oj.uz

Submission #763190

# Submission time Handle Problem Language Result Execution time Memory
763190 2023-06-22T06:13:52 Z vjudge1 Power Plant (JOI20_power) C++14
100 / 100
 146 ms 24496 KB 
#include<bits/stdc++.h>

using namespace std;

#define int long long
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define sz(x) ((int)x.size())
#define sumof(x) accumulate(all(x), 0ll)

const int N=2e5+1;
int n, a[N], f[N][2];
vector<int> g[N];

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

void solve(int tc){
    // cout << "Case #" << tc << ": ";
    cin >> n;
    for (int i=1; i<n; ++i){
        int x, y;
        cin >> x >> y;
        g[x].push_back(y);
        g[y].push_back(x);
    }
    for (int i=1; i<=n; ++i){
        char c; cin >> c;
        a[i]=c-'0';
    }
    dfs(1, 1);
    int ans=0;
    for (int i=1; i<=n; ++i) ans=max(ans, f[i][0]);
    cout << ans;
}

int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int ntests=1;
    // cin >> ntests;
    for (int i=1; i<=ntests; ++i) solve(i);
    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 5028 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 3 ms 5032 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 2 ms 5000 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 2 ms 5028 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 5032 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 4 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 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 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 5028 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 3 ms 5032 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 2 ms 5000 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 2 ms 5028 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 5032 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 4 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 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 4 ms 5076 KB Output is correct
23 Correct 3 ms 5076 KB Output is correct
24 Correct 5 ms 5164 KB Output is correct
25 Correct 3 ms 5076 KB Output is correct
26 Correct 3 ms 5076 KB Output is correct
27 Correct 4 ms 5092 KB Output is correct
28 Correct 3 ms 5164 KB Output is correct
29 Correct 3 ms 5168 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 4 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 4 ms 5172 KB Output is correct
37 Correct 4 ms 5168 KB Output is correct
38 Correct 3 ms 5076 KB Output is correct
39 Correct 4 ms 5204 KB Output is correct
40 Correct 4 ms 5076 KB Output is correct
41 Correct 3 ms 5164 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 5172 KB Output is correct
45 Correct 4 ms 5088 KB Output is correct
46 Correct 3 ms 5164 KB Output is correct
47 Correct 4 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 3 ms 5076 KB Output is correct
51 Correct 3 ms 5204 KB Output is correct
52 Correct 3 ms 5076 KB Output is correct
53 Correct 3 ms 5164 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 5168 KB Output is correct
58 Correct 3 ms 5076 KB Output is correct
59 Correct 3 ms 5168 KB Output is correct
60 Correct 3 ms 5172 KB Output is correct
61 Correct 3 ms 5076 KB Output is correct
62 Correct 3 ms 5168 KB Output is correct
63 Correct 3 ms 5164 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 5028 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 3 ms 5032 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 2 ms 5000 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 2 ms 5028 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 5032 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 4 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 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 4 ms 5076 KB Output is correct
23 Correct 3 ms 5076 KB Output is correct
24 Correct 5 ms 5164 KB Output is correct
25 Correct 3 ms 5076 KB Output is correct
26 Correct 3 ms 5076 KB Output is correct
27 Correct 4 ms 5092 KB Output is correct
28 Correct 3 ms 5164 KB Output is correct
29 Correct 3 ms 5168 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 4 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 4 ms 5172 KB Output is correct
37 Correct 4 ms 5168 KB Output is correct
38 Correct 3 ms 5076 KB Output is correct
39 Correct 4 ms 5204 KB Output is correct
40 Correct 4 ms 5076 KB Output is correct
41 Correct 3 ms 5164 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 5172 KB Output is correct
45 Correct 4 ms 5088 KB Output is correct
46 Correct 3 ms 5164 KB Output is correct
47 Correct 4 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 3 ms 5076 KB Output is correct
51 Correct 3 ms 5204 KB Output is correct
52 Correct 3 ms 5076 KB Output is correct
53 Correct 3 ms 5164 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 5168 KB Output is correct
58 Correct 3 ms 5076 KB Output is correct
59 Correct 3 ms 5168 KB Output is correct
60 Correct 3 ms 5172 KB Output is correct
61 Correct 3 ms 5076 KB Output is correct
62 Correct 3 ms 5168 KB Output is correct
63 Correct 3 ms 5164 KB Output is correct
64 Correct 82 ms 17188 KB Output is correct
65 Correct 86 ms 17292 KB Output is correct
66 Correct 87 ms 17184 KB Output is correct
67 Correct 92 ms 17288 KB Output is correct
68 Correct 87 ms 17236 KB Output is correct
69 Correct 94 ms 17296 KB Output is correct
70 Correct 90 ms 17248 KB Output is correct
71 Correct 88 ms 17240 KB Output is correct
72 Correct 92 ms 17208 KB Output is correct
73 Correct 117 ms 23892 KB Output is correct
74 Correct 146 ms 23804 KB Output is correct
75 Correct 88 ms 18524 KB Output is correct
76 Correct 90 ms 18508 KB Output is correct
77 Correct 89 ms 17260 KB Output is correct
78 Correct 98 ms 17268 KB Output is correct
79 Correct 98 ms 17200 KB Output is correct
80 Correct 86 ms 17244 KB Output is correct
81 Correct 70 ms 17220 KB Output is correct
82 Correct 80 ms 17152 KB Output is correct
83 Correct 120 ms 20288 KB Output is correct
84 Correct 108 ms 21584 KB Output is correct
85 Correct 94 ms 21296 KB Output is correct
86 Correct 93 ms 18104 KB Output is correct
87 Correct 99 ms 17704 KB Output is correct
88 Correct 101 ms 17828 KB Output is correct
89 Correct 98 ms 17816 KB Output is correct
90 Correct 82 ms 17800 KB Output is correct
91 Correct 96 ms 18016 KB Output is correct
92 Correct 98 ms 18108 KB Output is correct
93 Correct 82 ms 19264 KB Output is correct
94 Correct 77 ms 20176 KB Output is correct
95 Correct 78 ms 19364 KB Output is correct
96 Correct 81 ms 18384 KB Output is correct
97 Correct 91 ms 17588 KB Output is correct
98 Correct 77 ms 17420 KB Output is correct
99 Correct 115 ms 17332 KB Output is correct
100 Correct 91 ms 19048 KB Output is correct
101 Correct 109 ms 17760 KB Output is correct
102 Correct 103 ms 17408 KB Output is correct
103 Correct 83 ms 17548 KB Output is correct
104 Correct 67 ms 17740 KB Output is correct
105 Correct 99 ms 21816 KB Output is correct
106 Correct 54 ms 17676 KB Output is correct
107 Correct 54 ms 17712 KB Output is correct
108 Correct 116 ms 24232 KB Output is correct
109 Correct 72 ms 17788 KB Output is correct
110 Correct 98 ms 24496 KB Output is correct
111 Correct 77 ms 17212 KB Output is correct