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Submission #1098202

# Submission time Handle Problem Language Result Execution time Memory
1098202 2024-10-09T06:16:32 Z LilPluton Power Plant (JOI20_power) C++14
100 / 100
 184 ms 54812 KB 
#include <bits/stdc++.h>
using namespace std;
const int sz = 1e6 + 5;
#define int long long
int dx[] = {0, 0, 1, -1};
int dy[] = {1, -1, 0, 0};

struct DSU{

    vector<int>e;
    DSU(int n){
        e.assign(n + 1, -1);
    }
    int _find(int v){
        if(e[v] < 0){
            return v;
        }
        return e[v] = _find(e[v]);
    }
    int _union(int u,int v){
        u = _find(u);
        v = _find(v);
        if(u != v){
            if(e[u] > e[v]){
                swap(u, v);
            }
            e[u] += e[v];
            e[v] = u;
            return 1;
        }
        return 0;
    }

};
string s;
int n, res;
vector<vector<int>>v(sz);
vector<int>dp(sz);
void dfs(int u,int p){
    int sum = 0;
    int mx = 0;
    for(auto i : v[u]){
        if(i == p){
            continue;
        }
        dfs(i, u);
        sum += dp[i];
        mx = max(mx, dp[i]);
    }
    dp[u] = max((int)(s[u] == '1'), sum - (s[u] == '1'));
    res = max(res, sum - (int)(s[u] == '1'));
    res = max(res, mx + (int)(s[u] == '1'));   
}

void test_case(int testcase){
    cin >> n;
    for(int i = 0; i < n - 1; ++i){
        int a, b;
        cin >> a >> b;
        v[a].push_back(b);
        v[b].push_back(a);
    }
    cin >> s;
    s = '#' + s;
    dfs(1, -1);
    cout << res << endl;

}

signed main(){
    int T = 1;
    for(int test = 1; test <= T; ++test){
        test_case(test);
    } 
}

/*
    
*/

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 31580 KB Output is correct
2 Correct 13 ms 31580 KB Output is correct
3 Correct 15 ms 31580 KB Output is correct
4 Correct 14 ms 31764 KB Output is correct
5 Correct 13 ms 31580 KB Output is correct
6 Correct 13 ms 31528 KB Output is correct
7 Correct 14 ms 31576 KB Output is correct
8 Correct 15 ms 31580 KB Output is correct
9 Correct 15 ms 31580 KB Output is correct
10 Correct 13 ms 31516 KB Output is correct
11 Correct 17 ms 31580 KB Output is correct
12 Correct 16 ms 31580 KB Output is correct
13 Correct 14 ms 31580 KB Output is correct
14 Correct 14 ms 31548 KB Output is correct
15 Correct 14 ms 31580 KB Output is correct
16 Correct 15 ms 31580 KB Output is correct
17 Correct 14 ms 31636 KB Output is correct
18 Correct 15 ms 31580 KB Output is correct
19 Correct 14 ms 31636 KB Output is correct
20 Correct 14 ms 31580 KB Output is correct
21 Correct 13 ms 31576 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 31580 KB Output is correct
2 Correct 13 ms 31580 KB Output is correct
3 Correct 15 ms 31580 KB Output is correct
4 Correct 14 ms 31764 KB Output is correct
5 Correct 13 ms 31580 KB Output is correct
6 Correct 13 ms 31528 KB Output is correct
7 Correct 14 ms 31576 KB Output is correct
8 Correct 15 ms 31580 KB Output is correct
9 Correct 15 ms 31580 KB Output is correct
10 Correct 13 ms 31516 KB Output is correct
11 Correct 17 ms 31580 KB Output is correct
12 Correct 16 ms 31580 KB Output is correct
13 Correct 14 ms 31580 KB Output is correct
14 Correct 14 ms 31548 KB Output is correct
15 Correct 14 ms 31580 KB Output is correct
16 Correct 15 ms 31580 KB Output is correct
17 Correct 14 ms 31636 KB Output is correct
18 Correct 15 ms 31580 KB Output is correct
19 Correct 14 ms 31636 KB Output is correct
20 Correct 14 ms 31580 KB Output is correct
21 Correct 13 ms 31576 KB Output is correct
22 Correct 14 ms 31836 KB Output is correct
23 Correct 15 ms 31836 KB Output is correct
24 Correct 19 ms 31832 KB Output is correct
25 Correct 16 ms 31836 KB Output is correct
26 Correct 16 ms 31836 KB Output is correct
27 Correct 15 ms 31832 KB Output is correct
28 Correct 14 ms 31616 KB Output is correct
29 Correct 15 ms 31836 KB Output is correct
30 Correct 15 ms 31772 KB Output is correct
31 Correct 15 ms 31860 KB Output is correct
32 Correct 20 ms 31692 KB Output is correct
33 Correct 16 ms 31832 KB Output is correct
34 Correct 16 ms 31836 KB Output is correct
35 Correct 14 ms 31836 KB Output is correct
36 Correct 13 ms 31836 KB Output is correct
37 Correct 13 ms 31836 KB Output is correct
38 Correct 15 ms 31840 KB Output is correct
39 Correct 15 ms 31836 KB Output is correct
40 Correct 16 ms 31836 KB Output is correct
41 Correct 16 ms 31776 KB Output is correct
42 Correct 17 ms 31836 KB Output is correct
43 Correct 16 ms 31868 KB Output is correct
44 Correct 15 ms 31836 KB Output is correct
45 Correct 15 ms 31644 KB Output is correct
46 Correct 16 ms 31832 KB Output is correct
47 Correct 19 ms 31832 KB Output is correct
48 Correct 16 ms 31844 KB Output is correct
49 Correct 16 ms 31836 KB Output is correct
50 Correct 16 ms 31836 KB Output is correct
51 Correct 16 ms 32088 KB Output is correct
52 Correct 15 ms 31836 KB Output is correct
53 Correct 15 ms 31836 KB Output is correct
54 Correct 14 ms 31832 KB Output is correct
55 Correct 16 ms 31772 KB Output is correct
56 Correct 14 ms 31832 KB Output is correct
57 Correct 14 ms 31836 KB Output is correct
58 Correct 15 ms 31832 KB Output is correct
59 Correct 14 ms 31672 KB Output is correct
60 Correct 16 ms 31768 KB Output is correct
61 Correct 14 ms 31836 KB Output is correct
62 Correct 17 ms 31836 KB Output is correct
63 Correct 15 ms 31620 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 31580 KB Output is correct
2 Correct 13 ms 31580 KB Output is correct
3 Correct 15 ms 31580 KB Output is correct
4 Correct 14 ms 31764 KB Output is correct
5 Correct 13 ms 31580 KB Output is correct
6 Correct 13 ms 31528 KB Output is correct
7 Correct 14 ms 31576 KB Output is correct
8 Correct 15 ms 31580 KB Output is correct
9 Correct 15 ms 31580 KB Output is correct
10 Correct 13 ms 31516 KB Output is correct
11 Correct 17 ms 31580 KB Output is correct
12 Correct 16 ms 31580 KB Output is correct
13 Correct 14 ms 31580 KB Output is correct
14 Correct 14 ms 31548 KB Output is correct
15 Correct 14 ms 31580 KB Output is correct
16 Correct 15 ms 31580 KB Output is correct
17 Correct 14 ms 31636 KB Output is correct
18 Correct 15 ms 31580 KB Output is correct
19 Correct 14 ms 31636 KB Output is correct
20 Correct 14 ms 31580 KB Output is correct
21 Correct 13 ms 31576 KB Output is correct
22 Correct 14 ms 31836 KB Output is correct
23 Correct 15 ms 31836 KB Output is correct
24 Correct 19 ms 31832 KB Output is correct
25 Correct 16 ms 31836 KB Output is correct
26 Correct 16 ms 31836 KB Output is correct
27 Correct 15 ms 31832 KB Output is correct
28 Correct 14 ms 31616 KB Output is correct
29 Correct 15 ms 31836 KB Output is correct
30 Correct 15 ms 31772 KB Output is correct
31 Correct 15 ms 31860 KB Output is correct
32 Correct 20 ms 31692 KB Output is correct
33 Correct 16 ms 31832 KB Output is correct
34 Correct 16 ms 31836 KB Output is correct
35 Correct 14 ms 31836 KB Output is correct
36 Correct 13 ms 31836 KB Output is correct
37 Correct 13 ms 31836 KB Output is correct
38 Correct 15 ms 31840 KB Output is correct
39 Correct 15 ms 31836 KB Output is correct
40 Correct 16 ms 31836 KB Output is correct
41 Correct 16 ms 31776 KB Output is correct
42 Correct 17 ms 31836 KB Output is correct
43 Correct 16 ms 31868 KB Output is correct
44 Correct 15 ms 31836 KB Output is correct
45 Correct 15 ms 31644 KB Output is correct
46 Correct 16 ms 31832 KB Output is correct
47 Correct 19 ms 31832 KB Output is correct
48 Correct 16 ms 31844 KB Output is correct
49 Correct 16 ms 31836 KB Output is correct
50 Correct 16 ms 31836 KB Output is correct
51 Correct 16 ms 32088 KB Output is correct
52 Correct 15 ms 31836 KB Output is correct
53 Correct 15 ms 31836 KB Output is correct
54 Correct 14 ms 31832 KB Output is correct
55 Correct 16 ms 31772 KB Output is correct
56 Correct 14 ms 31832 KB Output is correct
57 Correct 14 ms 31836 KB Output is correct
58 Correct 15 ms 31832 KB Output is correct
59 Correct 14 ms 31672 KB Output is correct
60 Correct 16 ms 31768 KB Output is correct
61 Correct 14 ms 31836 KB Output is correct
62 Correct 17 ms 31836 KB Output is correct
63 Correct 15 ms 31620 KB Output is correct
64 Correct 138 ms 42212 KB Output is correct
65 Correct 130 ms 42216 KB Output is correct
66 Correct 138 ms 42124 KB Output is correct
67 Correct 146 ms 42216 KB Output is correct
68 Correct 133 ms 42208 KB Output is correct
69 Correct 125 ms 42208 KB Output is correct
70 Correct 132 ms 42208 KB Output is correct
71 Correct 162 ms 42136 KB Output is correct
72 Correct 135 ms 42196 KB Output is correct
73 Correct 157 ms 53800 KB Output is correct
74 Correct 142 ms 53624 KB Output is correct
75 Correct 136 ms 43556 KB Output is correct
76 Correct 141 ms 43448 KB Output is correct
77 Correct 144 ms 42116 KB Output is correct
78 Correct 129 ms 42208 KB Output is correct
79 Correct 160 ms 42208 KB Output is correct
80 Correct 132 ms 42204 KB Output is correct
81 Correct 122 ms 42184 KB Output is correct
82 Correct 133 ms 41936 KB Output is correct
83 Correct 140 ms 47140 KB Output is correct
84 Correct 156 ms 49184 KB Output is correct
85 Correct 133 ms 48924 KB Output is correct
86 Correct 123 ms 43296 KB Output is correct
87 Correct 132 ms 42784 KB Output is correct
88 Correct 136 ms 42768 KB Output is correct
89 Correct 146 ms 42780 KB Output is correct
90 Correct 135 ms 42684 KB Output is correct
91 Correct 131 ms 43012 KB Output is correct
92 Correct 184 ms 43256 KB Output is correct
93 Correct 176 ms 45484 KB Output is correct
94 Correct 140 ms 47044 KB Output is correct
95 Correct 149 ms 45976 KB Output is correct
96 Correct 167 ms 43988 KB Output is correct
97 Correct 117 ms 42532 KB Output is correct
98 Correct 139 ms 42276 KB Output is correct
99 Correct 122 ms 42324 KB Output is correct
100 Correct 134 ms 45088 KB Output is correct
101 Correct 128 ms 42964 KB Output is correct
102 Correct 135 ms 42412 KB Output is correct
103 Correct 129 ms 42468 KB Output is correct
104 Correct 149 ms 42692 KB Output is correct
105 Correct 129 ms 50440 KB Output is correct
106 Correct 113 ms 42436 KB Output is correct
107 Correct 117 ms 42504 KB Output is correct
108 Correct 159 ms 54500 KB Output is correct
109 Correct 121 ms 42624 KB Output is correct
110 Correct 147 ms 54812 KB Output is correct
111 Correct 128 ms 42164 KB Output is correct