oj.uz

Submission #821764

# Submission time Handle Problem Language Result Execution time Memory
821764 2023-08-11T15:50:24 Z vjudge1 Power Plant (JOI20_power) C++14
100 / 100
 109 ms 28748 KB 
#include<bits/stdc++.h>
#define fi first
#define se second
#define ll long long
using namespace std ;
const int N = 2e5 ;
int n, s, ans, dp[N + 1] ;
char c[N + 1] ;
vector<int> v[N + 1] ;
void dfs(int city, int last)
{
    int sum = 0, mx = 0 ;
    for(int i : v[city])
    {
        if(i == last)
            continue ;
        dfs(i, city) ;
        sum += max(0, dp[i]) ;
        mx = max(mx, dp[i]) ;
    }
    dp[city] = max(c[city] - '0', sum - ((c[city] ^ 1) == '0')) ;
    if(c[city] == '1')
        ans = max(ans, mx + 1) ;
    ans = max(ans, dp[city]) ;
}
signed main()
{
    ios_base::sync_with_stdio( 0 ) ;
    cin.tie( 0 ) ;
    cout.tie( 0 ) ;
    cin >> n ;
    for(int i = 1 ; i < n ; i++)
    {
        int a, b ;
        cin >> a >> b ;
        v[a].push_back(b) ;
        v[b].push_back(a) ;
    }
    for(int i = 1 ; i <= n ; i++)
        cin >> c[i] ;
    dfs(1, 0) ;
    cout << ans ;
    return 0 ;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5120 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 2 ms 5028 KB Output is correct
8 Correct 2 ms 5024 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 2 ms 5028 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 5028 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 2 ms 4948 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5120 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 2 ms 5028 KB Output is correct
8 Correct 2 ms 5024 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 2 ms 5028 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 5028 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 2 ms 4948 KB Output is correct
22 Correct 3 ms 5036 KB Output is correct
23 Correct 3 ms 5076 KB Output is correct
24 Correct 3 ms 5076 KB Output is correct
25 Correct 3 ms 5076 KB Output is correct
26 Correct 3 ms 5076 KB Output is correct
27 Correct 3 ms 5076 KB Output is correct
28 Correct 3 ms 5076 KB Output is correct
29 Correct 3 ms 5204 KB Output is correct
30 Correct 3 ms 5164 KB Output is correct
31 Correct 3 ms 5068 KB Output is correct
32 Correct 3 ms 5020 KB Output is correct
33 Correct 3 ms 5040 KB Output is correct
34 Correct 3 ms 5036 KB Output is correct
35 Correct 3 ms 5076 KB Output is correct
36 Correct 3 ms 5076 KB Output is correct
37 Correct 3 ms 5076 KB Output is correct
38 Correct 3 ms 5076 KB Output is correct
39 Correct 3 ms 5076 KB Output is correct
40 Correct 3 ms 5076 KB Output is correct
41 Correct 3 ms 5164 KB Output is correct
42 Correct 3 ms 5072 KB Output is correct
43 Correct 3 ms 5076 KB Output is correct
44 Correct 3 ms 5100 KB Output is correct
45 Correct 3 ms 5076 KB Output is correct
46 Correct 3 ms 5076 KB Output is correct
47 Correct 3 ms 5032 KB Output is correct
48 Correct 3 ms 5076 KB Output is correct
49 Correct 3 ms 5076 KB Output is correct
50 Correct 3 ms 5076 KB Output is correct
51 Correct 3 ms 5076 KB Output is correct
52 Correct 2 ms 5076 KB Output is correct
53 Correct 3 ms 5076 KB Output is correct
54 Correct 3 ms 5040 KB Output is correct
55 Correct 3 ms 5076 KB Output is correct
56 Correct 3 ms 5076 KB Output is correct
57 Correct 3 ms 5204 KB Output is correct
58 Correct 2 ms 5076 KB Output is correct
59 Correct 3 ms 5040 KB Output is correct
60 Correct 3 ms 5076 KB Output is correct
61 Correct 3 ms 5036 KB Output is correct
62 Correct 3 ms 5164 KB Output is correct
63 Correct 3 ms 5076 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5120 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 2 ms 5028 KB Output is correct
8 Correct 2 ms 5024 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 2 ms 5028 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 5028 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 2 ms 4948 KB Output is correct
22 Correct 3 ms 5036 KB Output is correct
23 Correct 3 ms 5076 KB Output is correct
24 Correct 3 ms 5076 KB Output is correct
25 Correct 3 ms 5076 KB Output is correct
26 Correct 3 ms 5076 KB Output is correct
27 Correct 3 ms 5076 KB Output is correct
28 Correct 3 ms 5076 KB Output is correct
29 Correct 3 ms 5204 KB Output is correct
30 Correct 3 ms 5164 KB Output is correct
31 Correct 3 ms 5068 KB Output is correct
32 Correct 3 ms 5020 KB Output is correct
33 Correct 3 ms 5040 KB Output is correct
34 Correct 3 ms 5036 KB Output is correct
35 Correct 3 ms 5076 KB Output is correct
36 Correct 3 ms 5076 KB Output is correct
37 Correct 3 ms 5076 KB Output is correct
38 Correct 3 ms 5076 KB Output is correct
39 Correct 3 ms 5076 KB Output is correct
40 Correct 3 ms 5076 KB Output is correct
41 Correct 3 ms 5164 KB Output is correct
42 Correct 3 ms 5072 KB Output is correct
43 Correct 3 ms 5076 KB Output is correct
44 Correct 3 ms 5100 KB Output is correct
45 Correct 3 ms 5076 KB Output is correct
46 Correct 3 ms 5076 KB Output is correct
47 Correct 3 ms 5032 KB Output is correct
48 Correct 3 ms 5076 KB Output is correct
49 Correct 3 ms 5076 KB Output is correct
50 Correct 3 ms 5076 KB Output is correct
51 Correct 3 ms 5076 KB Output is correct
52 Correct 2 ms 5076 KB Output is correct
53 Correct 3 ms 5076 KB Output is correct
54 Correct 3 ms 5040 KB Output is correct
55 Correct 3 ms 5076 KB Output is correct
56 Correct 3 ms 5076 KB Output is correct
57 Correct 3 ms 5204 KB Output is correct
58 Correct 2 ms 5076 KB Output is correct
59 Correct 3 ms 5040 KB Output is correct
60 Correct 3 ms 5076 KB Output is correct
61 Correct 3 ms 5036 KB Output is correct
62 Correct 3 ms 5164 KB Output is correct
63 Correct 3 ms 5076 KB Output is correct
64 Correct 67 ms 15060 KB Output is correct
65 Correct 72 ms 15076 KB Output is correct
66 Correct 109 ms 15084 KB Output is correct
67 Correct 68 ms 15076 KB Output is correct
68 Correct 67 ms 15072 KB Output is correct
69 Correct 64 ms 14968 KB Output is correct
70 Correct 84 ms 15000 KB Output is correct
71 Correct 72 ms 14980 KB Output is correct
72 Correct 85 ms 15084 KB Output is correct
73 Correct 94 ms 27568 KB Output is correct
74 Correct 79 ms 27584 KB Output is correct
75 Correct 61 ms 14940 KB Output is correct
76 Correct 83 ms 14964 KB Output is correct
77 Correct 66 ms 14948 KB Output is correct
78 Correct 63 ms 14924 KB Output is correct
79 Correct 70 ms 14924 KB Output is correct
80 Correct 69 ms 14916 KB Output is correct
81 Correct 55 ms 15300 KB Output is correct
82 Correct 59 ms 15160 KB Output is correct
83 Correct 71 ms 20156 KB Output is correct
84 Correct 73 ms 22220 KB Output is correct
85 Correct 73 ms 21924 KB Output is correct
86 Correct 65 ms 16376 KB Output is correct
87 Correct 65 ms 15816 KB Output is correct
88 Correct 92 ms 16176 KB Output is correct
89 Correct 82 ms 16336 KB Output is correct
90 Correct 62 ms 16096 KB Output is correct
91 Correct 68 ms 16224 KB Output is correct
92 Correct 73 ms 16664 KB Output is correct
93 Correct 95 ms 18984 KB Output is correct
94 Correct 77 ms 20760 KB Output is correct
95 Correct 63 ms 19328 KB Output is correct
96 Correct 62 ms 17572 KB Output is correct
97 Correct 56 ms 16036 KB Output is correct
98 Correct 59 ms 15636 KB Output is correct
99 Correct 76 ms 15412 KB Output is correct
100 Correct 63 ms 18620 KB Output is correct
101 Correct 79 ms 16568 KB Output is correct
102 Correct 57 ms 15780 KB Output is correct
103 Correct 61 ms 15632 KB Output is correct
104 Correct 46 ms 15804 KB Output is correct
105 Correct 103 ms 24536 KB Output is correct
106 Correct 44 ms 15548 KB Output is correct
107 Correct 43 ms 15544 KB Output is correct
108 Correct 99 ms 28336 KB Output is correct
109 Correct 61 ms 15808 KB Output is correct
110 Correct 77 ms 28748 KB Output is correct
111 Correct 58 ms 14868 KB Output is correct