답안 #763277

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
763277	2023-06-22T07:34:09 Z	vjudge1	Power Plant (JOI20_power)	C++17	100 / 100	127 ms	28540 KB

power

#include<bits/stdc++.h>

using namespace std;
typedef long long int ll;
typedef pair<ll, ll> pii;
#define fi first
#define se second
#define gcd __gcd
#define endl '\n'
const int N=200050,M=1000000007;
const ll INF=0x3f3f3f3f3f3f3f3f;

ll n, u, v, cnt[N], dp[N], ans;
bool plant[N], visited[N];
char c;
vector<vector<ll>> adj;

void dfs(ll u){
	visited[u]=1;
	ll mx=0, ct=0, pos=0;
	for(auto v:adj[u]){
		if(!visited[v]){ 
			dfs(v);
			cnt[u]+=cnt[v];
			mx=max(mx, cnt[v]);
			if(cnt[v]) ++ct, pos=v;
		}
	}
	if(plant[u]) dp[u]=mx+1;
	if(ct>1) dp[u]=max(dp[u], cnt[u]-plant[u]);
	else dp[u]=max(dp[u], dp[pos]);
	cnt[u]=max(cnt[u]-plant[u], 1LL*plant[u]);
	// cout<<u<<" "<<dp[u]<<" "<<cnt[u]<<endl;
	ans=max(ans, dp[u]);
}

signed main(){
	ios_base::sync_with_stdio(NULL); 
	cin.tie(nullptr); cout.tie(nullptr);
	cin>>n;
	adj.assign(n+1, {});
	for(ll i=1; i<n; ++i){
		cin>>u>>v;
		adj[u].emplace_back(v);
		adj[v].emplace_back(u);
	}
	for(ll i=1; i<=n; ++i){
		cin>>c;
		plant[i]=c-'0';
		// if(plant[i]) cout<<i<<" ";
	}
	// cout<<endl;
	dfs(1);
	cout<<ans;
    return 0;
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	340 KB	Output is correct
15	Correct	0 ms	340 KB	Output is correct
16	Correct	0 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	0 ms	340 KB	Output is correct
19	Correct	0 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	340 KB	Output is correct
15	Correct	0 ms	340 KB	Output is correct
16	Correct	0 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	0 ms	340 KB	Output is correct
19	Correct	0 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	468 KB	Output is correct
23	Correct	1 ms	468 KB	Output is correct
24	Correct	1 ms	468 KB	Output is correct
25	Correct	1 ms	468 KB	Output is correct
26	Correct	1 ms	468 KB	Output is correct
27	Correct	1 ms	468 KB	Output is correct
28	Correct	1 ms	468 KB	Output is correct
29	Correct	1 ms	596 KB	Output is correct
30	Correct	1 ms	468 KB	Output is correct
31	Correct	1 ms	468 KB	Output is correct
32	Correct	1 ms	468 KB	Output is correct
33	Correct	1 ms	468 KB	Output is correct
34	Correct	1 ms	432 KB	Output is correct
35	Correct	1 ms	468 KB	Output is correct
36	Correct	1 ms	468 KB	Output is correct
37	Correct	1 ms	468 KB	Output is correct
38	Correct	1 ms	468 KB	Output is correct
39	Correct	1 ms	468 KB	Output is correct
40	Correct	1 ms	468 KB	Output is correct
41	Correct	1 ms	468 KB	Output is correct
42	Correct	1 ms	468 KB	Output is correct
43	Correct	1 ms	468 KB	Output is correct
44	Correct	1 ms	468 KB	Output is correct
45	Correct	1 ms	468 KB	Output is correct
46	Correct	1 ms	468 KB	Output is correct
47	Correct	1 ms	468 KB	Output is correct
48	Correct	1 ms	468 KB	Output is correct
49	Correct	1 ms	468 KB	Output is correct
50	Correct	1 ms	468 KB	Output is correct
51	Correct	1 ms	468 KB	Output is correct
52	Correct	1 ms	468 KB	Output is correct
53	Correct	1 ms	468 KB	Output is correct
54	Correct	1 ms	468 KB	Output is correct
55	Correct	1 ms	468 KB	Output is correct
56	Correct	1 ms	468 KB	Output is correct
57	Correct	1 ms	556 KB	Output is correct
58	Correct	1 ms	468 KB	Output is correct
59	Correct	1 ms	468 KB	Output is correct
60	Correct	1 ms	468 KB	Output is correct
61	Correct	1 ms	468 KB	Output is correct
62	Correct	1 ms	468 KB	Output is correct
63	Correct	2 ms	468 KB	Output is correct

Subtask #3
53.0 / 53.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	340 KB	Output is correct
15	Correct	0 ms	340 KB	Output is correct
16	Correct	0 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	0 ms	340 KB	Output is correct
19	Correct	0 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	468 KB	Output is correct
23	Correct	1 ms	468 KB	Output is correct
24	Correct	1 ms	468 KB	Output is correct
25	Correct	1 ms	468 KB	Output is correct
26	Correct	1 ms	468 KB	Output is correct
27	Correct	1 ms	468 KB	Output is correct
28	Correct	1 ms	468 KB	Output is correct
29	Correct	1 ms	596 KB	Output is correct
30	Correct	1 ms	468 KB	Output is correct
31	Correct	1 ms	468 KB	Output is correct
32	Correct	1 ms	468 KB	Output is correct
33	Correct	1 ms	468 KB	Output is correct
34	Correct	1 ms	432 KB	Output is correct
35	Correct	1 ms	468 KB	Output is correct
36	Correct	1 ms	468 KB	Output is correct
37	Correct	1 ms	468 KB	Output is correct
38	Correct	1 ms	468 KB	Output is correct
39	Correct	1 ms	468 KB	Output is correct
40	Correct	1 ms	468 KB	Output is correct
41	Correct	1 ms	468 KB	Output is correct
42	Correct	1 ms	468 KB	Output is correct
43	Correct	1 ms	468 KB	Output is correct
44	Correct	1 ms	468 KB	Output is correct
45	Correct	1 ms	468 KB	Output is correct
46	Correct	1 ms	468 KB	Output is correct
47	Correct	1 ms	468 KB	Output is correct
48	Correct	1 ms	468 KB	Output is correct
49	Correct	1 ms	468 KB	Output is correct
50	Correct	1 ms	468 KB	Output is correct
51	Correct	1 ms	468 KB	Output is correct
52	Correct	1 ms	468 KB	Output is correct
53	Correct	1 ms	468 KB	Output is correct
54	Correct	1 ms	468 KB	Output is correct
55	Correct	1 ms	468 KB	Output is correct
56	Correct	1 ms	468 KB	Output is correct
57	Correct	1 ms	556 KB	Output is correct
58	Correct	1 ms	468 KB	Output is correct
59	Correct	1 ms	468 KB	Output is correct
60	Correct	1 ms	468 KB	Output is correct
61	Correct	1 ms	468 KB	Output is correct
62	Correct	1 ms	468 KB	Output is correct
63	Correct	2 ms	468 KB	Output is correct
64	Correct	102 ms	15844 KB	Output is correct
65	Correct	96 ms	15820 KB	Output is correct
66	Correct	101 ms	15860 KB	Output is correct
67	Correct	80 ms	15820 KB	Output is correct
68	Correct	79 ms	15884 KB	Output is correct
69	Correct	116 ms	15796 KB	Output is correct
70	Correct	109 ms	15796 KB	Output is correct
71	Correct	79 ms	15820 KB	Output is correct
72	Correct	96 ms	15952 KB	Output is correct
73	Correct	114 ms	27440 KB	Output is correct
74	Correct	98 ms	27452 KB	Output is correct
75	Correct	82 ms	16996 KB	Output is correct
76	Correct	84 ms	17100 KB	Output is correct
77	Correct	124 ms	15848 KB	Output is correct
78	Correct	85 ms	15824 KB	Output is correct
79	Correct	127 ms	15784 KB	Output is correct
80	Correct	127 ms	15740 KB	Output is correct
81	Correct	67 ms	15836 KB	Output is correct
82	Correct	109 ms	15724 KB	Output is correct
83	Correct	105 ms	20956 KB	Output is correct
84	Correct	116 ms	23112 KB	Output is correct
85	Correct	120 ms	22696 KB	Output is correct
86	Correct	104 ms	17172 KB	Output is correct
87	Correct	97 ms	16748 KB	Output is correct
88	Correct	78 ms	16648 KB	Output is correct
89	Correct	81 ms	16720 KB	Output is correct
90	Correct	99 ms	16500 KB	Output is correct
91	Correct	104 ms	16708 KB	Output is correct
92	Correct	93 ms	17036 KB	Output is correct
93	Correct	109 ms	19324 KB	Output is correct
94	Correct	76 ms	20956 KB	Output is correct
95	Correct	76 ms	19644 KB	Output is correct
96	Correct	76 ms	17900 KB	Output is correct
97	Correct	70 ms	16400 KB	Output is correct
98	Correct	91 ms	16032 KB	Output is correct
99	Correct	73 ms	15960 KB	Output is correct
100	Correct	97 ms	18828 KB	Output is correct
101	Correct	81 ms	16776 KB	Output is correct
102	Correct	78 ms	16092 KB	Output is correct
103	Correct	112 ms	16088 KB	Output is correct
104	Correct	56 ms	16324 KB	Output is correct
105	Correct	92 ms	24288 KB	Output is correct
106	Correct	50 ms	16324 KB	Output is correct
107	Correct	52 ms	16252 KB	Output is correct
108	Correct	93 ms	28140 KB	Output is correct
109	Correct	51 ms	16320 KB	Output is correct
110	Correct	99 ms	28540 KB	Output is correct
111	Correct	82 ms	15820 KB	Output is correct

답안 #763277

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