oj.uz

Submission #1007353

# Submission time Handle Problem Language Result Execution time Memory
1007353 2024-06-24T16:46:16 Z Alihan_8 Power Plant (JOI20_power) C++17
100 / 100
 69 ms 26260 KB 
#include <bits/stdc++.h>

using namespace std;

#define all(x) x.begin(), x.end()
#define ar array
#define pb push_back
#define ln '\n'
#define int long long

using i64 = long long;

template <class F, class _S>
bool chmin(F &u, const _S &v){
    bool flag = false;
    if ( u > v ){
        u = v; flag |= true;
    }
    return flag;
}

template <class F, class _S>
bool chmax(F &u, const _S &v){
    bool flag = false;
    if ( u < v ){
        u = v; flag |= true;
    }
    return flag;
}

const int inf = 1e9;

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int n; cin >> n;

    vector <vector<int>> adj(n);

    for ( int i = 1; i < n; i++ ){
        int u, v; cin >> u >> v;

        --u, --v;

        adj[u].pb(v);
        adj[v].pb(u);
    }

    string s; cin >> s;

    int cnt = 0;

    for ( auto &u: s ){
        u -= '0';

        cnt += 1;
    }

    vector <int> dp(n);

    int ans = 0;

    auto dfs = [&](auto dfs, int u, int p) -> void{
        int cnt = 0, ma = 0;

        for ( auto &v: adj[u] ){
            if ( v != p ){
                dfs(dfs, v, u);

                cnt += dp[v];

                chmax(ma, dp[v]);
            }
        }

        if ( s[u] > 0 ){
            chmax(ans, max(cnt - 1, ma + 1));
        } else{
            chmax(ans, cnt);
        }

        dp[u] = max((int)s[u], cnt - s[u]);
    };

    dfs(dfs, 0, -1);

    cout << ans << ln;

    cout << '\n';
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 360 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 360 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 1 ms 604 KB Output is correct
28 Correct 1 ms 592 KB Output is correct
29 Correct 1 ms 604 KB Output is correct
30 Correct 1 ms 604 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 1 ms 604 KB Output is correct
34 Correct 1 ms 604 KB Output is correct
35 Correct 1 ms 604 KB Output is correct
36 Correct 1 ms 604 KB Output is correct
37 Correct 1 ms 604 KB Output is correct
38 Correct 1 ms 604 KB Output is correct
39 Correct 1 ms 604 KB Output is correct
40 Correct 1 ms 604 KB Output is correct
41 Correct 1 ms 604 KB Output is correct
42 Correct 1 ms 604 KB Output is correct
43 Correct 1 ms 604 KB Output is correct
44 Correct 1 ms 604 KB Output is correct
45 Correct 1 ms 604 KB Output is correct
46 Correct 1 ms 604 KB Output is correct
47 Correct 1 ms 604 KB Output is correct
48 Correct 1 ms 604 KB Output is correct
49 Correct 1 ms 604 KB Output is correct
50 Correct 1 ms 604 KB Output is correct
51 Correct 1 ms 604 KB Output is correct
52 Correct 1 ms 604 KB Output is correct
53 Correct 1 ms 604 KB Output is correct
54 Correct 1 ms 604 KB Output is correct
55 Correct 1 ms 604 KB Output is correct
56 Correct 1 ms 604 KB Output is correct
57 Correct 1 ms 604 KB Output is correct
58 Correct 1 ms 604 KB Output is correct
59 Correct 1 ms 604 KB Output is correct
60 Correct 1 ms 604 KB Output is correct
61 Correct 1 ms 604 KB Output is correct
62 Correct 1 ms 604 KB Output is correct
63 Correct 1 ms 604 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 360 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 1 ms 604 KB Output is correct
28 Correct 1 ms 592 KB Output is correct
29 Correct 1 ms 604 KB Output is correct
30 Correct 1 ms 604 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 1 ms 604 KB Output is correct
34 Correct 1 ms 604 KB Output is correct
35 Correct 1 ms 604 KB Output is correct
36 Correct 1 ms 604 KB Output is correct
37 Correct 1 ms 604 KB Output is correct
38 Correct 1 ms 604 KB Output is correct
39 Correct 1 ms 604 KB Output is correct
40 Correct 1 ms 604 KB Output is correct
41 Correct 1 ms 604 KB Output is correct
42 Correct 1 ms 604 KB Output is correct
43 Correct 1 ms 604 KB Output is correct
44 Correct 1 ms 604 KB Output is correct
45 Correct 1 ms 604 KB Output is correct
46 Correct 1 ms 604 KB Output is correct
47 Correct 1 ms 604 KB Output is correct
48 Correct 1 ms 604 KB Output is correct
49 Correct 1 ms 604 KB Output is correct
50 Correct 1 ms 604 KB Output is correct
51 Correct 1 ms 604 KB Output is correct
52 Correct 1 ms 604 KB Output is correct
53 Correct 1 ms 604 KB Output is correct
54 Correct 1 ms 604 KB Output is correct
55 Correct 1 ms 604 KB Output is correct
56 Correct 1 ms 604 KB Output is correct
57 Correct 1 ms 604 KB Output is correct
58 Correct 1 ms 604 KB Output is correct
59 Correct 1 ms 604 KB Output is correct
60 Correct 1 ms 604 KB Output is correct
61 Correct 1 ms 604 KB Output is correct
62 Correct 1 ms 604 KB Output is correct
63 Correct 1 ms 604 KB Output is correct
64 Correct 54 ms 17116 KB Output is correct
65 Correct 68 ms 16860 KB Output is correct
66 Correct 58 ms 17028 KB Output is correct
67 Correct 69 ms 17180 KB Output is correct
68 Correct 58 ms 17024 KB Output is correct
69 Correct 53 ms 16984 KB Output is correct
70 Correct 53 ms 17100 KB Output is correct
71 Correct 56 ms 17056 KB Output is correct
72 Correct 65 ms 17124 KB Output is correct
73 Correct 57 ms 25508 KB Output is correct
74 Correct 57 ms 25492 KB Output is correct
75 Correct 65 ms 18320 KB Output is correct
76 Correct 60 ms 18328 KB Output is correct
77 Correct 69 ms 16904 KB Output is correct
78 Correct 55 ms 16988 KB Output is correct
79 Correct 64 ms 16908 KB Output is correct
80 Correct 65 ms 17040 KB Output is correct
81 Correct 48 ms 17096 KB Output is correct
82 Correct 58 ms 17144 KB Output is correct
83 Correct 58 ms 20888 KB Output is correct
84 Correct 61 ms 22432 KB Output is correct
85 Correct 59 ms 22176 KB Output is correct
86 Correct 53 ms 18068 KB Output is correct
87 Correct 57 ms 17460 KB Output is correct
88 Correct 61 ms 17616 KB Output is correct
89 Correct 56 ms 17824 KB Output is correct
90 Correct 56 ms 17656 KB Output is correct
91 Correct 58 ms 17636 KB Output is correct
92 Correct 54 ms 18052 KB Output is correct
93 Correct 52 ms 19404 KB Output is correct
94 Correct 57 ms 20744 KB Output is correct
95 Correct 50 ms 19828 KB Output is correct
96 Correct 57 ms 18448 KB Output is correct
97 Correct 51 ms 17388 KB Output is correct
98 Correct 53 ms 17092 KB Output is correct
99 Correct 58 ms 17020 KB Output is correct
100 Correct 48 ms 19328 KB Output is correct
101 Correct 53 ms 17508 KB Output is correct
102 Correct 47 ms 17252 KB Output is correct
103 Correct 51 ms 17332 KB Output is correct
104 Correct 38 ms 17560 KB Output is correct
105 Correct 64 ms 22932 KB Output is correct
106 Correct 40 ms 17468 KB Output is correct
107 Correct 38 ms 17656 KB Output is correct
108 Correct 66 ms 26004 KB Output is correct
109 Correct 39 ms 17604 KB Output is correct
110 Correct 55 ms 26260 KB Output is correct
111 Correct 50 ms 16984 KB Output is correct