oj.uz

Submission #362091

# Submission time Handle Problem Language Result Execution time Memory
362091 2021-02-01T17:34:28 Z doowey Power Plant (JOI20_power) C++14
100 / 100
 215 ms 35012 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;

#define fi first
#define se second
#define mp make_pair
#define fastIO ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);

const int N = (int)2e5 + 100;
vector<int> T[N];
int bt[N];
int sol = 1;
int dp[N];

void dfs(int u, int pp){
    vector<int> nx;
    for(auto x : T[u]){
        if(x==pp) continue;
        dfs(x,u);
        nx.push_back(x);
    }
    if(bt[u]){
        dp[u]=1;
    }
    for(auto q : nx){
        sol = max(sol, dp[q]+bt[u]);
    }
    int cum = 0;
    for(auto q : nx){
        cum += dp[q];
    }
    dp[u] = max(dp[u],cum-bt[u]);
    sol = max(sol, cum - bt[u]);
    for(auto q : nx){
        dp[u]=max(dp[u],dp[q]-bt[u]);
    }
}

int main(){
    fastIO;
    int n;
    cin >> n;
    int u, v;
    for(int i = 1; i < n; i ++ ){
        cin >> u >> v;
        T[u].push_back(v);
        T[v].push_back(u);
    }
    char f;
    for(int i = 1; i <= n; i ++ ){
        cin >> f;
        bt[i]=f-'0';
    }
    dfs(1,-1);
    cout << sol << "\n";
    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5100 KB Output is correct
2 Correct 4 ms 5100 KB Output is correct
3 Correct 4 ms 5100 KB Output is correct
4 Correct 4 ms 5100 KB Output is correct
5 Correct 4 ms 5100 KB Output is correct
6 Correct 4 ms 5100 KB Output is correct
7 Correct 4 ms 5100 KB Output is correct
8 Correct 4 ms 5100 KB Output is correct
9 Correct 4 ms 5104 KB Output is correct
10 Correct 4 ms 5100 KB Output is correct
11 Correct 3 ms 5100 KB Output is correct
12 Correct 4 ms 5100 KB Output is correct
13 Correct 4 ms 5100 KB Output is correct
14 Correct 4 ms 5100 KB Output is correct
15 Correct 3 ms 5100 KB Output is correct
16 Correct 4 ms 5100 KB Output is correct
17 Correct 4 ms 5100 KB Output is correct
18 Correct 4 ms 5100 KB Output is correct
19 Correct 4 ms 5100 KB Output is correct
20 Correct 3 ms 5100 KB Output is correct
21 Correct 4 ms 5100 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5100 KB Output is correct
2 Correct 4 ms 5100 KB Output is correct
3 Correct 4 ms 5100 KB Output is correct
4 Correct 4 ms 5100 KB Output is correct
5 Correct 4 ms 5100 KB Output is correct
6 Correct 4 ms 5100 KB Output is correct
7 Correct 4 ms 5100 KB Output is correct
8 Correct 4 ms 5100 KB Output is correct
9 Correct 4 ms 5104 KB Output is correct
10 Correct 4 ms 5100 KB Output is correct
11 Correct 3 ms 5100 KB Output is correct
12 Correct 4 ms 5100 KB Output is correct
13 Correct 4 ms 5100 KB Output is correct
14 Correct 4 ms 5100 KB Output is correct
15 Correct 3 ms 5100 KB Output is correct
16 Correct 4 ms 5100 KB Output is correct
17 Correct 4 ms 5100 KB Output is correct
18 Correct 4 ms 5100 KB Output is correct
19 Correct 4 ms 5100 KB Output is correct
20 Correct 3 ms 5100 KB Output is correct
21 Correct 4 ms 5100 KB Output is correct
22 Correct 4 ms 5100 KB Output is correct
23 Correct 5 ms 5100 KB Output is correct
24 Correct 5 ms 5100 KB Output is correct
25 Correct 5 ms 5100 KB Output is correct
26 Correct 4 ms 5104 KB Output is correct
27 Correct 4 ms 5100 KB Output is correct
28 Correct 5 ms 5100 KB Output is correct
29 Correct 4 ms 5356 KB Output is correct
30 Correct 5 ms 5356 KB Output is correct
31 Correct 5 ms 5100 KB Output is correct
32 Correct 4 ms 5100 KB Output is correct
33 Correct 5 ms 5100 KB Output is correct
34 Correct 5 ms 5100 KB Output is correct
35 Correct 4 ms 5100 KB Output is correct
36 Correct 4 ms 5100 KB Output is correct
37 Correct 5 ms 5228 KB Output is correct
38 Correct 6 ms 5100 KB Output is correct
39 Correct 5 ms 5228 KB Output is correct
40 Correct 6 ms 5228 KB Output is correct
41 Correct 5 ms 5228 KB Output is correct
42 Correct 5 ms 5228 KB Output is correct
43 Correct 4 ms 5228 KB Output is correct
44 Correct 4 ms 5100 KB Output is correct
45 Correct 4 ms 5228 KB Output is correct
46 Correct 4 ms 5228 KB Output is correct
47 Correct 4 ms 5228 KB Output is correct
48 Correct 5 ms 5228 KB Output is correct
49 Correct 4 ms 5228 KB Output is correct
50 Correct 5 ms 5228 KB Output is correct
51 Correct 6 ms 5228 KB Output is correct
52 Correct 4 ms 5100 KB Output is correct
53 Correct 4 ms 5228 KB Output is correct
54 Correct 4 ms 5228 KB Output is correct
55 Correct 4 ms 5228 KB Output is correct
56 Correct 4 ms 5228 KB Output is correct
57 Correct 4 ms 5356 KB Output is correct
58 Correct 4 ms 5228 KB Output is correct
59 Correct 4 ms 5228 KB Output is correct
60 Correct 5 ms 5228 KB Output is correct
61 Correct 4 ms 5228 KB Output is correct
62 Correct 4 ms 5356 KB Output is correct
63 Correct 4 ms 5100 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5100 KB Output is correct
2 Correct 4 ms 5100 KB Output is correct
3 Correct 4 ms 5100 KB Output is correct
4 Correct 4 ms 5100 KB Output is correct
5 Correct 4 ms 5100 KB Output is correct
6 Correct 4 ms 5100 KB Output is correct
7 Correct 4 ms 5100 KB Output is correct
8 Correct 4 ms 5100 KB Output is correct
9 Correct 4 ms 5104 KB Output is correct
10 Correct 4 ms 5100 KB Output is correct
11 Correct 3 ms 5100 KB Output is correct
12 Correct 4 ms 5100 KB Output is correct
13 Correct 4 ms 5100 KB Output is correct
14 Correct 4 ms 5100 KB Output is correct
15 Correct 3 ms 5100 KB Output is correct
16 Correct 4 ms 5100 KB Output is correct
17 Correct 4 ms 5100 KB Output is correct
18 Correct 4 ms 5100 KB Output is correct
19 Correct 4 ms 5100 KB Output is correct
20 Correct 3 ms 5100 KB Output is correct
21 Correct 4 ms 5100 KB Output is correct
22 Correct 4 ms 5100 KB Output is correct
23 Correct 5 ms 5100 KB Output is correct
24 Correct 5 ms 5100 KB Output is correct
25 Correct 5 ms 5100 KB Output is correct
26 Correct 4 ms 5104 KB Output is correct
27 Correct 4 ms 5100 KB Output is correct
28 Correct 5 ms 5100 KB Output is correct
29 Correct 4 ms 5356 KB Output is correct
30 Correct 5 ms 5356 KB Output is correct
31 Correct 5 ms 5100 KB Output is correct
32 Correct 4 ms 5100 KB Output is correct
33 Correct 5 ms 5100 KB Output is correct
34 Correct 5 ms 5100 KB Output is correct
35 Correct 4 ms 5100 KB Output is correct
36 Correct 4 ms 5100 KB Output is correct
37 Correct 5 ms 5228 KB Output is correct
38 Correct 6 ms 5100 KB Output is correct
39 Correct 5 ms 5228 KB Output is correct
40 Correct 6 ms 5228 KB Output is correct
41 Correct 5 ms 5228 KB Output is correct
42 Correct 5 ms 5228 KB Output is correct
43 Correct 4 ms 5228 KB Output is correct
44 Correct 4 ms 5100 KB Output is correct
45 Correct 4 ms 5228 KB Output is correct
46 Correct 4 ms 5228 KB Output is correct
47 Correct 4 ms 5228 KB Output is correct
48 Correct 5 ms 5228 KB Output is correct
49 Correct 4 ms 5228 KB Output is correct
50 Correct 5 ms 5228 KB Output is correct
51 Correct 6 ms 5228 KB Output is correct
52 Correct 4 ms 5100 KB Output is correct
53 Correct 4 ms 5228 KB Output is correct
54 Correct 4 ms 5228 KB Output is correct
55 Correct 4 ms 5228 KB Output is correct
56 Correct 4 ms 5228 KB Output is correct
57 Correct 4 ms 5356 KB Output is correct
58 Correct 4 ms 5228 KB Output is correct
59 Correct 4 ms 5228 KB Output is correct
60 Correct 5 ms 5228 KB Output is correct
61 Correct 4 ms 5228 KB Output is correct
62 Correct 4 ms 5356 KB Output is correct
63 Correct 4 ms 5100 KB Output is correct
64 Correct 192 ms 15724 KB Output is correct
65 Correct 178 ms 15724 KB Output is correct
66 Correct 176 ms 15980 KB Output is correct
67 Correct 194 ms 15724 KB Output is correct
68 Correct 177 ms 15852 KB Output is correct
69 Correct 213 ms 15852 KB Output is correct
70 Correct 188 ms 15720 KB Output is correct
71 Correct 179 ms 15852 KB Output is correct
72 Correct 190 ms 15724 KB Output is correct
73 Correct 212 ms 33516 KB Output is correct
74 Correct 206 ms 33388 KB Output is correct
75 Correct 177 ms 15596 KB Output is correct
76 Correct 209 ms 15676 KB Output is correct
77 Correct 172 ms 15596 KB Output is correct
78 Correct 177 ms 15724 KB Output is correct
79 Correct 194 ms 15724 KB Output is correct
80 Correct 188 ms 15620 KB Output is correct
81 Correct 141 ms 16740 KB Output is correct
82 Correct 163 ms 16232 KB Output is correct
83 Correct 199 ms 23660 KB Output is correct
84 Correct 187 ms 26612 KB Output is correct
85 Correct 200 ms 26220 KB Output is correct
86 Correct 189 ms 17900 KB Output is correct
87 Correct 175 ms 16876 KB Output is correct
88 Correct 165 ms 17260 KB Output is correct
89 Correct 215 ms 17260 KB Output is correct
90 Correct 173 ms 16876 KB Output is correct
91 Correct 161 ms 17260 KB Output is correct
92 Correct 172 ms 18028 KB Output is correct
93 Correct 194 ms 21568 KB Output is correct
94 Correct 150 ms 23580 KB Output is correct
95 Correct 178 ms 22164 KB Output is correct
96 Correct 174 ms 19456 KB Output is correct
97 Correct 156 ms 17004 KB Output is correct
98 Correct 193 ms 16364 KB Output is correct
99 Correct 192 ms 16108 KB Output is correct
100 Correct 174 ms 20844 KB Output is correct
101 Correct 171 ms 17840 KB Output is correct
102 Correct 147 ms 16620 KB Output is correct
103 Correct 166 ms 16364 KB Output is correct
104 Correct 111 ms 18072 KB Output is correct
105 Correct 198 ms 28944 KB Output is correct
106 Correct 103 ms 18016 KB Output is correct
107 Correct 105 ms 17888 KB Output is correct
108 Correct 205 ms 34412 KB Output is correct
109 Correct 100 ms 18036 KB Output is correct
110 Correct 203 ms 35012 KB Output is correct
111 Correct 174 ms 15596 KB Output is correct