답안 #763063

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
763063	2023-06-22T02:56:11 Z	vjudge1	Power Plant (JOI20_power)	C++17	100 / 100	166 ms	29544 KB

power

#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
typedef long double ld;
typedef vector<ll> vll;
typedef vector<vll> vvll;
typedef stack<ll> sll;
typedef queue<ll> qll;
typedef deque<ll> dll;
typedef pair<ll, ll> pll;
typedef vector<pll> vpll;
 
#define endl '\n'
#define pb push_back
#define FOR(i,a,b) for(int i = a; i <= b; i++)
#define BACK(i,a,b) for(int i = a; i >= b; i--)
#define fastIO ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define fi first
#define se second
#define bp __builtin_popcountll
#define gcd __gcd
#define bit(i,n) ((n>>i)&1)
#define setmin(x,y) x=min((x),(y))
#define setmax(x,y) x=max((x),(y))
 
const int MAXN = (2e5)+5;
// const ll SQRT = 4;
const long long inf = 1e18;
const long long MOD = 998244353;

vector<int> adj[MAXN];
int n,f[MAXN],ans,par[MAXN],cnt[MAXN];
bool gen[MAXN];

int dp(int u)
{
	if(f[u]!=INT_MAX) return f[u];
	int res=cnt[u]-gen[u];
	for(auto v:adj[u]) if(v!=par[u]) if(dp(v)-gen[v]-gen[u]>0) res+=dp(v)-gen[v]-gen[u];
	return f[u]=res;
}

void dfs(int u)
{
	for(auto v:adj[u]) if(v!=par[u])
	{
		par[v]=u;
		dfs(v);
	}
}

signed main()
{
	fastIO
	// freopen("in.txt","r",stdin);
	// freopen("out.txt","w",stdout);
	cin>>n;
	FOR(i,1,n-1)
	{
		int u,v;
		cin>>u>>v;
		adj[u].pb(v);
		adj[v].pb(u);
	}
	FOR(i,1,n)
	{
		char c;
		cin>>c;
		gen[i]=(c=='1');
		ans=max(ans,(int)gen[i]);
	}
	dfs(1);
	FOR(i,1,n) f[i]=INT_MAX;
	FOR(i,1,n) for(auto a:adj[i]) if(gen[a]) {cnt[i]++; if(gen[i]) ans=2;}
	FOR(i,1,n) ans=max(ans,dp(i));
	cout<<ans;
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	4948 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	3 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	3 ms	4948 KB	Output is correct
7	Correct	3 ms	4948 KB	Output is correct
8	Correct	4 ms	5036 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	3 ms	4948 KB	Output is correct
12	Correct	3 ms	4948 KB	Output is correct
13	Correct	3 ms	4948 KB	Output is correct
14	Correct	3 ms	4932 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	3 ms	4948 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	2 ms	4948 KB	Output is correct
19	Correct	3 ms	4948 KB	Output is correct
20	Correct	3 ms	4924 KB	Output is correct
21	Correct	3 ms	4948 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	4948 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	3 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	3 ms	4948 KB	Output is correct
7	Correct	3 ms	4948 KB	Output is correct
8	Correct	4 ms	5036 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	3 ms	4948 KB	Output is correct
12	Correct	3 ms	4948 KB	Output is correct
13	Correct	3 ms	4948 KB	Output is correct
14	Correct	3 ms	4932 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	3 ms	4948 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	2 ms	4948 KB	Output is correct
19	Correct	3 ms	4948 KB	Output is correct
20	Correct	3 ms	4924 KB	Output is correct
21	Correct	3 ms	4948 KB	Output is correct
22	Correct	3 ms	5076 KB	Output is correct
23	Correct	4 ms	5076 KB	Output is correct
24	Correct	3 ms	5076 KB	Output is correct
25	Correct	4 ms	5076 KB	Output is correct
26	Correct	3 ms	5076 KB	Output is correct
27	Correct	3 ms	5076 KB	Output is correct
28	Correct	3 ms	5076 KB	Output is correct
29	Correct	3 ms	5204 KB	Output is correct
30	Correct	3 ms	5204 KB	Output is correct
31	Correct	3 ms	5076 KB	Output is correct
32	Correct	4 ms	5076 KB	Output is correct
33	Correct	5 ms	5076 KB	Output is correct
34	Correct	4 ms	5076 KB	Output is correct
35	Correct	3 ms	5076 KB	Output is correct
36	Correct	3 ms	5076 KB	Output is correct
37	Correct	3 ms	5076 KB	Output is correct
38	Correct	3 ms	5076 KB	Output is correct
39	Correct	3 ms	5164 KB	Output is correct
40	Correct	3 ms	5076 KB	Output is correct
41	Correct	4 ms	5076 KB	Output is correct
42	Correct	3 ms	5076 KB	Output is correct
43	Correct	3 ms	5076 KB	Output is correct
44	Correct	3 ms	5144 KB	Output is correct
45	Correct	3 ms	5108 KB	Output is correct
46	Correct	3 ms	5076 KB	Output is correct
47	Correct	3 ms	5076 KB	Output is correct
48	Correct	3 ms	5204 KB	Output is correct
49	Correct	3 ms	5224 KB	Output is correct
50	Correct	3 ms	5076 KB	Output is correct
51	Correct	3 ms	5076 KB	Output is correct
52	Correct	3 ms	5076 KB	Output is correct
53	Correct	3 ms	5076 KB	Output is correct
54	Correct	3 ms	5076 KB	Output is correct
55	Correct	4 ms	5076 KB	Output is correct
56	Correct	3 ms	5076 KB	Output is correct
57	Correct	4 ms	5204 KB	Output is correct
58	Correct	3 ms	5076 KB	Output is correct
59	Correct	5 ms	5024 KB	Output is correct
60	Correct	3 ms	5204 KB	Output is correct
61	Correct	4 ms	5076 KB	Output is correct
62	Correct	3 ms	5204 KB	Output is correct
63	Correct	3 ms	5076 KB	Output is correct

Subtask #3
53.0 / 53.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	4948 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	3 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	3 ms	4948 KB	Output is correct
7	Correct	3 ms	4948 KB	Output is correct
8	Correct	4 ms	5036 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	3 ms	4948 KB	Output is correct
12	Correct	3 ms	4948 KB	Output is correct
13	Correct	3 ms	4948 KB	Output is correct
14	Correct	3 ms	4932 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	3 ms	4948 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	2 ms	4948 KB	Output is correct
19	Correct	3 ms	4948 KB	Output is correct
20	Correct	3 ms	4924 KB	Output is correct
21	Correct	3 ms	4948 KB	Output is correct
22	Correct	3 ms	5076 KB	Output is correct
23	Correct	4 ms	5076 KB	Output is correct
24	Correct	3 ms	5076 KB	Output is correct
25	Correct	4 ms	5076 KB	Output is correct
26	Correct	3 ms	5076 KB	Output is correct
27	Correct	3 ms	5076 KB	Output is correct
28	Correct	3 ms	5076 KB	Output is correct
29	Correct	3 ms	5204 KB	Output is correct
30	Correct	3 ms	5204 KB	Output is correct
31	Correct	3 ms	5076 KB	Output is correct
32	Correct	4 ms	5076 KB	Output is correct
33	Correct	5 ms	5076 KB	Output is correct
34	Correct	4 ms	5076 KB	Output is correct
35	Correct	3 ms	5076 KB	Output is correct
36	Correct	3 ms	5076 KB	Output is correct
37	Correct	3 ms	5076 KB	Output is correct
38	Correct	3 ms	5076 KB	Output is correct
39	Correct	3 ms	5164 KB	Output is correct
40	Correct	3 ms	5076 KB	Output is correct
41	Correct	4 ms	5076 KB	Output is correct
42	Correct	3 ms	5076 KB	Output is correct
43	Correct	3 ms	5076 KB	Output is correct
44	Correct	3 ms	5144 KB	Output is correct
45	Correct	3 ms	5108 KB	Output is correct
46	Correct	3 ms	5076 KB	Output is correct
47	Correct	3 ms	5076 KB	Output is correct
48	Correct	3 ms	5204 KB	Output is correct
49	Correct	3 ms	5224 KB	Output is correct
50	Correct	3 ms	5076 KB	Output is correct
51	Correct	3 ms	5076 KB	Output is correct
52	Correct	3 ms	5076 KB	Output is correct
53	Correct	3 ms	5076 KB	Output is correct
54	Correct	3 ms	5076 KB	Output is correct
55	Correct	4 ms	5076 KB	Output is correct
56	Correct	3 ms	5076 KB	Output is correct
57	Correct	4 ms	5204 KB	Output is correct
58	Correct	3 ms	5076 KB	Output is correct
59	Correct	5 ms	5024 KB	Output is correct
60	Correct	3 ms	5204 KB	Output is correct
61	Correct	4 ms	5076 KB	Output is correct
62	Correct	3 ms	5204 KB	Output is correct
63	Correct	3 ms	5076 KB	Output is correct
64	Correct	89 ms	13924 KB	Output is correct
65	Correct	107 ms	13924 KB	Output is correct
66	Correct	129 ms	13884 KB	Output is correct
67	Correct	83 ms	13816 KB	Output is correct
68	Correct	92 ms	14000 KB	Output is correct
69	Correct	120 ms	13900 KB	Output is correct
70	Correct	98 ms	14028 KB	Output is correct
71	Correct	78 ms	13880 KB	Output is correct
72	Correct	82 ms	13140 KB	Output is correct
73	Correct	166 ms	29084 KB	Output is correct
74	Correct	120 ms	28924 KB	Output is correct
75	Correct	94 ms	13948 KB	Output is correct
76	Correct	80 ms	13688 KB	Output is correct
77	Correct	86 ms	13768 KB	Output is correct
78	Correct	79 ms	13772 KB	Output is correct
79	Correct	83 ms	13808 KB	Output is correct
80	Correct	89 ms	13812 KB	Output is correct
81	Correct	108 ms	14120 KB	Output is correct
82	Correct	92 ms	13992 KB	Output is correct
83	Correct	97 ms	20020 KB	Output is correct
84	Correct	96 ms	22608 KB	Output is correct
85	Correct	123 ms	22168 KB	Output is correct
86	Correct	109 ms	15548 KB	Output is correct
87	Correct	106 ms	14788 KB	Output is correct
88	Correct	83 ms	15180 KB	Output is correct
89	Correct	83 ms	15240 KB	Output is correct
90	Correct	83 ms	14988 KB	Output is correct
91	Correct	105 ms	15316 KB	Output is correct
92	Correct	91 ms	15624 KB	Output is correct
93	Correct	81 ms	18680 KB	Output is correct
94	Correct	111 ms	20740 KB	Output is correct
95	Correct	79 ms	19032 KB	Output is correct
96	Correct	79 ms	16824 KB	Output is correct
97	Correct	76 ms	15012 KB	Output is correct
98	Correct	83 ms	14380 KB	Output is correct
99	Correct	90 ms	14240 KB	Output is correct
100	Correct	93 ms	18032 KB	Output is correct
101	Correct	94 ms	15596 KB	Output is correct
102	Correct	111 ms	14684 KB	Output is correct
103	Correct	81 ms	14504 KB	Output is correct
104	Correct	50 ms	14588 KB	Output is correct
105	Correct	145 ms	24432 KB	Output is correct
106	Correct	72 ms	14528 KB	Output is correct
107	Correct	70 ms	13708 KB	Output is correct
108	Correct	134 ms	29124 KB	Output is correct
109	Correct	58 ms	13748 KB	Output is correct
110	Correct	150 ms	29544 KB	Output is correct
111	Correct	70 ms	13688 KB	Output is correct

답안 #763063

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