Submission #332469

#	Time	Username	Problem	Language	Result	Execution time	Memory
332469		keko37	"The Lyuboyn" code (IZhO19_lyuboyn)	C++14	100 / 100	417 ms	6860 KiB

lyuboyn

#include<bits/stdc++.h>

using namespace std;

typedef long long llint;
typedef pair <int, int> pi;
typedef vector <int> vi;

int N, K, T;
string s;

void ispis (int x) {
    for (int i = 0; i < N; i++) {
        cout << !!(x & (1 << i));
    }
    cout << '\n';
}

vi gen (int n, int k) {
    vi res;
    if (k == 1) {
        if (n == 1) {
            res = {0, 1};
            return res;
        }
        vi tmp = gen(n - 1, k);
        for (int i = 0; i < tmp.size(); i++) {
            res.push_back(tmp[i] * 2);
        }
        for (int i = (int) tmp.size() - 1; i >= 0; i--) {
            res.push_back(tmp[i] * 2 + 1);
        }
        return res;
    }
    vi tmp = gen(n - 2, k - 2);
    vi v[2];
    v[0] = tmp; v[1] = tmp;
    reverse(v[1].begin(), v[1].end());
    for (int br = 0; br < 4; br++) {
        int jen, dva;
        if (br == 0) jen = 0, dva = 3;
        if (br == 1) jen = 1, dva = 2;
        if (br == 2) jen = 3, dva = 0;
        if (br == 3) jen = 2, dva = 1;
        int tip = br % 2;
        for (int i = 0; i < v[tip].size(); i++) {
            int val = v[tip][i];
            if (br == 1 || br == 3) val ^= (1 << (k - 1)) - 1;
            val *= 4;
            if (i % 2 == 0) val += jen; else val += dva;
            res.push_back(val);
        }
    }
    return res;
}

int main () {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cin >> N >> K >> T >> s;
    if (K % 2 == 0) {
        cout << -1;
        return 0;
    }
    int val = 0;
    for (int i = 0; i < N; i++) {
        if (s[i] == '1') val += 1 << i;
    }
    vi res = gen(N, K);
    cout << (1 << N) << '\n';
    for (auto x : res) ispis(x ^ val);
    return 0;
}

Compilation message (stderr)

lyuboyn.cpp: In function 'vi gen(int, int)':
lyuboyn.cpp:27:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |         for (int i = 0; i < tmp.size(); i++) {
      |                         ~~^~~~~~~~~~~~
lyuboyn.cpp:46:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |         for (int i = 0; i < v[tip].size(); i++) {
      |                         ~~^~~~~~~~~~~~~~~

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