Submission #567726

#	Time	Username	Problem	Language	Result	Execution time	Memory
567726		Stickfish	"The Lyuboyn" code (IZhO19_lyuboyn)	C++17	14 / 100	248 ms	6452 KiB

lyuboyn

#include <iostream>
#include <vector>
#include <bitset>
using namespace std;

const int MAXN = 18;

vector<int> get_ans(int n, int k, int t) {
    if (k & 2) {
        return {};
    }
    if (k == 1) {
        vector<int> ans = {0};
        for (int i = 0; i < (1 << n) - 1; ++i) {
            int t = ((i ^ (i + 1)) + 1) >> 1;
            ans.push_back(ans.back() ^ t);
        }
        return ans;
    }
    return {};
}

signed main() {
    int n, k, t;
    cin >> n >> k >> t;
    int s = 0;
    for (int i = 0; i < n; ++i) {
        char c;
        cin >> c;
        if (c == '1')
            s += 1 << i;
    }
    vector<int> ans = get_ans(n, k, t);
    if (ans.empty()) {
        cout << -1 << '\n';
        return 0;
    }
    s ^= ans[0];
    cout << (1 << n) << '\n';
    for (auto& x : ans) {
        x ^= s;
        bitset<MAXN> bs = x;
        for (int i = 0; i < n; ++i)
            cout << bs[i];
        cout << '\n';
    }
}

• Subtask 1: 0 / 0
• Subtask 2: 0 / 5
• Subtask 3: 3 / 3
• Subtask 4: 11 / 11
• Subtask 5: 0 / 15
• Subtask 6: 0 / 18
• Subtask 7: 0 / 31
• Subtask 8: 0 / 17