답안 #763276

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
763276	2023-06-22T07:33:40 Z	nhphan0505	Power Plant (JOI20_power)	C++17	100 / 100	129 ms	30080 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	1 ms	292 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	324 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	0 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 ms	332 KB	Output is correct
11	Correct	0 ms	340 KB	Output is correct
12	Correct	1 ms	288 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	0 ms	324 KB	Output is correct
15	Correct	1 ms	328 KB	Output is correct
16	Correct	0 ms	328 KB	Output is correct
17	Correct	0 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	1 ms	328 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	292 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	324 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	0 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 ms	332 KB	Output is correct
11	Correct	0 ms	340 KB	Output is correct
12	Correct	1 ms	288 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	0 ms	324 KB	Output is correct
15	Correct	1 ms	328 KB	Output is correct
16	Correct	0 ms	328 KB	Output is correct
17	Correct	0 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	1 ms	328 KB	Output is correct
21	Correct	1 ms	340 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	432 KB	Output is correct
27	Correct	1 ms	468 KB	Output is correct
28	Correct	2 ms	468 KB	Output is correct
29	Correct	1 ms	600 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	472 KB	Output is correct
33	Correct	1 ms	468 KB	Output is correct
34	Correct	1 ms	468 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	460 KB	Output is correct
41	Correct	1 ms	468 KB	Output is correct
42	Correct	1 ms	464 KB	Output is correct
43	Correct	1 ms	468 KB	Output is correct
44	Correct	2 ms	488 KB	Output is correct
45	Correct	1 ms	464 KB	Output is correct
46	Correct	1 ms	436 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	464 KB	Output is correct
56	Correct	1 ms	436 KB	Output is correct
57	Correct	1 ms	596 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	2 ms	596 KB	Output is correct
63	Correct	1 ms	468 KB	Output is correct

Subtask #3
53.0 / 53.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	292 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	324 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	0 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 ms	332 KB	Output is correct
11	Correct	0 ms	340 KB	Output is correct
12	Correct	1 ms	288 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	0 ms	324 KB	Output is correct
15	Correct	1 ms	328 KB	Output is correct
16	Correct	0 ms	328 KB	Output is correct
17	Correct	0 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	1 ms	328 KB	Output is correct
21	Correct	1 ms	340 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	432 KB	Output is correct
27	Correct	1 ms	468 KB	Output is correct
28	Correct	2 ms	468 KB	Output is correct
29	Correct	1 ms	600 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	472 KB	Output is correct
33	Correct	1 ms	468 KB	Output is correct
34	Correct	1 ms	468 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	460 KB	Output is correct
41	Correct	1 ms	468 KB	Output is correct
42	Correct	1 ms	464 KB	Output is correct
43	Correct	1 ms	468 KB	Output is correct
44	Correct	2 ms	488 KB	Output is correct
45	Correct	1 ms	464 KB	Output is correct
46	Correct	1 ms	436 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	464 KB	Output is correct
56	Correct	1 ms	436 KB	Output is correct
57	Correct	1 ms	596 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	2 ms	596 KB	Output is correct
63	Correct	1 ms	468 KB	Output is correct
64	Correct	85 ms	17356 KB	Output is correct
65	Correct	115 ms	17380 KB	Output is correct
66	Correct	89 ms	17336 KB	Output is correct
67	Correct	90 ms	17380 KB	Output is correct
68	Correct	82 ms	17344 KB	Output is correct
69	Correct	97 ms	17336 KB	Output is correct
70	Correct	90 ms	17332 KB	Output is correct
71	Correct	110 ms	17356 KB	Output is correct
72	Correct	91 ms	17316 KB	Output is correct
73	Correct	115 ms	29040 KB	Output is correct
74	Correct	104 ms	28884 KB	Output is correct
75	Correct	121 ms	18532 KB	Output is correct
76	Correct	93 ms	18636 KB	Output is correct
77	Correct	115 ms	17376 KB	Output is correct
78	Correct	121 ms	17304 KB	Output is correct
79	Correct	87 ms	17312 KB	Output is correct
80	Correct	102 ms	17356 KB	Output is correct
81	Correct	94 ms	17372 KB	Output is correct
82	Correct	80 ms	17280 KB	Output is correct
83	Correct	110 ms	22520 KB	Output is correct
84	Correct	98 ms	24532 KB	Output is correct
85	Correct	102 ms	24268 KB	Output is correct
86	Correct	129 ms	18752 KB	Output is correct
87	Correct	85 ms	18108 KB	Output is correct
88	Correct	104 ms	18272 KB	Output is correct
89	Correct	93 ms	18252 KB	Output is correct
90	Correct	83 ms	18068 KB	Output is correct
91	Correct	103 ms	18248 KB	Output is correct
92	Correct	94 ms	18636 KB	Output is correct
93	Correct	106 ms	20804 KB	Output is correct
94	Correct	84 ms	22528 KB	Output is correct
95	Correct	76 ms	21176 KB	Output is correct
96	Correct	91 ms	19536 KB	Output is correct
97	Correct	76 ms	18040 KB	Output is correct
98	Correct	76 ms	17484 KB	Output is correct
99	Correct	82 ms	17448 KB	Output is correct
100	Correct	80 ms	20380 KB	Output is correct
101	Correct	109 ms	18360 KB	Output is correct
102	Correct	110 ms	17612 KB	Output is correct
103	Correct	80 ms	17616 KB	Output is correct
104	Correct	53 ms	17808 KB	Output is correct
105	Correct	119 ms	25852 KB	Output is correct
106	Correct	62 ms	17848 KB	Output is correct
107	Correct	50 ms	17792 KB	Output is correct
108	Correct	90 ms	29736 KB	Output is correct
109	Correct	64 ms	17848 KB	Output is correct
110	Correct	101 ms	30080 KB	Output is correct
111	Correct	90 ms	17328 KB	Output is correct

답안 #763276

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