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Submission #313083

# Submission time Handle Problem Language Result Execution time Memory
313083 2020-10-15T07:37:55 Z Jarif_Rahman Power Plant (JOI20_power) C++17
100 / 100
 206 ms 30836 KB 
#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;
int n; str s;
vector <vector<int>> v;
ll ans =  0;
ll dfs(int nd, int ss){
    ll r = '0'-s[nd];
    bool bl = (r==-1);
    ll mx = 0;
    if(ss == -1 && s[nd] == '1' && v[nd].size() == 1) r = 1;
    else if(v[nd].size() <= 2 && s[nd] == '1' && ss != -1) r = 1;
    for(int x: v[nd]) if(x != ss){
        ll y =dfs(x, nd);
        mx = max(mx, y);
        r+=y;
    }
    if(bl && nd == 1) r = max(r, mx+1);
    else if(bl) ans = max(ans, mx+1);
    ans = max(ans, max(r, (ll)s[nd] - '0'));
    if(v[nd].size() <= 2 && s[nd] == '1' && ss != -1)r-=2;
    return max(r, (ll)s[nd] - '0');
}
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >> n;
    v = vector<vector<int>> (n+1);
    for(int i = 1; i < n; i++){
        int a, b; cin >> a >> b;
        v[a].pb(b);
        v[b].pb(a);
    }
    cin >> s;
    s = "x"+s;
    ans = max(ans, dfs(1, -1));
    cout << ans << "\n";
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 0 ms 384 KB Output is correct
21 Correct 0 ms 384 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 0 ms 384 KB Output is correct
21 Correct 0 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 2 ms 512 KB Output is correct
24 Correct 2 ms 512 KB Output is correct
25 Correct 2 ms 384 KB Output is correct
26 Correct 1 ms 512 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 2 ms 384 KB Output is correct
29 Correct 1 ms 640 KB Output is correct
30 Correct 1 ms 512 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 404 KB Output is correct
35 Correct 2 ms 384 KB Output is correct
36 Correct 1 ms 384 KB Output is correct
37 Correct 1 ms 384 KB Output is correct
38 Correct 1 ms 512 KB Output is correct
39 Correct 1 ms 512 KB Output is correct
40 Correct 2 ms 512 KB Output is correct
41 Correct 1 ms 512 KB Output is correct
42 Correct 1 ms 512 KB Output is correct
43 Correct 1 ms 512 KB Output is correct
44 Correct 1 ms 512 KB Output is correct
45 Correct 1 ms 512 KB Output is correct
46 Correct 1 ms 512 KB Output is correct
47 Correct 1 ms 512 KB Output is correct
48 Correct 2 ms 512 KB Output is correct
49 Correct 1 ms 512 KB Output is correct
50 Correct 1 ms 512 KB Output is correct
51 Correct 1 ms 512 KB Output is correct
52 Correct 2 ms 512 KB Output is correct
53 Correct 1 ms 512 KB Output is correct
54 Correct 1 ms 512 KB Output is correct
55 Correct 1 ms 512 KB Output is correct
56 Correct 1 ms 512 KB Output is correct
57 Correct 2 ms 640 KB Output is correct
58 Correct 1 ms 512 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 1 ms 512 KB Output is correct
61 Correct 1 ms 512 KB Output is correct
62 Correct 1 ms 512 KB Output is correct
63 Correct 1 ms 384 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 0 ms 384 KB Output is correct
21 Correct 0 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 2 ms 512 KB Output is correct
24 Correct 2 ms 512 KB Output is correct
25 Correct 2 ms 384 KB Output is correct
26 Correct 1 ms 512 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 2 ms 384 KB Output is correct
29 Correct 1 ms 640 KB Output is correct
30 Correct 1 ms 512 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 404 KB Output is correct
35 Correct 2 ms 384 KB Output is correct
36 Correct 1 ms 384 KB Output is correct
37 Correct 1 ms 384 KB Output is correct
38 Correct 1 ms 512 KB Output is correct
39 Correct 1 ms 512 KB Output is correct
40 Correct 2 ms 512 KB Output is correct
41 Correct 1 ms 512 KB Output is correct
42 Correct 1 ms 512 KB Output is correct
43 Correct 1 ms 512 KB Output is correct
44 Correct 1 ms 512 KB Output is correct
45 Correct 1 ms 512 KB Output is correct
46 Correct 1 ms 512 KB Output is correct
47 Correct 1 ms 512 KB Output is correct
48 Correct 2 ms 512 KB Output is correct
49 Correct 1 ms 512 KB Output is correct
50 Correct 1 ms 512 KB Output is correct
51 Correct 1 ms 512 KB Output is correct
52 Correct 2 ms 512 KB Output is correct
53 Correct 1 ms 512 KB Output is correct
54 Correct 1 ms 512 KB Output is correct
55 Correct 1 ms 512 KB Output is correct
56 Correct 1 ms 512 KB Output is correct
57 Correct 2 ms 640 KB Output is correct
58 Correct 1 ms 512 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 1 ms 512 KB Output is correct
61 Correct 1 ms 512 KB Output is correct
62 Correct 1 ms 512 KB Output is correct
63 Correct 1 ms 384 KB Output is correct
64 Correct 181 ms 11964 KB Output is correct
65 Correct 182 ms 14648 KB Output is correct
66 Correct 175 ms 14628 KB Output is correct
67 Correct 170 ms 14632 KB Output is correct
68 Correct 176 ms 14628 KB Output is correct
69 Correct 174 ms 14644 KB Output is correct
70 Correct 170 ms 14660 KB Output is correct
71 Correct 167 ms 14660 KB Output is correct
72 Correct 174 ms 14644 KB Output is correct
73 Correct 199 ms 29556 KB Output is correct
74 Correct 200 ms 29556 KB Output is correct
75 Correct 170 ms 14520 KB Output is correct
76 Correct 169 ms 14528 KB Output is correct
77 Correct 176 ms 14516 KB Output is correct
78 Correct 177 ms 14520 KB Output is correct
79 Correct 178 ms 14532 KB Output is correct
80 Correct 176 ms 14520 KB Output is correct
81 Correct 154 ms 14836 KB Output is correct
82 Correct 161 ms 14712 KB Output is correct
83 Correct 182 ms 20600 KB Output is correct
84 Correct 185 ms 23172 KB Output is correct
85 Correct 182 ms 22784 KB Output is correct
86 Correct 171 ms 16116 KB Output is correct
87 Correct 170 ms 15332 KB Output is correct
88 Correct 176 ms 15792 KB Output is correct
89 Correct 176 ms 15748 KB Output is correct
90 Correct 167 ms 15576 KB Output is correct
91 Correct 175 ms 15832 KB Output is correct
92 Correct 178 ms 16356 KB Output is correct
93 Correct 160 ms 19136 KB Output is correct
94 Correct 163 ms 21360 KB Output is correct
95 Correct 157 ms 19756 KB Output is correct
96 Correct 158 ms 17504 KB Output is correct
97 Correct 152 ms 15696 KB Output is correct
98 Correct 156 ms 15092 KB Output is correct
99 Correct 169 ms 15028 KB Output is correct
100 Correct 174 ms 18532 KB Output is correct
101 Correct 169 ms 16112 KB Output is correct
102 Correct 161 ms 15296 KB Output is correct
103 Correct 161 ms 15084 KB Output is correct
104 Correct 109 ms 15340 KB Output is correct
105 Correct 199 ms 25716 KB Output is correct
106 Correct 115 ms 15212 KB Output is correct
107 Correct 111 ms 15212 KB Output is correct
108 Correct 206 ms 30528 KB Output is correct
109 Correct 121 ms 15368 KB Output is correct
110 Correct 204 ms 30836 KB Output is correct
111 Correct 169 ms 14536 KB Output is correct