답안 #412441

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
412441	2021-05-26T22:06:54 Z	CSQ31	Power Plant (JOI20_power)	C++14	100 / 100	183 ms	29652 KB

power

#pragma GCC optimize("Ofast") 
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define sz(a) (int)(a.size())
#define all(a) a.begin(),a.end()
#define lb lower_bound
#define ub upper_bound
#define owo ios_base::sync_with_stdio(0);cin.tie(0);
#define MOD (ll)(1e8)
#define INF (ll)(1e18)
#define debug(...) fprintf(stderr, __VA_ARGS__),fflush(stderr)
#define time__(d) for(long blockTime = 0; (blockTime == 0 ? (blockTime=clock()) != 0 : false);\
debug("%s time : %.4fs\n", d, (double)(clock() - blockTime) / CLOCKS_PER_SEC))
typedef long long int ll;
typedef long double ld;
typedef pair<ll,ll> PII;
typedef pair<int,int> pii;
typedef vector<vector<int>> vii;
typedef vector<vector<ll>> VII;
ll gcd(ll a,ll b){if(!b)return a;else return gcd(b,a%b);}
const int MAXN = 2e5+5;
ll ans = 0;
vector<ll>dp(MAXN);
vii adj(MAXN);
string s;
void dfs(int v,int u){
	dp[v] = (s[v]=='1');
	ll mx = 0,sum =0;
	for(int x:adj[v]){
		if(x == u)continue;
		dfs(x,v);
		mx = max(mx,dp[x]);
		sum+=dp[x];
	}
	if(s[v] == '1')ans = max(ans,mx+1);
	dp[v] = max(dp[v],sum-dp[v]);
	ans = max(ans,dp[v]);
}
int main()
{
	owo
	int n;
	cin>>n;
	for(int i=1;i<n;i++){
		int v,u;
		cin>>v>>u;
		v--;
		u--;
		adj[v].pb(u);
		adj[u].pb(v);
	}
	cin>>s;
	dfs(0,-1);
	cout<<ans;
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	6476 KB	Output is correct
2	Correct	4 ms	6476 KB	Output is correct
3	Correct	4 ms	6476 KB	Output is correct
4	Correct	4 ms	6584 KB	Output is correct
5	Correct	4 ms	6592 KB	Output is correct
6	Correct	4 ms	6476 KB	Output is correct
7	Correct	4 ms	6588 KB	Output is correct
8	Correct	5 ms	6584 KB	Output is correct
9	Correct	4 ms	6588 KB	Output is correct
10	Correct	4 ms	6560 KB	Output is correct
11	Correct	4 ms	6476 KB	Output is correct
12	Correct	4 ms	6476 KB	Output is correct
13	Correct	4 ms	6476 KB	Output is correct
14	Correct	4 ms	6476 KB	Output is correct
15	Correct	4 ms	6476 KB	Output is correct
16	Correct	4 ms	6476 KB	Output is correct
17	Correct	4 ms	6476 KB	Output is correct
18	Correct	4 ms	6592 KB	Output is correct
19	Correct	4 ms	6540 KB	Output is correct
20	Correct	4 ms	6476 KB	Output is correct
21	Correct	4 ms	6476 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	6476 KB	Output is correct
2	Correct	4 ms	6476 KB	Output is correct
3	Correct	4 ms	6476 KB	Output is correct
4	Correct	4 ms	6584 KB	Output is correct
5	Correct	4 ms	6592 KB	Output is correct
6	Correct	4 ms	6476 KB	Output is correct
7	Correct	4 ms	6588 KB	Output is correct
8	Correct	5 ms	6584 KB	Output is correct
9	Correct	4 ms	6588 KB	Output is correct
10	Correct	4 ms	6560 KB	Output is correct
11	Correct	4 ms	6476 KB	Output is correct
12	Correct	4 ms	6476 KB	Output is correct
13	Correct	4 ms	6476 KB	Output is correct
14	Correct	4 ms	6476 KB	Output is correct
15	Correct	4 ms	6476 KB	Output is correct
16	Correct	4 ms	6476 KB	Output is correct
17	Correct	4 ms	6476 KB	Output is correct
18	Correct	4 ms	6592 KB	Output is correct
19	Correct	4 ms	6540 KB	Output is correct
20	Correct	4 ms	6476 KB	Output is correct
21	Correct	4 ms	6476 KB	Output is correct
22	Correct	5 ms	6604 KB	Output is correct
23	Correct	5 ms	6604 KB	Output is correct
24	Correct	5 ms	6604 KB	Output is correct
25	Correct	5 ms	6600 KB	Output is correct
26	Correct	5 ms	6604 KB	Output is correct
27	Correct	5 ms	6604 KB	Output is correct
28	Correct	5 ms	6604 KB	Output is correct
29	Correct	5 ms	6732 KB	Output is correct
30	Correct	5 ms	6732 KB	Output is correct
31	Correct	5 ms	6604 KB	Output is correct
32	Correct	5 ms	6604 KB	Output is correct
33	Correct	5 ms	6604 KB	Output is correct
34	Correct	5 ms	6604 KB	Output is correct
35	Correct	5 ms	6604 KB	Output is correct
36	Correct	5 ms	6596 KB	Output is correct
37	Correct	5 ms	6604 KB	Output is correct
38	Correct	5 ms	6604 KB	Output is correct
39	Correct	5 ms	6732 KB	Output is correct
40	Correct	6 ms	6604 KB	Output is correct
41	Correct	5 ms	6796 KB	Output is correct
42	Correct	5 ms	6604 KB	Output is correct
43	Correct	5 ms	6596 KB	Output is correct
44	Correct	5 ms	6604 KB	Output is correct
45	Correct	5 ms	6604 KB	Output is correct
46	Correct	5 ms	6604 KB	Output is correct
47	Correct	5 ms	6596 KB	Output is correct
48	Correct	5 ms	6732 KB	Output is correct
49	Correct	5 ms	6700 KB	Output is correct
50	Correct	5 ms	6604 KB	Output is correct
51	Correct	5 ms	6604 KB	Output is correct
52	Correct	5 ms	6648 KB	Output is correct
53	Correct	5 ms	6600 KB	Output is correct
54	Correct	5 ms	6680 KB	Output is correct
55	Correct	5 ms	6604 KB	Output is correct
56	Correct	5 ms	6604 KB	Output is correct
57	Correct	5 ms	6728 KB	Output is correct
58	Correct	5 ms	6604 KB	Output is correct
59	Correct	5 ms	6604 KB	Output is correct
60	Correct	5 ms	6732 KB	Output is correct
61	Correct	5 ms	6604 KB	Output is correct
62	Correct	5 ms	6732 KB	Output is correct
63	Correct	5 ms	6604 KB	Output is correct

Subtask #3
53.0 / 53.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	6476 KB	Output is correct
2	Correct	4 ms	6476 KB	Output is correct
3	Correct	4 ms	6476 KB	Output is correct
4	Correct	4 ms	6584 KB	Output is correct
5	Correct	4 ms	6592 KB	Output is correct
6	Correct	4 ms	6476 KB	Output is correct
7	Correct	4 ms	6588 KB	Output is correct
8	Correct	5 ms	6584 KB	Output is correct
9	Correct	4 ms	6588 KB	Output is correct
10	Correct	4 ms	6560 KB	Output is correct
11	Correct	4 ms	6476 KB	Output is correct
12	Correct	4 ms	6476 KB	Output is correct
13	Correct	4 ms	6476 KB	Output is correct
14	Correct	4 ms	6476 KB	Output is correct
15	Correct	4 ms	6476 KB	Output is correct
16	Correct	4 ms	6476 KB	Output is correct
17	Correct	4 ms	6476 KB	Output is correct
18	Correct	4 ms	6592 KB	Output is correct
19	Correct	4 ms	6540 KB	Output is correct
20	Correct	4 ms	6476 KB	Output is correct
21	Correct	4 ms	6476 KB	Output is correct
22	Correct	5 ms	6604 KB	Output is correct
23	Correct	5 ms	6604 KB	Output is correct
24	Correct	5 ms	6604 KB	Output is correct
25	Correct	5 ms	6600 KB	Output is correct
26	Correct	5 ms	6604 KB	Output is correct
27	Correct	5 ms	6604 KB	Output is correct
28	Correct	5 ms	6604 KB	Output is correct
29	Correct	5 ms	6732 KB	Output is correct
30	Correct	5 ms	6732 KB	Output is correct
31	Correct	5 ms	6604 KB	Output is correct
32	Correct	5 ms	6604 KB	Output is correct
33	Correct	5 ms	6604 KB	Output is correct
34	Correct	5 ms	6604 KB	Output is correct
35	Correct	5 ms	6604 KB	Output is correct
36	Correct	5 ms	6596 KB	Output is correct
37	Correct	5 ms	6604 KB	Output is correct
38	Correct	5 ms	6604 KB	Output is correct
39	Correct	5 ms	6732 KB	Output is correct
40	Correct	6 ms	6604 KB	Output is correct
41	Correct	5 ms	6796 KB	Output is correct
42	Correct	5 ms	6604 KB	Output is correct
43	Correct	5 ms	6596 KB	Output is correct
44	Correct	5 ms	6604 KB	Output is correct
45	Correct	5 ms	6604 KB	Output is correct
46	Correct	5 ms	6604 KB	Output is correct
47	Correct	5 ms	6596 KB	Output is correct
48	Correct	5 ms	6732 KB	Output is correct
49	Correct	5 ms	6700 KB	Output is correct
50	Correct	5 ms	6604 KB	Output is correct
51	Correct	5 ms	6604 KB	Output is correct
52	Correct	5 ms	6648 KB	Output is correct
53	Correct	5 ms	6600 KB	Output is correct
54	Correct	5 ms	6680 KB	Output is correct
55	Correct	5 ms	6604 KB	Output is correct
56	Correct	5 ms	6604 KB	Output is correct
57	Correct	5 ms	6728 KB	Output is correct
58	Correct	5 ms	6604 KB	Output is correct
59	Correct	5 ms	6604 KB	Output is correct
60	Correct	5 ms	6732 KB	Output is correct
61	Correct	5 ms	6604 KB	Output is correct
62	Correct	5 ms	6732 KB	Output is correct
63	Correct	5 ms	6604 KB	Output is correct
64	Correct	146 ms	16076 KB	Output is correct
65	Correct	146 ms	15988 KB	Output is correct
66	Correct	148 ms	16120 KB	Output is correct
67	Correct	162 ms	16080 KB	Output is correct
68	Correct	146 ms	16108 KB	Output is correct
69	Correct	141 ms	15984 KB	Output is correct
70	Correct	167 ms	16056 KB	Output is correct
71	Correct	156 ms	15976 KB	Output is correct
72	Correct	147 ms	16036 KB	Output is correct
73	Correct	162 ms	28556 KB	Output is correct
74	Correct	182 ms	28424 KB	Output is correct
75	Correct	142 ms	15912 KB	Output is correct
76	Correct	152 ms	15992 KB	Output is correct
77	Correct	155 ms	16012 KB	Output is correct
78	Correct	157 ms	16052 KB	Output is correct
79	Correct	155 ms	15976 KB	Output is correct
80	Correct	183 ms	16012 KB	Output is correct
81	Correct	130 ms	16224 KB	Output is correct
82	Correct	142 ms	16116 KB	Output is correct
83	Correct	162 ms	20996 KB	Output is correct
84	Correct	156 ms	23188 KB	Output is correct
85	Correct	172 ms	22808 KB	Output is correct
86	Correct	154 ms	17380 KB	Output is correct
87	Correct	147 ms	16676 KB	Output is correct
88	Correct	155 ms	17176 KB	Output is correct
89	Correct	148 ms	17212 KB	Output is correct
90	Correct	160 ms	17040 KB	Output is correct
91	Correct	153 ms	17124 KB	Output is correct
92	Correct	154 ms	17648 KB	Output is correct
93	Correct	148 ms	19800 KB	Output is correct
94	Correct	146 ms	21668 KB	Output is correct
95	Correct	130 ms	20312 KB	Output is correct
96	Correct	145 ms	18476 KB	Output is correct
97	Correct	138 ms	16952 KB	Output is correct
98	Correct	165 ms	16460 KB	Output is correct
99	Correct	145 ms	16344 KB	Output is correct
100	Correct	145 ms	19440 KB	Output is correct
101	Correct	167 ms	17512 KB	Output is correct
102	Correct	129 ms	16708 KB	Output is correct
103	Correct	134 ms	16560 KB	Output is correct
104	Correct	101 ms	16768 KB	Output is correct
105	Correct	172 ms	25400 KB	Output is correct
106	Correct	86 ms	16700 KB	Output is correct
107	Correct	84 ms	16704 KB	Output is correct
108	Correct	171 ms	29340 KB	Output is correct
109	Correct	116 ms	16792 KB	Output is correct
110	Correct	170 ms	29652 KB	Output is correct
111	Correct	135 ms	15880 KB	Output is correct

답안 #412441

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