Submission #344902

#	Time	Username	Problem	Language	Result	Execution time	Memory
344902		bash	"The Lyuboyn" code (IZhO19_lyuboyn)	C++17	31 / 100	303 ms	23264 KiB

lyuboyn

//
//  A.cpp
//  torelax
//
//  Created by Rakhman on 1/5/21.
//

#include <cstring>
#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <queue>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <cassert>
#include <iterator>

#define ios ios_base::sync_with_stdio(0), cout.tie(0), cin.tie(0);
#define S second
#define F first
#define pb push_back
#define nl '\n'
#define NL cout << '\n';
#define EX exit(0)
#define all(s) s.begin(), s.end()
#define no_answer {cout << "NO"; exit(0);}
#define FOR(i, start, finish, k) for(llong i = start; i <= finish; i += k)

const long long mxn = 1e6 + 110;
const long long mnn = 3e3 + 2;
const long long mod = 1e9 + 7;
const long long inf = 1e18;
const long long OO = 1e9 + 100;

typedef long long llong;
typedef unsigned long long ullong;

using namespace std;

int n, k, t, cnt = 0;
bool used[(1 << 18) + 100];
vector<int> trap;
vector<int> ans;

int to_dec(string s){
    int ans = 0;
    while(s.size()) {
        ans = ans * 2 + s.back()-'0';
        s.pop_back();
    }
    return ans;
}

void outt(int x){
    for(int j = n- 1; j >= 0; j--){
        if(((1 << j) & x)){
            cout << 1;
        }else{
            cout << 0;
        }
    }
    cout << nl;
}

void rec(int cur){
    used[cur] = 1;
    cnt++;
    ans.push_back(cur);
    if(cnt == (1 << n)){
        cout << ans.size() << nl;
        for(int i = 0; i < ans.size(); i++){
            outt(ans[i]);
        }
        exit(0);
    }
    for(int i = 0; i < trap.size(); i++){
        int lol = trap[i];
        if(!used[lol ^ cur]) {
            rec(lol ^ cur);
        }
    }
}

int main() {
    cin >> n >> k >> t;
    string s;
    cin >> s;
    int x = to_dec(s);
    for(int i = 1; i < (1 << n); i++){
        if(__builtin_popcount(i) == k){
            trap.push_back(i);
        }
    }
    rec(x);
}

Compilation message (stderr)

lyuboyn.cpp: In function 'void rec(int)':
lyuboyn.cpp:84:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   84 |         for(int i = 0; i < ans.size(); i++){
      |                        ~~^~~~~~~~~~~~
lyuboyn.cpp:89:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   89 |     for(int i = 0; i < trap.size(); i++){
      |                    ~~^~~~~~~~~~~~~

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