답안 #763024

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
763024	2023-06-22T02:30:35 Z	CDuong	Power Plant (JOI20_power)	C++17	100 / 100	114 ms	29440 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][2], 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][1];
		maxx = max(maxx, dp[u][1]);
	}
	dp[v][0] = max(cur_sum - vis[v], maxx + vis[v]);
	dp[v][1] = max(cur_sum - vis[v], (int)vis[v]);
	ans = max(ans, dp[v][0]);
}

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	4948 KB	Output is correct
2	Correct	2 ms	4948 KB	Output is correct
3	Correct	2 ms	5032 KB	Output is correct
4	Correct	2 ms	5032 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	2 ms	5028 KB	Output is correct
7	Correct	3 ms	5028 KB	Output is correct
8	Correct	2 ms	4948 KB	Output is correct
9	Correct	2 ms	4948 KB	Output is correct
10	Correct	2 ms	5028 KB	Output is correct
11	Correct	2 ms	4948 KB	Output is correct
12	Correct	2 ms	5012 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	3 ms	4948 KB	Output is correct
15	Correct	2 ms	4948 KB	Output is correct
16	Correct	2 ms	4948 KB	Output is correct
17	Correct	3 ms	5036 KB	Output is correct
18	Correct	3 ms	5032 KB	Output is correct
19	Correct	4 ms	5032 KB	Output is correct
20	Correct	2 ms	4948 KB	Output is correct
21	Correct	2 ms	5032 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	2 ms	4948 KB	Output is correct
3	Correct	2 ms	5032 KB	Output is correct
4	Correct	2 ms	5032 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	2 ms	5028 KB	Output is correct
7	Correct	3 ms	5028 KB	Output is correct
8	Correct	2 ms	4948 KB	Output is correct
9	Correct	2 ms	4948 KB	Output is correct
10	Correct	2 ms	5028 KB	Output is correct
11	Correct	2 ms	4948 KB	Output is correct
12	Correct	2 ms	5012 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	3 ms	4948 KB	Output is correct
15	Correct	2 ms	4948 KB	Output is correct
16	Correct	2 ms	4948 KB	Output is correct
17	Correct	3 ms	5036 KB	Output is correct
18	Correct	3 ms	5032 KB	Output is correct
19	Correct	4 ms	5032 KB	Output is correct
20	Correct	2 ms	4948 KB	Output is correct
21	Correct	2 ms	5032 KB	Output is correct
22	Correct	3 ms	5044 KB	Output is correct
23	Correct	3 ms	5076 KB	Output is correct
24	Correct	3 ms	5040 KB	Output is correct
25	Correct	3 ms	5048 KB	Output is correct
26	Correct	3 ms	5076 KB	Output is correct
27	Correct	3 ms	5040 KB	Output is correct
28	Correct	3 ms	5076 KB	Output is correct
29	Correct	3 ms	5168 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	4 ms	5076 KB	Output is correct
34	Correct	4 ms	5076 KB	Output is correct
35	Correct	3 ms	5136 KB	Output is correct
36	Correct	4 ms	5076 KB	Output is correct
37	Correct	4 ms	5076 KB	Output is correct
38	Correct	3 ms	5076 KB	Output is correct
39	Correct	4 ms	5168 KB	Output is correct
40	Correct	3 ms	5076 KB	Output is correct
41	Correct	3 ms	5172 KB	Output is correct
42	Correct	3 ms	5036 KB	Output is correct
43	Correct	3 ms	5076 KB	Output is correct
44	Correct	3 ms	5204 KB	Output is correct
45	Correct	3 ms	5044 KB	Output is correct
46	Correct	3 ms	5076 KB	Output is correct
47	Correct	3 ms	5044 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	5044 KB	Output is correct
52	Correct	3 ms	5076 KB	Output is correct
53	Correct	3 ms	5040 KB	Output is correct
54	Correct	3 ms	5200 KB	Output is correct
55	Correct	3 ms	5044 KB	Output is correct
56	Correct	5 ms	5072 KB	Output is correct
57	Correct	3 ms	5276 KB	Output is correct
58	Correct	3 ms	5048 KB	Output is correct
59	Correct	3 ms	5040 KB	Output is correct
60	Correct	3 ms	5204 KB	Output is correct
61	Correct	4 ms	5076 KB	Output is correct
62	Correct	4 ms	5168 KB	Output is correct
63	Correct	4 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	2 ms	4948 KB	Output is correct
3	Correct	2 ms	5032 KB	Output is correct
4	Correct	2 ms	5032 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	2 ms	5028 KB	Output is correct
7	Correct	3 ms	5028 KB	Output is correct
8	Correct	2 ms	4948 KB	Output is correct
9	Correct	2 ms	4948 KB	Output is correct
10	Correct	2 ms	5028 KB	Output is correct
11	Correct	2 ms	4948 KB	Output is correct
12	Correct	2 ms	5012 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	3 ms	4948 KB	Output is correct
15	Correct	2 ms	4948 KB	Output is correct
16	Correct	2 ms	4948 KB	Output is correct
17	Correct	3 ms	5036 KB	Output is correct
18	Correct	3 ms	5032 KB	Output is correct
19	Correct	4 ms	5032 KB	Output is correct
20	Correct	2 ms	4948 KB	Output is correct
21	Correct	2 ms	5032 KB	Output is correct
22	Correct	3 ms	5044 KB	Output is correct
23	Correct	3 ms	5076 KB	Output is correct
24	Correct	3 ms	5040 KB	Output is correct
25	Correct	3 ms	5048 KB	Output is correct
26	Correct	3 ms	5076 KB	Output is correct
27	Correct	3 ms	5040 KB	Output is correct
28	Correct	3 ms	5076 KB	Output is correct
29	Correct	3 ms	5168 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	4 ms	5076 KB	Output is correct
34	Correct	4 ms	5076 KB	Output is correct
35	Correct	3 ms	5136 KB	Output is correct
36	Correct	4 ms	5076 KB	Output is correct
37	Correct	4 ms	5076 KB	Output is correct
38	Correct	3 ms	5076 KB	Output is correct
39	Correct	4 ms	5168 KB	Output is correct
40	Correct	3 ms	5076 KB	Output is correct
41	Correct	3 ms	5172 KB	Output is correct
42	Correct	3 ms	5036 KB	Output is correct
43	Correct	3 ms	5076 KB	Output is correct
44	Correct	3 ms	5204 KB	Output is correct
45	Correct	3 ms	5044 KB	Output is correct
46	Correct	3 ms	5076 KB	Output is correct
47	Correct	3 ms	5044 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	5044 KB	Output is correct
52	Correct	3 ms	5076 KB	Output is correct
53	Correct	3 ms	5040 KB	Output is correct
54	Correct	3 ms	5200 KB	Output is correct
55	Correct	3 ms	5044 KB	Output is correct
56	Correct	5 ms	5072 KB	Output is correct
57	Correct	3 ms	5276 KB	Output is correct
58	Correct	3 ms	5048 KB	Output is correct
59	Correct	3 ms	5040 KB	Output is correct
60	Correct	3 ms	5204 KB	Output is correct
61	Correct	4 ms	5076 KB	Output is correct
62	Correct	4 ms	5168 KB	Output is correct
63	Correct	4 ms	5076 KB	Output is correct
64	Correct	93 ms	15808 KB	Output is correct
65	Correct	80 ms	15864 KB	Output is correct
66	Correct	93 ms	15780 KB	Output is correct
67	Correct	70 ms	15904 KB	Output is correct
68	Correct	70 ms	15844 KB	Output is correct
69	Correct	69 ms	15800 KB	Output is correct
70	Correct	89 ms	15768 KB	Output is correct
71	Correct	78 ms	15860 KB	Output is correct
72	Correct	84 ms	15860 KB	Output is correct
73	Correct	114 ms	28364 KB	Output is correct
74	Correct	86 ms	28300 KB	Output is correct
75	Correct	69 ms	15732 KB	Output is correct
76	Correct	66 ms	15700 KB	Output is correct
77	Correct	97 ms	15696 KB	Output is correct
78	Correct	78 ms	15740 KB	Output is correct
79	Correct	85 ms	15744 KB	Output is correct
80	Correct	109 ms	15620 KB	Output is correct
81	Correct	74 ms	16112 KB	Output is correct
82	Correct	62 ms	15960 KB	Output is correct
83	Correct	95 ms	20836 KB	Output is correct
84	Correct	82 ms	22988 KB	Output is correct
85	Correct	86 ms	22904 KB	Output is correct
86	Correct	89 ms	17164 KB	Output is correct
87	Correct	70 ms	16616 KB	Output is correct
88	Correct	88 ms	16988 KB	Output is correct
89	Correct	107 ms	17052 KB	Output is correct
90	Correct	79 ms	16884 KB	Output is correct
91	Correct	67 ms	17068 KB	Output is correct
92	Correct	108 ms	17436 KB	Output is correct
93	Correct	76 ms	19752 KB	Output is correct
94	Correct	69 ms	21472 KB	Output is correct
95	Correct	71 ms	20236 KB	Output is correct
96	Correct	83 ms	18380 KB	Output is correct
97	Correct	62 ms	16892 KB	Output is correct
98	Correct	92 ms	16320 KB	Output is correct
99	Correct	70 ms	16136 KB	Output is correct
100	Correct	83 ms	19300 KB	Output is correct
101	Correct	67 ms	17368 KB	Output is correct
102	Correct	67 ms	16488 KB	Output is correct
103	Correct	88 ms	16420 KB	Output is correct
104	Correct	46 ms	16572 KB	Output is correct
105	Correct	78 ms	25256 KB	Output is correct
106	Correct	45 ms	16340 KB	Output is correct
107	Correct	47 ms	16456 KB	Output is correct
108	Correct	85 ms	29172 KB	Output is correct
109	Correct	54 ms	16636 KB	Output is correct
110	Correct	83 ms	29440 KB	Output is correct
111	Correct	64 ms	15692 KB	Output is correct

답안 #763024

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