답안 #391203

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
391203	2021-04-18T08:25:03 Z	keta_tsimakuridze	Power Plant (JOI20_power)	C++14	100 / 100	291 ms	29660 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], max(mx-(s[u]=='1'),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

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	5072 KB	Output is correct
2	Correct	3 ms	4940 KB	Output is correct
3	Correct	3 ms	4940 KB	Output is correct
4	Correct	4 ms	4940 KB	Output is correct
5	Correct	4 ms	4996 KB	Output is correct
6	Correct	3 ms	4940 KB	Output is correct
7	Correct	3 ms	4996 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	4940 KB	Output is correct
11	Correct	3 ms	5000 KB	Output is correct
12	Correct	3 ms	5000 KB	Output is correct
13	Correct	4 ms	4940 KB	Output is correct
14	Correct	3 ms	4908 KB	Output is correct
15	Correct	4 ms	4940 KB	Output is correct
16	Correct	3 ms	4996 KB	Output is correct
17	Correct	3 ms	5044 KB	Output is correct
18	Correct	4 ms	4944 KB	Output is correct
19	Correct	3 ms	4948 KB	Output is correct
20	Correct	3 ms	4940 KB	Output is correct
21	Correct	4 ms	4992 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	5072 KB	Output is correct
2	Correct	3 ms	4940 KB	Output is correct
3	Correct	3 ms	4940 KB	Output is correct
4	Correct	4 ms	4940 KB	Output is correct
5	Correct	4 ms	4996 KB	Output is correct
6	Correct	3 ms	4940 KB	Output is correct
7	Correct	3 ms	4996 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	4940 KB	Output is correct
11	Correct	3 ms	5000 KB	Output is correct
12	Correct	3 ms	5000 KB	Output is correct
13	Correct	4 ms	4940 KB	Output is correct
14	Correct	3 ms	4908 KB	Output is correct
15	Correct	4 ms	4940 KB	Output is correct
16	Correct	3 ms	4996 KB	Output is correct
17	Correct	3 ms	5044 KB	Output is correct
18	Correct	4 ms	4944 KB	Output is correct
19	Correct	3 ms	4948 KB	Output is correct
20	Correct	3 ms	4940 KB	Output is correct
21	Correct	4 ms	4992 KB	Output is correct
22	Correct	5 ms	5084 KB	Output is correct
23	Correct	5 ms	5016 KB	Output is correct
24	Correct	5 ms	5068 KB	Output is correct
25	Correct	5 ms	5076 KB	Output is correct
26	Correct	5 ms	5124 KB	Output is correct
27	Correct	5 ms	5076 KB	Output is correct
28	Correct	6 ms	5016 KB	Output is correct
29	Correct	5 ms	5204 KB	Output is correct
30	Correct	5 ms	5204 KB	Output is correct
31	Correct	5 ms	5068 KB	Output is correct
32	Correct	5 ms	5076 KB	Output is correct
33	Correct	5 ms	5012 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	5020 KB	Output is correct
37	Correct	5 ms	5068 KB	Output is correct
38	Correct	5 ms	5076 KB	Output is correct
39	Correct	5 ms	5076 KB	Output is correct
40	Correct	5 ms	5068 KB	Output is correct
41	Correct	5 ms	5076 KB	Output is correct
42	Correct	5 ms	5068 KB	Output is correct
43	Correct	5 ms	5068 KB	Output is correct
44	Correct	5 ms	5068 KB	Output is correct
45	Correct	5 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	5076 KB	Output is correct
49	Correct	5 ms	5156 KB	Output is correct
50	Correct	5 ms	5068 KB	Output is correct
51	Correct	5 ms	5064 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	5020 KB	Output is correct
57	Correct	5 ms	5196 KB	Output is correct
58	Correct	5 ms	5068 KB	Output is correct
59	Correct	5 ms	5128 KB	Output is correct
60	Correct	5 ms	5068 KB	Output is correct
61	Correct	5 ms	5016 KB	Output is correct
62	Correct	5 ms	5196 KB	Output is correct
63	Correct	5 ms	5068 KB	Output is correct

Subtask #3
53.0 / 53.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	5072 KB	Output is correct
2	Correct	3 ms	4940 KB	Output is correct
3	Correct	3 ms	4940 KB	Output is correct
4	Correct	4 ms	4940 KB	Output is correct
5	Correct	4 ms	4996 KB	Output is correct
6	Correct	3 ms	4940 KB	Output is correct
7	Correct	3 ms	4996 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	4940 KB	Output is correct
11	Correct	3 ms	5000 KB	Output is correct
12	Correct	3 ms	5000 KB	Output is correct
13	Correct	4 ms	4940 KB	Output is correct
14	Correct	3 ms	4908 KB	Output is correct
15	Correct	4 ms	4940 KB	Output is correct
16	Correct	3 ms	4996 KB	Output is correct
17	Correct	3 ms	5044 KB	Output is correct
18	Correct	4 ms	4944 KB	Output is correct
19	Correct	3 ms	4948 KB	Output is correct
20	Correct	3 ms	4940 KB	Output is correct
21	Correct	4 ms	4992 KB	Output is correct
22	Correct	5 ms	5084 KB	Output is correct
23	Correct	5 ms	5016 KB	Output is correct
24	Correct	5 ms	5068 KB	Output is correct
25	Correct	5 ms	5076 KB	Output is correct
26	Correct	5 ms	5124 KB	Output is correct
27	Correct	5 ms	5076 KB	Output is correct
28	Correct	6 ms	5016 KB	Output is correct
29	Correct	5 ms	5204 KB	Output is correct
30	Correct	5 ms	5204 KB	Output is correct
31	Correct	5 ms	5068 KB	Output is correct
32	Correct	5 ms	5076 KB	Output is correct
33	Correct	5 ms	5012 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	5020 KB	Output is correct
37	Correct	5 ms	5068 KB	Output is correct
38	Correct	5 ms	5076 KB	Output is correct
39	Correct	5 ms	5076 KB	Output is correct
40	Correct	5 ms	5068 KB	Output is correct
41	Correct	5 ms	5076 KB	Output is correct
42	Correct	5 ms	5068 KB	Output is correct
43	Correct	5 ms	5068 KB	Output is correct
44	Correct	5 ms	5068 KB	Output is correct
45	Correct	5 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	5076 KB	Output is correct
49	Correct	5 ms	5156 KB	Output is correct
50	Correct	5 ms	5068 KB	Output is correct
51	Correct	5 ms	5064 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	5020 KB	Output is correct
57	Correct	5 ms	5196 KB	Output is correct
58	Correct	5 ms	5068 KB	Output is correct
59	Correct	5 ms	5128 KB	Output is correct
60	Correct	5 ms	5068 KB	Output is correct
61	Correct	5 ms	5016 KB	Output is correct
62	Correct	5 ms	5196 KB	Output is correct
63	Correct	5 ms	5068 KB	Output is correct
64	Correct	239 ms	16916 KB	Output is correct
65	Correct	243 ms	16916 KB	Output is correct
66	Correct	243 ms	17028 KB	Output is correct
67	Correct	245 ms	16948 KB	Output is correct
68	Correct	239 ms	16944 KB	Output is correct
69	Correct	262 ms	16940 KB	Output is correct
70	Correct	240 ms	16832 KB	Output is correct
71	Correct	244 ms	16848 KB	Output is correct
72	Correct	242 ms	16868 KB	Output is correct
73	Correct	266 ms	28584 KB	Output is correct
74	Correct	291 ms	28488 KB	Output is correct
75	Correct	244 ms	18068 KB	Output is correct
76	Correct	239 ms	18064 KB	Output is correct
77	Correct	255 ms	16912 KB	Output is correct
78	Correct	250 ms	16820 KB	Output is correct
79	Correct	243 ms	16916 KB	Output is correct
80	Correct	250 ms	16912 KB	Output is correct
81	Correct	222 ms	16972 KB	Output is correct
82	Correct	267 ms	16976 KB	Output is correct
83	Correct	263 ms	21984 KB	Output is correct
84	Correct	258 ms	24112 KB	Output is correct
85	Correct	274 ms	23880 KB	Output is correct
86	Correct	238 ms	18292 KB	Output is correct
87	Correct	245 ms	17680 KB	Output is correct
88	Correct	255 ms	17700 KB	Output is correct
89	Correct	237 ms	17780 KB	Output is correct
90	Correct	237 ms	17612 KB	Output is correct
91	Correct	232 ms	17824 KB	Output is correct
92	Correct	235 ms	18104 KB	Output is correct
93	Correct	248 ms	20408 KB	Output is correct
94	Correct	252 ms	22024 KB	Output is correct
95	Correct	235 ms	20788 KB	Output is correct
96	Correct	240 ms	19048 KB	Output is correct
97	Correct	252 ms	17452 KB	Output is correct
98	Correct	226 ms	17080 KB	Output is correct
99	Correct	243 ms	17116 KB	Output is correct
100	Correct	238 ms	19936 KB	Output is correct
101	Correct	239 ms	17804 KB	Output is correct
102	Correct	240 ms	17200 KB	Output is correct
103	Correct	234 ms	17172 KB	Output is correct
104	Correct	197 ms	17624 KB	Output is correct
105	Correct	263 ms	25292 KB	Output is correct
106	Correct	181 ms	17368 KB	Output is correct
107	Correct	176 ms	17332 KB	Output is correct
108	Correct	273 ms	29400 KB	Output is correct
109	Correct	193 ms	17584 KB	Output is correct
110	Correct	267 ms	29660 KB	Output is correct
111	Correct	231 ms	16984 KB	Output is correct

답안 #391203

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