oj.uz

Submission #720726

# Submission time Handle Problem Language Result Execution time Memory
720726 2023-04-09T06:57:07 Z joelgun14 Power Plant (JOI20_power) C++17
100 / 100
 240 ms 29212 KB 
#include <bits/stdc++.h>
using namespace std;
const int lim = 2e5 + 5;
vector<int> edges[lim];
bool gen[lim], vis[lim];
int res[lim];
int ans = 0;
void dfs(int nd = 1) {
    // ambil dr child, itu berarti boleh ambil dr semua di sum terus nanti dikurangi 1
    // ambil dr skrg doang -> tergantung gen state
    vis[nd] = 1;
    int sum = 0, mx = 0;
    for(auto i : edges[nd]) {
        if(!vis[i]) {
            dfs(i);
            sum += res[i];
            mx = max(mx, res[i]);
        }
    }
    if(!gen[nd]) {
        // then just merge aja :D
        // berarti lgsg get sum from all
        res[nd] = sum;
        //cout << sum << endl;
    }
    else {
        // kita harus rusak gen ini
        // atau buat gen ini as root
        // kalo buat gen as root, berarti choose 1 mx trus itu doang yg nyala
        // else sum - 1
        res[nd] = max(1, sum - 1);
        ans = max(ans, mx + 1);
        //cout << nd << " " << mx << " " << sum << endl;
    }
}
int main() {
    int n;
    cin >> n;
    for(int i = 1; i < n; ++i) {
        int u, v;
        cin >> u >> v;
        edges[u].push_back(v);
        edges[v].push_back(u);
    }
    string s;
    cin >> s;
    for(int i = 1; i <= n; ++i)
        gen[i] = s[i - 1] == '1';
    dfs(1);
    int mx = 0;
    for(int i = 1; i <= n; ++i)
        mx = max(res[i], mx);
    cout << max(mx, ans) << endl;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 4 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 5004 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 5004 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 4 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 5004 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 5004 KB Output is correct
22 Correct 5 ms 5076 KB Output is correct
23 Correct 4 ms 5076 KB Output is correct
24 Correct 4 ms 5016 KB Output is correct
25 Correct 5 ms 5020 KB Output is correct
26 Correct 5 ms 5012 KB Output is correct
27 Correct 5 ms 5076 KB Output is correct
28 Correct 6 ms 5076 KB Output is correct
29 Correct 5 ms 5204 KB Output is correct
30 Correct 5 ms 5204 KB Output is correct
31 Correct 5 ms 5076 KB Output is correct
32 Correct 4 ms 5076 KB Output is correct
33 Correct 4 ms 5076 KB Output is correct
34 Correct 4 ms 5072 KB Output is correct
35 Correct 4 ms 5076 KB Output is correct
36 Correct 4 ms 5076 KB Output is correct
37 Correct 4 ms 5076 KB Output is correct
38 Correct 5 ms 5076 KB Output is correct
39 Correct 6 ms 5076 KB Output is correct
40 Correct 4 ms 5144 KB Output is correct
41 Correct 5 ms 5076 KB Output is correct
42 Correct 4 ms 5076 KB Output is correct
43 Correct 4 ms 5076 KB Output is correct
44 Correct 5 ms 5144 KB Output is correct
45 Correct 4 ms 5076 KB Output is correct
46 Correct 4 ms 5076 KB Output is correct
47 Correct 4 ms 5012 KB Output is correct
48 Correct 4 ms 5176 KB Output is correct
49 Correct 4 ms 5188 KB Output is correct
50 Correct 4 ms 5148 KB Output is correct
51 Correct 4 ms 5132 KB Output is correct
52 Correct 4 ms 5076 KB Output is correct
53 Correct 6 ms 5076 KB Output is correct
54 Correct 6 ms 5080 KB Output is correct
55 Correct 5 ms 5020 KB Output is correct
56 Correct 5 ms 5076 KB Output is correct
57 Correct 5 ms 5204 KB Output is correct
58 Correct 5 ms 5076 KB Output is correct
59 Correct 5 ms 5024 KB Output is correct
60 Correct 5 ms 5076 KB Output is correct
61 Correct 5 ms 5076 KB Output is correct
62 Correct 6 ms 5204 KB Output is correct
63 Correct 5 ms 5076 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 4 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 5004 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 5004 KB Output is correct
22 Correct 5 ms 5076 KB Output is correct
23 Correct 4 ms 5076 KB Output is correct
24 Correct 4 ms 5016 KB Output is correct
25 Correct 5 ms 5020 KB Output is correct
26 Correct 5 ms 5012 KB Output is correct
27 Correct 5 ms 5076 KB Output is correct
28 Correct 6 ms 5076 KB Output is correct
29 Correct 5 ms 5204 KB Output is correct
30 Correct 5 ms 5204 KB Output is correct
31 Correct 5 ms 5076 KB Output is correct
32 Correct 4 ms 5076 KB Output is correct
33 Correct 4 ms 5076 KB Output is correct
34 Correct 4 ms 5072 KB Output is correct
35 Correct 4 ms 5076 KB Output is correct
36 Correct 4 ms 5076 KB Output is correct
37 Correct 4 ms 5076 KB Output is correct
38 Correct 5 ms 5076 KB Output is correct
39 Correct 6 ms 5076 KB Output is correct
40 Correct 4 ms 5144 KB Output is correct
41 Correct 5 ms 5076 KB Output is correct
42 Correct 4 ms 5076 KB Output is correct
43 Correct 4 ms 5076 KB Output is correct
44 Correct 5 ms 5144 KB Output is correct
45 Correct 4 ms 5076 KB Output is correct
46 Correct 4 ms 5076 KB Output is correct
47 Correct 4 ms 5012 KB Output is correct
48 Correct 4 ms 5176 KB Output is correct
49 Correct 4 ms 5188 KB Output is correct
50 Correct 4 ms 5148 KB Output is correct
51 Correct 4 ms 5132 KB Output is correct
52 Correct 4 ms 5076 KB Output is correct
53 Correct 6 ms 5076 KB Output is correct
54 Correct 6 ms 5080 KB Output is correct
55 Correct 5 ms 5020 KB Output is correct
56 Correct 5 ms 5076 KB Output is correct
57 Correct 5 ms 5204 KB Output is correct
58 Correct 5 ms 5076 KB Output is correct
59 Correct 5 ms 5024 KB Output is correct
60 Correct 5 ms 5076 KB Output is correct
61 Correct 5 ms 5076 KB Output is correct
62 Correct 6 ms 5204 KB Output is correct
63 Correct 5 ms 5076 KB Output is correct
64 Correct 218 ms 15612 KB Output is correct
65 Correct 235 ms 15560 KB Output is correct
66 Correct 226 ms 15704 KB Output is correct
67 Correct 202 ms 15584 KB Output is correct
68 Correct 221 ms 15472 KB Output is correct
69 Correct 204 ms 15576 KB Output is correct
70 Correct 210 ms 15644 KB Output is correct
71 Correct 220 ms 15468 KB Output is correct
72 Correct 199 ms 15480 KB Output is correct
73 Correct 235 ms 28188 KB Output is correct
74 Correct 233 ms 28152 KB Output is correct
75 Correct 223 ms 15468 KB Output is correct
76 Correct 188 ms 15364 KB Output is correct
77 Correct 227 ms 15456 KB Output is correct
78 Correct 222 ms 15560 KB Output is correct
79 Correct 227 ms 15356 KB Output is correct
80 Correct 205 ms 15472 KB Output is correct
81 Correct 190 ms 15820 KB Output is correct
82 Correct 189 ms 15700 KB Output is correct
83 Correct 202 ms 20688 KB Output is correct
84 Correct 196 ms 22784 KB Output is correct
85 Correct 216 ms 22544 KB Output is correct
86 Correct 205 ms 16940 KB Output is correct
87 Correct 193 ms 16372 KB Output is correct
88 Correct 231 ms 16800 KB Output is correct
89 Correct 184 ms 16720 KB Output is correct
90 Correct 210 ms 16684 KB Output is correct
91 Correct 211 ms 16720 KB Output is correct
92 Correct 189 ms 17056 KB Output is correct
93 Correct 203 ms 19492 KB Output is correct
94 Correct 181 ms 21232 KB Output is correct
95 Correct 191 ms 19872 KB Output is correct
96 Correct 184 ms 18064 KB Output is correct
97 Correct 194 ms 16552 KB Output is correct
98 Correct 221 ms 16352 KB Output is correct
99 Correct 190 ms 15896 KB Output is correct
100 Correct 194 ms 19056 KB Output is correct
101 Correct 221 ms 17084 KB Output is correct
102 Correct 174 ms 16336 KB Output is correct
103 Correct 208 ms 16124 KB Output is correct
104 Correct 165 ms 16372 KB Output is correct
105 Correct 209 ms 25008 KB Output is correct
106 Correct 169 ms 16216 KB Output is correct
107 Correct 149 ms 16184 KB Output is correct
108 Correct 217 ms 29020 KB Output is correct
109 Correct 180 ms 16372 KB Output is correct
110 Correct 240 ms 29212 KB Output is correct
111 Correct 214 ms 15392 KB Output is correct