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Submission #1019860

# Submission time Handle Problem Language Result Execution time Memory
1019860 2024-07-11T09:55:56 Z Andrey Power Plant (JOI20_power) C++14
47 / 100
 1500 ms 15588 KB 
#include<bits/stdc++.h>
using namespace std;

vector<int> haha[200001];
vector<int> dp(200001);
vector<int> col(200001);

void dfs(int a, int t) {
    int sb = 0;
    for(int v: haha[a]) {
        if(v != t) {
            dfs(v,a);
            sb+=dp[v];
        }
    }
    sb-=col[a];
    dp[a] = col[a];
    dp[a] = max(dp[a],sb);
}

int main()
{
    ios_base::sync_with_stdio(NULL);
    cin.tie(NULL);
    cout.tie(NULL);
    int n,a,b,ans = 0;
    cin >> n;
    for(int i = 0; i < n-1; i++) {
        cin >> a >> b;
        haha[a].push_back(b);
        haha[b].push_back(a);
    }
    for(int i = 1; i <= n; i++) {
        char a;
        cin >> a;
        if(a == '1') {
            col[i] = 1;
        }
    }
    for(int i = 1; i <= n; i++) {
        if(col[i]) {
            dfs(i,-1);
            int sb = 0;
            for(int v: haha[i]) {
                sb = max(dp[v],sb);
            }
            sb++;
            ans = max(ans,sb);
        }
    }
    cout << ans;
    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6492 KB Output is correct
2 Correct 3 ms 6664 KB Output is correct
3 Correct 3 ms 6492 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 3 ms 6492 KB Output is correct
6 Correct 3 ms 6608 KB Output is correct
7 Correct 3 ms 6488 KB Output is correct
8 Correct 3 ms 6492 KB Output is correct
9 Correct 3 ms 6488 KB Output is correct
10 Correct 3 ms 6492 KB Output is correct
11 Correct 3 ms 6732 KB Output is correct
12 Correct 3 ms 6492 KB Output is correct
13 Correct 3 ms 6596 KB Output is correct
14 Correct 3 ms 6492 KB Output is correct
15 Correct 3 ms 6492 KB Output is correct
16 Correct 3 ms 6748 KB Output is correct
17 Correct 3 ms 6640 KB Output is correct
18 Correct 4 ms 6736 KB Output is correct
19 Correct 3 ms 6492 KB Output is correct
20 Correct 3 ms 6492 KB Output is correct
21 Correct 3 ms 6492 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6492 KB Output is correct
2 Correct 3 ms 6664 KB Output is correct
3 Correct 3 ms 6492 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 3 ms 6492 KB Output is correct
6 Correct 3 ms 6608 KB Output is correct
7 Correct 3 ms 6488 KB Output is correct
8 Correct 3 ms 6492 KB Output is correct
9 Correct 3 ms 6488 KB Output is correct
10 Correct 3 ms 6492 KB Output is correct
11 Correct 3 ms 6732 KB Output is correct
12 Correct 3 ms 6492 KB Output is correct
13 Correct 3 ms 6596 KB Output is correct
14 Correct 3 ms 6492 KB Output is correct
15 Correct 3 ms 6492 KB Output is correct
16 Correct 3 ms 6748 KB Output is correct
17 Correct 3 ms 6640 KB Output is correct
18 Correct 4 ms 6736 KB Output is correct
19 Correct 3 ms 6492 KB Output is correct
20 Correct 3 ms 6492 KB Output is correct
21 Correct 3 ms 6492 KB Output is correct
22 Correct 40 ms 6748 KB Output is correct
23 Correct 33 ms 6744 KB Output is correct
24 Correct 28 ms 6748 KB Output is correct
25 Correct 19 ms 6824 KB Output is correct
26 Correct 11 ms 6748 KB Output is correct
27 Correct 6 ms 6748 KB Output is correct
28 Correct 4 ms 6748 KB Output is correct
29 Correct 60 ms 6748 KB Output is correct
30 Correct 28 ms 6744 KB Output is correct
31 Correct 34 ms 6744 KB Output is correct
32 Correct 20 ms 7000 KB Output is correct
33 Correct 35 ms 6748 KB Output is correct
34 Correct 21 ms 6820 KB Output is correct
35 Correct 13 ms 6820 KB Output is correct
36 Correct 7 ms 6748 KB Output is correct
37 Correct 22 ms 6744 KB Output is correct
38 Correct 18 ms 6744 KB Output is correct
39 Correct 40 ms 6748 KB Output is correct
40 Correct 22 ms 6748 KB Output is correct
41 Correct 13 ms 6748 KB Output is correct
42 Correct 20 ms 6748 KB Output is correct
43 Correct 7 ms 6748 KB Output is correct
44 Correct 35 ms 6748 KB Output is correct
45 Correct 28 ms 6744 KB Output is correct
46 Correct 19 ms 6856 KB Output is correct
47 Correct 13 ms 6748 KB Output is correct
48 Correct 36 ms 6748 KB Output is correct
49 Correct 37 ms 6748 KB Output is correct
50 Correct 36 ms 6744 KB Output is correct
51 Correct 37 ms 6744 KB Output is correct
52 Correct 33 ms 6748 KB Output is correct
53 Correct 25 ms 6748 KB Output is correct
54 Correct 35 ms 6748 KB Output is correct
55 Correct 34 ms 6744 KB Output is correct
56 Correct 3 ms 6748 KB Output is correct
57 Correct 3 ms 6748 KB Output is correct
58 Correct 19 ms 6836 KB Output is correct
59 Correct 19 ms 6748 KB Output is correct
60 Correct 3 ms 6748 KB Output is correct
61 Correct 3 ms 6748 KB Output is correct
62 Correct 4 ms 6744 KB Output is correct
63 Correct 28 ms 6748 KB Output is correct

Subtask #3
0.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6492 KB Output is correct
2 Correct 3 ms 6664 KB Output is correct
3 Correct 3 ms 6492 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 3 ms 6492 KB Output is correct
6 Correct 3 ms 6608 KB Output is correct
7 Correct 3 ms 6488 KB Output is correct
8 Correct 3 ms 6492 KB Output is correct
9 Correct 3 ms 6488 KB Output is correct
10 Correct 3 ms 6492 KB Output is correct
11 Correct 3 ms 6732 KB Output is correct
12 Correct 3 ms 6492 KB Output is correct
13 Correct 3 ms 6596 KB Output is correct
14 Correct 3 ms 6492 KB Output is correct
15 Correct 3 ms 6492 KB Output is correct
16 Correct 3 ms 6748 KB Output is correct
17 Correct 3 ms 6640 KB Output is correct
18 Correct 4 ms 6736 KB Output is correct
19 Correct 3 ms 6492 KB Output is correct
20 Correct 3 ms 6492 KB Output is correct
21 Correct 3 ms 6492 KB Output is correct
22 Correct 40 ms 6748 KB Output is correct
23 Correct 33 ms 6744 KB Output is correct
24 Correct 28 ms 6748 KB Output is correct
25 Correct 19 ms 6824 KB Output is correct
26 Correct 11 ms 6748 KB Output is correct
27 Correct 6 ms 6748 KB Output is correct
28 Correct 4 ms 6748 KB Output is correct
29 Correct 60 ms 6748 KB Output is correct
30 Correct 28 ms 6744 KB Output is correct
31 Correct 34 ms 6744 KB Output is correct
32 Correct 20 ms 7000 KB Output is correct
33 Correct 35 ms 6748 KB Output is correct
34 Correct 21 ms 6820 KB Output is correct
35 Correct 13 ms 6820 KB Output is correct
36 Correct 7 ms 6748 KB Output is correct
37 Correct 22 ms 6744 KB Output is correct
38 Correct 18 ms 6744 KB Output is correct
39 Correct 40 ms 6748 KB Output is correct
40 Correct 22 ms 6748 KB Output is correct
41 Correct 13 ms 6748 KB Output is correct
42 Correct 20 ms 6748 KB Output is correct
43 Correct 7 ms 6748 KB Output is correct
44 Correct 35 ms 6748 KB Output is correct
45 Correct 28 ms 6744 KB Output is correct
46 Correct 19 ms 6856 KB Output is correct
47 Correct 13 ms 6748 KB Output is correct
48 Correct 36 ms 6748 KB Output is correct
49 Correct 37 ms 6748 KB Output is correct
50 Correct 36 ms 6744 KB Output is correct
51 Correct 37 ms 6744 KB Output is correct
52 Correct 33 ms 6748 KB Output is correct
53 Correct 25 ms 6748 KB Output is correct
54 Correct 35 ms 6748 KB Output is correct
55 Correct 34 ms 6744 KB Output is correct
56 Correct 3 ms 6748 KB Output is correct
57 Correct 3 ms 6748 KB Output is correct
58 Correct 19 ms 6836 KB Output is correct
59 Correct 19 ms 6748 KB Output is correct
60 Correct 3 ms 6748 KB Output is correct
61 Correct 3 ms 6748 KB Output is correct
62 Correct 4 ms 6744 KB Output is correct
63 Correct 28 ms 6748 KB Output is correct
64 Execution timed out 1564 ms 15588 KB Time limit exceeded
65 Halted 0 ms 0 KB -