답안 #626783

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
626783	2022-08-11T18:55:54 Z	codr0	Power Plant (JOI20_power)	C++14	100 / 100	131 ms	30488 KB

power

// Code by Parsa Eslami

#include <bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>

#define FOR(i,a,b) for(int i=a;i<=b;i++)
#define FORR(i,a,b) for(int i=a;i>=b;i--)
#define maxm(a,b) a=max(a,b)
#define minm(a,b) a=min(a,b)
#define all(x) x.begin(),x.end()
#define SZ(x) ((int)x.size())
#define bit(i,j) ((j>>i)&1)
#define pb push_back
#define lc 2*id
#define rc 2*id+1
#define dmid int mid=(r+l)/2
#define err(x) cerr<#x<<" : "<<x<<'\n'

using namespace std;
const int N=2e5+4;
vector<int> adj[N];
int gen[N];
int dp[N][2];

	int in(){
		int x; cin>>x; return x;
	}

	void dfs(int v,int p){
		int sg1=0,mx1=0,mx0=0;
		for(int u:adj[v]) if(u!=p){
			dfs(u,v);
			sg1+=dp[u][1];
			maxm(mx1,dp[u][1]);
			maxm(mx0,dp[u][0]);
		}
		maxm(dp[v][1],gen[v]);
		maxm(dp[v][1],sg1-gen[v]);
		maxm(dp[v][0],mx0);
		maxm(dp[v][0],mx1+gen[v]);
		maxm(dp[v][0],sg1-gen[v]);
	}

	int32_t main(){
	iostream::sync_with_stdio(0); cin.tie(0);

	int n=in();
	FOR(i,1,n-1){
		int u=in(),v=in();
		adj[u].pb(v);
		adj[v].pb(u);
	}
	string s; cin>>s;
	FOR(i,0,n-1) gen[i+1]=s[i]-'0';
	dfs(1,1);
	cout<<dp[1][0]<<'\n';

	return 0;
	}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4948 KB	Output is correct
2	Correct	3 ms	5076 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	2 ms	4948 KB	Output is correct
5	Correct	2 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	3 ms	4948 KB	Output is correct
8	Correct	3 ms	4948 KB	Output is correct
9	Correct	2 ms	4948 KB	Output is correct
10	Correct	2 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	4948 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	3 ms	5036 KB	Output is correct
19	Correct	4 ms	4948 KB	Output is correct
20	Correct	2 ms	4948 KB	Output is correct
21	Correct	3 ms	4936 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4948 KB	Output is correct
2	Correct	3 ms	5076 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	2 ms	4948 KB	Output is correct
5	Correct	2 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	3 ms	4948 KB	Output is correct
8	Correct	3 ms	4948 KB	Output is correct
9	Correct	2 ms	4948 KB	Output is correct
10	Correct	2 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	4948 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	3 ms	5036 KB	Output is correct
19	Correct	4 ms	4948 KB	Output is correct
20	Correct	2 ms	4948 KB	Output is correct
21	Correct	3 ms	4936 KB	Output is correct
22	Correct	3 ms	5076 KB	Output is correct
23	Correct	3 ms	5076 KB	Output is correct
24	Correct	3 ms	5076 KB	Output is correct
25	Correct	3 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	3 ms	5076 KB	Output is correct
33	Correct	3 ms	5076 KB	Output is correct
34	Correct	3 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	5076 KB	Output is correct
40	Correct	4 ms	5072 KB	Output is correct
41	Correct	3 ms	5076 KB	Output is correct
42	Correct	3 ms	5204 KB	Output is correct
43	Correct	3 ms	5028 KB	Output is correct
44	Correct	3 ms	5076 KB	Output is correct
45	Correct	3 ms	5076 KB	Output is correct
46	Correct	4 ms	5204 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	5204 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	3 ms	5076 KB	Output is correct
56	Correct	3 ms	5076 KB	Output is correct
57	Correct	3 ms	5204 KB	Output is correct
58	Correct	3 ms	5076 KB	Output is correct
59	Correct	3 ms	5076 KB	Output is correct
60	Correct	3 ms	5204 KB	Output is correct
61	Correct	3 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	2 ms	4948 KB	Output is correct
2	Correct	3 ms	5076 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	2 ms	4948 KB	Output is correct
5	Correct	2 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	3 ms	4948 KB	Output is correct
8	Correct	3 ms	4948 KB	Output is correct
9	Correct	2 ms	4948 KB	Output is correct
10	Correct	2 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	4948 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	3 ms	5036 KB	Output is correct
19	Correct	4 ms	4948 KB	Output is correct
20	Correct	2 ms	4948 KB	Output is correct
21	Correct	3 ms	4936 KB	Output is correct
22	Correct	3 ms	5076 KB	Output is correct
23	Correct	3 ms	5076 KB	Output is correct
24	Correct	3 ms	5076 KB	Output is correct
25	Correct	3 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	3 ms	5076 KB	Output is correct
33	Correct	3 ms	5076 KB	Output is correct
34	Correct	3 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	5076 KB	Output is correct
40	Correct	4 ms	5072 KB	Output is correct
41	Correct	3 ms	5076 KB	Output is correct
42	Correct	3 ms	5204 KB	Output is correct
43	Correct	3 ms	5028 KB	Output is correct
44	Correct	3 ms	5076 KB	Output is correct
45	Correct	3 ms	5076 KB	Output is correct
46	Correct	4 ms	5204 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	5204 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	3 ms	5076 KB	Output is correct
56	Correct	3 ms	5076 KB	Output is correct
57	Correct	3 ms	5204 KB	Output is correct
58	Correct	3 ms	5076 KB	Output is correct
59	Correct	3 ms	5076 KB	Output is correct
60	Correct	3 ms	5204 KB	Output is correct
61	Correct	3 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	115 ms	14004 KB	Output is correct
65	Correct	113 ms	14028 KB	Output is correct
66	Correct	107 ms	14052 KB	Output is correct
67	Correct	109 ms	14004 KB	Output is correct
68	Correct	115 ms	14084 KB	Output is correct
69	Correct	115 ms	13976 KB	Output is correct
70	Correct	109 ms	14040 KB	Output is correct
71	Correct	108 ms	13964 KB	Output is correct
72	Correct	109 ms	14040 KB	Output is correct
73	Correct	129 ms	29216 KB	Output is correct
74	Correct	131 ms	29028 KB	Output is correct
75	Correct	109 ms	13896 KB	Output is correct
76	Correct	125 ms	13828 KB	Output is correct
77	Correct	120 ms	13872 KB	Output is correct
78	Correct	106 ms	13888 KB	Output is correct
79	Correct	109 ms	13840 KB	Output is correct
80	Correct	112 ms	13852 KB	Output is correct
81	Correct	88 ms	14428 KB	Output is correct
82	Correct	100 ms	14060 KB	Output is correct
83	Correct	117 ms	20076 KB	Output is correct
84	Correct	120 ms	22684 KB	Output is correct
85	Correct	116 ms	22308 KB	Output is correct
86	Correct	117 ms	15648 KB	Output is correct
87	Correct	113 ms	14952 KB	Output is correct
88	Correct	104 ms	15400 KB	Output is correct
89	Correct	106 ms	15416 KB	Output is correct
90	Correct	107 ms	15128 KB	Output is correct
91	Correct	104 ms	15392 KB	Output is correct
92	Correct	105 ms	15808 KB	Output is correct
93	Correct	100 ms	18844 KB	Output is correct
94	Correct	103 ms	20976 KB	Output is correct
95	Correct	97 ms	19224 KB	Output is correct
96	Correct	103 ms	16960 KB	Output is correct
97	Correct	103 ms	15184 KB	Output is correct
98	Correct	109 ms	14516 KB	Output is correct
99	Correct	103 ms	14404 KB	Output is correct
100	Correct	100 ms	18168 KB	Output is correct
101	Correct	105 ms	15704 KB	Output is correct
102	Correct	98 ms	14816 KB	Output is correct
103	Correct	115 ms	14536 KB	Output is correct
104	Correct	62 ms	14688 KB	Output is correct
105	Correct	121 ms	25352 KB	Output is correct
106	Correct	61 ms	14880 KB	Output is correct
107	Correct	61 ms	14788 KB	Output is correct
108	Correct	129 ms	29996 KB	Output is correct
109	Correct	66 ms	14800 KB	Output is correct
110	Correct	128 ms	30488 KB	Output is correct
111	Correct	110 ms	13884 KB	Output is correct

답안 #626783

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