Submission #252673

#	Time	Username	Problem	Language	Result	Execution time	Memory
252673		kartel	Geppetto (COCI15_geppetto)	C++14	80 / 80	15 ms	512 KiB

geppetto

#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
#define in(x) freopen(x, "r", stdin)
#define out(x) freopen(x, "w", stdout)
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
//#pragma GCC optimize("Ofast,nso-stack-protector,unroll-loops,fast-math,-O3")
//#define F first
//#define S second
#define pb push_back
#define N +100500
#define M ll(1e9 + 7)
#define sz(x) (int)x.size()
#define re return
#define oo ll(1e9)
#define el '\n'
#define Max_A int(1e9)
//#define el endl
#define pii pair <int, int>
#define err ld(1e-9)
#define Max_S int(3e6)
#define last(x) x.back()
#define all(x) (x).begin(), (x).end()
#define arr_all(x, n) (x + 1), (x + 1 + n)
using namespace std;
//using namespace __gnu_pbds;
//typedef tree <int, null_type, less_equal <int> , rb_tree_tag, tree_order_statistics_node_update> ordered_set;
typedef long long ll;
typedef long double ld;

int ans, n, m, a[505], b[505], mask, i, j;

int main()
{
    cout.precision(2);
    srand(time(0));
    ios_base::sync_with_stdio(0);
    iostream::sync_with_stdio(0);
    ios::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);

//    in("input.txt");
//    out("output.txt");

    cin >> n >> m;
    for (i = 1; i <= m; i++) cin >> a[i] >> b[i], a[i]--, b[i]--;

    for (mask = 0; mask < (1 << n); mask++)
    {
        bool bad = 0;

        for (j = 1; j <= m && !bad; j++)
            if ((mask & (1 << a[j])) &&
                (mask & (1 << b[j])))
                bad = 1;

        if (!bad)
            ans++;
    }
    cout << ans;
}
//
//00000
//00110
//00111
//00011
//00000

• Subtask 1: 80 / 80