oj.uz

Submission #763282

# Submission time Handle Problem Language Result Execution time Memory
763282 2023-06-22T07:38:30 Z vjudge1 Power Plant (JOI20_power) C++14
47 / 100
 139 ms 24972 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];
	}
}

int dp[MN];

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

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

	siz[u] = max(mx,siz[u]);
}

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;

	if(n<=2000) {
		Rep(i,1,n) {
			if(s[i]=='1') {
				Rep(i,1,n) siz[i] = 0;
				solve(i);
				ans=max(ans,siz[i]);
			}
			else {
				Rep(i,1,n) siz[i] = 0;
				process(i);
				ans=max(ans,siz[i]);
			}
		}

		cout<<ans;

		return 0;
	}

	DFS(1,1);
	Rep(i,1,n) {
		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 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4916 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 4956 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 4 ms 4948 KB Output is correct
21 Correct 3 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 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4916 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 4956 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 4 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 39 ms 5088 KB Output is correct
23 Correct 37 ms 5076 KB Output is correct
24 Correct 36 ms 5076 KB Output is correct
25 Correct 34 ms 5076 KB Output is correct
26 Correct 35 ms 5096 KB Output is correct
27 Correct 36 ms 5076 KB Output is correct
28 Correct 34 ms 5108 KB Output is correct
29 Correct 65 ms 5204 KB Output is correct
30 Correct 63 ms 5248 KB Output is correct
31 Correct 33 ms 5080 KB Output is correct
32 Correct 32 ms 5076 KB Output is correct
33 Correct 38 ms 5076 KB Output is correct
34 Correct 38 ms 5092 KB Output is correct
35 Correct 38 ms 5108 KB Output is correct
36 Correct 38 ms 5076 KB Output is correct
37 Correct 29 ms 5092 KB Output is correct
38 Correct 32 ms 5088 KB Output is correct
39 Correct 50 ms 5176 KB Output is correct
40 Correct 42 ms 5076 KB Output is correct
41 Correct 40 ms 5076 KB Output is correct
42 Correct 38 ms 5128 KB Output is correct
43 Correct 36 ms 5076 KB Output is correct
44 Correct 37 ms 5076 KB Output is correct
45 Correct 36 ms 5132 KB Output is correct
46 Correct 37 ms 5076 KB Output is correct
47 Correct 36 ms 5076 KB Output is correct
48 Correct 38 ms 5076 KB Output is correct
49 Correct 46 ms 5172 KB Output is correct
50 Correct 40 ms 5148 KB Output is correct
51 Correct 38 ms 5148 KB Output is correct
52 Correct 38 ms 5076 KB Output is correct
53 Correct 33 ms 5076 KB Output is correct
54 Correct 37 ms 5076 KB Output is correct
55 Correct 36 ms 5108 KB Output is correct
56 Correct 21 ms 5120 KB Output is correct
57 Correct 49 ms 5244 KB Output is correct
58 Correct 21 ms 5120 KB Output is correct
59 Correct 21 ms 5116 KB Output is correct
60 Correct 49 ms 5204 KB Output is correct
61 Correct 21 ms 5120 KB Output is correct
62 Correct 50 ms 5248 KB Output is correct
63 Correct 28 ms 5076 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 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4916 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 4956 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 4 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 39 ms 5088 KB Output is correct
23 Correct 37 ms 5076 KB Output is correct
24 Correct 36 ms 5076 KB Output is correct
25 Correct 34 ms 5076 KB Output is correct
26 Correct 35 ms 5096 KB Output is correct
27 Correct 36 ms 5076 KB Output is correct
28 Correct 34 ms 5108 KB Output is correct
29 Correct 65 ms 5204 KB Output is correct
30 Correct 63 ms 5248 KB Output is correct
31 Correct 33 ms 5080 KB Output is correct
32 Correct 32 ms 5076 KB Output is correct
33 Correct 38 ms 5076 KB Output is correct
34 Correct 38 ms 5092 KB Output is correct
35 Correct 38 ms 5108 KB Output is correct
36 Correct 38 ms 5076 KB Output is correct
37 Correct 29 ms 5092 KB Output is correct
38 Correct 32 ms 5088 KB Output is correct
39 Correct 50 ms 5176 KB Output is correct
40 Correct 42 ms 5076 KB Output is correct
41 Correct 40 ms 5076 KB Output is correct
42 Correct 38 ms 5128 KB Output is correct
43 Correct 36 ms 5076 KB Output is correct
44 Correct 37 ms 5076 KB Output is correct
45 Correct 36 ms 5132 KB Output is correct
46 Correct 37 ms 5076 KB Output is correct
47 Correct 36 ms 5076 KB Output is correct
48 Correct 38 ms 5076 KB Output is correct
49 Correct 46 ms 5172 KB Output is correct
50 Correct 40 ms 5148 KB Output is correct
51 Correct 38 ms 5148 KB Output is correct
52 Correct 38 ms 5076 KB Output is correct
53 Correct 33 ms 5076 KB Output is correct
54 Correct 37 ms 5076 KB Output is correct
55 Correct 36 ms 5108 KB Output is correct
56 Correct 21 ms 5120 KB Output is correct
57 Correct 49 ms 5244 KB Output is correct
58 Correct 21 ms 5120 KB Output is correct
59 Correct 21 ms 5116 KB Output is correct
60 Correct 49 ms 5204 KB Output is correct
61 Correct 21 ms 5120 KB Output is correct
62 Correct 50 ms 5248 KB Output is correct
63 Correct 28 ms 5076 KB Output is correct
64 Correct 80 ms 12372 KB Output is correct
65 Correct 62 ms 12328 KB Output is correct
66 Correct 64 ms 12364 KB Output is correct
67 Correct 67 ms 12340 KB Output is correct
68 Correct 62 ms 12336 KB Output is correct
69 Correct 60 ms 12316 KB Output is correct
70 Correct 65 ms 12344 KB Output is correct
71 Correct 62 ms 12340 KB Output is correct
72 Correct 63 ms 12264 KB Output is correct
73 Correct 139 ms 24972 KB Output is correct
74 Correct 83 ms 24796 KB Output is correct
75 Correct 60 ms 12228 KB Output is correct
76 Correct 60 ms 12236 KB Output is correct
77 Incorrect 62 ms 12204 KB Output isn't correct
78 Halted 0 ms 0 KB -