답안 #763025

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
763025	2023-06-22T02:30:56 Z	vjudge1	Power Plant (JOI20_power)	C++17	100 / 100	128 ms	26824 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	3 ms	4948 KB	Output is correct
3	Correct	2 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	2 ms	4948 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	4948 KB	Output is correct
11	Correct	3 ms	4948 KB	Output is correct
12	Correct	2 ms	5020 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	2 ms	4980 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	4948 KB	Output is correct
18	Correct	2 ms	4948 KB	Output is correct
19	Correct	2 ms	4960 KB	Output is correct
20	Correct	2 ms	4948 KB	Output is correct
21	Correct	2 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	2 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	2 ms	4948 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	4948 KB	Output is correct
11	Correct	3 ms	4948 KB	Output is correct
12	Correct	2 ms	5020 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	2 ms	4980 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	4948 KB	Output is correct
18	Correct	2 ms	4948 KB	Output is correct
19	Correct	2 ms	4960 KB	Output is correct
20	Correct	2 ms	4948 KB	Output is correct
21	Correct	2 ms	4948 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	5100 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	5056 KB	Output is correct
37	Correct	3 ms	5076 KB	Output is correct
38	Correct	3 ms	5076 KB	Output is correct
39	Correct	4 ms	5076 KB	Output is correct
40	Correct	3 ms	5076 KB	Output is correct
41	Correct	3 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	5076 KB	Output is correct
45	Correct	2 ms	5076 KB	Output is correct
46	Correct	2 ms	5076 KB	Output is correct
47	Correct	3 ms	5036 KB	Output is correct
48	Correct	3 ms	5076 KB	Output is correct
49	Correct	3 ms	5076 KB	Output is correct
50	Correct	3 ms	5076 KB	Output is correct
51	Correct	4 ms	5204 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	2 ms	5076 KB	Output is correct
57	Correct	3 ms	5204 KB	Output is correct
58	Correct	3 ms	5080 KB	Output is correct
59	Correct	3 ms	5060 KB	Output is correct
60	Correct	3 ms	5076 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	3 ms	4948 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	2 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	2 ms	4948 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	4948 KB	Output is correct
11	Correct	3 ms	4948 KB	Output is correct
12	Correct	2 ms	5020 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	2 ms	4980 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	4948 KB	Output is correct
18	Correct	2 ms	4948 KB	Output is correct
19	Correct	2 ms	4960 KB	Output is correct
20	Correct	2 ms	4948 KB	Output is correct
21	Correct	2 ms	4948 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	5100 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	5056 KB	Output is correct
37	Correct	3 ms	5076 KB	Output is correct
38	Correct	3 ms	5076 KB	Output is correct
39	Correct	4 ms	5076 KB	Output is correct
40	Correct	3 ms	5076 KB	Output is correct
41	Correct	3 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	5076 KB	Output is correct
45	Correct	2 ms	5076 KB	Output is correct
46	Correct	2 ms	5076 KB	Output is correct
47	Correct	3 ms	5036 KB	Output is correct
48	Correct	3 ms	5076 KB	Output is correct
49	Correct	3 ms	5076 KB	Output is correct
50	Correct	3 ms	5076 KB	Output is correct
51	Correct	4 ms	5204 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	2 ms	5076 KB	Output is correct
57	Correct	3 ms	5204 KB	Output is correct
58	Correct	3 ms	5080 KB	Output is correct
59	Correct	3 ms	5060 KB	Output is correct
60	Correct	3 ms	5076 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	73 ms	13132 KB	Output is correct
65	Correct	111 ms	13140 KB	Output is correct
66	Correct	86 ms	13072 KB	Output is correct
67	Correct	80 ms	13048 KB	Output is correct
68	Correct	71 ms	13136 KB	Output is correct
69	Correct	67 ms	13048 KB	Output is correct
70	Correct	65 ms	13136 KB	Output is correct
71	Correct	90 ms	13092 KB	Output is correct
72	Correct	75 ms	13056 KB	Output is correct
73	Correct	83 ms	25676 KB	Output is correct
74	Correct	83 ms	25580 KB	Output is correct
75	Correct	64 ms	12936 KB	Output is correct
76	Correct	81 ms	13104 KB	Output is correct
77	Correct	69 ms	12924 KB	Output is correct
78	Correct	65 ms	13028 KB	Output is correct
79	Correct	71 ms	13032 KB	Output is correct
80	Correct	93 ms	12904 KB	Output is correct
81	Correct	59 ms	13432 KB	Output is correct
82	Correct	60 ms	13256 KB	Output is correct
83	Correct	76 ms	18188 KB	Output is correct
84	Correct	84 ms	20380 KB	Output is correct
85	Correct	95 ms	20008 KB	Output is correct
86	Correct	74 ms	14364 KB	Output is correct
87	Correct	81 ms	13864 KB	Output is correct
88	Correct	128 ms	14244 KB	Output is correct
89	Correct	79 ms	14324 KB	Output is correct
90	Correct	65 ms	14152 KB	Output is correct
91	Correct	66 ms	14312 KB	Output is correct
92	Correct	82 ms	14724 KB	Output is correct
93	Correct	69 ms	17172 KB	Output is correct
94	Correct	65 ms	18812 KB	Output is correct
95	Correct	71 ms	17436 KB	Output is correct
96	Correct	89 ms	15708 KB	Output is correct
97	Correct	64 ms	14168 KB	Output is correct
98	Correct	62 ms	13644 KB	Output is correct
99	Correct	76 ms	13408 KB	Output is correct
100	Correct	68 ms	16660 KB	Output is correct
101	Correct	119 ms	14652 KB	Output is correct
102	Correct	68 ms	13864 KB	Output is correct
103	Correct	77 ms	13660 KB	Output is correct
104	Correct	44 ms	13824 KB	Output is correct
105	Correct	109 ms	22636 KB	Output is correct
106	Correct	48 ms	13812 KB	Output is correct
107	Correct	48 ms	13828 KB	Output is correct
108	Correct	109 ms	26496 KB	Output is correct
109	Correct	45 ms	13764 KB	Output is correct
110	Correct	84 ms	26824 KB	Output is correct
111	Correct	62 ms	13024 KB	Output is correct

답안 #763025

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