Cod sursa(job #3267247)

Utilizator alex_0747Gheorghica Alexandru alex_0747 Data 11 ianuarie 2025 10:31:41
Problema Order Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.44 kb
#include <bits/stdc++.h>
using namespace std;

/**
order
baruri
schi
distincte
mate
intervale2
unique
*/

ifstream fin("order.in");
ofstream fout("order.out");

int aib[100005], n;

void Update(int p, int x)
{
    for ( ; p <= n; p += (p & -p))
        aib[p] += x;
}

int Query(int p)
{
    int s = 0;
    for ( ; p > 0; p -= (p & -p))
        s += aib[p];
    return s;
}

int SearchFw(int p, int x)
{
    int st, dr, mij, ind, s;
    st = p + 1; dr = n; ind = -1;
    s = Query(p);
    while (st <= dr)
    {
        mij = (st + dr) / 2;
        if (Query(mij) - s >= x)
        {
            ind = mij;
            dr = mij - 1;
        }
        else
            st = mij + 1;
    }
    return ind;
}

int Search(int x)
{
    int st, dr, mij, ind;
    st = 1; dr = n; ind = -1;
    while (st <= dr)
    {
        mij = (st + dr) / 2;
        if (Query(mij) >= x)
        {
            ind = mij;
            dr = mij - 1;
        }
        else
            st = mij + 1;
    }
    return ind;
}

int main()
{
    int i, p, x;
    fin >> n;
    for (i = 1; i <= n; i++)
        Update(i, 1);

    p = 1;
    for (i = 0; i < n; i++)
    {
        x = Query(n) - Query(p);
        if (x > (i + 1) % (n - i))
            p = SearchFw(p, (i + 1) % (n - i));
        else
            p = Search((i + 1) % (n - i) - x);
        Update(p, -1);
        fout << p << " ";
    }
    return 0;
}