oj.uz

Submission #763064

# Submission time Handle Problem Language Result Execution time Memory
763064 2023-06-22T03:00:48 Z vjudge1 Power Plant (JOI20_power) C++14
47 / 100
 1500 ms 12252 KB 
//#pragma GCC optimize("Ofast,unroll-loops")
//#pragma GCC target("bmi,bmi2,lzcnt,popcnt")
//#pragma GCC target("avx2,popcnt,lzcnt,abm,bmi,bmi2,fma,tune=native")
//#pragma expected_value
//#pragma isolated_call
//#pragma disjoint

#include<bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>

//using namespace __gnu_pbds;
using namespace std;

//#define int long long
//#define double long double
#define Fi first
#define Se second
#define Rep(i,a,b) for (int i=a;i<=b;++i)
#define Repu(i,b,a) for (int i=b;i>=a;--i)
#define pb push_back
#define ms(a,i) memset(a,i,sizeof(a))
#define sz size()
#define mp make_pair
#define endl '\n'
#define sef setprecision(12)<<fixed
#define cer cout<<"cak"<<endl;

typedef pair<int,int> ii;
typedef vector<int> vi;
typedef vector<double> va;
typedef vector<ii> vii;
typedef vector<vi> vvi;
typedef vector<va> vva;

//const double EPS=1e-9;
const double PI=acos(-1);
//const int oo=1e18;
const int MN=2e5+5;
const int mod=1e9+7;

using cd=complex<double>;

//typedef tree<int,null_type,less<int>,rb_tree_tag, tree_order_statistics_node_update> index_set;

int n;
vi adj[MN];

char s[MN];

int siz[MN];

void dfs(int u,int pre) {
	int sum = 0;
	for(int v:adj[u]) {
		if(v==pre) continue;
		dfs(v,u);
		sum += siz[v];
	}

	if(s[u]=='1') {
		sum--;
		siz[u] = max(1,sum);
	}
	else {
		siz[u] = sum;
	}
}

void solve(int u) {
	for(int v:adj[u]) {
		dfs(v,u);
		siz[u] = max(siz[u], siz[v]);
	}
	siz[u]++;
}

void process(int u) {
	for(int v:adj[u]) {
		dfs(v,u);
		siz[u] += siz[v];
	}
}

signed main() {
	//freopen(".inp","r",stdin); freopen(".out","w",stdout);

	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);

	cin>>n;
	Rep(i,1,n-1) {
		int u,v; cin>>u>>v;
		adj[u].pb(v); adj[v].pb(u);
	}

	Rep(i,1,n) cin>>s[i];

	int ans=0;

	Rep(i,1,n) {
		if(s[i]=='1') {
			Rep(i,1,n) siz[i] = 0;
			solve(i);
			//cout<<"Root at "<<i<<endl;
			//Rep(i,1,n) cout<<siz[i]<<" ";
			//cout<<endl;
			ans=max(ans,siz[i]);
		}
		else {
			Rep(i,1,n) siz[i] = 0;
			process(i);
			ans=max(ans,siz[i]);
		}
	}

	cout<<ans;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 5020 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 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 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 2 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

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 5020 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 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 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 2 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 43 ms 5076 KB Output is correct
23 Correct 40 ms 5076 KB Output is correct
24 Correct 38 ms 5076 KB Output is correct
25 Correct 35 ms 5104 KB Output is correct
26 Correct 35 ms 5104 KB Output is correct
27 Correct 35 ms 5088 KB Output is correct
28 Correct 35 ms 5076 KB Output is correct
29 Correct 57 ms 5232 KB Output is correct
30 Correct 55 ms 5204 KB Output is correct
31 Correct 33 ms 5076 KB Output is correct
32 Correct 41 ms 5088 KB Output is correct
33 Correct 40 ms 5076 KB Output is correct
34 Correct 38 ms 5076 KB Output is correct
35 Correct 37 ms 5076 KB Output is correct
36 Correct 37 ms 5080 KB Output is correct
37 Correct 29 ms 5076 KB Output is correct
38 Correct 34 ms 5076 KB Output is correct
39 Correct 51 ms 5200 KB Output is correct
40 Correct 51 ms 5076 KB Output is correct
41 Correct 39 ms 5076 KB Output is correct
42 Correct 38 ms 5076 KB Output is correct
43 Correct 37 ms 5120 KB Output is correct
44 Correct 38 ms 5076 KB Output is correct
45 Correct 37 ms 5076 KB Output is correct
46 Correct 36 ms 5076 KB Output is correct
47 Correct 36 ms 5112 KB Output is correct
48 Correct 45 ms 5076 KB Output is correct
49 Correct 38 ms 5076 KB Output is correct
50 Correct 39 ms 5076 KB Output is correct
51 Correct 38 ms 5120 KB Output is correct
52 Correct 37 ms 5076 KB Output is correct
53 Correct 35 ms 5136 KB Output is correct
54 Correct 44 ms 5076 KB Output is correct
55 Correct 43 ms 5076 KB Output is correct
56 Correct 26 ms 5112 KB Output is correct
57 Correct 51 ms 5236 KB Output is correct
58 Correct 27 ms 5112 KB Output is correct
59 Correct 22 ms 5112 KB Output is correct
60 Correct 49 ms 5204 KB Output is correct
61 Correct 21 ms 5112 KB Output is correct
62 Correct 50 ms 5204 KB Output is correct
63 Correct 37 ms 5084 KB Output is correct

Subtask #3
0.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 5020 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 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 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 2 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 43 ms 5076 KB Output is correct
23 Correct 40 ms 5076 KB Output is correct
24 Correct 38 ms 5076 KB Output is correct
25 Correct 35 ms 5104 KB Output is correct
26 Correct 35 ms 5104 KB Output is correct
27 Correct 35 ms 5088 KB Output is correct
28 Correct 35 ms 5076 KB Output is correct
29 Correct 57 ms 5232 KB Output is correct
30 Correct 55 ms 5204 KB Output is correct
31 Correct 33 ms 5076 KB Output is correct
32 Correct 41 ms 5088 KB Output is correct
33 Correct 40 ms 5076 KB Output is correct
34 Correct 38 ms 5076 KB Output is correct
35 Correct 37 ms 5076 KB Output is correct
36 Correct 37 ms 5080 KB Output is correct
37 Correct 29 ms 5076 KB Output is correct
38 Correct 34 ms 5076 KB Output is correct
39 Correct 51 ms 5200 KB Output is correct
40 Correct 51 ms 5076 KB Output is correct
41 Correct 39 ms 5076 KB Output is correct
42 Correct 38 ms 5076 KB Output is correct
43 Correct 37 ms 5120 KB Output is correct
44 Correct 38 ms 5076 KB Output is correct
45 Correct 37 ms 5076 KB Output is correct
46 Correct 36 ms 5076 KB Output is correct
47 Correct 36 ms 5112 KB Output is correct
48 Correct 45 ms 5076 KB Output is correct
49 Correct 38 ms 5076 KB Output is correct
50 Correct 39 ms 5076 KB Output is correct
51 Correct 38 ms 5120 KB Output is correct
52 Correct 37 ms 5076 KB Output is correct
53 Correct 35 ms 5136 KB Output is correct
54 Correct 44 ms 5076 KB Output is correct
55 Correct 43 ms 5076 KB Output is correct
56 Correct 26 ms 5112 KB Output is correct
57 Correct 51 ms 5236 KB Output is correct
58 Correct 27 ms 5112 KB Output is correct
59 Correct 22 ms 5112 KB Output is correct
60 Correct 49 ms 5204 KB Output is correct
61 Correct 21 ms 5112 KB Output is correct
62 Correct 50 ms 5204 KB Output is correct
63 Correct 37 ms 5084 KB Output is correct
64 Execution timed out 1583 ms 12252 KB Time limit exceeded
65 Halted 0 ms 0 KB -