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Submission #766756

# Submission time Handle Problem Language Result Execution time Memory
766756 2023-06-26T06:42:42 Z Dorost Power Plant (JOI20_power) C++17
100 / 100
 111 ms 29472 KB 
/*  * In the name of GOD  */

#include "bits/stdc++.h"

using namespace std;

typedef long long ll;
typedef pair <int, int> pii;
#define F first
#define S second
#define mk make_pair
const int N = 201234;
vector <int> g[N];
int dp[N][2];
bool f[N];

void dfs (int v, int p = -1) {
    if (f[v]) {
        dp[v][1] = 1;
        dp[v][0] = 1;
    }
    int sum1 = 0;
    for (int u : g[v]) {
        if (u != p) {
            dfs (u, v);
            dp[v][0] = max(dp[u][0], dp[v][0]);
            if (f[v])
                dp[v][0] = max(dp[u][1] + 1, dp[v][0]);
            sum1 += dp[u][1];
        }
    }
    if (f[v]) {
        dp[v][0] = max(dp[v][0], sum1 - 1);
        dp[v][1] = max(dp[v][1], sum1 - 1);
    } else {
        dp[v][1] = max(dp[v][1], sum1);
        dp[v][0] = max(dp[v][0], sum1);
    }
}

int32_t main() {
    ios::sync_with_stdio(false);
    cin.tie();
    cout.tie();
    int n;
    cin >> n;
    for (int i = 0; i < n - 1; i++) {
        int u, v;
        cin >> u >> v;
        g[u].push_back(v);
        g[v].push_back(u);
    }
    for (int i = 1; i <= n; i++) {
        char c;
        cin >> c;
        f[i] = (c - '0');
    }
    dfs (1);
    cout << dp[1][0];
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 3 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 2 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 2 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 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 3 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 2 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 2 ms 4948 KB Output is correct
21 Correct 2 ms 4948 KB Output is correct
22 Correct 3 ms 5076 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 5012 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 5204 KB Output is correct
31 Correct 3 ms 5076 KB Output is correct
32 Correct 3 ms 5076 KB Output is correct
33 Correct 3 ms 5076 KB Output is correct
34 Correct 3 ms 5076 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 5076 KB Output is correct
42 Correct 3 ms 5076 KB Output is correct
43 Correct 3 ms 5076 KB Output is correct
44 Correct 3 ms 5076 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 5076 KB Output is correct
48 Correct 3 ms 5204 KB Output is correct
49 Correct 3 ms 5204 KB Output is correct
50 Correct 2 ms 5076 KB Output is correct
51 Correct 3 ms 5076 KB Output is correct
52 Correct 3 ms 5076 KB Output is correct
53 Correct 3 ms 5076 KB Output is correct
54 Correct 3 ms 5076 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 3 ms 5076 KB Output is correct
59 Correct 3 ms 5076 KB Output is correct
60 Correct 3 ms 5204 KB Output is correct
61 Correct 3 ms 5076 KB Output is correct
62 Correct 3 ms 5204 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 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 3 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 2 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 2 ms 4948 KB Output is correct
21 Correct 2 ms 4948 KB Output is correct
22 Correct 3 ms 5076 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 5012 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 5204 KB Output is correct
31 Correct 3 ms 5076 KB Output is correct
32 Correct 3 ms 5076 KB Output is correct
33 Correct 3 ms 5076 KB Output is correct
34 Correct 3 ms 5076 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 5076 KB Output is correct
42 Correct 3 ms 5076 KB Output is correct
43 Correct 3 ms 5076 KB Output is correct
44 Correct 3 ms 5076 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 5076 KB Output is correct
48 Correct 3 ms 5204 KB Output is correct
49 Correct 3 ms 5204 KB Output is correct
50 Correct 2 ms 5076 KB Output is correct
51 Correct 3 ms 5076 KB Output is correct
52 Correct 3 ms 5076 KB Output is correct
53 Correct 3 ms 5076 KB Output is correct
54 Correct 3 ms 5076 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 3 ms 5076 KB Output is correct
59 Correct 3 ms 5076 KB Output is correct
60 Correct 3 ms 5204 KB Output is correct
61 Correct 3 ms 5076 KB Output is correct
62 Correct 3 ms 5204 KB Output is correct
63 Correct 3 ms 5076 KB Output is correct
64 Correct 69 ms 15844 KB Output is correct
65 Correct 69 ms 15896 KB Output is correct
66 Correct 70 ms 15832 KB Output is correct
67 Correct 69 ms 15816 KB Output is correct
68 Correct 70 ms 15764 KB Output is correct
69 Correct 83 ms 15852 KB Output is correct
70 Correct 72 ms 15824 KB Output is correct
71 Correct 79 ms 15836 KB Output is correct
72 Correct 71 ms 15876 KB Output is correct
73 Correct 90 ms 28492 KB Output is correct
74 Correct 95 ms 28348 KB Output is correct
75 Correct 69 ms 15700 KB Output is correct
76 Correct 69 ms 15692 KB Output is correct
77 Correct 76 ms 15708 KB Output is correct
78 Correct 71 ms 15692 KB Output is correct
79 Correct 70 ms 15664 KB Output is correct
80 Correct 74 ms 15700 KB Output is correct
81 Correct 63 ms 16132 KB Output is correct
82 Correct 77 ms 15884 KB Output is correct
83 Correct 75 ms 20888 KB Output is correct
84 Correct 81 ms 23132 KB Output is correct
85 Correct 97 ms 23028 KB Output is correct
86 Correct 72 ms 17120 KB Output is correct
87 Correct 80 ms 16592 KB Output is correct
88 Correct 71 ms 17104 KB Output is correct
89 Correct 99 ms 17100 KB Output is correct
90 Correct 68 ms 16888 KB Output is correct
91 Correct 70 ms 17036 KB Output is correct
92 Correct 78 ms 17356 KB Output is correct
93 Correct 74 ms 19768 KB Output is correct
94 Correct 68 ms 21416 KB Output is correct
95 Correct 67 ms 20148 KB Output is correct
96 Correct 68 ms 18472 KB Output is correct
97 Correct 65 ms 16852 KB Output is correct
98 Correct 66 ms 16428 KB Output is correct
99 Correct 69 ms 16232 KB Output is correct
100 Correct 70 ms 19324 KB Output is correct
101 Correct 70 ms 17396 KB Output is correct
102 Correct 65 ms 16608 KB Output is correct
103 Correct 70 ms 16332 KB Output is correct
104 Correct 48 ms 16568 KB Output is correct
105 Correct 94 ms 25216 KB Output is correct
106 Correct 47 ms 16444 KB Output is correct
107 Correct 46 ms 16436 KB Output is correct
108 Correct 111 ms 29352 KB Output is correct
109 Correct 47 ms 16576 KB Output is correct
110 Correct 83 ms 29472 KB Output is correct
111 Correct 65 ms 15756 KB Output is correct