Submission #44957

#	Time	Username	Problem	Language	Result	Execution time	Memory
44957		RayaBurong25_1	Unscrambling a Messy Bug (IOI16_messy)	C++17	100 / 100	4 ms	640 KiB

messy

#include <vector>
#include <iostream>
#include "messy.h"

std::vector<int> restore_permutation(int n, int w, int r) {
    std::string S;
    int i, j, k, lgN;
    for (lgN = 0; (1 << lgN) < n; lgN++);
    // std::cout << lgN << "\n";
    for (i = 0; i < n; i++)
        S.push_back('0');
    for (i = lgN - 1; i >= 0; i--)
    {
        // std::cout << "i = " << i << "\n";
        for (j = 0; j < n; j++)
        {
            if (j&(1 << i))
            {
                for (k = 0; k < n; k++)
                {
                    if ((k^j) < (1 << (i + 1)))
                        S[k] = '0';
                    else
                        S[k] = '1';
                }
                S[j] = '1';
                // std::cout << S << "\n";
                add_element(S);
            }
        }
    }
    // std::cout << "Compile Set\n";
    compile_set();
    std::vector<int> V, Vnew;
    std::vector<int> Ans;
    for (i = 0; i < n; i++)
    {
        V.push_back(0);
        S[i] = '0';
    }
    for (i = lgN - 1; i >= 0; i--)
    {
        Vnew = V;
        for (j = 0; j < n; j++)
        {
            for (k = 0; k < n; k++)
            {
                if (V[k] == V[j])
                    S[k] = '0';
                else
                    S[k] = '1';
            }
            S[j] = '1';
            // std::cout << S << "\n";
            if (check_element(S))
            {
                Vnew[j] += (1 << i);
            }
        }
        V = Vnew;
    }
    return V;
}

• Subtask 1: 20 / 20
• Subtask 2: 18 / 18
• Subtask 3: 11 / 11
• Subtask 4: 21 / 21
• Subtask 5: 30 / 30