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Submission #1099951

# Submission time Handle Problem Language Result Execution time Memory
1099951 2024-10-12T08:05:08 Z ttamx Tree (IOI24_tree) C++17
100 / 100
 102 ms 43172 KB 
#include <bits/stdc++.h>

using namespace std;

using ll = long long;

const int N=2e5+5;
const int W=1e6+5;

int n,m;
int p[N];
ll w[N];
vector<int> adj[N];
bool vis[N];
ll base;
int pa[N],sz[N];
vector<pair<int,int>> event;
ll cnt[W],qs1[W],qs2[W];
bool alive[N];

int fp(int u){
    return pa[u]=u==pa[u]?u:fp(pa[u]);
}

void uni(int u,int v){
    u=fp(u),v=fp(v);
    if(u==v){
        return;
    }
    pa[v]=u;
    sz[u]+=sz[v];
    if(alive[v]){
        alive[u]=true;
    }
}

int dfs(int u){
    vis[u]=true;
    if(w[u]==0){
        return 1;
    }
    int cnt=0;
    for(auto v:adj[u]){
        cnt+=dfs(v);
    }
    return max(cnt,1);
}

void init(vector<int> _p,vector<int> _w){
    n=_p.size();
    for(int i=0;i<n;i++){
        p[i]=_p[i];
        w[i]=_w[i];
        if(i>0){
            adj[p[i]].emplace_back(i);
        }
    }
    for(int i=0;i<n;i++){
        pa[i]=i;
        sz[i]=1;
        if(adj[i].empty()){
            base+=w[i];
        }else{
            event.emplace_back(w[i],i);
        }
    }
    sort(event.rbegin(),event.rend());
    for(auto [t,u]:event){
        vis[u]=true;
        if(alive[fp(u)]){
            cnt[sz[fp(u)]]-=t;
        }
        sz[fp(u)]--;
        for(auto v:adj[u]){
            if(alive[fp(v)]){
                cnt[sz[fp(v)]]-=t;
            }
            uni(u,v);
        }
        cnt[sz[fp(u)]]+=t;
        alive[fp(u)]=true;
    }
    for(int i=1;i<W;i++){
        qs1[i]=qs1[i-1]+cnt[i];
        qs2[i]=qs2[i-1]+cnt[i]*i;
    }
}

ll query(int L,int R){
    ll ans=base*L;
    int k=R/L;
    ans+=(qs2[W-1]-qs2[k])*L;
    ans-=(qs1[W-1]-qs1[k])*R;
    return ans;
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 24924 KB Output is correct

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 43 ms 35912 KB Output is correct
2 Correct 45 ms 35400 KB Output is correct
3 Correct 43 ms 36164 KB Output is correct
4 Correct 61 ms 36808 KB Output is correct
5 Correct 55 ms 36876 KB Output is correct
6 Correct 49 ms 35724 KB Output is correct
7 Correct 53 ms 35792 KB Output is correct
8 Correct 54 ms 36232 KB Output is correct
9 Correct 49 ms 38348 KB Output is correct
10 Correct 30 ms 33480 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 25180 KB Output is correct
2 Correct 5 ms 25024 KB Output is correct
3 Correct 6 ms 25176 KB Output is correct
4 Correct 5 ms 24924 KB Output is correct
5 Correct 5 ms 25048 KB Output is correct
6 Correct 5 ms 24920 KB Output is correct
7 Correct 5 ms 24920 KB Output is correct
8 Correct 5 ms 24924 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 25180 KB Output is correct
2 Correct 5 ms 25024 KB Output is correct
3 Correct 6 ms 25176 KB Output is correct
4 Correct 5 ms 24924 KB Output is correct
5 Correct 5 ms 25048 KB Output is correct
6 Correct 5 ms 24920 KB Output is correct
7 Correct 5 ms 24920 KB Output is correct
8 Correct 5 ms 24924 KB Output is correct
9 Correct 16 ms 28108 KB Output is correct
10 Correct 16 ms 28692 KB Output is correct
11 Correct 16 ms 28372 KB Output is correct
12 Correct 18 ms 28192 KB Output is correct
13 Correct 19 ms 28120 KB Output is correct
14 Correct 17 ms 27612 KB Output is correct
15 Correct 19 ms 28112 KB Output is correct
16 Correct 19 ms 28632 KB Output is correct
17 Correct 19 ms 28284 KB Output is correct
18 Correct 19 ms 28476 KB Output is correct
19 Correct 19 ms 28632 KB Output is correct
20 Correct 19 ms 28120 KB Output is correct
21 Correct 17 ms 28220 KB Output is correct
22 Correct 12 ms 27096 KB Output is correct

Subtask #4
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 57 ms 35880 KB Output is correct
2 Correct 59 ms 38824 KB Output is correct
3 Correct 60 ms 38828 KB Output is correct
4 Correct 64 ms 38808 KB Output is correct
5 Correct 61 ms 38664 KB Output is correct
6 Correct 60 ms 41440 KB Output is correct
7 Correct 59 ms 39968 KB Output is correct
8 Correct 45 ms 34984 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 57 ms 35880 KB Output is correct
2 Correct 59 ms 38824 KB Output is correct
3 Correct 60 ms 38828 KB Output is correct
4 Correct 64 ms 38808 KB Output is correct
5 Correct 61 ms 38664 KB Output is correct
6 Correct 60 ms 41440 KB Output is correct
7 Correct 59 ms 39968 KB Output is correct
8 Correct 45 ms 34984 KB Output is correct
9 Correct 60 ms 38576 KB Output is correct
10 Correct 71 ms 38828 KB Output is correct
11 Correct 77 ms 38824 KB Output is correct
12 Correct 73 ms 38700 KB Output is correct
13 Correct 70 ms 41416 KB Output is correct
14 Correct 66 ms 39752 KB Output is correct

Subtask #6
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 34888 KB Output is correct
2 Correct 67 ms 39380 KB Output is correct
3 Correct 78 ms 39240 KB Output is correct
4 Correct 80 ms 39232 KB Output is correct
5 Correct 78 ms 39280 KB Output is correct
6 Correct 92 ms 39348 KB Output is correct
7 Correct 76 ms 39204 KB Output is correct
8 Correct 93 ms 42048 KB Output is correct
9 Correct 78 ms 40432 KB Output is correct
10 Correct 72 ms 40364 KB Output is correct

Subtask #7
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 24924 KB Output is correct
2 Correct 43 ms 35912 KB Output is correct
3 Correct 45 ms 35400 KB Output is correct
4 Correct 43 ms 36164 KB Output is correct
5 Correct 61 ms 36808 KB Output is correct
6 Correct 55 ms 36876 KB Output is correct
7 Correct 49 ms 35724 KB Output is correct
8 Correct 53 ms 35792 KB Output is correct
9 Correct 54 ms 36232 KB Output is correct
10 Correct 49 ms 38348 KB Output is correct
11 Correct 30 ms 33480 KB Output is correct
12 Correct 6 ms 25180 KB Output is correct
13 Correct 5 ms 25024 KB Output is correct
14 Correct 6 ms 25176 KB Output is correct
15 Correct 5 ms 24924 KB Output is correct
16 Correct 5 ms 25048 KB Output is correct
17 Correct 5 ms 24920 KB Output is correct
18 Correct 5 ms 24920 KB Output is correct
19 Correct 5 ms 24924 KB Output is correct
20 Correct 16 ms 28108 KB Output is correct
21 Correct 16 ms 28692 KB Output is correct
22 Correct 16 ms 28372 KB Output is correct
23 Correct 18 ms 28192 KB Output is correct
24 Correct 19 ms 28120 KB Output is correct
25 Correct 17 ms 27612 KB Output is correct
26 Correct 19 ms 28112 KB Output is correct
27 Correct 19 ms 28632 KB Output is correct
28 Correct 19 ms 28284 KB Output is correct
29 Correct 19 ms 28476 KB Output is correct
30 Correct 19 ms 28632 KB Output is correct
31 Correct 19 ms 28120 KB Output is correct
32 Correct 17 ms 28220 KB Output is correct
33 Correct 12 ms 27096 KB Output is correct
34 Correct 57 ms 35880 KB Output is correct
35 Correct 59 ms 38824 KB Output is correct
36 Correct 60 ms 38828 KB Output is correct
37 Correct 64 ms 38808 KB Output is correct
38 Correct 61 ms 38664 KB Output is correct
39 Correct 60 ms 41440 KB Output is correct
40 Correct 59 ms 39968 KB Output is correct
41 Correct 45 ms 34984 KB Output is correct
42 Correct 60 ms 38576 KB Output is correct
43 Correct 71 ms 38828 KB Output is correct
44 Correct 77 ms 38824 KB Output is correct
45 Correct 73 ms 38700 KB Output is correct
46 Correct 70 ms 41416 KB Output is correct
47 Correct 66 ms 39752 KB Output is correct
48 Correct 41 ms 34888 KB Output is correct
49 Correct 67 ms 39380 KB Output is correct
50 Correct 78 ms 39240 KB Output is correct
51 Correct 80 ms 39232 KB Output is correct
52 Correct 78 ms 39280 KB Output is correct
53 Correct 92 ms 39348 KB Output is correct
54 Correct 76 ms 39204 KB Output is correct
55 Correct 93 ms 42048 KB Output is correct
56 Correct 78 ms 40432 KB Output is correct
57 Correct 72 ms 40364 KB Output is correct
58 Correct 75 ms 39476 KB Output is correct
59 Correct 75 ms 39356 KB Output is correct
60 Correct 67 ms 39236 KB Output is correct
61 Correct 71 ms 40360 KB Output is correct
62 Correct 85 ms 40364 KB Output is correct
63 Correct 77 ms 40376 KB Output is correct
64 Correct 83 ms 40404 KB Output is correct
65 Correct 83 ms 40368 KB Output is correct
66 Correct 78 ms 40376 KB Output is correct
67 Correct 77 ms 40292 KB Output is correct
68 Correct 102 ms 43172 KB Output is correct
69 Correct 75 ms 41404 KB Output is correct
70 Correct 75 ms 40108 KB Output is correct
71 Correct 50 ms 36516 KB Output is correct