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Submission #516585

# Submission time Handle Problem Language Result Execution time Memory
516585 2022-01-21T14:02:30 Z Cross_Ratio Power Plant (JOI20_power) C++14
100 / 100
 154 ms 27148 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;
vector<vector<int> > adj;
int DP[200005];
bool type[200005];
int ans = 0;
void dfs(int c, int p) {
    int sum = 0;
    DP[c] = type[c] ? 1 : 0;
    for(int n : adj[c]) {
        if(n==p) continue;
        dfs(n,c);
        sum += DP[n];
        ans = max(ans, DP[n] + DP[c]);
    }
    DP[c] = max(DP[c],sum-DP[c]);
    ans = max(ans, DP[c]);
}
signed main() {
    cin.sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int N;
    cin >> N;
    int i;
    adj.resize(N);
    for(i=0;i<N-1;i++) {
        int a, b;
        cin >>a  >> b;
        adj[a-1].push_back(b-1);
        adj[b-1].push_back(a-1);
    }
    string s;
    cin >> s;
    for(i=0;i<N;i++) type[i] = s[i] == '1';
    dfs(0, -1);
    cout << ans;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 0 ms 204 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 1 ms 460 KB Output is correct
23 Correct 1 ms 460 KB Output is correct
24 Correct 1 ms 460 KB Output is correct
25 Correct 1 ms 460 KB Output is correct
26 Correct 1 ms 460 KB Output is correct
27 Correct 1 ms 460 KB Output is correct
28 Correct 1 ms 460 KB Output is correct
29 Correct 1 ms 460 KB Output is correct
30 Correct 1 ms 460 KB Output is correct
31 Correct 2 ms 460 KB Output is correct
32 Correct 1 ms 412 KB Output is correct
33 Correct 1 ms 460 KB Output is correct
34 Correct 1 ms 460 KB Output is correct
35 Correct 1 ms 460 KB Output is correct
36 Correct 1 ms 460 KB Output is correct
37 Correct 1 ms 460 KB Output is correct
38 Correct 1 ms 460 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 1 ms 460 KB Output is correct
41 Correct 1 ms 460 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 2 ms 440 KB Output is correct
44 Correct 1 ms 460 KB Output is correct
45 Correct 1 ms 460 KB Output is correct
46 Correct 1 ms 460 KB Output is correct
47 Correct 1 ms 460 KB Output is correct
48 Correct 1 ms 460 KB Output is correct
49 Correct 1 ms 460 KB Output is correct
50 Correct 1 ms 460 KB Output is correct
51 Correct 1 ms 460 KB Output is correct
52 Correct 1 ms 388 KB Output is correct
53 Correct 1 ms 460 KB Output is correct
54 Correct 1 ms 460 KB Output is correct
55 Correct 2 ms 460 KB Output is correct
56 Correct 1 ms 460 KB Output is correct
57 Correct 2 ms 588 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 460 KB Output is correct
61 Correct 1 ms 460 KB Output is correct
62 Correct 1 ms 460 KB Output is correct
63 Correct 1 ms 460 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 1 ms 460 KB Output is correct
23 Correct 1 ms 460 KB Output is correct
24 Correct 1 ms 460 KB Output is correct
25 Correct 1 ms 460 KB Output is correct
26 Correct 1 ms 460 KB Output is correct
27 Correct 1 ms 460 KB Output is correct
28 Correct 1 ms 460 KB Output is correct
29 Correct 1 ms 460 KB Output is correct
30 Correct 1 ms 460 KB Output is correct
31 Correct 2 ms 460 KB Output is correct
32 Correct 1 ms 412 KB Output is correct
33 Correct 1 ms 460 KB Output is correct
34 Correct 1 ms 460 KB Output is correct
35 Correct 1 ms 460 KB Output is correct
36 Correct 1 ms 460 KB Output is correct
37 Correct 1 ms 460 KB Output is correct
38 Correct 1 ms 460 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 1 ms 460 KB Output is correct
41 Correct 1 ms 460 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 2 ms 440 KB Output is correct
44 Correct 1 ms 460 KB Output is correct
45 Correct 1 ms 460 KB Output is correct
46 Correct 1 ms 460 KB Output is correct
47 Correct 1 ms 460 KB Output is correct
48 Correct 1 ms 460 KB Output is correct
49 Correct 1 ms 460 KB Output is correct
50 Correct 1 ms 460 KB Output is correct
51 Correct 1 ms 460 KB Output is correct
52 Correct 1 ms 388 KB Output is correct
53 Correct 1 ms 460 KB Output is correct
54 Correct 1 ms 460 KB Output is correct
55 Correct 2 ms 460 KB Output is correct
56 Correct 1 ms 460 KB Output is correct
57 Correct 2 ms 588 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 460 KB Output is correct
61 Correct 1 ms 460 KB Output is correct
62 Correct 1 ms 460 KB Output is correct
63 Correct 1 ms 460 KB Output is correct
64 Correct 111 ms 14344 KB Output is correct
65 Correct 127 ms 14420 KB Output is correct
66 Correct 120 ms 14516 KB Output is correct
67 Correct 116 ms 14336 KB Output is correct
68 Correct 120 ms 14340 KB Output is correct
69 Correct 112 ms 14388 KB Output is correct
70 Correct 116 ms 14392 KB Output is correct
71 Correct 154 ms 14376 KB Output is correct
72 Correct 127 ms 14384 KB Output is correct
73 Correct 122 ms 26060 KB Output is correct
74 Correct 137 ms 25960 KB Output is correct
75 Correct 120 ms 15596 KB Output is correct
76 Correct 143 ms 15624 KB Output is correct
77 Correct 120 ms 14392 KB Output is correct
78 Correct 118 ms 14372 KB Output is correct
79 Correct 129 ms 14344 KB Output is correct
80 Correct 116 ms 14340 KB Output is correct
81 Correct 116 ms 14500 KB Output is correct
82 Correct 112 ms 14480 KB Output is correct
83 Correct 115 ms 19416 KB Output is correct
84 Correct 135 ms 21576 KB Output is correct
85 Correct 135 ms 21296 KB Output is correct
86 Correct 110 ms 15768 KB Output is correct
87 Correct 108 ms 15160 KB Output is correct
88 Correct 102 ms 15216 KB Output is correct
89 Correct 121 ms 15432 KB Output is correct
90 Correct 115 ms 15112 KB Output is correct
91 Correct 102 ms 15292 KB Output is correct
92 Correct 107 ms 15676 KB Output is correct
93 Correct 96 ms 17968 KB Output is correct
94 Correct 125 ms 19680 KB Output is correct
95 Correct 117 ms 18268 KB Output is correct
96 Correct 116 ms 16384 KB Output is correct
97 Correct 111 ms 14948 KB Output is correct
98 Correct 124 ms 14596 KB Output is correct
99 Correct 147 ms 14620 KB Output is correct
100 Correct 139 ms 17336 KB Output is correct
101 Correct 111 ms 15360 KB Output is correct
102 Correct 101 ms 14612 KB Output is correct
103 Correct 141 ms 14644 KB Output is correct
104 Correct 68 ms 14904 KB Output is correct
105 Correct 120 ms 22876 KB Output is correct
106 Correct 66 ms 15036 KB Output is correct
107 Correct 65 ms 15028 KB Output is correct
108 Correct 144 ms 26724 KB Output is correct
109 Correct 71 ms 14928 KB Output is correct
110 Correct 122 ms 27148 KB Output is correct
111 Correct 114 ms 14312 KB Output is correct