oj.uz

Submission #917387

# Submission time Handle Problem Language Result Execution time Memory
917387 2024-01-28T04:29:26 Z abcvuitunggio Beech Tree (IOI23_beechtree) C++17
9 / 100
 2000 ms 35100 KB 
#include "beechtree.h"
#include <bits/stdc++.h>
using namespace std;
int n,m,bad[200001],d[200001],p[200001][20],dp[2001][2001],ch[200001];
vector <pair <int, int>> ke[200001];
vector <int> res;
void dfs(int u){
    for (auto [c,v]:ke[u]){
        dfs(v);
        bad[u]|=bad[v];
    }
}
int lca(int u, int v){
    u++,v++;
    if (d[u]<d[v])
        swap(u,v);
    int x=d[u]-d[v];
    for (int i=0;i<20;i++)
        if ((x>>i)&1)
            u=p[u][i];
    if (u==v)
        return u-1;
    for (int i=19;i>=0;i--)
        if (p[u][i]!=p[v][i]){
            u=p[u][i];
            v=p[v][i];
        }
    return p[u][0]-1;
}
vector <int> beechtree(int N, int M, vector<int> P, vector<int> C){
    n=N,m=M;
    for (int i=1;i<n;i++)
        ke[P[i]].push_back({C[i],i});
    for (int i=0;i<n;i++){
        sort(ke[i].begin(),ke[i].end());
        for (int j=1;j<ke[i].size();j++)
            if (ke[i][j].first==ke[i][j-1].first)
                bad[i]=1;
        p[i+1][0]=P[i]+1;
        d[i+1]=d[P[i]+1]+1;
        for (int j=1;j<20;j++)
            p[i+1][j]=p[p[i+1][j-1]][j-1];
    }
    for (int i=0;i<n;i++)
        for (int j=i+1;j<n;j++){
            int u=i,v=j;
            if (ke[i].size()>ke[j].size())
                swap(u,v);
            for (auto [c,k]:ke[u])
                ch[c]=1;
            int cnt=0;
            for (auto [c,k]:ke[v])
                cnt+=ch[c];
            for (auto [c,k]:ke[u])
                ch[c]=0;
            if (cnt!=ke[u].size()){
                bad[lca(i,j)]=1;
                continue;
            }
            dp[i][j]=(ke[i].size()>ke[j].size()?1:(ke[i].size()<ke[j].size()?-1:0));
            if (!dp[i][j]){
                if (!i)
                    dp[i][j]=1;
                else if (C[i]==C[j])
                    dp[i][j]=dp[P[i]][P[j]];
            }
            if (dp[i][j]<0&&!i)
                bad[0]=1;
            if (dp[i][j]&&dp[i][j]==-dp[P[i]][P[j]]){
                int l=lca(i,j);
                if (l!=i)
                    bad[l]=1;
                else{
                    if (ke[i].size()<ke[j].size())
                        bad[i]=1;
                    else
                        bad[P[i]]=1;
                }
            }
        }
    dfs(0);
    for (int i=0;i<n;i++)
        res.push_back(bad[i]^1);
    return res;
}

Compilation message

beechtree.cpp: In function 'std::vector<int> beechtree(int, int, std::vector<int>, std::vector<int>)':
beechtree.cpp:36:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |         for (int j=1;j<ke[i].size();j++)
      |                      ~^~~~~~~~~~~~~
beechtree.cpp:56:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |             if (cnt!=ke[u].size()){
      |                 ~~~^~~~~~~~~~~~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8792 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 3 ms 8796 KB Output is correct

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8792 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 3 ms 8796 KB Output is correct
4 Correct 2 ms 8796 KB Output is correct
5 Correct 3 ms 8792 KB Output is correct
6 Correct 2 ms 8796 KB Output is correct
7 Correct 2 ms 8796 KB Output is correct
8 Correct 2 ms 8796 KB Output is correct
9 Correct 2 ms 8796 KB Output is correct
10 Correct 2 ms 8796 KB Output is correct
11 Correct 2 ms 8796 KB Output is correct
12 Correct 2 ms 8796 KB Output is correct
13 Correct 2 ms 9048 KB Output is correct
14 Correct 2 ms 8792 KB Output is correct
15 Correct 2 ms 8796 KB Output is correct
16 Correct 2 ms 8796 KB Output is correct
17 Correct 2 ms 8796 KB Output is correct
18 Correct 2 ms 8796 KB Output is correct
19 Correct 2 ms 8796 KB Output is correct
20 Correct 3 ms 8796 KB Output is correct
21 Correct 2 ms 8792 KB Output is correct
22 Correct 3 ms 8796 KB Output is correct
23 Correct 2 ms 8796 KB Output is correct
24 Correct 2 ms 8796 KB Output is correct
25 Correct 2 ms 8796 KB Output is correct
26 Correct 2 ms 8796 KB Output is correct
27 Correct 2 ms 8796 KB Output is correct
28 Correct 2 ms 8796 KB Output is correct
29 Correct 2 ms 8796 KB Output is correct
30 Correct 2 ms 8796 KB Output is correct
31 Correct 2 ms 8796 KB Output is correct
32 Correct 2 ms 8796 KB Output is correct
33 Correct 2 ms 8796 KB Output is correct
34 Correct 2 ms 8796 KB Output is correct

Subtask #2
0.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8792 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 3 ms 8796 KB Output is correct
4 Correct 2 ms 8796 KB Output is correct
5 Correct 3 ms 8792 KB Output is correct
6 Correct 2 ms 8796 KB Output is correct
7 Execution timed out 2053 ms 35100 KB Time limit exceeded
8 Halted 0 ms 0 KB -

Subtask #3
0.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10840 KB Output is correct
2 Correct 4 ms 10844 KB Output is correct
3 Correct 2 ms 10844 KB Output is correct
4 Correct 2 ms 10844 KB Output is correct
5 Correct 3 ms 10844 KB Output is correct
6 Correct 2 ms 10844 KB Output is correct
7 Correct 3 ms 10844 KB Output is correct
8 Correct 2 ms 10840 KB Output is correct
9 Correct 2 ms 8796 KB Output is correct
10 Correct 2 ms 10844 KB Output is correct
11 Correct 7 ms 19036 KB Output is correct
12 Correct 6 ms 16984 KB Output is correct
13 Correct 8 ms 16984 KB Output is correct
14 Correct 6 ms 16988 KB Output is correct
15 Execution timed out 2059 ms 22256 KB Time limit exceeded
16 Halted 0 ms 0 KB -

Subtask #4
0.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8792 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 2 ms 8796 KB Output is correct
4 Correct 2 ms 8796 KB Output is correct
5 Execution timed out 2053 ms 35100 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #5
0.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8792 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 3 ms 8796 KB Output is correct
4 Correct 2 ms 8792 KB Output is correct
5 Correct 2 ms 8796 KB Output is correct
6 Correct 3 ms 8796 KB Output is correct
7 Correct 2 ms 8796 KB Output is correct
8 Correct 3 ms 8792 KB Output is correct
9 Correct 2 ms 8796 KB Output is correct
10 Correct 2 ms 8796 KB Output is correct
11 Correct 2 ms 8796 KB Output is correct
12 Correct 2 ms 8796 KB Output is correct
13 Correct 2 ms 8796 KB Output is correct
14 Correct 2 ms 8796 KB Output is correct
15 Correct 2 ms 8796 KB Output is correct
16 Correct 2 ms 9048 KB Output is correct
17 Correct 2 ms 8792 KB Output is correct
18 Correct 2 ms 8796 KB Output is correct
19 Correct 2 ms 8796 KB Output is correct
20 Correct 2 ms 8796 KB Output is correct
21 Correct 2 ms 8796 KB Output is correct
22 Correct 2 ms 8796 KB Output is correct
23 Correct 3 ms 8796 KB Output is correct
24 Correct 2 ms 8792 KB Output is correct
25 Correct 3 ms 8796 KB Output is correct
26 Correct 2 ms 8796 KB Output is correct
27 Correct 2 ms 8796 KB Output is correct
28 Correct 2 ms 8796 KB Output is correct
29 Correct 2 ms 8796 KB Output is correct
30 Correct 2 ms 8796 KB Output is correct
31 Correct 2 ms 8796 KB Output is correct
32 Correct 2 ms 8796 KB Output is correct
33 Correct 2 ms 8796 KB Output is correct
34 Correct 2 ms 8796 KB Output is correct
35 Correct 2 ms 8796 KB Output is correct
36 Correct 2 ms 8796 KB Output is correct
37 Correct 2 ms 8796 KB Output is correct
38 Correct 2 ms 10840 KB Output is correct
39 Correct 4 ms 10844 KB Output is correct
40 Correct 2 ms 10844 KB Output is correct
41 Correct 2 ms 10844 KB Output is correct
42 Correct 3 ms 10844 KB Output is correct
43 Correct 2 ms 10844 KB Output is correct
44 Correct 3 ms 10844 KB Output is correct
45 Correct 2 ms 10840 KB Output is correct
46 Correct 2 ms 8796 KB Output is correct
47 Correct 2 ms 10844 KB Output is correct
48 Correct 3 ms 10844 KB Output is correct
49 Correct 3 ms 10848 KB Output is correct
50 Correct 2 ms 10844 KB Output is correct
51 Correct 4 ms 10844 KB Output is correct
52 Correct 3 ms 10844 KB Output is correct
53 Correct 3 ms 10844 KB Output is correct
54 Correct 2 ms 10844 KB Output is correct
55 Incorrect 3 ms 10840 KB 2nd lines differ - on the 82nd token, expected: '0', found: '1'
56 Halted 0 ms 0 KB -

Subtask #6
0.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8792 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 2 ms 8796 KB Output is correct
4 Correct 2 ms 8796 KB Output is correct
5 Correct 2 ms 8796 KB Output is correct
6 Correct 2 ms 8796 KB Output is correct
7 Correct 2 ms 8796 KB Output is correct
8 Correct 2 ms 8796 KB Output is correct
9 Correct 2 ms 9048 KB Output is correct
10 Correct 2 ms 8792 KB Output is correct
11 Correct 2 ms 8796 KB Output is correct
12 Correct 2 ms 8796 KB Output is correct
13 Correct 2 ms 8796 KB Output is correct
14 Correct 2 ms 8796 KB Output is correct
15 Correct 2 ms 8796 KB Output is correct
16 Correct 3 ms 8796 KB Output is correct
17 Correct 2 ms 8792 KB Output is correct
18 Correct 3 ms 8796 KB Output is correct
19 Correct 2 ms 8796 KB Output is correct
20 Correct 2 ms 8796 KB Output is correct
21 Correct 2 ms 8796 KB Output is correct
22 Correct 2 ms 8796 KB Output is correct
23 Correct 2 ms 8796 KB Output is correct
24 Correct 2 ms 8796 KB Output is correct
25 Correct 17 ms 23132 KB Output is correct
26 Correct 16 ms 23128 KB Output is correct
27 Correct 39 ms 23244 KB Output is correct
28 Correct 83 ms 23128 KB Output is correct
29 Correct 21 ms 23128 KB Output is correct
30 Correct 73 ms 23380 KB Output is correct
31 Correct 16 ms 23132 KB Output is correct
32 Incorrect 24 ms 23132 KB 2nd lines differ - on the 802nd token, expected: '0', found: '1'
33 Halted 0 ms 0 KB -

Subtask #7
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8792 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 3 ms 8796 KB Output is correct
4 Correct 2 ms 8792 KB Output is correct
5 Correct 2 ms 8796 KB Output is correct
6 Correct 3 ms 8796 KB Output is correct
7 Correct 2 ms 8796 KB Output is correct
8 Correct 3 ms 8792 KB Output is correct
9 Correct 2 ms 8796 KB Output is correct
10 Correct 2 ms 8796 KB Output is correct
11 Correct 2 ms 8796 KB Output is correct
12 Correct 2 ms 8796 KB Output is correct
13 Correct 2 ms 8796 KB Output is correct
14 Correct 2 ms 8796 KB Output is correct
15 Correct 2 ms 8796 KB Output is correct
16 Correct 2 ms 9048 KB Output is correct
17 Correct 2 ms 8792 KB Output is correct
18 Correct 2 ms 8796 KB Output is correct
19 Correct 2 ms 8796 KB Output is correct
20 Correct 2 ms 8796 KB Output is correct
21 Correct 2 ms 8796 KB Output is correct
22 Correct 2 ms 8796 KB Output is correct
23 Correct 3 ms 8796 KB Output is correct
24 Correct 2 ms 8792 KB Output is correct
25 Correct 3 ms 8796 KB Output is correct
26 Correct 2 ms 8796 KB Output is correct
27 Correct 2 ms 8796 KB Output is correct
28 Correct 2 ms 8796 KB Output is correct
29 Correct 2 ms 8796 KB Output is correct
30 Correct 2 ms 8796 KB Output is correct
31 Correct 2 ms 8796 KB Output is correct
32 Correct 2 ms 8796 KB Output is correct
33 Correct 2 ms 8796 KB Output is correct
34 Correct 2 ms 8796 KB Output is correct
35 Correct 2 ms 8796 KB Output is correct
36 Correct 2 ms 8796 KB Output is correct
37 Correct 2 ms 8796 KB Output is correct
38 Correct 3 ms 10844 KB Output is correct
39 Correct 3 ms 10848 KB Output is correct
40 Correct 2 ms 10844 KB Output is correct
41 Correct 4 ms 10844 KB Output is correct
42 Correct 2 ms 10840 KB Output is correct
43 Correct 4 ms 10844 KB Output is correct
44 Correct 2 ms 10844 KB Output is correct
45 Correct 2 ms 10844 KB Output is correct
46 Correct 3 ms 10844 KB Output is correct
47 Correct 2 ms 10844 KB Output is correct
48 Correct 3 ms 10844 KB Output is correct
49 Correct 2 ms 10840 KB Output is correct
50 Correct 2 ms 8796 KB Output is correct
51 Correct 2 ms 10844 KB Output is correct
52 Correct 7 ms 19036 KB Output is correct
53 Correct 6 ms 16984 KB Output is correct
54 Correct 8 ms 16984 KB Output is correct
55 Correct 6 ms 16988 KB Output is correct
56 Correct 3 ms 10844 KB Output is correct
57 Correct 3 ms 10844 KB Output is correct
58 Correct 2 ms 10844 KB Output is correct
59 Incorrect 3 ms 10840 KB 2nd lines differ - on the 82nd token, expected: '0', found: '1'
60 Halted 0 ms 0 KB -

Subtask #8
0.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8792 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 2 ms 8796 KB Output is correct
4 Correct 2 ms 8796 KB Output is correct
5 Correct 2 ms 8796 KB Output is correct
6 Correct 2 ms 8796 KB Output is correct
7 Correct 2 ms 8796 KB Output is correct
8 Correct 2 ms 8796 KB Output is correct
9 Correct 2 ms 9048 KB Output is correct
10 Correct 2 ms 8792 KB Output is correct
11 Correct 2 ms 8796 KB Output is correct
12 Correct 2 ms 8796 KB Output is correct
13 Correct 2 ms 8796 KB Output is correct
14 Correct 2 ms 8796 KB Output is correct
15 Correct 2 ms 8796 KB Output is correct
16 Correct 3 ms 8796 KB Output is correct
17 Correct 2 ms 8792 KB Output is correct
18 Correct 3 ms 8796 KB Output is correct
19 Correct 2 ms 8796 KB Output is correct
20 Correct 2 ms 8796 KB Output is correct
21 Correct 2 ms 8796 KB Output is correct
22 Correct 2 ms 8796 KB Output is correct
23 Correct 2 ms 8796 KB Output is correct
24 Correct 2 ms 8796 KB Output is correct
25 Correct 17 ms 23132 KB Output is correct
26 Correct 16 ms 23128 KB Output is correct
27 Correct 39 ms 23244 KB Output is correct
28 Correct 83 ms 23128 KB Output is correct
29 Correct 21 ms 23128 KB Output is correct
30 Correct 73 ms 23380 KB Output is correct
31 Correct 16 ms 23132 KB Output is correct
32 Incorrect 24 ms 23132 KB 2nd lines differ - on the 802nd token, expected: '0', found: '1'
33 Halted 0 ms 0 KB -

Subtask #9
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8792 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 3 ms 8796 KB Output is correct
4 Correct 2 ms 8792 KB Output is correct
5 Correct 2 ms 8796 KB Output is correct
6 Correct 3 ms 8796 KB Output is correct
7 Correct 2 ms 8796 KB Output is correct
8 Correct 3 ms 8792 KB Output is correct
9 Correct 2 ms 8796 KB Output is correct
10 Correct 2 ms 8796 KB Output is correct
11 Correct 2 ms 8796 KB Output is correct
12 Correct 2 ms 8796 KB Output is correct
13 Correct 2 ms 8796 KB Output is correct
14 Correct 2 ms 8796 KB Output is correct
15 Correct 2 ms 8796 KB Output is correct
16 Correct 2 ms 9048 KB Output is correct
17 Correct 2 ms 8792 KB Output is correct
18 Correct 2 ms 8796 KB Output is correct
19 Correct 2 ms 8796 KB Output is correct
20 Correct 2 ms 8796 KB Output is correct
21 Correct 2 ms 8796 KB Output is correct
22 Correct 2 ms 8796 KB Output is correct
23 Correct 3 ms 8796 KB Output is correct
24 Correct 2 ms 8792 KB Output is correct
25 Correct 3 ms 8796 KB Output is correct
26 Correct 2 ms 8796 KB Output is correct
27 Correct 2 ms 8796 KB Output is correct
28 Correct 2 ms 8796 KB Output is correct
29 Correct 2 ms 8796 KB Output is correct
30 Correct 2 ms 8796 KB Output is correct
31 Correct 2 ms 8796 KB Output is correct
32 Correct 2 ms 8796 KB Output is correct
33 Correct 2 ms 8796 KB Output is correct
34 Correct 2 ms 8796 KB Output is correct
35 Correct 2 ms 8796 KB Output is correct
36 Correct 2 ms 8796 KB Output is correct
37 Correct 2 ms 8796 KB Output is correct
38 Execution timed out 2053 ms 35100 KB Time limit exceeded
39 Halted 0 ms 0 KB -