답안 #640172

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
640172	2022-09-13T19:31:41 Z	colossal_pepe	Power Plant (JOI20_power)	C++17	100 / 100	548 ms	62496 KB

power

#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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

답안 #640172

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 41.0 / 41.0

Subtask #3 53.0 / 53.0

Subtask #1
6.0 / 6.0

Subtask #2
41.0 / 41.0

Subtask #3
53.0 / 53.0