oj.uz

Submission #763069

# Submission time Handle Problem Language Result Execution time Memory
763069 2023-06-22T03:06:09 Z huutuan Power Plant (JOI20_power) C++14
100 / 100
 145 ms 34580 KB 
#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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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