oj.uz

Submission #1087035

# Submission time Handle Problem Language Result Execution time Memory
1087035 2024-09-12T05:53:42 Z SulA Connecting Supertrees (IOI20_supertrees) C++17
11 / 100
 128 ms 32292 KB 
#include "supertrees.h"
#include <iostream>
#include <vector>

using namespace std;

vector<int> adj[1000], comp;
bool visited[1000];

void dfs(int u) {
    comp.push_back(u);
    visited[u] = -true;
    for (int v: adj[u]) if (!visited[v]) {
        dfs(v);
    }
}

int construct(vector<vector<int>> p) {
	int n = p.size(), mx = 0;
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            mx = max(mx, p[i][j]);
            if (p[i][j] != 0) {
                adj[i].push_back(j);
                adj[j].push_back(i);
            }
        }
    }
    vector<vector<int>> adj(n, vector<int>(n, 0));
    for (int i = 0; i < n; i++) if (!visited[i]) {
        comp.clear();
        dfs(i);
        for (int j = 0; j < comp.size() - 1; j++) {
            adj[ comp[j] ][ comp[j+1] ] = adj[ comp[j+1] ][ comp[j] ] = 1;
        }
        if (mx == 2) {
            if (comp.size() < 3) return 0;
            adj[comp.front()][comp.back()] = adj[comp.back()][comp.front()] = 1;
        }
    }
    build(adj);
	return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:33:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |         for (int j = 0; j < comp.size() - 1; j++) {
      |                         ~~^~~~~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# 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 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1628 KB Output is correct
7 Correct 122 ms 32292 KB Output is correct

Subtask #2
0 / 10.0

# 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 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1628 KB Output is correct
7 Correct 122 ms 32292 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 0 ms 460 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1372 KB Output is correct
13 Correct 113 ms 24148 KB Output is correct
14 Incorrect 1 ms 348 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 460 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 408 KB Output is correct
8 Correct 9 ms 1240 KB Output is correct
9 Correct 114 ms 24188 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 10 ms 1624 KB Output is correct
13 Correct 128 ms 32080 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
0 / 35.0

# 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 29 ms 6424 KB Output is correct
5 Correct 121 ms 25172 KB Output is correct
6 Correct 117 ms 24148 KB Output is correct
7 Correct 125 ms 28176 KB Output is correct
8 Incorrect 1 ms 348 KB Answer gives possible 0 while actual possible 1
9 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# 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 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1628 KB Output is correct
7 Correct 122 ms 32292 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 0 ms 460 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1372 KB Output is correct
13 Correct 113 ms 24148 KB Output is correct
14 Incorrect 1 ms 348 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 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 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1628 KB Output is correct
7 Correct 122 ms 32292 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 0 ms 460 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1372 KB Output is correct
13 Correct 113 ms 24148 KB Output is correct
14 Incorrect 1 ms 348 KB Answer gives possible 1 while actual possible 0
15 Halted 0 ms 0 KB -