760 KB Output is correct
6 Correct 1 ms 5724 KB Output is correct
7 Correct 1 ms 5724 KB Output is correct
8 Correct 1 ms 5724 KB Output is correct
9 Correct 1 ms 5724 KB Output is correct
10 Correct 1 ms 5648 KB Output is correct
11 Correct 2 ms 5724 KB Output is correct
12 Correct 1 ms 5720 KB Output is correct
13 Correct 1 ms 5724 KB Output is correct
14 Correct 1 ms 5724 KB Output is correct
15 Correct 1 ms 5724 KB Output is correct
16 Correct 1 ms 5724 KB Output is correct
17 Correct 2 ms 5720 KB Output is correct
18 Correct 2 ms 5720 KB Output is correct
19 Correct 2 ms 5724 KB Output is correct
20 Correct 1 ms 5724 KB Output is correct
21 Correct 2 ms 5724 KB Output is correct
22 Correct 2 ms 5720 KB Output is correct
23 Correct 2 ms 5724 KB Output is correct
24 Correct 2 ms 5724 KB Output is correct
25 Correct 2 ms 5764 KB Output is correct
26 Correct 2 ms 5724 KB Output is correct
27 Correct 2 ms 5724 KB Output is correct
28 Correct 2 ms 5724 KB Output is correct
29 Correct 2 ms 5852 KB Output is correct
30 Correct 2 ms 5724 KB Output is correct
31 Correct 2 ms 5724 KB Output is correct
32 Correct 2 ms 5724 KB Output is correct
33 Correct 2 ms 5720 KB Output is correct
34 Correct 2 ms 5772 KB Output is correct
35 Correct 2 ms 5724 KB Output is correct
36 Correct 2 ms 5724 KB Output is correct
37 Correct 2 ms 5848 KB Output is correct
38 Correct 2 ms 5724 KB Output is correct
39 Correct 2 ms 5724 KB Output is correct
40 Correct 2 ms 5724 KB Output is correct
41 Correct 2 ms 5724 KB Output is correct
42 Correct 2 ms 5724 KB Output is correct
43 Correct 3 ms 5980 KB Output is correct
44 Correct 2 ms 5724 KB Output is correct
45 Correct 2 ms 5724 KB Output is correct
46 Correct 2 ms 5724 KB Output is correct
47 Correct 2 ms 5724 KB Output is correct
48 Correct 2 ms 5724 KB Output is correct
49 Correct 2 ms 5724 KB Output is correct
50 Correct 2 ms 5780 KB Output is correct
51 Correct 2 ms 5724 KB Output is correct
52 Correct 2 ms 5720 KB Output is correct
53 Correct 2 ms 5724 KB Output is correct
54 Correct 2 ms 5724 KB Output is correct
55 Correct 2 ms 5724 KB Output is correct
56 Correct 2 ms 5724 KB Output is correct
57 Correct 3 ms 5980 KB Output is correct
58 Correct 3 ms 5724 KB Output is correct
59 Correct 2 ms 5724 KB Output is correct
60 Correct 2 ms 5724 KB Output is correct
61 Correct 2 ms 5724 KB Output is correct
62 Correct 2 ms 5724 KB Output is correct
63 Correct 2 ms 5720 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5724 KB Output is correct
2 Correct 2 ms 5980 KB Output is correct
3 Correct 2 ms 5720 KB Output is correct
4 Correct 1 ms 5724 KB Output is correct
5 Correct 1 ms 5760 KB Output is correct
6 Correct 1 ms 5724 KB Output is correct
7 Correct 1 ms 5724 KB Output is correct
8 Correct 1 ms 5724 KB Output is correct
9 Correct 1 ms 5724 KB Output is correct
10 Correct 1 ms 5648 KB Output is correct
11 Correct 2 ms 5724 KB Output is correct
12 Correct 1 ms 5720 KB Output is correct
13 Correct 1 ms 5724 KB Output is correct
14 Correct 1 ms 5724 KB Output is correct
15 Correct 1 ms 5724 KB Output is correct
16 Correct 1 ms 5724 KB Output is correct
17 Correct 2 ms 5720 KB Output is correct
18 Correct 2 ms 5720 KB Output is correct
19 Correct 2 ms 5724 KB Output is correct
20 Correct 1 ms 5724 KB Output is correct
21 Correct 2 ms 5724 KB Output is correct
22 Correct 2 ms 5720 KB Output is correct
23 Correct 2 ms 5724 KB Output is correct
24 Correct 2 ms 5724 KB Output is correct
25 Correct 2 ms 5764 KB Output is correct
26 Correct 2 ms 5724 KB Output is correct
27 Correct 2 ms 5724 KB Output is correct
28 Correct 2 ms 5724 KB Output is correct
29 Correct 2 ms 5852 KB Output is correct
30 Correct 2 ms 5724 KB Output is correct
31 Correct 2 ms 5724 KB Output is correct
32 Correct 2 ms 5724 KB Output is correct
33 Correct 2 ms 5720 KB Output is correct
34 Correct 2 ms 5772 KB Output is correct
35 Correct 2 ms 5724 KB Output is correct
36 Correct 2 ms 5724 KB Output is correct
37 Correct 2 ms 5848 KB Output is correct
38 Correct 2 ms 5724 KB Output is correct
39 Correct 2 ms 5724 KB Output is correct
40 Correct 2 ms 5724 KB Output is correct
41 Correct 2 ms 5724 KB Output is correct
42 Correct 2 ms 5724 KB Output is correct
43 Correct 3 ms 5980 KB Output is correct
44 Correct 2 ms 5724 KB Output is correct
45 Correct 2 ms 5724 KB Output is correct
46 Correct 2 ms 5724 KB Output is correct
47 Correct 2 ms 5724 KB Output is correct
48 Correct 2 ms 5724 KB Output is correct
49 Correct 2 ms 5724 KB Output is correct
50 Correct 2 ms 5780 KB Output is correct
51 Correct 2 ms 5724 KB Output is correct
52 Correct 2 ms 5720 KB Output is correct
53 Correct 2 ms 5724 KB Output is correct
54 Correct 2 ms 5724 KB Output is correct
55 Correct 2 ms 5724 KB Output is correct
56 Correct 2 ms 5724 KB Output is correct
57 Correct 3 ms 5980 KB Output is correct
58 Correct 3 ms 5724 KB Output is correct
59 Correct 2 ms 5724 KB Output is correct
60 Correct 2 ms 5724 KB Output is correct
61 Correct 2 ms 5724 KB Output is correct
62 Correct 2 ms 5724 KB Output is correct
63 Correct 2 ms 5720 KB Output is correct
64 Correct 69 ms 15140 KB Output is correct
65 Correct 92 ms 15264 KB Output is correct
66 Correct 60 ms 15228 KB Output is correct
67 Correct 62 ms 15212 KB Output is correct
68 Correct 60 ms 15136 KB Output is correct
69 Correct 78 ms 15328 KB Output is correct
70 Correct 88 ms 15308 KB Output is correct
71 Correct 97 ms 15268 KB Output is correct
72 Correct 71 ms 15152 KB Output is correct
73 Correct 99 ms 27760 KB Output is correct
74 Correct 96 ms 27676 KB Output is correct
75 Correct 71 ms 15116 KB Output is correct
76 Correct 76 ms 15164 KB Output is correct
77 Correct 63 ms 15220 KB Output is correct
78 Correct 83 ms 15160 KB Output is correct
79 Correct 62 ms 15144 KB Output is correct
80 Correct 92 ms 15208 KB Output is correct
81 Correct 59 ms 15644 KB Output is correct
82 Correct 64 ms 15344 KB Output is correct
83 Correct 89 ms 20200 KB Output is correct
84 Correct 114 ms 22356 KB Output is correct
85 Correct 94 ms 22172 KB Output is correct
86 Correct 71 ms 16528 KB Output is correct
87 Correct 82 ms 16016 KB Output is correct
88 Correct 66 ms 16396 KB Output is correct
89 Correct 62 ms 16540 KB Output is correct
90 Correct 76 ms 16308 KB Output is correct
91 Correct 81 ms 16532 KB Output is correct
92 Correct 71 ms 16732 KB Output is correct
93 Correct 77 ms 19060 KB Output is correct
94 Correct 89 ms 20868 KB Output is correct
95 Correct 67 ms 19532 KB Output is correct
96 Correct 65 ms 17844 KB Output is correct
97 Correct 75 ms 16364 KB Output is correct
98 Correct 78 ms 15812 KB Output is correct
99 Correct 71 ms 15756 KB Output is correct
100 Correct 69 ms 18848 KB Output is correct
101 Correct 71 ms 16656 KB Output is correct
102 Correct 67 ms 16060 KB Output is correct
103 Correct 81 ms 15808 KB Output is correct
104 Correct 52 ms 15816 KB Output is correct
105 Correct 120 ms 24508 KB Output is correct
106 Correct 47 ms 16072 KB Output is correct
107 Correct 59 ms 15840 KB Output is correct
108 Correct 83 ms 28304 KB Output is correct
109 Correct 61 ms 16024 KB Output is correct
110 Correct 82 ms 28724 KB Output is correct
111 Correct 57 ms 15128 KB Output is correct