oj.uz

Submission #866218

# Submission time Handle Problem Language Result Execution time Memory
866218 2023-10-25T15:31:16 Z lolismek Connecting Supertrees (IOI20_supertrees) C++14
46 / 100
 173 ms 22336 KB 
#include "supertrees.h"
#include <vector>

using namespace std;

const int NMAX = 1000;

vector <int> adj[NMAX + 1];

int par[NMAX + 1];

int Find(int x){
    if(x == par[x]){
        return x;
    }
    return par[x] = Find(par[x]);
}

void Unite(int i, int j){
    i = Find(i);
    j = Find(j);
    par[i] = j;
}

int rep[NMAX + 1];

vector <int> gr[NMAX + 1];

int construct(vector<vector<int>> p) {
	int n = p.size();

    for(int i = 0; i < n; i++){
        par[i] = i;
    }

    for(int i = 0; i < n; i++){
        for(int j = 0; j < n; j++){
            if(i != j && p[i][j] == 1 && Find(i) != Find(j)){
                adj[i].push_back(j);
                adj[j].push_back(i);
                Unite(i, j);
            }else if(p[i][j] == 3){
                return 0;
            }
        }
    }

    for(int i = 0; i < n; i++){
        rep[i] = par[i];
        par[i] = i;
    }

    for(int i = 0; i < n; i++){
        for(int j = 0; j < n; j++){
            if(rep[i] == rep[j] && p[i][j] == 0){
                return 0;
            }
        }
    }

    for(int i = 0; i < n; i++){
        for(int j = 0; j < n; j++){
            if(p[i][j] == 2){
                if(rep[i] == rep[j]){
                    return 0;
                }
                Unite(rep[i], rep[j]);
            }
        }
    }

    for(int i = 0; i < n; i++){
        gr[Find(i)].push_back(i);
    }

    for(int i = 0; i < n; i++){
        if((int)gr[i].size() >= 3){
            for(int j = 1; j < (int)gr[i].size(); j++){
                adj[gr[i][j]].push_back(gr[i][j - 1]);
                adj[gr[i][j - 1]].push_back(gr[i][j]);
            }
            adj[gr[i].back()].push_back(gr[i][0]);
            adj[gr[i][0]].push_back(gr[i].back());
        }else{
            if((int)gr[i].size() == 2){
                return 0;
            }
        }
    }

    vector <vector <int>> ans(n, vector <int> (n, 0));
    for(int i = 0; i < n; i++){
        for(int x : adj[i]){
            ans[i][x] = 1;
        }
    }

    build(ans);
	return 1;
}

/*
5
1 1 1 2 2
1 1 1 2 2
1 1 1 2 2
2 2 2 1 2
2 2 2 2 1
*/

Subtask #1
11.0 / 11.0

# 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 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1372 KB Output is correct
7 Correct 147 ms 22096 KB Output is correct

Subtask #2
0 / 10.0

# 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 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1372 KB Output is correct
7 Correct 147 ms 22096 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 6 ms 1372 KB Output is correct
13 Correct 157 ms 22080 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 716 KB Output is correct
17 Correct 86 ms 10156 KB Output is correct
18 Incorrect 0 ms 348 KB Answer gives possible 1 while actual possible 0
19 Halted 0 ms 0 KB -

Subtask #3
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 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 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 6 ms 1372 KB Output is correct
9 Correct 153 ms 22336 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 6 ms 1372 KB Output is correct
13 Correct 150 ms 22196 KB Output is correct
14 Incorrect 0 ms 344 KB Answer gives possible 1 while actual possible 0
15 Halted 0 ms 0 KB -

Subtask #4
35.0 / 35.0

# 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 38 ms 5980 KB Output is correct
5 Correct 147 ms 22072 KB Output is correct
6 Correct 152 ms 22096 KB Output is correct
7 Correct 155 ms 22080 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 43 ms 5908 KB Output is correct
10 Correct 150 ms 22168 KB Output is correct
11 Correct 149 ms 22080 KB Output is correct
12 Correct 173 ms 22064 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 37 ms 5792 KB Output is correct
17 Correct 149 ms 22068 KB Output is correct
18 Correct 148 ms 22212 KB Output is correct
19 Correct 142 ms 22100 KB Output is correct
20 Correct 149 ms 22100 KB Output is correct

Subtask #5
0 / 21.0

# 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 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1372 KB Output is correct
7 Correct 147 ms 22096 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 6 ms 1372 KB Output is correct
13 Correct 157 ms 22080 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 716 KB Output is correct
17 Correct 86 ms 10156 KB Output is correct
18 Incorrect 0 ms 348 KB Answer gives possible 1 while actual possible 0
19 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# 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 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1372 KB Output is correct
7 Correct 147 ms 22096 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 6 ms 1372 KB Output is correct
13 Correct 157 ms 22080 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 716 KB Output is correct
17 Correct 86 ms 10156 KB Output is correct
18 Incorrect 0 ms 348 KB Answer gives possible 1 while actual possible 0
19 Halted 0 ms 0 KB -