oj.uz

Submission #1076562

# Submission time Handle Problem Language Result Execution time Memory
1076562 2024-08-26T14:44:46 Z anango Beech Tree (IOI23_beechtree) C++17
9 / 100
 203 ms 88160 KB 
#include "beechtree.h"
#include <bits/stdc++.h>
using namespace std;
#define int long long


void prmap(map<int,int> mp) {
    for (auto i:mp) {
        cout << i.first <<":"<<i.second<<", ";
    }
    cout << endl;
}

std::vector<signed> beechtree(signed N, signed M, std::vector<signed> P, std::vector<signed> C) {
    int n=N; int m=M;
    //if any vertex has 2 children with same color then it jambloats
    //also any vertex must be before its child in ordering since if ind[parent]>ind[child] then there are
    //ind[parent]-1 edges considered for child contradiction hyperbloat
    //also consider in the order of a permutation, for each color, it starts being on and turns off at some point
    //in the edges leading from a node to its children
    //thus consider the vertices which have each color in children, and make an ordering
    //if the ordering is consistent, hope it works
    //insufficient
    //increasing order of subtree size?
    //add condition that if color of par[x]->x and color of par[y]->y are the same, put from the par with larger subtree into par with smaller subtree
    //this also deals with the 2 children same color thing
    
    vector<int> subsize(n,1);
    vector<vector<int>> subtree(n);
    vector<vector<int>> sons(n);
    for (int i=0; i<n; i++) subtree[i] = {i};
    int subtask2 = 1;
    int subtask4 = 0;
    map<int,int> freq;
    for (int i=0; i<n; i++) {
        freq[C[i]]++;
    }
    int ma = -1;
    for (auto i:freq) ma=max(ma,i.second);
    if (ma<=2) {
        subtask4=1;
    }
    for (int i=1; i<n; i++) {
        if (P[i]!=i-1) subtask2=0;
    }
    
    for (int i=n-1; i>=1; i--) {
        subsize[P[i]]+=subsize[i];
        for (int j:subtree[i]) {
            subtree[P[i]].push_back(j);
            if (subtask4 && subtree[P[i]].size()>20) {
                break;
            }
        }
        sons[P[i]].push_back(i);
    }
    vector<int> ans(n,1);
    for (int root=0; root<n; root++) {
        if (subsize[root]>=15) {
            ans[root] = 0;
            continue;
        }
        vector<int> relevant=subtree[root];
        map<int,int> revcoords;
        for (int j=0; j<relevant.size(); j++) {
            revcoords[relevant[j]] = j;
        }
        /*vector<vector<int>> adjlist(relevant.size());
        vector<vector<int>> sonsv2(relevant.size());
        for (int i:relevant) {
            for (int j:sons[i]) {
                adjlist[revcoords[i]].push_back(revcoords[j]);
                sonsv2[revcoords[i]].push_back(revcoords[j]);
            }
        }
        for (int j=1; j<dep1.size(); j++) {
            if (subsize[relevant[dep1[j-1]]]<subsize[relevant[dep1[j]]]) {
                adjlist[dep1[j]].push_back(dep1[j-1]);
            }
        }
        map<int,vector<int>> revcols;
        for (int i:relevant) {
            if (i!=root) {
                revcols[C[i]].push_back(revcoords[i]);
            }
        }
        for (auto i:revcols) {
            vector<int> dep1 = i.second;
            sort(dep1.begin(), dep1.end(), [&](const int i1, const int i2) {
                return subsize[relevant[i1]]<subsize[relevant[i2]]
            });
            for (int j=1; j<dep1.size(); j++) {
                if (subsize[relevant[dep1[j-1]]]<subsize[relevant[dep1[j]]]) {
                    adjlist[dep1[j]].push_back(dep1[j-1]);
                }
            }
        }*/
       
        vector<int> dep1; for (int i=0; i<relevant.size(); i++) dep1.push_back(i);
        sort(dep1.begin(), dep1.end(), [&](const int i1, const int i2) {
            return subsize[relevant[i1]]<subsize[relevant[i2]];
        });
        reverse(dep1.begin(), dep1.end());
        map<int,int> colors;
        int fail = 0;
        for (int i=0; i<dep1.size(); i++) {
            int node = dep1[i];
            set<int> subbers;
            map<int,int> colors2;
            for (int j:sons[relevant[node]]) {
                subbers.insert(C[j]);
                if (i>0 && colors[C[j]]<subsize[j]) {
                    fail=1;
                }
                colors2[C[j]] = subsize[j];
            }
            colors=colors2;
            if (subbers.size()<sons[relevant[node]].size()) {
                fail=1;
            }
            //cout << "DOING " << root <<" " << i << " " << node << endl;
            //prmap(colors);
        }
        ans[root] = 1-fail;
        
    }
    vector<signed> ans2(ans.begin(), ans.end());
    return ans2;
}

Compilation message

beechtree.cpp: In function 'std::vector<int> beechtree(int, int, std::vector<int>, std::vector<int>)':
beechtree.cpp:65:24: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |         for (int j=0; j<relevant.size(); j++) {
      |                       ~^~~~~~~~~~~~~~~~
beechtree.cpp:99:42: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   99 |         vector<int> dep1; for (int i=0; i<relevant.size(); i++) dep1.push_back(i);
      |                                         ~^~~~~~~~~~~~~~~~
beechtree.cpp:106:24: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  106 |         for (int i=0; i<dep1.size(); i++) {
      |                       ~^~~~~~~~~~~~
beechtree.cpp:15:18: warning: unused variable 'm' [-Wunused-variable]
   15 |     int n=N; int m=M;
      |                  ^
beechtree.cpp:32:9: warning: variable 'subtask2' set but not used [-Wunused-but-set-variable]
   32 |     int subtask2 = 1;
      |         ^~~~~~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 440 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 600 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct

Subtask #2
0.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 203 ms 88160 KB Output is correct
8 Correct 166 ms 84912 KB Output is correct
9 Incorrect 1 ms 604 KB 2nd lines differ - on the 1st token, expected: '1', found: '0'
10 Halted 0 ms 0 KB -

Subtask #3
0.0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB 2nd lines differ - on the 4th token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #4
0.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 203 ms 88160 KB Output is correct
6 Correct 166 ms 84912 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Incorrect 1 ms 348 KB 2nd lines differ - on the 47th token, expected: '1', found: '0'
9 Halted 0 ms 0 KB -

Subtask #5
0.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 440 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 600 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Incorrect 1 ms 604 KB 2nd lines differ - on the 1st token, expected: '1', found: '0'
39 Halted 0 ms 0 KB -

Subtask #6
0.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Incorrect 13 ms 20596 KB 2nd lines differ - on the 1st token, expected: '1', found: '0'
26 Halted 0 ms 0 KB -

Subtask #7
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 440 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 600 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Incorrect 1 ms 604 KB 2nd lines differ - on the 1st token, expected: '1', found: '0'
39 Halted 0 ms 0 KB -

Subtask #8
0.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Incorrect 13 ms 20596 KB 2nd lines differ - on the 1st token, expected: '1', found: '0'
26 Halted 0 ms 0 KB -

Subtask #9
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 440 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 600 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 203 ms 88160 KB Output is correct
39 Correct 166 ms 84912 KB Output is correct
40 Incorrect 1 ms 604 KB 2nd lines differ - on the 1st token, expected: '1', found: '0'
41 Halted 0 ms 0 KB -