답안 #763069

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
763069	2023-06-22T03:06:09 Z	huutuan	Power Plant (JOI20_power)	C++14	100 / 100	145 ms	34580 KB

power

#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx2,fma,bmi,bmi2,sse4.2,popcnt,lzcnt")

 
#include <bits/stdc++.h>
#define taskname ""
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define ll long long
#define ld long double
#define pb push_back
#define ff first
#define ss second
#define pii pair<int, int>
#define vi vector<int>
#define vii vector<pii>
using namespace std;
 
const int mxN = 2e5 + 5;
const int mod = 1e9 + 7;
const ll oo = 1e18;
 
int n;
vi G[mxN];
bool vis[mxN];
int dp[mxN], ans;
 
void dfs(int v, int p) {
	int maxx = 0, cur_sum = 0;
	for(int u : G[v]) {
		if(u == p) continue;
		dfs(u, v);
		cur_sum += dp[u];
		maxx = max(maxx, dp[u]);
	}
	dp[v] = max(cur_sum - vis[v], (int)vis[v]);
	ans = max({ans, cur_sum - vis[v], maxx + vis[v]});
}
 
void solve() {
	cin >> n;
	for(int i = 1; i < n; ++i) {
		int u, v; cin >> u >> v;
		G[u].emplace_back(v);
		G[v].emplace_back(u);
	}
	for(int i = 1; i <= n; ++i) {
		char c; cin >> c;
		vis[i] = (c == '1');
	}
	dfs(1, 0);
	cout << ans << endl;
}
 
signed main() {
 
#ifndef CDuongg
    if(fopen(taskname".inp", "r"))
        assert(freopen(taskname".inp", "r", stdin)), assert(freopen(taskname".out", "w", stdout));
#else
    freopen("bai3.inp", "r", stdin);
    freopen("bai3.out", "w", stdout);
    auto start = chrono::high_resolution_clock::now();
#endif
 
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
	int t = 1; //cin >> t;
	while(t--) solve();
 
#ifdef CDuongg
	auto end = chrono::high_resolution_clock::now();
	cout << "\n"; for(int i = 1; i <= 100; ++i) cout << '=';
	cout << "\nExecution time: " << chrono::duration_cast<chrono::milliseconds> (end - start).count() << "[ms]" << endl;
#endif
 
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	4952 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	4 ms	5028 KB	Output is correct
5	Correct	3 ms	5028 KB	Output is correct
6	Correct	4 ms	4948 KB	Output is correct
7	Correct	4 ms	4948 KB	Output is correct
8	Correct	3 ms	4948 KB	Output is correct
9	Correct	4 ms	5024 KB	Output is correct
10	Correct	3 ms	5028 KB	Output is correct
11	Correct	4 ms	5032 KB	Output is correct
12	Correct	3 ms	5024 KB	Output is correct
13	Correct	3 ms	4948 KB	Output is correct
14	Correct	3 ms	5020 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	3 ms	5020 KB	Output is correct
17	Correct	3 ms	4968 KB	Output is correct
18	Correct	3 ms	5024 KB	Output is correct
19	Correct	3 ms	5020 KB	Output is correct
20	Correct	3 ms	5028 KB	Output is correct
21	Correct	3 ms	5020 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	4952 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	4 ms	5028 KB	Output is correct
5	Correct	3 ms	5028 KB	Output is correct
6	Correct	4 ms	4948 KB	Output is correct
7	Correct	4 ms	4948 KB	Output is correct
8	Correct	3 ms	4948 KB	Output is correct
9	Correct	4 ms	5024 KB	Output is correct
10	Correct	3 ms	5028 KB	Output is correct
11	Correct	4 ms	5032 KB	Output is correct
12	Correct	3 ms	5024 KB	Output is correct
13	Correct	3 ms	4948 KB	Output is correct
14	Correct	3 ms	5020 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	3 ms	5020 KB	Output is correct
17	Correct	3 ms	4968 KB	Output is correct
18	Correct	3 ms	5024 KB	Output is correct
19	Correct	3 ms	5020 KB	Output is correct
20	Correct	3 ms	5028 KB	Output is correct
21	Correct	3 ms	5020 KB	Output is correct
22	Correct	4 ms	5076 KB	Output is correct
23	Correct	4 ms	5076 KB	Output is correct
24	Correct	3 ms	5036 KB	Output is correct
25	Correct	4 ms	5032 KB	Output is correct
26	Correct	4 ms	5036 KB	Output is correct
27	Correct	4 ms	5036 KB	Output is correct
28	Correct	4 ms	5076 KB	Output is correct
29	Correct	4 ms	5216 KB	Output is correct
30	Correct	4 ms	5184 KB	Output is correct
31	Correct	3 ms	5076 KB	Output is correct
32	Correct	3 ms	5076 KB	Output is correct
33	Correct	4 ms	5036 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	5036 KB	Output is correct
38	Correct	3 ms	5076 KB	Output is correct
39	Correct	3 ms	5204 KB	Output is correct
40	Correct	5 ms	5076 KB	Output is correct
41	Correct	4 ms	5096 KB	Output is correct
42	Correct	3 ms	5076 KB	Output is correct
43	Correct	4 ms	5076 KB	Output is correct
44	Correct	3 ms	5076 KB	Output is correct
45	Correct	3 ms	5164 KB	Output is correct
46	Correct	3 ms	5076 KB	Output is correct
47	Correct	3 ms	5076 KB	Output is correct
48	Correct	4 ms	5160 KB	Output is correct
49	Correct	3 ms	5136 KB	Output is correct
50	Correct	3 ms	5076 KB	Output is correct
51	Correct	5 ms	5076 KB	Output is correct
52	Correct	3 ms	5032 KB	Output is correct
53	Correct	3 ms	5164 KB	Output is correct
54	Correct	5 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	5332 KB	Output is correct
58	Correct	3 ms	5032 KB	Output is correct
59	Correct	3 ms	5120 KB	Output is correct
60	Correct	5 ms	5212 KB	Output is correct
61	Correct	3 ms	5040 KB	Output is correct
62	Correct	4 ms	5204 KB	Output is correct
63	Correct	4 ms	5036 KB	Output is correct

Subtask #3
53.0 / 53.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	4952 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	4 ms	5028 KB	Output is correct
5	Correct	3 ms	5028 KB	Output is correct
6	Correct	4 ms	4948 KB	Output is correct
7	Correct	4 ms	4948 KB	Output is correct
8	Correct	3 ms	4948 KB	Output is correct
9	Correct	4 ms	5024 KB	Output is correct
10	Correct	3 ms	5028 KB	Output is correct
11	Correct	4 ms	5032 KB	Output is correct
12	Correct	3 ms	5024 KB	Output is correct
13	Correct	3 ms	4948 KB	Output is correct
14	Correct	3 ms	5020 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	3 ms	5020 KB	Output is correct
17	Correct	3 ms	4968 KB	Output is correct
18	Correct	3 ms	5024 KB	Output is correct
19	Correct	3 ms	5020 KB	Output is correct
20	Correct	3 ms	5028 KB	Output is correct
21	Correct	3 ms	5020 KB	Output is correct
22	Correct	4 ms	5076 KB	Output is correct
23	Correct	4 ms	5076 KB	Output is correct
24	Correct	3 ms	5036 KB	Output is correct
25	Correct	4 ms	5032 KB	Output is correct
26	Correct	4 ms	5036 KB	Output is correct
27	Correct	4 ms	5036 KB	Output is correct
28	Correct	4 ms	5076 KB	Output is correct
29	Correct	4 ms	5216 KB	Output is correct
30	Correct	4 ms	5184 KB	Output is correct
31	Correct	3 ms	5076 KB	Output is correct
32	Correct	3 ms	5076 KB	Output is correct
33	Correct	4 ms	5036 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	5036 KB	Output is correct
38	Correct	3 ms	5076 KB	Output is correct
39	Correct	3 ms	5204 KB	Output is correct
40	Correct	5 ms	5076 KB	Output is correct
41	Correct	4 ms	5096 KB	Output is correct
42	Correct	3 ms	5076 KB	Output is correct
43	Correct	4 ms	5076 KB	Output is correct
44	Correct	3 ms	5076 KB	Output is correct
45	Correct	3 ms	5164 KB	Output is correct
46	Correct	3 ms	5076 KB	Output is correct
47	Correct	3 ms	5076 KB	Output is correct
48	Correct	4 ms	5160 KB	Output is correct
49	Correct	3 ms	5136 KB	Output is correct
50	Correct	3 ms	5076 KB	Output is correct
51	Correct	5 ms	5076 KB	Output is correct
52	Correct	3 ms	5032 KB	Output is correct
53	Correct	3 ms	5164 KB	Output is correct
54	Correct	5 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	5332 KB	Output is correct
58	Correct	3 ms	5032 KB	Output is correct
59	Correct	3 ms	5120 KB	Output is correct
60	Correct	5 ms	5212 KB	Output is correct
61	Correct	3 ms	5040 KB	Output is correct
62	Correct	4 ms	5204 KB	Output is correct
63	Correct	4 ms	5036 KB	Output is correct
64	Correct	119 ms	12612 KB	Output is correct
65	Correct	85 ms	12620 KB	Output is correct
66	Correct	119 ms	12608 KB	Output is correct
67	Correct	107 ms	12628 KB	Output is correct
68	Correct	86 ms	12540 KB	Output is correct
69	Correct	85 ms	12628 KB	Output is correct
70	Correct	122 ms	12616 KB	Output is correct
71	Correct	110 ms	12596 KB	Output is correct
72	Correct	86 ms	12580 KB	Output is correct
73	Correct	142 ms	32844 KB	Output is correct
74	Correct	102 ms	32764 KB	Output is correct
75	Correct	90 ms	12580 KB	Output is correct
76	Correct	96 ms	12392 KB	Output is correct
77	Correct	94 ms	12416 KB	Output is correct
78	Correct	74 ms	12440 KB	Output is correct
79	Correct	95 ms	12500 KB	Output is correct
80	Correct	68 ms	12456 KB	Output is correct
81	Correct	61 ms	12888 KB	Output is correct
82	Correct	90 ms	12672 KB	Output is correct
83	Correct	145 ms	20824 KB	Output is correct
84	Correct	87 ms	24200 KB	Output is correct
85	Correct	94 ms	23712 KB	Output is correct
86	Correct	83 ms	14728 KB	Output is correct
87	Correct	80 ms	13832 KB	Output is correct
88	Correct	107 ms	14156 KB	Output is correct
89	Correct	93 ms	14260 KB	Output is correct
90	Correct	68 ms	13920 KB	Output is correct
91	Correct	87 ms	14168 KB	Output is correct
92	Correct	93 ms	14724 KB	Output is correct
93	Correct	84 ms	18904 KB	Output is correct
94	Correct	85 ms	21592 KB	Output is correct
95	Correct	74 ms	19416 KB	Output is correct
96	Correct	92 ms	16492 KB	Output is correct
97	Correct	65 ms	14036 KB	Output is correct
98	Correct	73 ms	13128 KB	Output is correct
99	Correct	95 ms	12856 KB	Output is correct
100	Correct	77 ms	17928 KB	Output is correct
101	Correct	81 ms	14816 KB	Output is correct
102	Correct	76 ms	13568 KB	Output is correct
103	Correct	71 ms	13132 KB	Output is correct
104	Correct	47 ms	13248 KB	Output is correct
105	Correct	127 ms	27704 KB	Output is correct
106	Correct	46 ms	13248 KB	Output is correct
107	Correct	53 ms	13288 KB	Output is correct
108	Correct	93 ms	33956 KB	Output is correct
109	Correct	64 ms	13260 KB	Output is correct
110	Correct	116 ms	34580 KB	Output is correct
111	Correct	80 ms	12436 KB	Output is correct

답안 #763069

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