oj.uz

Submission #496237

# Submission time Handle Problem Language Result Execution time Memory
496237 2021-12-21T03:39:58 Z Rainbowbunny Power Plant (JOI20_power) C++17
100 / 100
 399 ms 77152 KB 
#include <bits/stdc++.h>
using namespace std;

const int MAXN = 4e5 + 5;

int n, ans;
int c[MAXN], dp[MAXN];
string s;
vector <int> Adj[MAXN];

void DFS(int node, int p = -1)
{
    dp[node] = c[node];
    int sum = 0;
    for(auto x : Adj[node])
    {
        if(x == p)
        {
            continue;
        }
        DFS(x, node);
        sum += dp[x];
    }
    dp[node] = max(dp[node], sum - c[node]);
}

void DFS2(int node, int p = -1, int curdp = 0)
{
    int sum = 0;
    vector <int> VV;
    for(auto x : Adj[node])
    {
        if(x == p)
        {
            VV.push_back(curdp);
            sum += curdp;
        }
        else
        {
            VV.push_back(dp[x]);
            sum += dp[x];
        }
    }
    ans = max(ans, c[node]);
    ans = max(ans, sum - c[node]);
    for(int i = 0; i < (int)Adj[node].size(); i++)
    {
        int x = Adj[node][i];
        if(x == p)
        {
            continue;
        }
        DFS2(x, node, max(c[node], sum - c[node] - VV[i]));
    }
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin >> n;
    for(int i = 1; i < n; i++)
    {
        int u, v;
        cin >> u >> v;
        Adj[u].push_back(n + i);
        Adj[n + i].push_back(u);
        Adj[v].push_back(n + i);
        Adj[n + i].push_back(v);
    }
    cin >> s;
    for(int i = 1; i <= n; i++)
    {
        c[i] = s[i - 1] - '0';
    }
    DFS(1);
    ans = dp[1];
    DFS2(1);
    cout << ans << '\n';
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9676 KB Output is correct
2 Correct 6 ms 9676 KB Output is correct
3 Correct 5 ms 9676 KB Output is correct
4 Correct 5 ms 9676 KB Output is correct
5 Correct 5 ms 9716 KB Output is correct
6 Correct 6 ms 9676 KB Output is correct
7 Correct 6 ms 9676 KB Output is correct
8 Correct 8 ms 9812 KB Output is correct
9 Correct 5 ms 9676 KB Output is correct
10 Correct 5 ms 9676 KB Output is correct
11 Correct 5 ms 9716 KB Output is correct
12 Correct 5 ms 9696 KB Output is correct
13 Correct 7 ms 9676 KB Output is correct
14 Correct 6 ms 9676 KB Output is correct
15 Correct 5 ms 9676 KB Output is correct
16 Correct 5 ms 9676 KB Output is correct
17 Correct 5 ms 9676 KB Output is correct
18 Correct 5 ms 9676 KB Output is correct
19 Correct 5 ms 9676 KB Output is correct
20 Correct 5 ms 9676 KB Output is correct
21 Correct 6 ms 9676 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9676 KB Output is correct
2 Correct 6 ms 9676 KB Output is correct
3 Correct 5 ms 9676 KB Output is correct
4 Correct 5 ms 9676 KB Output is correct
5 Correct 5 ms 9716 KB Output is correct
6 Correct 6 ms 9676 KB Output is correct
7 Correct 6 ms 9676 KB Output is correct
8 Correct 8 ms 9812 KB Output is correct
9 Correct 5 ms 9676 KB Output is correct
10 Correct 5 ms 9676 KB Output is correct
11 Correct 5 ms 9716 KB Output is correct
12 Correct 5 ms 9696 KB Output is correct
13 Correct 7 ms 9676 KB Output is correct
14 Correct 6 ms 9676 KB Output is correct
15 Correct 5 ms 9676 KB Output is correct
16 Correct 5 ms 9676 KB Output is correct
17 Correct 5 ms 9676 KB Output is correct
18 Correct 5 ms 9676 KB Output is correct
19 Correct 5 ms 9676 KB Output is correct
20 Correct 5 ms 9676 KB Output is correct
21 Correct 6 ms 9676 KB Output is correct
22 Correct 6 ms 9860 KB Output is correct
23 Correct 7 ms 9852 KB Output is correct
24 Correct 7 ms 9804 KB Output is correct
25 Correct 7 ms 9804 KB Output is correct
26 Correct 7 ms 9804 KB Output is correct
27 Correct 6 ms 9804 KB Output is correct
28 Correct 8 ms 9856 KB Output is correct
29 Correct 6 ms 10316 KB Output is correct
30 Correct 6 ms 10108 KB Output is correct
31 Correct 6 ms 9796 KB Output is correct
32 Correct 6 ms 9852 KB Output is correct
33 Correct 6 ms 9804 KB Output is correct
34 Correct 7 ms 9804 KB Output is correct
35 Correct 7 ms 9804 KB Output is correct
36 Correct 7 ms 9856 KB Output is correct
37 Correct 6 ms 9804 KB Output is correct
38 Correct 8 ms 9856 KB Output is correct
39 Correct 9 ms 10064 KB Output is correct
40 Correct 8 ms 9984 KB Output is correct
41 Correct 6 ms 10060 KB Output is correct
42 Correct 6 ms 10008 KB Output is correct
43 Correct 6 ms 9932 KB Output is correct
44 Correct 6 ms 9964 KB Output is correct
45 Correct 7 ms 9932 KB Output is correct
46 Correct 6 ms 9932 KB Output is correct
47 Correct 6 ms 9932 KB Output is correct
48 Correct 6 ms 10060 KB Output is correct
49 Correct 6 ms 10112 KB Output is correct
50 Correct 6 ms 9928 KB Output is correct
51 Correct 6 ms 9896 KB Output is correct
52 Correct 6 ms 9804 KB Output is correct
53 Correct 6 ms 9988 KB Output is correct
54 Correct 8 ms 9932 KB Output is correct
55 Correct 7 ms 9856 KB Output is correct
56 Correct 7 ms 9920 KB Output is correct
57 Correct 8 ms 10316 KB Output is correct
58 Correct 8 ms 9860 KB Output is correct
59 Correct 6 ms 9804 KB Output is correct
60 Correct 7 ms 10060 KB Output is correct
61 Correct 6 ms 9804 KB Output is correct
62 Correct 7 ms 10296 KB Output is correct
63 Correct 6 ms 9856 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9676 KB Output is correct
2 Correct 6 ms 9676 KB Output is correct
3 Correct 5 ms 9676 KB Output is correct
4 Correct 5 ms 9676 KB Output is correct
5 Correct 5 ms 9716 KB Output is correct
6 Correct 6 ms 9676 KB Output is correct
7 Correct 6 ms 9676 KB Output is correct
8 Correct 8 ms 9812 KB Output is correct
9 Correct 5 ms 9676 KB Output is correct
10 Correct 5 ms 9676 KB Output is correct
11 Correct 5 ms 9716 KB Output is correct
12 Correct 5 ms 9696 KB Output is correct
13 Correct 7 ms 9676 KB Output is correct
14 Correct 6 ms 9676 KB Output is correct
15 Correct 5 ms 9676 KB Output is correct
16 Correct 5 ms 9676 KB Output is correct
17 Correct 5 ms 9676 KB Output is correct
18 Correct 5 ms 9676 KB Output is correct
19 Correct 5 ms 9676 KB Output is correct
20 Correct 5 ms 9676 KB Output is correct
21 Correct 6 ms 9676 KB Output is correct
22 Correct 6 ms 9860 KB Output is correct
23 Correct 7 ms 9852 KB Output is correct
24 Correct 7 ms 9804 KB Output is correct
25 Correct 7 ms 9804 KB Output is correct
26 Correct 7 ms 9804 KB Output is correct
27 Correct 6 ms 9804 KB Output is correct
28 Correct 8 ms 9856 KB Output is correct
29 Correct 6 ms 10316 KB Output is correct
30 Correct 6 ms 10108 KB Output is correct
31 Correct 6 ms 9796 KB Output is correct
32 Correct 6 ms 9852 KB Output is correct
33 Correct 6 ms 9804 KB Output is correct
34 Correct 7 ms 9804 KB Output is correct
35 Correct 7 ms 9804 KB Output is correct
36 Correct 7 ms 9856 KB Output is correct
37 Correct 6 ms 9804 KB Output is correct
38 Correct 8 ms 9856 KB Output is correct
39 Correct 9 ms 10064 KB Output is correct
40 Correct 8 ms 9984 KB Output is correct
41 Correct 6 ms 10060 KB Output is correct
42 Correct 6 ms 10008 KB Output is correct
43 Correct 6 ms 9932 KB Output is correct
44 Correct 6 ms 9964 KB Output is correct
45 Correct 7 ms 9932 KB Output is correct
46 Correct 6 ms 9932 KB Output is correct
47 Correct 6 ms 9932 KB Output is correct
48 Correct 6 ms 10060 KB Output is correct
49 Correct 6 ms 10112 KB Output is correct
50 Correct 6 ms 9928 KB Output is correct
51 Correct 6 ms 9896 KB Output is correct
52 Correct 6 ms 9804 KB Output is correct
53 Correct 6 ms 9988 KB Output is correct
54 Correct 8 ms 9932 KB Output is correct
55 Correct 7 ms 9856 KB Output is correct
56 Correct 7 ms 9920 KB Output is correct
57 Correct 8 ms 10316 KB Output is correct
58 Correct 8 ms 9860 KB Output is correct
59 Correct 6 ms 9804 KB Output is correct
60 Correct 7 ms 10060 KB Output is correct
61 Correct 6 ms 9804 KB Output is correct
62 Correct 7 ms 10296 KB Output is correct
63 Correct 6 ms 9856 KB Output is correct
64 Correct 322 ms 27668 KB Output is correct
65 Correct 307 ms 27836 KB Output is correct
66 Correct 346 ms 27784 KB Output is correct
67 Correct 300 ms 27776 KB Output is correct
68 Correct 307 ms 27780 KB Output is correct
69 Correct 304 ms 27644 KB Output is correct
70 Correct 304 ms 27748 KB Output is correct
71 Correct 313 ms 27668 KB Output is correct
72 Correct 317 ms 27732 KB Output is correct
73 Correct 386 ms 73312 KB Output is correct
74 Correct 374 ms 73000 KB Output is correct
75 Correct 313 ms 27612 KB Output is correct
76 Correct 304 ms 27544 KB Output is correct
77 Correct 352 ms 27632 KB Output is correct
78 Correct 318 ms 27556 KB Output is correct
79 Correct 329 ms 27672 KB Output is correct
80 Correct 349 ms 27604 KB Output is correct
81 Correct 282 ms 28924 KB Output is correct
82 Correct 268 ms 28004 KB Output is correct
83 Correct 371 ms 46204 KB Output is correct
84 Correct 399 ms 53828 KB Output is correct
85 Correct 362 ms 52664 KB Output is correct
86 Correct 314 ms 32540 KB Output is correct
87 Correct 318 ms 30424 KB Output is correct
88 Correct 293 ms 30656 KB Output is correct
89 Correct 291 ms 30604 KB Output is correct
90 Correct 290 ms 29856 KB Output is correct
91 Correct 298 ms 30688 KB Output is correct
92 Correct 287 ms 31972 KB Output is correct
93 Correct 315 ms 41648 KB Output is correct
94 Correct 323 ms 47276 KB Output is correct
95 Correct 290 ms 42784 KB Output is correct
96 Correct 310 ms 36148 KB Output is correct
97 Correct 319 ms 30364 KB Output is correct
98 Correct 295 ms 28444 KB Output is correct
99 Correct 310 ms 28216 KB Output is correct
100 Correct 292 ms 39484 KB Output is correct
101 Correct 300 ms 32248 KB Output is correct
102 Correct 280 ms 29244 KB Output is correct
103 Correct 304 ms 28400 KB Output is correct
104 Correct 141 ms 30264 KB Output is correct
105 Correct 367 ms 61832 KB Output is correct
106 Correct 153 ms 30036 KB Output is correct
107 Correct 148 ms 29916 KB Output is correct
108 Correct 392 ms 75948 KB Output is correct
109 Correct 150 ms 30160 KB Output is correct
110 Correct 382 ms 77152 KB Output is correct
111 Correct 271 ms 27516 KB Output is correct