답안 #534694

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
534694	2022-03-08T14:38:50 Z	michao	Power Plant (JOI20_power)	C++14	47 / 100	1500 ms	45380 KB

power

#include <bits/stdc++.h>
#define int long long
#define mp make_pair
#define pb push_back
#define ld long double
#define pii pair<int,int>
#define sz(x) (int)x.size()
#define piii pair<pii,pii>
#define precise cout<<fixed<<setprecision(10)
#define st first
#define nd second
#define ins insert
#define vi vector<int>
#define BOOST ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0)
using namespace std;
const int MAX=2e5+5;
vi P[MAX];
int c[MAX];
int dp[MAX];
char s[MAX];
int ans=0;

void dfs(int u,int fa){
	vi d;
	d.clear();
	vi wrzut;
	for (auto it:P[u]){
		if (it==fa)continue;
		dfs(it,u);
		d.pb(it);
		wrzut.pb(dp[it]);
	}
	
	if (c[u]==0){
		for (auto v:d)dp[u]+=dp[v];
		ans=max(ans,dp[u]);
	}
	else{
		assert(c[u]==1);
		int sum=0;
		for (auto v:d)sum+=dp[v];
		if (sum==0)dp[u]=1,ans=max(ans,dp[u]);
		else{
			dp[u]=max(1LL,sum-1);
			sort(wrzut.begin(),wrzut.end());
			if (sz(wrzut)){
				ans=max(ans,wrzut.back()+1);
			}
			ans=max(ans,dp[u]);
		}
	}
}
int32_t main(){
  BOOST;
  int n;
  cin>>n;
  for (int i=1;i<=n-1;i++){
		int a,b;
		cin>>a>>b;
		P[a].pb(b);
		P[b].pb(a);
  }
  for (int i=1;i<=n;i++){
		cin>>s[i];
		c[i]=s[i]-'0';
  }
  dfs(1,-1);
  for (int i=1;i<=n;i++)cerr<<"DPEK "<<i<<" "<<dp[i]<<"\n";
  cout<<ans;
  return 0; 
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	5012 KB	Output is correct
2	Correct	4 ms	5016 KB	Output is correct
3	Correct	3 ms	4940 KB	Output is correct
4	Correct	3 ms	4940 KB	Output is correct
5	Correct	4 ms	4940 KB	Output is correct
6	Correct	3 ms	4940 KB	Output is correct
7	Correct	3 ms	5012 KB	Output is correct
8	Correct	3 ms	5020 KB	Output is correct
9	Correct	3 ms	5012 KB	Output is correct
10	Correct	3 ms	4940 KB	Output is correct
11	Correct	3 ms	5020 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	5016 KB	Output is correct
15	Correct	3 ms	4940 KB	Output is correct
16	Correct	4 ms	4940 KB	Output is correct
17	Correct	5 ms	4940 KB	Output is correct
18	Correct	3 ms	4940 KB	Output is correct
19	Correct	3 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

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	5012 KB	Output is correct
2	Correct	4 ms	5016 KB	Output is correct
3	Correct	3 ms	4940 KB	Output is correct
4	Correct	3 ms	4940 KB	Output is correct
5	Correct	4 ms	4940 KB	Output is correct
6	Correct	3 ms	4940 KB	Output is correct
7	Correct	3 ms	5012 KB	Output is correct
8	Correct	3 ms	5020 KB	Output is correct
9	Correct	3 ms	5012 KB	Output is correct
10	Correct	3 ms	4940 KB	Output is correct
11	Correct	3 ms	5020 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	5016 KB	Output is correct
15	Correct	3 ms	4940 KB	Output is correct
16	Correct	4 ms	4940 KB	Output is correct
17	Correct	5 ms	4940 KB	Output is correct
18	Correct	3 ms	4940 KB	Output is correct
19	Correct	3 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	15 ms	5176 KB	Output is correct
23	Correct	16 ms	5068 KB	Output is correct
24	Correct	15 ms	5076 KB	Output is correct
25	Correct	16 ms	5168 KB	Output is correct
26	Correct	18 ms	5068 KB	Output is correct
27	Correct	14 ms	5068 KB	Output is correct
28	Correct	14 ms	5188 KB	Output is correct
29	Correct	17 ms	5324 KB	Output is correct
30	Correct	20 ms	5324 KB	Output is correct
31	Correct	17 ms	5192 KB	Output is correct
32	Correct	17 ms	5068 KB	Output is correct
33	Correct	20 ms	5128 KB	Output is correct
34	Correct	15 ms	5148 KB	Output is correct
35	Correct	15 ms	5164 KB	Output is correct
36	Correct	15 ms	5068 KB	Output is correct
37	Correct	14 ms	5196 KB	Output is correct
38	Correct	17 ms	5160 KB	Output is correct
39	Correct	15 ms	5280 KB	Output is correct
40	Correct	24 ms	5248 KB	Output is correct
41	Correct	17 ms	5280 KB	Output is correct
42	Correct	17 ms	5248 KB	Output is correct
43	Correct	18 ms	5216 KB	Output is correct
44	Correct	17 ms	5208 KB	Output is correct
45	Correct	16 ms	5328 KB	Output is correct
46	Correct	17 ms	5216 KB	Output is correct
47	Correct	14 ms	5196 KB	Output is correct
48	Correct	16 ms	5324 KB	Output is correct
49	Correct	16 ms	5356 KB	Output is correct
50	Correct	23 ms	5196 KB	Output is correct
51	Correct	16 ms	5236 KB	Output is correct
52	Correct	19 ms	5180 KB	Output is correct
53	Correct	15 ms	5244 KB	Output is correct
54	Correct	14 ms	5152 KB	Output is correct
55	Correct	15 ms	5156 KB	Output is correct
56	Correct	16 ms	5224 KB	Output is correct
57	Correct	15 ms	5432 KB	Output is correct
58	Correct	16 ms	5248 KB	Output is correct
59	Correct	16 ms	5236 KB	Output is correct
60	Correct	17 ms	5324 KB	Output is correct
61	Correct	16 ms	5236 KB	Output is correct
62	Correct	17 ms	5324 KB	Output is correct
63	Correct	20 ms	5156 KB	Output is correct

Subtask #3
0.0 / 53.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	5012 KB	Output is correct
2	Correct	4 ms	5016 KB	Output is correct
3	Correct	3 ms	4940 KB	Output is correct
4	Correct	3 ms	4940 KB	Output is correct
5	Correct	4 ms	4940 KB	Output is correct
6	Correct	3 ms	4940 KB	Output is correct
7	Correct	3 ms	5012 KB	Output is correct
8	Correct	3 ms	5020 KB	Output is correct
9	Correct	3 ms	5012 KB	Output is correct
10	Correct	3 ms	4940 KB	Output is correct
11	Correct	3 ms	5020 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	5016 KB	Output is correct
15	Correct	3 ms	4940 KB	Output is correct
16	Correct	4 ms	4940 KB	Output is correct
17	Correct	5 ms	4940 KB	Output is correct
18	Correct	3 ms	4940 KB	Output is correct
19	Correct	3 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	15 ms	5176 KB	Output is correct
23	Correct	16 ms	5068 KB	Output is correct
24	Correct	15 ms	5076 KB	Output is correct
25	Correct	16 ms	5168 KB	Output is correct
26	Correct	18 ms	5068 KB	Output is correct
27	Correct	14 ms	5068 KB	Output is correct
28	Correct	14 ms	5188 KB	Output is correct
29	Correct	17 ms	5324 KB	Output is correct
30	Correct	20 ms	5324 KB	Output is correct
31	Correct	17 ms	5192 KB	Output is correct
32	Correct	17 ms	5068 KB	Output is correct
33	Correct	20 ms	5128 KB	Output is correct
34	Correct	15 ms	5148 KB	Output is correct
35	Correct	15 ms	5164 KB	Output is correct
36	Correct	15 ms	5068 KB	Output is correct
37	Correct	14 ms	5196 KB	Output is correct
38	Correct	17 ms	5160 KB	Output is correct
39	Correct	15 ms	5280 KB	Output is correct
40	Correct	24 ms	5248 KB	Output is correct
41	Correct	17 ms	5280 KB	Output is correct
42	Correct	17 ms	5248 KB	Output is correct
43	Correct	18 ms	5216 KB	Output is correct
44	Correct	17 ms	5208 KB	Output is correct
45	Correct	16 ms	5328 KB	Output is correct
46	Correct	17 ms	5216 KB	Output is correct
47	Correct	14 ms	5196 KB	Output is correct
48	Correct	16 ms	5324 KB	Output is correct
49	Correct	16 ms	5356 KB	Output is correct
50	Correct	23 ms	5196 KB	Output is correct
51	Correct	16 ms	5236 KB	Output is correct
52	Correct	19 ms	5180 KB	Output is correct
53	Correct	15 ms	5244 KB	Output is correct
54	Correct	14 ms	5152 KB	Output is correct
55	Correct	15 ms	5156 KB	Output is correct
56	Correct	16 ms	5224 KB	Output is correct
57	Correct	15 ms	5432 KB	Output is correct
58	Correct	16 ms	5248 KB	Output is correct
59	Correct	16 ms	5236 KB	Output is correct
60	Correct	17 ms	5324 KB	Output is correct
61	Correct	16 ms	5236 KB	Output is correct
62	Correct	17 ms	5324 KB	Output is correct
63	Correct	20 ms	5156 KB	Output is correct
64	Correct	1393 ms	21144 KB	Output is correct
65	Correct	1368 ms	21232 KB	Output is correct
66	Correct	1402 ms	21068 KB	Output is correct
67	Correct	1390 ms	21156 KB	Output is correct
68	Correct	1342 ms	21092 KB	Output is correct
69	Correct	1361 ms	21152 KB	Output is correct
70	Correct	1414 ms	21100 KB	Output is correct
71	Correct	1356 ms	21128 KB	Output is correct
72	Correct	1355 ms	21324 KB	Output is correct
73	Correct	1349 ms	45380 KB	Output is correct
74	Correct	1425 ms	45236 KB	Output is correct
75	Correct	1336 ms	22348 KB	Output is correct
76	Correct	1395 ms	22256 KB	Output is correct
77	Correct	1482 ms	20980 KB	Output is correct
78	Correct	1455 ms	21072 KB	Output is correct
79	Correct	1473 ms	21080 KB	Output is correct
80	Correct	1333 ms	21060 KB	Output is correct
81	Correct	1369 ms	21336 KB	Output is correct
82	Correct	1474 ms	21368 KB	Output is correct
83	Correct	1408 ms	32188 KB	Output is correct
84	Execution timed out	1502 ms	36960 KB	Time limit exceeded
85	Halted	0 ms	0 KB	-

답안 #534694

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 41.0 / 41.0

Subtask #3 0.0 / 53.0

Subtask #1
6.0 / 6.0

Subtask #2
41.0 / 41.0

Subtask #3
0.0 / 53.0