Submission #251448

#	Time	Username	Problem	Language	Result	Execution time	Memory
251448		Vladikus004	Dojave (COCI17_dojave)	C++14	0 / 140	4089 ms	11512 KiB

dojave

#include <bits/stdc++.h>
#define inf 2e9
#define all(v) v.begin(), v.end()
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair <int, int> pii;

const int N = 21;
int n, a[1<<N];

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    #ifdef LOCAL
        freopen("input.txt", "r", stdin);
    #endif // LOCAL
    cin >> n;
    n = (1<<n);
    for (int i = 0; i < n; i++) cin >> a[i];
    int ans = 0;
    for (int i = 0; i < n; i++){
        for (int j = i; j < n; j++){
            int can = 0;
            for (int i1 = 0; i1 < n; i1++){
                for (int i2 = 0; i2 < n; i2++){
                    swap(a[i1], a[i2]);
                    int x = 0;
                    for (int i3 = i; i3 <= j; i3++){
                        x = x ^ a[i3];
                    }
                    if (x == n - 1) can = 1;
                    swap(a[i1], a[i2]);
                    if (can) break;
                }
                if (can) break;
            }
            ans+=can;
        }
    }
    cout << ans;
}

• Subtask 1: 0 / 14
• Subtask 2: 0 / 14
• Subtask 3: 0 / 14
• Subtask 4: 0 / 14
• Subtask 5: 0 / 14
• Subtask 6: 0 / 14
• Subtask 7: 0 / 14
• Subtask 8: 0 / 14
• Subtask 9: 0 / 14
• Subtask 10: 0 / 14