oj.uz

Submission #1028973

# Submission time Handle Problem Language Result Execution time Memory
1028973 2024-07-20T10:52:24 Z raphaelp Power Plant (JOI20_power) C++14
100 / 100
 191 ms 31524 KB 
#include <bits/stdc++.h>
using namespace std;
void dfs(int x, int p, vector<vector<int>> &AR, string &S, vector<int> &dp)
{
    for (int i = 0; i < AR[x].size(); i++)
    {
        if (AR[x][i] == p)
            continue;
        dfs(AR[x][i], x, AR, S, dp);
        dp[x] += dp[AR[x][i]];
    }
    if (S[x] == '1')
        dp[x] = max(dp[x] - 1, 1);
}
void dfs2(int x, int p, vector<vector<int>> &AR, vector<int> &dp, string &S, int val)
{
    dp[x] += val;
    int sum = 0, best = 0;
    for (int i = 0; i < AR[x].size(); i++)
    {
        if (AR[x][i] == p)
            continue;
        sum += dp[AR[x][i]];
        best = max(best, dp[AR[x][i]]);
    }
    sum += val;
    best = max(best, val);
    if (S[x] == '1')
    {
        dp[x] = max(sum - 1, best + 1);
    }
    for (int i = 0; i < AR[x].size(); i++)
    {
        if (AR[x][i] == p)
            continue;
        int next = sum - dp[AR[x][i]];
        if (S[x] == '1')
            next = max(next - 1, 1);
        dfs2(AR[x][i], x, AR, dp, S, next);
    }
}
int main()
{
    int N;
    cin >> N;
    vector<vector<int>> AR(N);
    for (int i = 0; i < N - 1; i++)
    {
        int a, b;
        cin >> a >> b;
        a--, b--;
        AR[a].push_back(b);
        AR[b].push_back(a);
    }
    string S;
    cin >> S;
    vector<int> dp(N);
    dfs(0, 0, AR, S, dp);
    dfs2(0, 0, AR, dp, S, 0);
    int best = 0;
    for (int i = 0; i < N; i++)
        best = max(best, dp[i]);
    cout << best;
}

Compilation message

power.cpp: In function 'void dfs(int, int, std::vector<std::vector<int> >&, std::string&, std::vector<int>&)':
power.cpp:5:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 |     for (int i = 0; i < AR[x].size(); i++)
      |                     ~~^~~~~~~~~~~~~~
power.cpp: In function 'void dfs2(int, int, std::vector<std::vector<int> >&, std::vector<int>&, std::string&, int)':
power.cpp:19:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for (int i = 0; i < AR[x].size(); i++)
      |                     ~~^~~~~~~~~~~~~~
power.cpp:32:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |     for (int i = 0; i < AR[x].size(); i++)
      |                     ~~^~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 436 KB Output is correct
13 Correct 1 ms 432 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 440 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 436 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 436 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 436 KB Output is correct
13 Correct 1 ms 432 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 440 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 436 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 436 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 448 KB Output is correct
27 Correct 2 ms 348 KB Output is correct
28 Correct 2 ms 348 KB Output is correct
29 Correct 1 ms 604 KB Output is correct
30 Correct 1 ms 604 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 600 KB Output is correct
33 Correct 2 ms 348 KB Output is correct
34 Correct 2 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 2 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 2 ms 444 KB Output is correct
39 Correct 1 ms 604 KB Output is correct
40 Correct 2 ms 604 KB Output is correct
41 Correct 1 ms 604 KB Output is correct
42 Correct 1 ms 604 KB Output is correct
43 Correct 2 ms 344 KB Output is correct
44 Correct 1 ms 604 KB Output is correct
45 Correct 1 ms 604 KB Output is correct
46 Correct 1 ms 604 KB Output is correct
47 Correct 1 ms 448 KB Output is correct
48 Correct 2 ms 664 KB Output is correct
49 Correct 1 ms 604 KB Output is correct
50 Correct 1 ms 604 KB Output is correct
51 Correct 1 ms 440 KB Output is correct
52 Correct 2 ms 548 KB Output is correct
53 Correct 1 ms 604 KB Output is correct
54 Correct 1 ms 568 KB Output is correct
55 Correct 1 ms 604 KB Output is correct
56 Correct 1 ms 348 KB Output is correct
57 Correct 1 ms 604 KB Output is correct
58 Correct 1 ms 348 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 2 ms 604 KB Output is correct
61 Correct 1 ms 348 KB Output is correct
62 Correct 1 ms 604 KB Output is correct
63 Correct 2 ms 348 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 436 KB Output is correct
13 Correct 1 ms 432 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 440 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 436 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 436 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 448 KB Output is correct
27 Correct 2 ms 348 KB Output is correct
28 Correct 2 ms 348 KB Output is correct
29 Correct 1 ms 604 KB Output is correct
30 Correct 1 ms 604 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 600 KB Output is correct
33 Correct 2 ms 348 KB Output is correct
34 Correct 2 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 2 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 2 ms 444 KB Output is correct
39 Correct 1 ms 604 KB Output is correct
40 Correct 2 ms 604 KB Output is correct
41 Correct 1 ms 604 KB Output is correct
42 Correct 1 ms 604 KB Output is correct
43 Correct 2 ms 344 KB Output is correct
44 Correct 1 ms 604 KB Output is correct
45 Correct 1 ms 604 KB Output is correct
46 Correct 1 ms 604 KB Output is correct
47 Correct 1 ms 448 KB Output is correct
48 Correct 2 ms 664 KB Output is correct
49 Correct 1 ms 604 KB Output is correct
50 Correct 1 ms 604 KB Output is correct
51 Correct 1 ms 440 KB Output is correct
52 Correct 2 ms 548 KB Output is correct
53 Correct 1 ms 604 KB Output is correct
54 Correct 1 ms 568 KB Output is correct
55 Correct 1 ms 604 KB Output is correct
56 Correct 1 ms 348 KB Output is correct
57 Correct 1 ms 604 KB Output is correct
58 Correct 1 ms 348 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 2 ms 604 KB Output is correct
61 Correct 1 ms 348 KB Output is correct
62 Correct 1 ms 604 KB Output is correct
63 Correct 2 ms 348 KB Output is correct
64 Correct 157 ms 15328 KB Output is correct
65 Correct 113 ms 15160 KB Output is correct
66 Correct 117 ms 15248 KB Output is correct
67 Correct 112 ms 15156 KB Output is correct
68 Correct 134 ms 15080 KB Output is correct
69 Correct 130 ms 15072 KB Output is correct
70 Correct 110 ms 15272 KB Output is correct
71 Correct 108 ms 15112 KB Output is correct
72 Correct 111 ms 15080 KB Output is correct
73 Correct 158 ms 30404 KB Output is correct
74 Correct 125 ms 30180 KB Output is correct
75 Correct 109 ms 15076 KB Output is correct
76 Correct 118 ms 15096 KB Output is correct
77 Correct 109 ms 15180 KB Output is correct
78 Correct 109 ms 15028 KB Output is correct
79 Correct 100 ms 15076 KB Output is correct
80 Correct 125 ms 15000 KB Output is correct
81 Correct 106 ms 15552 KB Output is correct
82 Correct 113 ms 15312 KB Output is correct
83 Correct 154 ms 21220 KB Output is correct
84 Correct 134 ms 23904 KB Output is correct
85 Correct 120 ms 23528 KB Output is correct
86 Correct 111 ms 16868 KB Output is correct
87 Correct 139 ms 16096 KB Output is correct
88 Correct 119 ms 16628 KB Output is correct
89 Correct 148 ms 16616 KB Output is correct
90 Correct 131 ms 16424 KB Output is correct
91 Correct 115 ms 16616 KB Output is correct
92 Correct 115 ms 16868 KB Output is correct
93 Correct 108 ms 19808 KB Output is correct
94 Correct 108 ms 21888 KB Output is correct
95 Correct 102 ms 20320 KB Output is correct
96 Correct 119 ms 18148 KB Output is correct
97 Correct 110 ms 16356 KB Output is correct
98 Correct 106 ms 15900 KB Output is correct
99 Correct 110 ms 15504 KB Output is correct
100 Correct 109 ms 19428 KB Output is correct
101 Correct 113 ms 16864 KB Output is correct
102 Correct 104 ms 16112 KB Output is correct
103 Correct 112 ms 15848 KB Output is correct
104 Correct 88 ms 16172 KB Output is correct
105 Correct 191 ms 26596 KB Output is correct
106 Correct 87 ms 15896 KB Output is correct
107 Correct 89 ms 15816 KB Output is correct
108 Correct 149 ms 31200 KB Output is correct
109 Correct 101 ms 15988 KB Output is correct
110 Correct 125 ms 31524 KB Output is correct
111 Correct 100 ms 15072 KB Output is correct