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Submission #438659

# Submission time Handle Problem Language Result Execution time Memory
438659 2021-06-28T11:36:16 Z soroush Power Plant (JOI20_power) C++17
47 / 100
 1500 ms 11820 KB 
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2")
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int , int> pii;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const int maxn = 2e5 + 10;
const ll mod = 1e9+7;

#define pb push_back
#define endl '\n'
#define dokme(x) cout << x , exit(0)
#define ms(x , y) memset(x , y , sizeof x)
ll pw(ll a, ll b, ll md = mod){ll res = 1;while(b){if(b&1){res=(a*res)%md;}a=(a*a)%md;b>>=1;}return(res);}

int n;
string s;
vector < int > adj[maxn];

int dfs(int v , int par){
	int res = 0;
	for(int u : adj[v])if(u ^ par)
		res += dfs(u , v);
	if(s[v] == '1')
		res = max(res - 1 , 1);
	return res;
}

int solve(int v){
	int res = 0;
	for(auto u : adj[v])
		res = max(res , dfs(u , v));
	return res + 1;
}

int32_t main(){
	ios::sync_with_stdio(false),cin.tie(0),cout.tie(0);
	cin >> n;
	for(int i = 1 ; i < n ; i ++){
		int u , v;
		cin >> u >> v;
		u -- , v --;
		adj[u].pb(v);
		adj[v].pb(u);
	}
	cin >> s;
	int ans = 0;
	for(int i = 0 ; i < n ; i ++)if(s[i] == '1')
		ans = max(ans , solve(i));
	cout << ans;
	return(0);
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 4 ms 4940 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 5 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 5 ms 4940 KB Output is correct
8 Correct 5 ms 4940 KB Output is correct
9 Correct 4 ms 4940 KB Output is correct
10 Correct 4 ms 4940 KB Output is correct
11 Correct 5 ms 4940 KB Output is correct
12 Correct 4 ms 4940 KB Output is correct
13 Correct 4 ms 5068 KB Output is correct
14 Correct 4 ms 5008 KB Output is correct
15 Correct 4 ms 4940 KB Output is correct
16 Correct 4 ms 4940 KB Output is correct
17 Correct 4 ms 4940 KB Output is correct
18 Correct 4 ms 4940 KB Output is correct
19 Correct 4 ms 4940 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4940 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 4 ms 4940 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 5 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 5 ms 4940 KB Output is correct
8 Correct 5 ms 4940 KB Output is correct
9 Correct 4 ms 4940 KB Output is correct
10 Correct 4 ms 4940 KB Output is correct
11 Correct 5 ms 4940 KB Output is correct
12 Correct 4 ms 4940 KB Output is correct
13 Correct 4 ms 5068 KB Output is correct
14 Correct 4 ms 5008 KB Output is correct
15 Correct 4 ms 4940 KB Output is correct
16 Correct 4 ms 4940 KB Output is correct
17 Correct 4 ms 4940 KB Output is correct
18 Correct 4 ms 4940 KB Output is correct
19 Correct 4 ms 4940 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4940 KB Output is correct
22 Correct 106 ms 5072 KB Output is correct
23 Correct 107 ms 5068 KB Output is correct
24 Correct 90 ms 5068 KB Output is correct
25 Correct 60 ms 5068 KB Output is correct
26 Correct 32 ms 5104 KB Output is correct
27 Correct 15 ms 5068 KB Output is correct
28 Correct 5 ms 5076 KB Output is correct
29 Correct 104 ms 5068 KB Output is correct
30 Correct 66 ms 5124 KB Output is correct
31 Correct 70 ms 5068 KB Output is correct
32 Correct 50 ms 5068 KB Output is correct
33 Correct 100 ms 5188 KB Output is correct
34 Correct 57 ms 5068 KB Output is correct
35 Correct 28 ms 5076 KB Output is correct
36 Correct 14 ms 5080 KB Output is correct
37 Correct 56 ms 5064 KB Output is correct
38 Correct 54 ms 5068 KB Output is correct
39 Correct 116 ms 5068 KB Output is correct
40 Correct 70 ms 5068 KB Output is correct
41 Correct 44 ms 5068 KB Output is correct
42 Correct 67 ms 5068 KB Output is correct
43 Correct 17 ms 5096 KB Output is correct
44 Correct 83 ms 5068 KB Output is correct
45 Correct 69 ms 5068 KB Output is correct
46 Correct 52 ms 5068 KB Output is correct
47 Correct 25 ms 5068 KB Output is correct
48 Correct 74 ms 5068 KB Output is correct
49 Correct 75 ms 5068 KB Output is correct
50 Correct 74 ms 5088 KB Output is correct
51 Correct 74 ms 5080 KB Output is correct
52 Correct 90 ms 5088 KB Output is correct
53 Correct 79 ms 5088 KB Output is correct
54 Correct 83 ms 5080 KB Output is correct
55 Correct 84 ms 5068 KB Output is correct
56 Correct 6 ms 5068 KB Output is correct
57 Correct 5 ms 5068 KB Output is correct
58 Correct 51 ms 5068 KB Output is correct
59 Correct 53 ms 5068 KB Output is correct
60 Correct 5 ms 5068 KB Output is correct
61 Correct 4 ms 5068 KB Output is correct
62 Correct 5 ms 5068 KB Output is correct
63 Correct 62 ms 5068 KB Output is correct

Subtask #3
0.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 4 ms 4940 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 5 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 5 ms 4940 KB Output is correct
8 Correct 5 ms 4940 KB Output is correct
9 Correct 4 ms 4940 KB Output is correct
10 Correct 4 ms 4940 KB Output is correct
11 Correct 5 ms 4940 KB Output is correct
12 Correct 4 ms 4940 KB Output is correct
13 Correct 4 ms 5068 KB Output is correct
14 Correct 4 ms 5008 KB Output is correct
15 Correct 4 ms 4940 KB Output is correct
16 Correct 4 ms 4940 KB Output is correct
17 Correct 4 ms 4940 KB Output is correct
18 Correct 4 ms 4940 KB Output is correct
19 Correct 4 ms 4940 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4940 KB Output is correct
22 Correct 106 ms 5072 KB Output is correct
23 Correct 107 ms 5068 KB Output is correct
24 Correct 90 ms 5068 KB Output is correct
25 Correct 60 ms 5068 KB Output is correct
26 Correct 32 ms 5104 KB Output is correct
27 Correct 15 ms 5068 KB Output is correct
28 Correct 5 ms 5076 KB Output is correct
29 Correct 104 ms 5068 KB Output is correct
30 Correct 66 ms 5124 KB Output is correct
31 Correct 70 ms 5068 KB Output is correct
32 Correct 50 ms 5068 KB Output is correct
33 Correct 100 ms 5188 KB Output is correct
34 Correct 57 ms 5068 KB Output is correct
35 Correct 28 ms 5076 KB Output is correct
36 Correct 14 ms 5080 KB Output is correct
37 Correct 56 ms 5064 KB Output is correct
38 Correct 54 ms 5068 KB Output is correct
39 Correct 116 ms 5068 KB Output is correct
40 Correct 70 ms 5068 KB Output is correct
41 Correct 44 ms 5068 KB Output is correct
42 Correct 67 ms 5068 KB Output is correct
43 Correct 17 ms 5096 KB Output is correct
44 Correct 83 ms 5068 KB Output is correct
45 Correct 69 ms 5068 KB Output is correct
46 Correct 52 ms 5068 KB Output is correct
47 Correct 25 ms 5068 KB Output is correct
48 Correct 74 ms 5068 KB Output is correct
49 Correct 75 ms 5068 KB Output is correct
50 Correct 74 ms 5088 KB Output is correct
51 Correct 74 ms 5080 KB Output is correct
52 Correct 90 ms 5088 KB Output is correct
53 Correct 79 ms 5088 KB Output is correct
54 Correct 83 ms 5080 KB Output is correct
55 Correct 84 ms 5068 KB Output is correct
56 Correct 6 ms 5068 KB Output is correct
57 Correct 5 ms 5068 KB Output is correct
58 Correct 51 ms 5068 KB Output is correct
59 Correct 53 ms 5068 KB Output is correct
60 Correct 5 ms 5068 KB Output is correct
61 Correct 4 ms 5068 KB Output is correct
62 Correct 5 ms 5068 KB Output is correct
63 Correct 62 ms 5068 KB Output is correct
64 Execution timed out 1592 ms 11820 KB Time limit exceeded
65 Halted 0 ms 0 KB -