oj.uz

답안 #359338

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
359338 2021-01-26T22:28:14 Z eyangch Power Plant (JOI20_power) C++17
47 / 100
 1500 ms 40124 KB 
#include <bits/stdc++.h>
#define endl "\n"

using namespace std;

int N;
vector<int> graph[200000];
char s[200000];
int ans = 0;

int dfs(int id, int par){
    int p = s[id] - '0';
    int ret = p;
    int c = 0;
    int mxc = 0;
    for(int i : graph[id]){
        if(i == par) continue;
        int cur = dfs(i, id);
        if(cur == 0) continue;
        c++;
        mxc = max(mxc, cur);
        ret += cur;
    }
    if(p && c > 0){
        if(c == 1){
            ans = max(ans, ret);
            (--ret)--;
        }else{
            (--ret)--;
            ans = max({ans, ret, mxc+1});
        }
    }
    ans = max(ans, ret);
    return max(p, ret);
}

int32_t main(){
    ios::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> N;
    for(int i = 0; i < N-1; i++){
        int a, b; cin >> a >> b;
        graph[a-1].push_back(b-1);
        graph[b-1].push_back(a-1);
    }
    cin >> s;
    dfs(0, 0);
    cout << ans << endl;
}

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4972 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Correct 4 ms 5112 KB Output is correct
4 Correct 4 ms 5120 KB Output is correct
5 Correct 4 ms 4972 KB Output is correct
6 Correct 4 ms 4972 KB Output is correct
7 Correct 4 ms 4972 KB Output is correct
8 Correct 4 ms 4972 KB Output is correct
9 Correct 5 ms 4972 KB Output is correct
10 Correct 4 ms 4972 KB Output is correct
11 Correct 4 ms 4972 KB Output is correct
12 Correct 4 ms 4972 KB Output is correct
13 Correct 4 ms 4972 KB Output is correct
14 Correct 4 ms 4972 KB Output is correct
15 Correct 4 ms 4972 KB Output is correct
16 Correct 4 ms 4972 KB Output is correct
17 Correct 4 ms 4972 KB Output is correct
18 Correct 4 ms 4972 KB Output is correct
19 Correct 4 ms 4972 KB Output is correct
20 Correct 4 ms 4972 KB Output is correct
21 Correct 4 ms 4972 KB Output is correct

Subtask #2
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4972 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Correct 4 ms 5112 KB Output is correct
4 Correct 4 ms 5120 KB Output is correct
5 Correct 4 ms 4972 KB Output is correct
6 Correct 4 ms 4972 KB Output is correct
7 Correct 4 ms 4972 KB Output is correct
8 Correct 4 ms 4972 KB Output is correct
9 Correct 5 ms 4972 KB Output is correct
10 Correct 4 ms 4972 KB Output is correct
11 Correct 4 ms 4972 KB Output is correct
12 Correct 4 ms 4972 KB Output is correct
13 Correct 4 ms 4972 KB Output is correct
14 Correct 4 ms 4972 KB Output is correct
15 Correct 4 ms 4972 KB Output is correct
16 Correct 4 ms 4972 KB Output is correct
17 Correct 4 ms 4972 KB Output is correct
18 Correct 4 ms 4972 KB Output is correct
19 Correct 4 ms 4972 KB Output is correct
20 Correct 4 ms 4972 KB Output is correct
21 Correct 4 ms 4972 KB Output is correct
22 Correct 4 ms 5100 KB Output is correct
23 Correct 4 ms 5100 KB Output is correct
24 Correct 4 ms 5100 KB Output is correct
25 Correct 4 ms 5100 KB Output is correct
26 Correct 4 ms 5100 KB Output is correct
27 Correct 4 ms 5100 KB Output is correct
28 Correct 4 ms 5120 KB Output is correct
29 Correct 4 ms 5228 KB Output is correct
30 Correct 4 ms 5228 KB Output is correct
31 Correct 4 ms 5100 KB Output is correct
32 Correct 5 ms 5100 KB Output is correct
33 Correct 5 ms 5100 KB Output is correct
34 Correct 5 ms 5100 KB Output is correct
35 Correct 5 ms 5100 KB Output is correct
36 Correct 4 ms 5100 KB Output is correct
37 Correct 4 ms 5100 KB Output is correct
38 Correct 4 ms 5100 KB Output is correct
39 Correct 5 ms 5228 KB Output is correct
40 Correct 5 ms 5100 KB Output is correct
41 Correct 5 ms 5228 KB Output is correct
42 Correct 6 ms 5100 KB Output is correct
43 Correct 6 ms 5100 KB Output is correct
44 Correct 6 ms 5100 KB Output is correct
45 Correct 4 ms 5100 KB Output is correct
46 Correct 5 ms 5100 KB Output is correct
47 Correct 4 ms 5100 KB Output is correct
48 Correct 5 ms 5228 KB Output is correct
49 Correct 5 ms 5248 KB Output is correct
50 Correct 4 ms 5100 KB Output is correct
51 Correct 4 ms 5100 KB Output is correct
52 Correct 4 ms 5100 KB Output is correct
53 Correct 4 ms 5100 KB Output is correct
54 Correct 5 ms 5100 KB Output is correct
55 Correct 5 ms 5100 KB Output is correct
56 Correct 4 ms 5100 KB Output is correct
57 Correct 4 ms 5228 KB Output is correct
58 Correct 4 ms 5100 KB Output is correct
59 Correct 4 ms 5100 KB Output is correct
60 Correct 4 ms 5228 KB Output is correct
61 Correct 4 ms 5100 KB Output is correct
62 Correct 4 ms 5228 KB Output is correct
63 Correct 5 ms 5100 KB Output is correct

Subtask #3
0.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4972 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Correct 4 ms 5112 KB Output is correct
4 Correct 4 ms 5120 KB Output is correct
5 Correct 4 ms 4972 KB Output is correct
6 Correct 4 ms 4972 KB Output is correct
7 Correct 4 ms 4972 KB Output is correct
8 Correct 4 ms 4972 KB Output is correct
9 Correct 5 ms 4972 KB Output is correct
10 Correct 4 ms 4972 KB Output is correct
11 Correct 4 ms 4972 KB Output is correct
12 Correct 4 ms 4972 KB Output is correct
13 Correct 4 ms 4972 KB Output is correct
14 Correct 4 ms 4972 KB Output is correct
15 Correct 4 ms 4972 KB Output is correct
16 Correct 4 ms 4972 KB Output is correct
17 Correct 4 ms 4972 KB Output is correct
18 Correct 4 ms 4972 KB Output is correct
19 Correct 4 ms 4972 KB Output is correct
20 Correct 4 ms 4972 KB Output is correct
21 Correct 4 ms 4972 KB Output is correct
22 Correct 4 ms 5100 KB Output is correct
23 Correct 4 ms 5100 KB Output is correct
24 Correct 4 ms 5100 KB Output is correct
25 Correct 4 ms 5100 KB Output is correct
26 Correct 4 ms 5100 KB Output is correct
27 Correct 4 ms 5100 KB Output is correct
28 Correct 4 ms 5120 KB Output is correct
29 Correct 4 ms 5228 KB Output is correct
30 Correct 4 ms 5228 KB Output is correct
31 Correct 4 ms 5100 KB Output is correct
32 Correct 5 ms 5100 KB Output is correct
33 Correct 5 ms 5100 KB Output is correct
34 Correct 5 ms 5100 KB Output is correct
35 Correct 5 ms 5100 KB Output is correct
36 Correct 4 ms 5100 KB Output is correct
37 Correct 4 ms 5100 KB Output is correct
38 Correct 4 ms 5100 KB Output is correct
39 Correct 5 ms 5228 KB Output is correct
40 Correct 5 ms 5100 KB Output is correct
41 Correct 5 ms 5228 KB Output is correct
42 Correct 6 ms 5100 KB Output is correct
43 Correct 6 ms 5100 KB Output is correct
44 Correct 6 ms 5100 KB Output is correct
45 Correct 4 ms 5100 KB Output is correct
46 Correct 5 ms 5100 KB Output is correct
47 Correct 4 ms 5100 KB Output is correct
48 Correct 5 ms 5228 KB Output is correct
49 Correct 5 ms 5248 KB Output is correct
50 Correct 4 ms 5100 KB Output is correct
51 Correct 4 ms 5100 KB Output is correct
52 Correct 4 ms 5100 KB Output is correct
53 Correct 4 ms 5100 KB Output is correct
54 Correct 5 ms 5100 KB Output is correct
55 Correct 5 ms 5100 KB Output is correct
56 Correct 4 ms 5100 KB Output is correct
57 Correct 4 ms 5228 KB Output is correct
58 Correct 4 ms 5100 KB Output is correct
59 Correct 4 ms 5100 KB Output is correct
60 Correct 4 ms 5228 KB Output is correct
61 Correct 4 ms 5100 KB Output is correct
62 Correct 4 ms 5228 KB Output is correct
63 Correct 5 ms 5100 KB Output is correct
64 Execution timed out 1557 ms 40124 KB Time limit exceeded
65 Halted 0 ms 0 KB -