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Submission #1065335

# Submission time Handle Problem Language Result Execution time Memory
1065335 2024-08-19T06:24:52 Z Dan4Life Team Coding (EGOI24_teamcoding) C++17
50 / 100
 4000 ms 53536 KB 
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) begin(a),end(a)
using ar2 = array<int,2>;
const int mxN = (int)1e5+10;
const int INF = (int)1e9;
int n, k;
vector<int> adj[mxN];
ar2 ans{0,-INF};
vector<int> col[mxN];
int a[mxN], dep[mxN], sub[mxN];
vector<int> S[mxN];
set<ar2> Dep[mxN];
int dfs_timer, st[mxN], en[mxN];

void dfs1(int s, int p){
    sub[s] = 1; st[s]=++dfs_timer;
    if(p!=-1) dep[s]=dep[p]+1;
    for(auto u : adj[s]){
        if(u==p) continue;
        dfs1(u,s); sub[s]+=sub[u];
    }
    en[s] = dfs_timer;
}

bool upper(int a, int b){
    return st[a]<=st[b] and en[a]>=en[b];
}

void dfs(int s, int p){
    S[s].pb(s); Dep[s].insert({dep[s],1});
    for(auto u : adj[s]){
        if(u==p) continue;
        dfs(u,s);
        if(sz(S[s]) < sz(S[u])) S[s].swap(S[u]), Dep[s].swap(Dep[u]);
        for(auto v : S[u]) S[s].pb(v);
        for(auto [v,w] : Dep[u]){
            auto itr = Dep[s].lower_bound({v,-1});
            if(itr!=end(Dep[s]) and (*itr)[0]==v){
                int cur = (*itr)[1];
                Dep[s].erase(itr);
                Dep[s].insert({v,cur+w});
            }
            else Dep[s].insert({v,w});
        }
    }
    if(min(sub[s],sz(col[a[s]])) < ans[0]) return;
    
    auto cur = ar2({0,0});
    unordered_map<int,int> tot; tot.clear();
    for(auto u : col[a[s]]){
        if(upper(s,u)) cur[0]++,tot[dep[u]]++;
    }
    for(auto u : col[a[s]]){
        if(upper(s,u)) continue;
        auto itr = Dep[s].lower_bound({dep[u],-1});
        if(itr!=end(Dep[s]) and (*itr)[0]==dep[u]){
            if(tot[dep[u]] < (*itr)[1]){
                cur[0]++, cur[1]--; tot[dep[u]]++;
            }
        }
    }
    ans = max(ans, cur);
}

int main(){
    cin >> n >> k;
    for(int i = 0; i < n; i++){
        cin >> a[i]; col[a[i]].pb(i);
    }
    for(int i = 1; i < n; i++){
        int x; cin >> x; adj[i].pb(x), adj[x].pb(i);
    }
    dfs1(0,-1); 
    for(int i = 0; i < n; i++) 
        sort(all(adj[i]),[&](int a, int b){return sub[a]>sub[b]; });
    dfs(0,-1); cout << ans[0] << " " << -ans[1] << "\n";
}

Subtask #1
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 12124 KB Output is correct
2 Correct 5 ms 12008 KB Output is correct
3 Correct 5 ms 12212 KB Output is correct
4 Correct 5 ms 12124 KB Output is correct
5 Correct 6 ms 12124 KB Output is correct
6 Correct 5 ms 12132 KB Output is correct
7 Correct 5 ms 12124 KB Output is correct
8 Correct 12 ms 12892 KB Output is correct
9 Correct 97 ms 53448 KB Output is correct
10 Correct 5 ms 12124 KB Output is correct
11 Correct 74 ms 12972 KB Output is correct
12 Execution timed out 4075 ms 46768 KB Time limit exceeded
13 Halted 0 ms 0 KB -

Subtask #2
0.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 12120 KB Output is correct
2 Correct 4 ms 12124 KB Output is correct
3 Correct 5 ms 12124 KB Output is correct
4 Correct 77 ms 12936 KB Output is correct
5 Execution timed out 4011 ms 46824 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 12124 KB Output is correct
2 Correct 5 ms 12376 KB Output is correct
3 Correct 5 ms 12124 KB Output is correct
4 Correct 4 ms 12124 KB Output is correct
5 Correct 5 ms 12124 KB Output is correct
6 Correct 5 ms 12124 KB Output is correct
7 Correct 7 ms 12124 KB Output is correct
8 Correct 98 ms 53164 KB Output is correct
9 Correct 6 ms 12376 KB Output is correct
10 Correct 6 ms 12892 KB Output is correct
11 Correct 98 ms 53536 KB Output is correct
12 Correct 5 ms 12124 KB Output is correct
13 Correct 5 ms 12124 KB Output is correct
14 Correct 4 ms 12124 KB Output is correct
15 Correct 9 ms 12376 KB Output is correct
16 Correct 7 ms 12380 KB Output is correct
17 Correct 6 ms 12380 KB Output is correct
18 Correct 133 ms 32520 KB Output is correct
19 Correct 135 ms 32716 KB Output is correct
20 Correct 201 ms 36296 KB Output is correct
21 Correct 162 ms 29332 KB Output is correct
22 Correct 111 ms 30296 KB Output is correct
23 Correct 199 ms 43212 KB Output is correct
24 Correct 213 ms 39368 KB Output is correct
25 Correct 7 ms 12636 KB Output is correct
26 Correct 6 ms 12636 KB Output is correct
27 Correct 6 ms 12380 KB Output is correct
28 Correct 6 ms 12380 KB Output is correct
29 Correct 12 ms 14172 KB Output is correct
30 Correct 124 ms 32028 KB Output is correct
31 Correct 159 ms 33364 KB Output is correct
32 Correct 161 ms 36812 KB Output is correct
33 Correct 126 ms 30364 KB Output is correct
34 Correct 7 ms 12196 KB Output is correct
35 Correct 5 ms 12380 KB Output is correct
36 Correct 6 ms 12124 KB Output is correct
37 Correct 5 ms 12124 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 12124 KB Output is correct
2 Correct 5 ms 12124 KB Output is correct
3 Correct 5 ms 12196 KB Output is correct
4 Correct 6 ms 12216 KB Output is correct
5 Correct 4 ms 12124 KB Output is correct
6 Correct 6 ms 12124 KB Output is correct
7 Correct 6 ms 12124 KB Output is correct
8 Correct 11 ms 12972 KB Output is correct
9 Correct 5 ms 12124 KB Output is correct
10 Correct 75 ms 13000 KB Output is correct
11 Correct 5 ms 12120 KB Output is correct
12 Correct 7 ms 12892 KB Output is correct
13 Correct 5 ms 12124 KB Output is correct
14 Correct 24 ms 12448 KB Output is correct
15 Correct 6 ms 12192 KB Output is correct
16 Correct 40 ms 12696 KB Output is correct
17 Correct 4 ms 12120 KB Output is correct
18 Correct 5 ms 12124 KB Output is correct
19 Correct 7 ms 12192 KB Output is correct
20 Correct 10 ms 12376 KB Output is correct
21 Correct 6 ms 12124 KB Output is correct
22 Correct 7 ms 12124 KB Output is correct
23 Correct 6 ms 12408 KB Output is correct
24 Correct 9 ms 12380 KB Output is correct
25 Correct 7 ms 12380 KB Output is correct
26 Correct 7 ms 12636 KB Output is correct
27 Correct 7 ms 12724 KB Output is correct
28 Correct 6 ms 12380 KB Output is correct
29 Correct 9 ms 12380 KB Output is correct
30 Correct 7 ms 12760 KB Output is correct
31 Correct 7 ms 12572 KB Output is correct
32 Correct 7 ms 12416 KB Output is correct
33 Correct 6 ms 12636 KB Output is correct
34 Correct 6 ms 12468 KB Output is correct
35 Correct 7 ms 12348 KB Output is correct
36 Correct 6 ms 12380 KB Output is correct
37 Correct 6 ms 12380 KB Output is correct
38 Correct 5 ms 12204 KB Output is correct
39 Correct 6 ms 12132 KB Output is correct
40 Correct 6 ms 12016 KB Output is correct
41 Correct 6 ms 12372 KB Output is correct

Subtask #5
0.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 12124 KB Output is correct
2 Correct 5 ms 12008 KB Output is correct
3 Correct 5 ms 12212 KB Output is correct
4 Correct 5 ms 12124 KB Output is correct
5 Correct 6 ms 12124 KB Output is correct
6 Correct 5 ms 12132 KB Output is correct
7 Correct 5 ms 12124 KB Output is correct
8 Correct 12 ms 12892 KB Output is correct
9 Correct 97 ms 53448 KB Output is correct
10 Correct 5 ms 12124 KB Output is correct
11 Correct 74 ms 12972 KB Output is correct
12 Execution timed out 4075 ms 46768 KB Time limit exceeded
13 Halted 0 ms 0 KB -