Submission #529654

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
529654	2022-02-23T10:02:33 Z	topovik	Hiperkocka (COCI21_hiperkocka)	C++14	0 / 110	1000 ms	44736 KB

Main

#include <bits/stdc++.h>
#define pb push_back
#define f first
#define s second

using namespace std;

typedef long long ll;
typedef long double ld;

const ll oo = 1e18 + 7;

const int N = 5e5 + 10;
const int M = 10000;
const int M1 = 1e6;

int n;
map <int, bool> mrk[N];
vector <int> a[N];
vector <int> ans;
vector <vector <int> > ans1;
vector <pair<int, int> > vc;
bool g = 1;

bool check(int x)
{
    for (int i = 0; i < n; i++)
        if (x == (1 << i)) return 1;
    return 0;
}

void Rec(int x, int y, int prv)
{
    ans1.back()[y] = x;
    for (auto i : a[y])
        if (i != prv)
    {
        int j;
        for (j = 0; j < (1 << n); (j == 0 ? j++ : j <<= 1))
            if (!mrk[min(x, j ^ x)][max(j ^ x, x)] && (j ^ x) != x)
        {
            mrk[min(x, j ^ x)][max(j ^ x, x)] = 1;
            vc.pb({min(x, j ^ x), max(j ^ x, x)});
            Rec(j ^ x, i, y);
            break;
        }
        g &= (j != (1 << n));
    }
}

int main()
{
    ios_base::sync_with_stdio(0);
    iostream::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    srand(time(NULL));
    cin >> n;
    for (int i = 0; i < n; i++)
    {
        int x, y;
        cin >> x >> y;
        a[x].pb(y);
        a[y].pb(x);
    }
    while (1)
    {
        bool g1 = 0;
        for (int i = 0; i <= n; i++)
        {
            ans1.pb({});
            ans1.back().resize(n + 1);
            vc.clear();
            g = 1;
            Rec(i, 0, 0);
            if (g)
            {
                g1 = 1;
                break;
            }
            ans1.pop_back();
            for (auto j : vc) mrk[j.f][j.s] = 0;
        }
        if (!g1) break;
    }

    int k = ans1.size();
    for (int x = 0; x < min((1 << n), M); x++)
    {
        for (int ps = 0; ps < k; ps++)
        {
            bool g = 1;
            for (int i = 0; i <= n; i++)
                for (auto j : a[i]) g &= !mrk[min(ans1[ps][i] ^ x, ans1[ps][j] ^ x)][max(ans1[ps][i] ^ x, ans1[ps][j] ^ x)];
            if (g)
            {
                ans1.pb(ans1[ps]);
                for (int i = 0; i <= n; i++) ans1.back()[i] ^= x;
                for (int i = 0; i <= n; i++)
                    for (auto j : a[i]) mrk[min(ans1.back()[i], ans1.back()[j])][max(ans1.back()[i], ans1.back()[j])] = 1;
            }
        }
    }
    cout << ans1.size() << endl;
    for (auto i : ans1)
    {
        for (auto j : i) cout << j << " ";
        cout << endl;
    }
}
/*
5 3
2 1 1 2 2 3
2 3 3 4 4 5
4 1 1 2 2 3 3 4 4 5
*/

Subtask #1

0.0 / 110.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	17 ms	35532 KB	Output is correct
2	Partially correct	17 ms	35536 KB	Output is partially correct
3	Partially correct	18 ms	35532 KB	Output is partially correct
4	Partially correct	19 ms	35464 KB	Output is partially correct
5	Partially correct	23 ms	35620 KB	Output is partially correct
6	Partially correct	21 ms	35532 KB	Output is partially correct
7	Partially correct	28 ms	35660 KB	Output is partially correct
8	Partially correct	50 ms	35780 KB	Output is partially correct
9	Partially correct	816 ms	44736 KB	Output is partially correct
10	Partially correct	378 ms	38148 KB	Output is partially correct
11	Execution timed out	1083 ms	40712 KB	Time limit exceeded
12	Halted	0 ms	0 KB	-