oj.uz

Submission #702350

# Submission time Handle Problem Language Result Execution time Memory
702350 2023-02-23T15:58:12 Z leeh18 Power Plant (JOI20_power) C++17
100 / 100
 198 ms 33672 KB 
#include <bits/stdc++.h>
using namespace std;

int main() {
    cin.tie(0)->sync_with_stdio(0);
    int n;
    cin >> n;
    vector<vector<int>> adj(n);
    for (auto i = 0; i < n - 1; ++i) {
        int u, v;
        cin >> u >> v;
        --u, --v;
        adj[u].emplace_back(v);
        adj[v].emplace_back(u);
    }
    vector<bool> s(n);
    auto ans = 0;
    for (auto i = 0; i < n; ++i) {
        char c;
        cin >> c;
        s[i] = (c == '1');
        ans += int(s[i]);
    }
    ans = min(ans, 2);
    vector<int> dp(n), sum(n);
    auto f = [&](auto self, int u, int p) -> int {
        for (auto v : adj[u]) {
            if (v != p) {
                sum[u] += self(self, v, u);
            }
        }
        dp[u] = (s[u] ? max(sum[u] - 1, 1) : sum[u]);
        return dp[u];
    };
    f(f, 0, 0);
    vector<int> dp_reroot(n), sum_reroot(n);
    auto f_reroot = [&](auto self, int u, int p) -> void {
        if (u == p) {
            dp_reroot[u] = dp[u];
            sum_reroot[u] = sum[u];
        } else {
            sum_reroot[u] = sum[u] + (s[p] ? max(sum_reroot[p] - sum[u] - 1, 1)
                                           : sum_reroot[p] - sum[u]);
            dp_reroot[u] = (s[u] ? max(sum_reroot[u] - 1, 1) : sum_reroot[u]);
        }
        for (auto v : adj[u]) {
            if (v != p) {
                self(self, v, u);
            }
        }
    };
    f_reroot(f_reroot, 0, 0);
    ans = max(ans, *max_element(begin(dp_reroot), end(dp_reroot)));
    cout << ans << "\n";
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 320 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 320 KB Output is correct
5 Correct 0 ms 320 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 320 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 320 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 316 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 320 KB Output is correct
21 Correct 1 ms 212 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 320 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 320 KB Output is correct
5 Correct 0 ms 320 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 320 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 320 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 316 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 320 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 456 KB Output is correct
24 Correct 1 ms 464 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 2 ms 468 KB Output is correct
28 Correct 2 ms 428 KB Output is correct
29 Correct 2 ms 556 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 1 ms 468 KB Output is correct
33 Correct 1 ms 460 KB Output is correct
34 Correct 2 ms 468 KB Output is correct
35 Correct 1 ms 468 KB Output is correct
36 Correct 1 ms 460 KB Output is correct
37 Correct 1 ms 468 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 2 ms 456 KB Output is correct
41 Correct 2 ms 460 KB Output is correct
42 Correct 1 ms 468 KB Output is correct
43 Correct 1 ms 468 KB Output is correct
44 Correct 1 ms 460 KB Output is correct
45 Correct 1 ms 464 KB Output is correct
46 Correct 2 ms 468 KB Output is correct
47 Correct 2 ms 460 KB Output is correct
48 Correct 1 ms 464 KB Output is correct
49 Correct 1 ms 460 KB Output is correct
50 Correct 2 ms 468 KB Output is correct
51 Correct 1 ms 468 KB Output is correct
52 Correct 1 ms 468 KB Output is correct
53 Correct 1 ms 468 KB Output is correct
54 Correct 1 ms 464 KB Output is correct
55 Correct 1 ms 468 KB Output is correct
56 Correct 1 ms 468 KB Output is correct
57 Correct 1 ms 584 KB Output is correct
58 Correct 1 ms 460 KB Output is correct
59 Correct 1 ms 460 KB Output is correct
60 Correct 1 ms 556 KB Output is correct
61 Correct 1 ms 468 KB Output is correct
62 Correct 1 ms 596 KB Output is correct
63 Correct 1 ms 468 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 320 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 320 KB Output is correct
5 Correct 0 ms 320 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 320 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 320 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 316 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 320 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 456 KB Output is correct
24 Correct 1 ms 464 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 2 ms 468 KB Output is correct
28 Correct 2 ms 428 KB Output is correct
29 Correct 2 ms 556 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 1 ms 468 KB Output is correct
33 Correct 1 ms 460 KB Output is correct
34 Correct 2 ms 468 KB Output is correct
35 Correct 1 ms 468 KB Output is correct
36 Correct 1 ms 460 KB Output is correct
37 Correct 1 ms 468 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 2 ms 456 KB Output is correct
41 Correct 2 ms 460 KB Output is correct
42 Correct 1 ms 468 KB Output is correct
43 Correct 1 ms 468 KB Output is correct
44 Correct 1 ms 460 KB Output is correct
45 Correct 1 ms 464 KB Output is correct
46 Correct 2 ms 468 KB Output is correct
47 Correct 2 ms 460 KB Output is correct
48 Correct 1 ms 464 KB Output is correct
49 Correct 1 ms 460 KB Output is correct
50 Correct 2 ms 468 KB Output is correct
51 Correct 1 ms 468 KB Output is correct
52 Correct 1 ms 468 KB Output is correct
53 Correct 1 ms 468 KB Output is correct
54 Correct 1 ms 464 KB Output is correct
55 Correct 1 ms 468 KB Output is correct
56 Correct 1 ms 468 KB Output is correct
57 Correct 1 ms 584 KB Output is correct
58 Correct 1 ms 460 KB Output is correct
59 Correct 1 ms 460 KB Output is correct
60 Correct 1 ms 556 KB Output is correct
61 Correct 1 ms 468 KB Output is correct
62 Correct 1 ms 596 KB Output is correct
63 Correct 1 ms 468 KB Output is correct
64 Correct 170 ms 15036 KB Output is correct
65 Correct 171 ms 17180 KB Output is correct
66 Correct 145 ms 17264 KB Output is correct
67 Correct 150 ms 17228 KB Output is correct
68 Correct 152 ms 17280 KB Output is correct
69 Correct 135 ms 17264 KB Output is correct
70 Correct 198 ms 17276 KB Output is correct
71 Correct 141 ms 17356 KB Output is correct
72 Correct 168 ms 17228 KB Output is correct
73 Correct 191 ms 32428 KB Output is correct
74 Correct 167 ms 32256 KB Output is correct
75 Correct 136 ms 17108 KB Output is correct
76 Correct 142 ms 17140 KB Output is correct
77 Correct 162 ms 17100 KB Output is correct
78 Correct 150 ms 17360 KB Output is correct
79 Correct 170 ms 17096 KB Output is correct
80 Correct 151 ms 17096 KB Output is correct
81 Correct 127 ms 17604 KB Output is correct
82 Correct 138 ms 17368 KB Output is correct
83 Correct 174 ms 23336 KB Output is correct
84 Correct 159 ms 25932 KB Output is correct
85 Correct 161 ms 25532 KB Output is correct
86 Correct 141 ms 18896 KB Output is correct
87 Correct 165 ms 18076 KB Output is correct
88 Correct 148 ms 18512 KB Output is correct
89 Correct 136 ms 18528 KB Output is correct
90 Correct 126 ms 18384 KB Output is correct
91 Correct 145 ms 18616 KB Output is correct
92 Correct 152 ms 19032 KB Output is correct
93 Correct 125 ms 21880 KB Output is correct
94 Correct 133 ms 23868 KB Output is correct
95 Correct 121 ms 22344 KB Output is correct
96 Correct 160 ms 20328 KB Output is correct
97 Correct 128 ms 18360 KB Output is correct
98 Correct 127 ms 17768 KB Output is correct
99 Correct 138 ms 17620 KB Output is correct
100 Correct 146 ms 21432 KB Output is correct
101 Correct 150 ms 18992 KB Output is correct
102 Correct 131 ms 18100 KB Output is correct
103 Correct 144 ms 17748 KB Output is correct
104 Correct 88 ms 18060 KB Output is correct
105 Correct 173 ms 28528 KB Output is correct
106 Correct 97 ms 17844 KB Output is correct
107 Correct 75 ms 17768 KB Output is correct
108 Correct 159 ms 33244 KB Output is correct
109 Correct 75 ms 18036 KB Output is correct
110 Correct 165 ms 33672 KB Output is correct
111 Correct 155 ms 17156 KB Output is correct