Submission #391204

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
391204	2021-04-18T08:25:35 Z	keta_tsimakuridze	Power Plant (JOI20_power)	C++14	100 / 100	324 ms	27532 KB

power

#include<bits/stdc++.h>
#define f first
#define int long long
#define s second
using namespace std;
const int N=2e5+5,mod=1e9+7;
int t,ans,dp[N],u,v,n;
string s;
vector<int>V[N];
void dfs(int u,int p){
	if(s[u]=='1')  dp[u] = 1;
	int sum = 0, mx = 0;
	for(int i=0;i<V[u].size();i++){
		if(V[u][i] == p) continue;
		dfs(V[u][i],u); 
		sum+=dp[V[u][i]];
		mx=max(mx,dp[V[u][i]]);
	}
	ans = max(ans,max(mx+(s[u]=='1'), sum - (s[u]=='1')));
	dp[u] = max(dp[u], sum-(s[u]=='1'));
}
 main(){
	// t=1;
	cin>>n;
	for(int i=2;i<=n;i++){
		cin>>u>>v;
		V[u].push_back(v);
		V[v].push_back(u);
	}
	cin>>s;
	s='#'+s;
	dfs(1,0);
	cout<<ans;
}

Compilation message

power.cpp: In function 'void dfs(long long int, long long int)':
power.cpp:13:15: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |  for(int i=0;i<V[u].size();i++){
      |              ~^~~~~~~~~~~~
power.cpp: At global scope:
power.cpp:22:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   22 |  main(){
      |       ^

Subtask #1
6.0 / 6.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	4940 KB	Output is correct
2	Correct	3 ms	4940 KB	Output is correct
3	Correct	3 ms	4940 KB	Output is correct
4	Correct	3 ms	4940 KB	Output is correct
5	Correct	3 ms	4940 KB	Output is correct
6	Correct	3 ms	4940 KB	Output is correct
7	Correct	3 ms	4940 KB	Output is correct
8	Correct	3 ms	4940 KB	Output is correct
9	Correct	3 ms	4940 KB	Output is correct
10	Correct	3 ms	4944 KB	Output is correct
11	Correct	3 ms	4940 KB	Output is correct
12	Correct	4 ms	4940 KB	Output is correct
13	Correct	3 ms	4940 KB	Output is correct
14	Correct	3 ms	4940 KB	Output is correct
15	Correct	3 ms	4940 KB	Output is correct
16	Correct	3 ms	4940 KB	Output is correct
17	Correct	3 ms	4940 KB	Output is correct
18	Correct	3 ms	4940 KB	Output is correct
19	Correct	4 ms	4940 KB	Output is correct
20	Correct	3 ms	4940 KB	Output is correct
21	Correct	3 ms	4940 KB	Output is correct

Subtask #2
41.0 / 41.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	4940 KB	Output is correct
2	Correct	3 ms	4940 KB	Output is correct
3	Correct	3 ms	4940 KB	Output is correct
4	Correct	3 ms	4940 KB	Output is correct
5	Correct	3 ms	4940 KB	Output is correct
6	Correct	3 ms	4940 KB	Output is correct
7	Correct	3 ms	4940 KB	Output is correct
8	Correct	3 ms	4940 KB	Output is correct
9	Correct	3 ms	4940 KB	Output is correct
10	Correct	3 ms	4944 KB	Output is correct
11	Correct	3 ms	4940 KB	Output is correct
12	Correct	4 ms	4940 KB	Output is correct
13	Correct	3 ms	4940 KB	Output is correct
14	Correct	3 ms	4940 KB	Output is correct
15	Correct	3 ms	4940 KB	Output is correct
16	Correct	3 ms	4940 KB	Output is correct
17	Correct	3 ms	4940 KB	Output is correct
18	Correct	3 ms	4940 KB	Output is correct
19	Correct	4 ms	4940 KB	Output is correct
20	Correct	3 ms	4940 KB	Output is correct
21	Correct	3 ms	4940 KB	Output is correct
22	Correct	5 ms	5068 KB	Output is correct
23	Correct	4 ms	5068 KB	Output is correct
24	Correct	4 ms	5044 KB	Output is correct
25	Correct	5 ms	5068 KB	Output is correct
26	Correct	5 ms	5068 KB	Output is correct
27	Correct	5 ms	5068 KB	Output is correct
28	Correct	5 ms	5068 KB	Output is correct
29	Correct	5 ms	5140 KB	Output is correct
30	Correct	5 ms	5068 KB	Output is correct
31	Correct	5 ms	5004 KB	Output is correct
32	Correct	5 ms	5068 KB	Output is correct
33	Correct	5 ms	5068 KB	Output is correct
34	Correct	5 ms	5068 KB	Output is correct
35	Correct	5 ms	5068 KB	Output is correct
36	Correct	5 ms	5072 KB	Output is correct
37	Correct	5 ms	5104 KB	Output is correct
38	Correct	5 ms	5068 KB	Output is correct
39	Correct	5 ms	5068 KB	Output is correct
40	Correct	5 ms	5068 KB	Output is correct
41	Correct	5 ms	5068 KB	Output is correct
42	Correct	5 ms	5068 KB	Output is correct
43	Correct	5 ms	5068 KB	Output is correct
44	Correct	4 ms	5068 KB	Output is correct
45	Correct	6 ms	5068 KB	Output is correct
46	Correct	5 ms	5068 KB	Output is correct
47	Correct	5 ms	5068 KB	Output is correct
48	Correct	5 ms	5068 KB	Output is correct
49	Correct	5 ms	5072 KB	Output is correct
50	Correct	4 ms	5068 KB	Output is correct
51	Correct	5 ms	5068 KB	Output is correct
52	Correct	5 ms	5068 KB	Output is correct
53	Correct	5 ms	5068 KB	Output is correct
54	Correct	5 ms	5068 KB	Output is correct
55	Correct	5 ms	5068 KB	Output is correct
56	Correct	5 ms	5068 KB	Output is correct
57	Correct	5 ms	5196 KB	Output is correct
58	Correct	4 ms	5068 KB	Output is correct
59	Correct	5 ms	5068 KB	Output is correct
60	Correct	5 ms	5068 KB	Output is correct
61	Correct	4 ms	5068 KB	Output is correct
62	Correct	4 ms	5196 KB	Output is correct
63	Correct	4 ms	5068 KB	Output is correct

Subtask #3
53.0 / 53.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	4940 KB	Output is correct
2	Correct	3 ms	4940 KB	Output is correct
3	Correct	3 ms	4940 KB	Output is correct
4	Correct	3 ms	4940 KB	Output is correct
5	Correct	3 ms	4940 KB	Output is correct
6	Correct	3 ms	4940 KB	Output is correct
7	Correct	3 ms	4940 KB	Output is correct
8	Correct	3 ms	4940 KB	Output is correct
9	Correct	3 ms	4940 KB	Output is correct
10	Correct	3 ms	4944 KB	Output is correct
11	Correct	3 ms	4940 KB	Output is correct
12	Correct	4 ms	4940 KB	Output is correct
13	Correct	3 ms	4940 KB	Output is correct
14	Correct	3 ms	4940 KB	Output is correct
15	Correct	3 ms	4940 KB	Output is correct
16	Correct	3 ms	4940 KB	Output is correct
17	Correct	3 ms	4940 KB	Output is correct
18	Correct	3 ms	4940 KB	Output is correct
19	Correct	4 ms	4940 KB	Output is correct
20	Correct	3 ms	4940 KB	Output is correct
21	Correct	3 ms	4940 KB	Output is correct
22	Correct	5 ms	5068 KB	Output is correct
23	Correct	4 ms	5068 KB	Output is correct
24	Correct	4 ms	5044 KB	Output is correct
25	Correct	5 ms	5068 KB	Output is correct
26	Correct	5 ms	5068 KB	Output is correct
27	Correct	5 ms	5068 KB	Output is correct
28	Correct	5 ms	5068 KB	Output is correct
29	Correct	5 ms	5140 KB	Output is correct
30	Correct	5 ms	5068 KB	Output is correct
31	Correct	5 ms	5004 KB	Output is correct
32	Correct	5 ms	5068 KB	Output is correct
33	Correct	5 ms	5068 KB	Output is correct
34	Correct	5 ms	5068 KB	Output is correct
35	Correct	5 ms	5068 KB	Output is correct
36	Correct	5 ms	5072 KB	Output is correct
37	Correct	5 ms	5104 KB	Output is correct
38	Correct	5 ms	5068 KB	Output is correct
39	Correct	5 ms	5068 KB	Output is correct
40	Correct	5 ms	5068 KB	Output is correct
41	Correct	5 ms	5068 KB	Output is correct
42	Correct	5 ms	5068 KB	Output is correct
43	Correct	5 ms	5068 KB	Output is correct
44	Correct	4 ms	5068 KB	Output is correct
45	Correct	6 ms	5068 KB	Output is correct
46	Correct	5 ms	5068 KB	Output is correct
47	Correct	5 ms	5068 KB	Output is correct
48	Correct	5 ms	5068 KB	Output is correct
49	Correct	5 ms	5072 KB	Output is correct
50	Correct	4 ms	5068 KB	Output is correct
51	Correct	5 ms	5068 KB	Output is correct
52	Correct	5 ms	5068 KB	Output is correct
53	Correct	5 ms	5068 KB	Output is correct
54	Correct	5 ms	5068 KB	Output is correct
55	Correct	5 ms	5068 KB	Output is correct
56	Correct	5 ms	5068 KB	Output is correct
57	Correct	5 ms	5196 KB	Output is correct
58	Correct	4 ms	5068 KB	Output is correct
59	Correct	5 ms	5068 KB	Output is correct
60	Correct	5 ms	5068 KB	Output is correct
61	Correct	4 ms	5068 KB	Output is correct
62	Correct	4 ms	5196 KB	Output is correct
63	Correct	4 ms	5068 KB	Output is correct
64	Correct	234 ms	14228 KB	Output is correct
65	Correct	241 ms	14208 KB	Output is correct
66	Correct	248 ms	14204 KB	Output is correct
67	Correct	259 ms	14256 KB	Output is correct
68	Correct	270 ms	14232 KB	Output is correct
69	Correct	260 ms	14328 KB	Output is correct
70	Correct	243 ms	14296 KB	Output is correct
71	Correct	284 ms	14308 KB	Output is correct
72	Correct	267 ms	14500 KB	Output is correct
73	Correct	324 ms	26256 KB	Output is correct
74	Correct	284 ms	26488 KB	Output is correct
75	Correct	258 ms	16020 KB	Output is correct
76	Correct	282 ms	16152 KB	Output is correct
77	Correct	272 ms	14756 KB	Output is correct
78	Correct	244 ms	14712 KB	Output is correct
79	Correct	295 ms	14740 KB	Output is correct
80	Correct	248 ms	14764 KB	Output is correct
81	Correct	223 ms	14860 KB	Output is correct
82	Correct	243 ms	14780 KB	Output is correct
83	Correct	286 ms	19860 KB	Output is correct
84	Correct	271 ms	22024 KB	Output is correct
85	Correct	313 ms	21720 KB	Output is correct
86	Correct	241 ms	16148 KB	Output is correct
87	Correct	242 ms	15572 KB	Output is correct
88	Correct	235 ms	15620 KB	Output is correct
89	Correct	228 ms	15712 KB	Output is correct
90	Correct	223 ms	15408 KB	Output is correct
91	Correct	237 ms	15692 KB	Output is correct
92	Correct	233 ms	16056 KB	Output is correct
93	Correct	227 ms	18360 KB	Output is correct
94	Correct	231 ms	19964 KB	Output is correct
95	Correct	230 ms	18632 KB	Output is correct
96	Correct	225 ms	16752 KB	Output is correct
97	Correct	227 ms	15400 KB	Output is correct
98	Correct	219 ms	14996 KB	Output is correct
99	Correct	229 ms	14868 KB	Output is correct
100	Correct	243 ms	17716 KB	Output is correct
101	Correct	234 ms	15760 KB	Output is correct
102	Correct	230 ms	15000 KB	Output is correct
103	Correct	230 ms	15124 KB	Output is correct
104	Correct	185 ms	15408 KB	Output is correct
105	Correct	259 ms	23156 KB	Output is correct
106	Correct	181 ms	15380 KB	Output is correct
107	Correct	183 ms	15412 KB	Output is correct
108	Correct	266 ms	27204 KB	Output is correct
109	Correct	188 ms	15316 KB	Output is correct
110	Correct	260 ms	27532 KB	Output is correct
111	Correct	237 ms	14788 KB	Output is correct

Submission #391204

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 41.0 / 41.0

Subtask #3 53.0 / 53.0

Subtask #1
6.0 / 6.0

Subtask #2
41.0 / 41.0

Subtask #3
53.0 / 53.0