제출 #784073

#제출 시각아이디문제언어결과실행 시간메모리
784073zsomborUnscrambling a Messy Bug (IOI16_messy)C++17
100 / 100
2 ms512 KiB
#include <iostream>
#include <vector>
#include "messy.h"
using namespace std;

string s = "";

char opp(int i) {
    return (s[i] == '0' ? '1' : '0');
}

vector <int> restore_permutation(int n, int w, int r) {
    int l = 0; while ((n & (1 << l)) == 0) l++;
    for (int i = 0; i < n; i++) s.push_back('0');
    for (int i = 1; i < n; i += 2) { s[i] = '1'; add_element(s); s[i] = '0'; }
    for (int j = 1; j < l; j++) {
        for (int i = 0; i < n; i++) s[i] = (i & (1 << (j - 1))) ? '1' : '0';
        for (int i = 0; i < n; i++) {
            if ((i & (1 << j)) == 0) continue;
            s[i] = opp(i);
            add_element(s);
            s[i] = opp(i);
        }
    }
    compile_set();
    fill(s.begin(), s.end(), '0');
    vector <vector <bool>> b(n, vector <bool>(l, false));
    for (int i = 0; i < n; i++) { s[i] = '1'; b[i][0] = check_element(s); s[i] = '0'; }
    for (int j = 1; j < l; j++) {
        for (int i = 0; i < n; i++) s[i] = b[i][j - 1] ? '1' : '0';
        for (int i = 0; i < n; i++) {
            s[i] = opp(i);
            b[i][j] = check_element(s);
            s[i] = opp(i);
        }
    }
    vector <int> ans(n, 0);
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < l; j++) {
            if (b[i][j]) ans[i] += (1 << j);
        }
    }
    return ans;
}
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