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Submission #960986

# Submission time Handle Problem Language Result Execution time Memory
960986 2024-04-11T10:35:06 Z Pety Hiperkocka (COCI21_hiperkocka) C++14
110 / 110
 45 ms 3716 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
const int N = 1e6+2;
const int mod = 1e9 + 7;

int n;
vector<pair<int, int>>G[20];
int ans[20];

void dfs (int nod, int val, int par) {
  ans[nod] = val;
  for (auto it : G[nod]) {
    if (it.first == par) continue;
    dfs(it.first, val ^ (1 << it.second), nod);
  }
}

int main () 
{
  ios_base::sync_with_stdio(false);
  cin.tie(0); cout.tie(0);
  cin >> n;
  for (int i = 0; i < n; i++) {
    int x, y;
    cin >> x >> y;
    G[x].push_back({y, i});
    G[y].push_back({x, i});
  }
  dfs(0, 0, 0);
  cout << (1 << (n - 1)) << "\n";
  for (int i = 0; i < (1 << n); i++)
    if (__builtin_popcount(i) % 2 == 0) {
      for (int j = 0; j <= n; j++)
        cout << (i ^ ans[j]) << " ";
      cout << "\n";
    }
  return 0;
}

Subtask #1
110.0 / 110.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 368 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 452 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 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 1 ms 348 KB Output is correct
9 Correct 45 ms 3520 KB Output is correct
10 Correct 5 ms 604 KB Output is correct
11 Correct 7 ms 1116 KB Output is correct
12 Correct 34 ms 3716 KB Output is correct
13 Correct 2 ms 348 KB Output is correct
14 Correct 35 ms 3540 KB Output is correct
15 Correct 15 ms 1884 KB Output is correct
16 Correct 7 ms 1116 KB Output is correct
17 Correct 33 ms 3668 KB Output is correct
18 Correct 34 ms 3556 KB Output is correct
19 Correct 31 ms 3668 KB Output is correct
20 Correct 32 ms 3712 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 32 ms 3624 KB Output is correct
23 Correct 38 ms 3696 KB Output is correct
24 Correct 40 ms 3680 KB Output is correct
25 Correct 32 ms 3564 KB Output is correct
26 Correct 21 ms 2128 KB Output is correct