Submission #496635

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
496635	2021-12-21T17:21:07 Z	JovanB	Hiperkocka (COCI21_hiperkocka)	C++17	110 / 110	56 ms	5964 KB

Main

#include <bits/stdc++.h>
using namespace std;

using ll = long long;
using ld = long double;

const int N = 17;

int gde[(1<<N)][N+1];

vector <int> ord, parent;
vector <int> graf[N+1];

void dfs(int v, int p){
    ord.push_back(v);
    parent.push_back(p);
    for(auto c : graf[v]){
        if(c != p) dfs(c, v);
    }
}

bool taken[(1<<N)];

vector <int> vc;

void dupliraj(int n, int v, int p){
    vc.push_back(v);
    for(int i=0; i<n; i++){
        gde[i][v] = gde[i][p] + 2*n;
        taken[gde[i][v]] = 1;
    }
    int k = 2*n;
    for(int i=0; i<n; i++){
        while(taken[k]) k++;
        int xr = k^gde[i][p];
        for(int j=0; j<vc.size(); j++){
            gde[i + n][vc[j]] = gde[i][vc[j]] ^ xr;
        }
        taken[k] = 1;
    }
}

int main(){
    ios_base::sync_with_stdio(false), cin.tie(0);
    cout.precision(10);
    cout << fixed;

    int n;
    cin >> n;
    for(int i=1; i<=n; i++){
        int a, b;
        cin >> a >> b;
        graf[a].push_back(b);
        graf[b].push_back(a);
    }
    dfs(0, -1);
    reverse(ord.begin(), ord.end());
    reverse(parent.begin(), parent.end());
    ord.pop_back();
    parent.pop_back();
    gde[0][0] = 0;
    gde[0][ord.back()] = 1;
    vc.push_back(0);
    vc.push_back(ord.back());
    ord.pop_back();
    parent.pop_back();
    int tren = 1;
    while(ord.size()){
        dupliraj(tren, ord.back(), parent.back());
        tren *= 2;
        ord.pop_back();
        parent.pop_back();
    }
    cout << (1<<(n-1)) << "\n";
    for(int i=0; i<(1<<(n-1)); i++){
        for(int j=0; j<=n; j++){
            cout << gde[i][j] << " ";
        }
        cout << "\n";
    }
    return 0;
}

Compilation message

Main.cpp: In function 'void dupliraj(int, int, int)':
Main.cpp:36:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |         for(int j=0; j<vc.size(); j++){
      |                      ~^~~~~~~~~~

Subtask #1

110.0 / 110.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	324 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	324 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	44 ms	5856 KB	Output is correct
10	Correct	5 ms	844 KB	Output is correct
11	Correct	11 ms	1576 KB	Output is correct
12	Correct	47 ms	5888 KB	Output is correct
13	Correct	1 ms	460 KB	Output is correct
14	Correct	45 ms	5880 KB	Output is correct
15	Correct	21 ms	2880 KB	Output is correct
16	Correct	10 ms	1484 KB	Output is correct
17	Correct	47 ms	5860 KB	Output is correct
18	Correct	47 ms	5956 KB	Output is correct
19	Correct	46 ms	5952 KB	Output is correct
20	Correct	45 ms	5956 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	45 ms	5932 KB	Output is correct
23	Correct	47 ms	5964 KB	Output is correct
24	Correct	45 ms	5916 KB	Output is correct
25	Correct	56 ms	5964 KB	Output is correct
26	Correct	22 ms	3004 KB	Output is correct