제출 #1080551

#제출 시각아이디문제언어결과실행 시간메모리
1080551damjandavkovUnscrambling a Messy Bug (IOI16_messy)C++17
100 / 100
2 ms636 KiB
#include <bits/stdc++.h>
#include "messy.h"
using namespace std;
int u;
vector<int> q, nq;
vector<bool> z;
void add(int l, int r)
{
    if (r - l < 2)
        return;
    string s;
    int i, m = (l + r) / 2;
    for (i = 0; i < u; i++)
        s += '1';
    for (i = l; i < r; i++)
        s[i] = '0';
    for (i = l; i < m; i++)
    {
        s[i] = '1';
        add_element(s);
        s[i] = '0';
    }
    add(l, m);
    add(m, r);
}
void check(int l, int r)
{
    if (r - l < 2)
        return;
    string s;
    int i, j = l, m = (l + r) / 2, k;
    k = m;
    for (i = 0; i < u; i++)
        s += '1';
    for (i = l; i < r; i++)
        s[q[i]] = '0';
    for (i = l; i < r; i++)
    {
        s[q[i]] = '1';
        if (check_element(s))
        {
            nq[j] = q[i];
            j++;
        }
        else
        {
            nq[k] = q[i];
            k++;
        }
        s[q[i]] = '0';
    }
    q = nq;
    check(l, m);
    check(m, r);
}
vector<int> restore_permutation(int N, int w, int r)
{
    int i;
    u = N;
    add(0, u);
    compile_set();
    q.resize(u);
    z.resize(u);
    for (i = 0; i < u; i++)
    {
        q[i] = i;
        z[i] = 0;
    }
    nq = q;
    check(0, u);
    vector<int> an(u);
    for (i = 0; i < u; i++)
        an[q[i]] = i;
    return an;
}
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