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Submission #423356

# Submission time Handle Problem Language Result Execution time Memory
423356 2021-06-11T02:43:29 Z DanerZein Power Plant (JOI20_power) C++14
100 / 100
 299 ms 28768 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<int> vi;
const int MAX_N=2e5+10;
vector<vi> G;
string x;
int dp[MAX_N],pa[MAX_N];
int ans=0;
int dfs(int u,int p){
  int ma=0;
  int s=0;
  bool hj=0;
  for(auto &v:G[u]){
    if(v!=p){
      hj=1;
      int aux=dfs(v,u);
      ma=max(ma,aux);
      s+=aux;
    }
  }
  int mi=0;
  if(x[u]=='1'){
    ma++; s--;
    mi=1;
  }
  ans=max(ans,ma);
  return dp[u]=max(s,mi);
}
int main(){
  int n;
  cin>>n;
  G.resize(n+1);
  for(int i=0;i<n-1;i++){
    int a,b; cin>>a>>b;
    a--; b--;
    G[a].push_back(b);
    G[b].push_back(a);
  }
  cin>>x;
  cout<<max(ans,dfs(0,-1))<<endl;
 
}

Compilation message

power.cpp: In function 'int dfs(int, int)':
power.cpp:13:8: warning: variable 'hj' set but not used [-Wunused-but-set-variable]
   13 |   bool hj=0;
      |        ^~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 292 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 292 KB Output is correct
22 Correct 2 ms 332 KB Output is correct
23 Correct 2 ms 332 KB Output is correct
24 Correct 2 ms 332 KB Output is correct
25 Correct 2 ms 332 KB Output is correct
26 Correct 2 ms 332 KB Output is correct
27 Correct 2 ms 400 KB Output is correct
28 Correct 2 ms 436 KB Output is correct
29 Correct 2 ms 576 KB Output is correct
30 Correct 2 ms 460 KB Output is correct
31 Correct 2 ms 332 KB Output is correct
32 Correct 2 ms 332 KB Output is correct
33 Correct 2 ms 332 KB Output is correct
34 Correct 2 ms 332 KB Output is correct
35 Correct 2 ms 332 KB Output is correct
36 Correct 2 ms 332 KB Output is correct
37 Correct 2 ms 332 KB Output is correct
38 Correct 2 ms 332 KB Output is correct
39 Correct 2 ms 460 KB Output is correct
40 Correct 2 ms 460 KB Output is correct
41 Correct 2 ms 460 KB Output is correct
42 Correct 2 ms 460 KB Output is correct
43 Correct 2 ms 460 KB Output is correct
44 Correct 2 ms 460 KB Output is correct
45 Correct 2 ms 460 KB Output is correct
46 Correct 2 ms 460 KB Output is correct
47 Correct 2 ms 460 KB Output is correct
48 Correct 2 ms 440 KB Output is correct
49 Correct 2 ms 460 KB Output is correct
50 Correct 2 ms 460 KB Output is correct
51 Correct 2 ms 380 KB Output is correct
52 Correct 2 ms 332 KB Output is correct
53 Correct 2 ms 460 KB Output is correct
54 Correct 2 ms 460 KB Output is correct
55 Correct 2 ms 460 KB Output is correct
56 Correct 2 ms 460 KB Output is correct
57 Correct 2 ms 460 KB Output is correct
58 Correct 2 ms 460 KB Output is correct
59 Correct 2 ms 460 KB Output is correct
60 Correct 2 ms 460 KB Output is correct
61 Correct 2 ms 436 KB Output is correct
62 Correct 2 ms 460 KB Output is correct
63 Correct 2 ms 332 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 292 KB Output is correct
22 Correct 2 ms 332 KB Output is correct
23 Correct 2 ms 332 KB Output is correct
24 Correct 2 ms 332 KB Output is correct
25 Correct 2 ms 332 KB Output is correct
26 Correct 2 ms 332 KB Output is correct
27 Correct 2 ms 400 KB Output is correct
28 Correct 2 ms 436 KB Output is correct
29 Correct 2 ms 576 KB Output is correct
30 Correct 2 ms 460 KB Output is correct
31 Correct 2 ms 332 KB Output is correct
32 Correct 2 ms 332 KB Output is correct
33 Correct 2 ms 332 KB Output is correct
34 Correct 2 ms 332 KB Output is correct
35 Correct 2 ms 332 KB Output is correct
36 Correct 2 ms 332 KB Output is correct
37 Correct 2 ms 332 KB Output is correct
38 Correct 2 ms 332 KB Output is correct
39 Correct 2 ms 460 KB Output is correct
40 Correct 2 ms 460 KB Output is correct
41 Correct 2 ms 460 KB Output is correct
42 Correct 2 ms 460 KB Output is correct
43 Correct 2 ms 460 KB Output is correct
44 Correct 2 ms 460 KB Output is correct
45 Correct 2 ms 460 KB Output is correct
46 Correct 2 ms 460 KB Output is correct
47 Correct 2 ms 460 KB Output is correct
48 Correct 2 ms 440 KB Output is correct
49 Correct 2 ms 460 KB Output is correct
50 Correct 2 ms 460 KB Output is correct
51 Correct 2 ms 380 KB Output is correct
52 Correct 2 ms 332 KB Output is correct
53 Correct 2 ms 460 KB Output is correct
54 Correct 2 ms 460 KB Output is correct
55 Correct 2 ms 460 KB Output is correct
56 Correct 2 ms 460 KB Output is correct
57 Correct 2 ms 460 KB Output is correct
58 Correct 2 ms 460 KB Output is correct
59 Correct 2 ms 460 KB Output is correct
60 Correct 2 ms 460 KB Output is correct
61 Correct 2 ms 436 KB Output is correct
62 Correct 2 ms 460 KB Output is correct
63 Correct 2 ms 332 KB Output is correct
64 Correct 256 ms 15156 KB Output is correct
65 Correct 271 ms 15136 KB Output is correct
66 Correct 261 ms 15360 KB Output is correct
67 Correct 298 ms 15064 KB Output is correct
68 Correct 299 ms 15160 KB Output is correct
69 Correct 253 ms 15184 KB Output is correct
70 Correct 285 ms 15112 KB Output is correct
71 Correct 271 ms 15064 KB Output is correct
72 Correct 249 ms 15176 KB Output is correct
73 Correct 270 ms 27756 KB Output is correct
74 Correct 274 ms 27644 KB Output is correct
75 Correct 268 ms 14964 KB Output is correct
76 Correct 259 ms 14996 KB Output is correct
77 Correct 267 ms 15068 KB Output is correct
78 Correct 263 ms 15136 KB Output is correct
79 Correct 254 ms 15116 KB Output is correct
80 Correct 252 ms 15168 KB Output is correct
81 Correct 228 ms 15420 KB Output is correct
82 Correct 240 ms 15536 KB Output is correct
83 Correct 266 ms 20308 KB Output is correct
84 Correct 259 ms 22484 KB Output is correct
85 Correct 273 ms 22104 KB Output is correct
86 Correct 255 ms 16428 KB Output is correct
87 Correct 264 ms 16012 KB Output is correct
88 Correct 289 ms 16308 KB Output is correct
89 Correct 291 ms 16416 KB Output is correct
90 Correct 265 ms 16144 KB Output is correct
91 Correct 255 ms 16324 KB Output is correct
92 Correct 255 ms 16736 KB Output is correct
93 Correct 255 ms 19024 KB Output is correct
94 Correct 275 ms 20928 KB Output is correct
95 Correct 253 ms 19604 KB Output is correct
96 Correct 244 ms 17744 KB Output is correct
97 Correct 240 ms 16212 KB Output is correct
98 Correct 253 ms 15712 KB Output is correct
99 Correct 262 ms 15444 KB Output is correct
100 Correct 261 ms 18644 KB Output is correct
101 Correct 251 ms 16612 KB Output is correct
102 Correct 280 ms 15944 KB Output is correct
103 Correct 250 ms 15704 KB Output is correct
104 Correct 201 ms 16056 KB Output is correct
105 Correct 292 ms 24532 KB Output is correct
106 Correct 194 ms 15852 KB Output is correct
107 Correct 195 ms 15964 KB Output is correct
108 Correct 298 ms 28656 KB Output is correct
109 Correct 203 ms 16056 KB Output is correct
110 Correct 297 ms 28768 KB Output is correct
111 Correct 250 ms 15292 KB Output is correct