답안 #763067

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
763067	2023-06-22T03:05:15 Z	huutuan	Power Plant (JOI20_power)	C++14	100 / 100	101 ms	25928 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	4948 KB	Output is correct
2	Correct	2 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	3 ms	4948 KB	Output is correct
6	Correct	2 ms	4996 KB	Output is correct
7	Correct	2 ms	4948 KB	Output is correct
8	Correct	2 ms	4948 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	2 ms	4948 KB	Output is correct
12	Correct	2 ms	4948 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	2 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	2 ms	4948 KB	Output is correct
18	Correct	2 ms	4948 KB	Output is correct
19	Correct	3 ms	4948 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	2 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	3 ms	4948 KB	Output is correct
6	Correct	2 ms	4996 KB	Output is correct
7	Correct	2 ms	4948 KB	Output is correct
8	Correct	2 ms	4948 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	2 ms	4948 KB	Output is correct
12	Correct	2 ms	4948 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	2 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	2 ms	4948 KB	Output is correct
18	Correct	2 ms	4948 KB	Output is correct
19	Correct	3 ms	4948 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	5004 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	5076 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	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	3 ms	5076 KB	Output is correct
46	Correct	3 ms	5076 KB	Output is correct
47	Correct	3 ms	5076 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	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	2 ms	5076 KB	Output is correct
57	Correct	3 ms	5204 KB	Output is correct
58	Correct	2 ms	5076 KB	Output is correct
59	Correct	3 ms	5008 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	2 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	3 ms	4948 KB	Output is correct
6	Correct	2 ms	4996 KB	Output is correct
7	Correct	2 ms	4948 KB	Output is correct
8	Correct	2 ms	4948 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	2 ms	4948 KB	Output is correct
12	Correct	2 ms	4948 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	2 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	2 ms	4948 KB	Output is correct
18	Correct	2 ms	4948 KB	Output is correct
19	Correct	3 ms	4948 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	5004 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	5076 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	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	3 ms	5076 KB	Output is correct
46	Correct	3 ms	5076 KB	Output is correct
47	Correct	3 ms	5076 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	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	2 ms	5076 KB	Output is correct
57	Correct	3 ms	5204 KB	Output is correct
58	Correct	2 ms	5076 KB	Output is correct
59	Correct	3 ms	5008 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	72 ms	12348 KB	Output is correct
65	Correct	81 ms	12352 KB	Output is correct
66	Correct	66 ms	12256 KB	Output is correct
67	Correct	63 ms	12300 KB	Output is correct
68	Correct	66 ms	12236 KB	Output is correct
69	Correct	63 ms	12316 KB	Output is correct
70	Correct	69 ms	12352 KB	Output is correct
71	Correct	71 ms	12268 KB	Output is correct
72	Correct	62 ms	12264 KB	Output is correct
73	Correct	79 ms	24956 KB	Output is correct
74	Correct	77 ms	24844 KB	Output is correct
75	Correct	61 ms	12236 KB	Output is correct
76	Correct	61 ms	12160 KB	Output is correct
77	Correct	84 ms	12160 KB	Output is correct
78	Correct	64 ms	12136 KB	Output is correct
79	Correct	60 ms	12160 KB	Output is correct
80	Correct	59 ms	12156 KB	Output is correct
81	Correct	53 ms	12540 KB	Output is correct
82	Correct	57 ms	12384 KB	Output is correct
83	Correct	66 ms	17452 KB	Output is correct
84	Correct	68 ms	19472 KB	Output is correct
85	Correct	71 ms	19268 KB	Output is correct
86	Correct	62 ms	13580 KB	Output is correct
87	Correct	61 ms	13004 KB	Output is correct
88	Correct	65 ms	13540 KB	Output is correct
89	Correct	63 ms	13564 KB	Output is correct
90	Correct	63 ms	13272 KB	Output is correct
91	Correct	61 ms	13548 KB	Output is correct
92	Correct	83 ms	13896 KB	Output is correct
93	Correct	64 ms	16372 KB	Output is correct
94	Correct	59 ms	17988 KB	Output is correct
95	Correct	75 ms	16616 KB	Output is correct
96	Correct	70 ms	14900 KB	Output is correct
97	Correct	63 ms	13336 KB	Output is correct
98	Correct	59 ms	12864 KB	Output is correct
99	Correct	73 ms	12592 KB	Output is correct
100	Correct	70 ms	15856 KB	Output is correct
101	Correct	99 ms	13768 KB	Output is correct
102	Correct	58 ms	13032 KB	Output is correct
103	Correct	62 ms	12888 KB	Output is correct
104	Correct	43 ms	12992 KB	Output is correct
105	Correct	101 ms	21792 KB	Output is correct
106	Correct	44 ms	12952 KB	Output is correct
107	Correct	46 ms	12992 KB	Output is correct
108	Correct	79 ms	25676 KB	Output is correct
109	Correct	43 ms	12956 KB	Output is correct
110	Correct	82 ms	25928 KB	Output is correct
111	Correct	67 ms	12200 KB	Output is correct

답안 #763067

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