oj.uz

Submission #640172

# Submission time Handle Problem Language Result Execution time Memory
640172 2022-09-13T19:31:41 Z colossal_pepe Power Plant (JOI20_power) C++17
100 / 100
 548 ms 62496 KB 
#include <iostream>
#include <vector>
#include <map>
using namespace std;

int n;
vector<vector<int>> g;
string s;
vector<map<int, int>> dp;
vector<int> dp_sum;

int f(int a, int b) {
    return (s[a] == '1' ? max(1, dp_sum[a] - dp[a][b] - 1) : dp_sum[a] - dp[a][b]);
}

int dfs1(int u, int par) {
    dp[u][par] = 0;
    for (int v : g[u]) {
        if (v != par) {
            dp[u][v] = dfs1(v, u);
            dp_sum[u] += dp[u][v];
        }
    }
    return f(u, par);
}

void dfs2(int u, int par) {
    dp[u][par] = f(par, u);
    dp_sum[u] += dp[u][par];
    for (int v : g[u]) {
        if (v != par) dfs2(v, u);
    }
}

int solve() {
    dp.resize(n), dp_sum.resize(n, 0);
    for (int v : g[0]) {
        dp[0][v] += dfs1(v, 0);
        dp_sum[0] += dp[0][v];
    }
    for (int v : g[0]) {
        dfs2(v, 0);
    }
    int ans = 0;
    for (int u = 0; u < n; u++) {
        for (int v : g[u]) {
            ans = max(ans, f(u, v) + f(v, u));
        }
    }
    return ans;
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n;
    g.resize(n);
    for (int i = 0; i < n - 1; i++) {
        int a, b;
        cin >> a >> b;
        a--, b--;
        g[a].push_back(b);
        g[b].push_back(a);
    }
    cin >> s;
    cout << max(1, solve()) << '\n';
    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 316 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 316 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 316 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 320 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 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 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 316 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 316 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 316 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 320 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 2 ms 724 KB Output is correct
23 Correct 2 ms 724 KB Output is correct
24 Correct 2 ms 716 KB Output is correct
25 Correct 2 ms 636 KB Output is correct
26 Correct 2 ms 724 KB Output is correct
27 Correct 2 ms 700 KB Output is correct
28 Correct 2 ms 724 KB Output is correct
29 Correct 2 ms 852 KB Output is correct
30 Correct 2 ms 852 KB Output is correct
31 Correct 2 ms 716 KB Output is correct
32 Correct 2 ms 688 KB Output is correct
33 Correct 2 ms 724 KB Output is correct
34 Correct 2 ms 724 KB Output is correct
35 Correct 2 ms 716 KB Output is correct
36 Correct 2 ms 724 KB Output is correct
37 Correct 2 ms 724 KB Output is correct
38 Correct 3 ms 684 KB Output is correct
39 Correct 2 ms 724 KB Output is correct
40 Correct 2 ms 724 KB Output is correct
41 Correct 3 ms 724 KB Output is correct
42 Correct 2 ms 716 KB Output is correct
43 Correct 2 ms 724 KB Output is correct
44 Correct 2 ms 724 KB Output is correct
45 Correct 2 ms 724 KB Output is correct
46 Correct 2 ms 720 KB Output is correct
47 Correct 2 ms 724 KB Output is correct
48 Correct 3 ms 724 KB Output is correct
49 Correct 2 ms 840 KB Output is correct
50 Correct 2 ms 724 KB Output is correct
51 Correct 2 ms 684 KB Output is correct
52 Correct 3 ms 724 KB Output is correct
53 Correct 2 ms 724 KB Output is correct
54 Correct 3 ms 672 KB Output is correct
55 Correct 2 ms 724 KB Output is correct
56 Correct 2 ms 716 KB Output is correct
57 Correct 2 ms 852 KB Output is correct
58 Correct 2 ms 680 KB Output is correct
59 Correct 2 ms 724 KB Output is correct
60 Correct 2 ms 852 KB Output is correct
61 Correct 3 ms 712 KB Output is correct
62 Correct 2 ms 852 KB Output is correct
63 Correct 3 ms 724 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 316 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 316 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 316 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 320 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 2 ms 724 KB Output is correct
23 Correct 2 ms 724 KB Output is correct
24 Correct 2 ms 716 KB Output is correct
25 Correct 2 ms 636 KB Output is correct
26 Correct 2 ms 724 KB Output is correct
27 Correct 2 ms 700 KB Output is correct
28 Correct 2 ms 724 KB Output is correct
29 Correct 2 ms 852 KB Output is correct
30 Correct 2 ms 852 KB Output is correct
31 Correct 2 ms 716 KB Output is correct
32 Correct 2 ms 688 KB Output is correct
33 Correct 2 ms 724 KB Output is correct
34 Correct 2 ms 724 KB Output is correct
35 Correct 2 ms 716 KB Output is correct
36 Correct 2 ms 724 KB Output is correct
37 Correct 2 ms 724 KB Output is correct
38 Correct 3 ms 684 KB Output is correct
39 Correct 2 ms 724 KB Output is correct
40 Correct 2 ms 724 KB Output is correct
41 Correct 3 ms 724 KB Output is correct
42 Correct 2 ms 716 KB Output is correct
43 Correct 2 ms 724 KB Output is correct
44 Correct 2 ms 724 KB Output is correct
45 Correct 2 ms 724 KB Output is correct
46 Correct 2 ms 720 KB Output is correct
47 Correct 2 ms 724 KB Output is correct
48 Correct 3 ms 724 KB Output is correct
49 Correct 2 ms 840 KB Output is correct
50 Correct 2 ms 724 KB Output is correct
51 Correct 2 ms 684 KB Output is correct
52 Correct 3 ms 724 KB Output is correct
53 Correct 2 ms 724 KB Output is correct
54 Correct 3 ms 672 KB Output is correct
55 Correct 2 ms 724 KB Output is correct
56 Correct 2 ms 716 KB Output is correct
57 Correct 2 ms 852 KB Output is correct
58 Correct 2 ms 680 KB Output is correct
59 Correct 2 ms 724 KB Output is correct
60 Correct 2 ms 852 KB Output is correct
61 Correct 3 ms 712 KB Output is correct
62 Correct 2 ms 852 KB Output is correct
63 Correct 3 ms 724 KB Output is correct
64 Correct 311 ms 43184 KB Output is correct
65 Correct 293 ms 43280 KB Output is correct
66 Correct 339 ms 43252 KB Output is correct
67 Correct 328 ms 43272 KB Output is correct
68 Correct 317 ms 43276 KB Output is correct
69 Correct 329 ms 43268 KB Output is correct
70 Correct 300 ms 43300 KB Output is correct
71 Correct 310 ms 43268 KB Output is correct
72 Correct 305 ms 43232 KB Output is correct
73 Correct 353 ms 60852 KB Output is correct
74 Correct 385 ms 60892 KB Output is correct
75 Correct 337 ms 43092 KB Output is correct
76 Correct 312 ms 43148 KB Output is correct
77 Correct 295 ms 43144 KB Output is correct
78 Correct 321 ms 43132 KB Output is correct
79 Correct 317 ms 43052 KB Output is correct
80 Correct 322 ms 43120 KB Output is correct
81 Correct 438 ms 43516 KB Output is correct
82 Correct 346 ms 43408 KB Output is correct
83 Correct 328 ms 50400 KB Output is correct
84 Correct 317 ms 53412 KB Output is correct
85 Correct 327 ms 52960 KB Output is correct
86 Correct 318 ms 45160 KB Output is correct
87 Correct 294 ms 44328 KB Output is correct
88 Correct 378 ms 44856 KB Output is correct
89 Correct 392 ms 44788 KB Output is correct
90 Correct 351 ms 44476 KB Output is correct
91 Correct 348 ms 44716 KB Output is correct
92 Correct 367 ms 45292 KB Output is correct
93 Correct 391 ms 48732 KB Output is correct
94 Correct 390 ms 51008 KB Output is correct
95 Correct 326 ms 49268 KB Output is correct
96 Correct 357 ms 46880 KB Output is correct
97 Correct 317 ms 44592 KB Output is correct
98 Correct 297 ms 43876 KB Output is correct
99 Correct 313 ms 43612 KB Output is correct
100 Correct 379 ms 48068 KB Output is correct
101 Correct 349 ms 45260 KB Output is correct
102 Correct 332 ms 44148 KB Output is correct
103 Correct 308 ms 43872 KB Output is correct
104 Correct 548 ms 44056 KB Output is correct
105 Correct 367 ms 56596 KB Output is correct
106 Correct 523 ms 43980 KB Output is correct
107 Correct 521 ms 43856 KB Output is correct
108 Correct 343 ms 62036 KB Output is correct
109 Correct 510 ms 44096 KB Output is correct
110 Correct 355 ms 62496 KB Output is correct
111 Correct 277 ms 43124 KB Output is correct