oj.uz

Submission #866212

# Submission time Handle Problem Language Result Execution time Memory
866212 2023-10-25T15:28:28 Z lolismek Connecting Supertrees (IOI20_supertrees) C++14
46 / 100
 172 ms 22388 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(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 344 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 138 ms 22256 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 138 ms 22256 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 0 ms 348 KB Output is correct
12 Correct 6 ms 1368 KB Output is correct
13 Correct 137 ms 22076 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 #3
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 6 ms 1372 KB Output is correct
9 Correct 135 ms 22076 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 141 ms 22136 KB Output is correct
14 Incorrect 0 ms 348 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 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 34 ms 5760 KB Output is correct
5 Correct 139 ms 22064 KB Output is correct
6 Correct 172 ms 22388 KB Output is correct
7 Correct 145 ms 22096 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 35 ms 5816 KB Output is correct
10 Correct 149 ms 22068 KB Output is correct
11 Correct 140 ms 22076 KB Output is correct
12 Correct 144 ms 22096 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 348 KB Output is correct
16 Correct 35 ms 5980 KB Output is correct
17 Correct 142 ms 22052 KB Output is correct
18 Correct 140 ms 22100 KB Output is correct
19 Correct 137 ms 22068 KB Output is correct
20 Correct 143 ms 22108 KB Output is correct

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 138 ms 22256 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 0 ms 348 KB Output is correct
12 Correct 6 ms 1368 KB Output is correct
13 Correct 137 ms 22076 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 #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 138 ms 22256 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 0 ms 348 KB Output is correct
12 Correct 6 ms 1368 KB Output is correct
13 Correct 137 ms 22076 KB Output is correct
14 Incorrect 0 ms 344 KB Answer gives possible 1 while actual possible 0
15 Halted 0 ms 0 KB -