oj.uz

Submission #733666

# Submission time Handle Problem Language Result Execution time Memory
733666 2023-05-01T07:27:40 Z tigar Connecting Supertrees (IOI20_supertrees) C++14
21 / 100
 1000 ms 1252896 KB 
#include <bits/stdc++.h>
#include "supertrees.h"

using namespace std;

typedef long long ll;
vector<int> jedan[1010], dva[1010];
bool check[1010];
vector<int>lin;
vector<int>cc[1010];

bool provera(int x, std::vector<std::vector<int>>p, int cmp)
{
    lin.push_back(x);
    cc[cmp].push_back(x);
    int n=p.size();
    for(int i=0; i<jedan[x].size(); i++)
    {
        if(check[jedan[x][i]])continue;
        check[jedan[x][i]]=true;
        for(int j=0; j<n; j++)
        {
            if(p[jedan[x][i]][j]!=p[x][j])return false;
        }
    }
    for(int i=0; i<dva[x].size(); i++)
    {
        if(check[dva[x][i]])continue;
        check[dva[x][i]]=true;
        for(int j=0; j<n; j++)
        {
            if(p[dva[x][i]][j]!=0 and p[x][j]==0)return false;
            if(p[dva[x][i]][j]==0 and p[x][j]!=0)return false;
        }
        if(!provera(dva[x][i], p, cmp))return false;
    }
    return true;
}

int construct(std::vector<std::vector<int>>p)
{
    int n=p.size();
    for(int i=0; i<n; i++)
    {
        for(int j=0; j<n; j++)
        {
            if(p[i][j]==1)jedan[i].push_back(j);
            else if(p[i][j]==2)dva[i].push_back(j);
            else if(p[i][j]==3)return 0;
        }
    }
    int br=1;
    for(int i=0; i<n; i++)
    {
        if(check[i])continue;
        if(!provera(i, p, br))return 0;
        br++;
    }

    vector<vector<int> > ans(n);
    for(int i=0; i<n; i++){ans[i].resize(n, 0);}
    for(int i=0; i<lin.size(); i++)
    {
        for(int j=1; j<jedan[lin[i]].size(); j++)
        {
            ans[jedan[lin[i]][j]][jedan[lin[i]][j-1]]=1;
            ans[jedan[lin[i]][j-1]][jedan[lin[i]][j]]=1;
        }
    }

    for(int i=1; i<br; i++)
    {
        for(int j=0; j<cc[i].size(); j++)
        {
            //cout<<cc[i][j]<<" ";
            if(cc[i].size()==2)return 0;
            ans[cc[i][j]][cc[i][j+1%cc[i].size()]]=1;
            ans[cc[i][j+1%cc[i].size()]][cc[i][j]]=1;
        }
        //cout<<endl;
    }
    for(int i=0; i<n; i++)
    {
        ans[i][i]=0;
    }
    //for(int i=0; i<n; i++){for(int j=0; j<n; j++)cout<<ans[i][j]<<" "; cout<<endl;}
    build(ans);
    return 1;
}

/*int main()
{
    int n; cin>>n;
    vector<vector<int> >p;
    for(int i=0; i<n; i++)
    {
        vector<int>pp(n);
        for(int j=0; j<n; j++)
        {
            cin>>pp[j];
        }
        p.push_back(pp);
    }
    cout<<construct(p);
}*/

Compilation message

supertrees.cpp: In function 'bool provera(int, std::vector<std::vector<int> >, int)':
supertrees.cpp:17:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     for(int i=0; i<jedan[x].size(); i++)
      |                  ~^~~~~~~~~~~~~~~~
supertrees.cpp:26:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |     for(int i=0; i<dva[x].size(); i++)
      |                  ~^~~~~~~~~~~~~~
supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:62:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |     for(int i=0; i<lin.size(); i++)
      |                  ~^~~~~~~~~~~
supertrees.cpp:64:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   64 |         for(int j=1; j<jedan[lin[i]].size(); j++)
      |                      ~^~~~~~~~~~~~~~~~~~~~~
supertrees.cpp:73:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |         for(int j=0; j<cc[i].size(); j++)
      |                      ~^~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 8 ms 1468 KB Output is correct
7 Correct 164 ms 26072 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 8 ms 1468 KB Output is correct
7 Correct 164 ms 26072 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 11 ms 1328 KB Output is correct
13 Correct 705 ms 22640 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 4 ms 980 KB Output is correct
17 Correct 83 ms 15208 KB Output is correct
18 Correct 1 ms 372 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 47 ms 6248 KB Output is correct
21 Correct 178 ms 23176 KB Output is correct
22 Correct 359 ms 22592 KB Output is correct
23 Correct 182 ms 24756 KB Output is correct
24 Correct 612 ms 22792 KB Output is correct
25 Correct 81 ms 13200 KB Output is correct
26 Correct 80 ms 12776 KB Output is correct
27 Correct 189 ms 25784 KB Output is correct
28 Correct 706 ms 22632 KB Output is correct

Subtask #3
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 14 ms 1336 KB Output is correct
9 Correct 596 ms 24072 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 23 ms 33764 KB Output is correct
13 Execution timed out 1117 ms 1252896 KB Time limit exceeded
14 Halted 0 ms 0 KB -

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 372 KB Output is correct
3 Correct 1 ms 372 KB Output is correct
4 Correct 50 ms 6352 KB Output is correct
5 Correct 188 ms 24592 KB Output is correct
6 Correct 362 ms 24084 KB Output is correct
7 Correct 182 ms 26068 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Incorrect 160 ms 30728 KB Too many ways to get from 0 to 436, should be 0 found no less than 1
10 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 8 ms 1468 KB Output is correct
7 Correct 164 ms 26072 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 11 ms 1328 KB Output is correct
13 Correct 705 ms 22640 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 4 ms 980 KB Output is correct
17 Correct 83 ms 15208 KB Output is correct
18 Correct 1 ms 372 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 47 ms 6248 KB Output is correct
21 Correct 178 ms 23176 KB Output is correct
22 Correct 359 ms 22592 KB Output is correct
23 Correct 182 ms 24756 KB Output is correct
24 Correct 612 ms 22792 KB Output is correct
25 Correct 81 ms 13200 KB Output is correct
26 Correct 80 ms 12776 KB Output is correct
27 Correct 189 ms 25784 KB Output is correct
28 Correct 706 ms 22632 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 14 ms 1336 KB Output is correct
37 Correct 596 ms 24072 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 23 ms 33764 KB Output is correct
41 Execution timed out 1117 ms 1252896 KB Time limit exceeded
42 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 8 ms 1468 KB Output is correct
7 Correct 164 ms 26072 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 11 ms 1328 KB Output is correct
13 Correct 705 ms 22640 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 4 ms 980 KB Output is correct
17 Correct 83 ms 15208 KB Output is correct
18 Correct 1 ms 372 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 47 ms 6248 KB Output is correct
21 Correct 178 ms 23176 KB Output is correct
22 Correct 359 ms 22592 KB Output is correct
23 Correct 182 ms 24756 KB Output is correct
24 Correct 612 ms 22792 KB Output is correct
25 Correct 81 ms 13200 KB Output is correct
26 Correct 80 ms 12776 KB Output is correct
27 Correct 189 ms 25784 KB Output is correct
28 Correct 706 ms 22632 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 14 ms 1336 KB Output is correct
37 Correct 596 ms 24072 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 23 ms 33764 KB Output is correct
41 Execution timed out 1117 ms 1252896 KB Time limit exceeded
42 Halted 0 ms 0 KB -