oj.uz

Submission #763024

# Submission time Handle Problem Language Result Execution time Memory
763024 2023-06-22T02:30:35 Z CDuong Power Plant (JOI20_power) C++17
100 / 100
 114 ms 29440 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][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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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