Cod sursa(job #3199933)

Utilizator robert_dumitruDumitru Robert Ionut robert_dumitru Data 2 februarie 2024 21:41:16
Problema Order Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.05 kb
#include <bits/stdc++.h>
using namespace std;

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

int n;
int aib[30005];

void Update(int p, int x)
{
    while (p <= n)
    {
        aib[p] += x;
        p += (p & (-p));
    }
}
int Query(int p)
{
    int suma = 0;
    while (p >= 1)
    {
        suma += aib[p];
        p -= (p & (-p));
    }
    return suma;
}
int CB(int val)
{
    int st, dr, mij, Poz, Q;
    st = 1; dr = n;
    while (st <= dr)
    {
        mij = (st + dr) / 2;
        Q = Query(mij);
        if (Q >= val)
        {
            Poz = mij;
            dr = mij - 1;
        }
        else 
            st = mij + 1;
    }
    return Poz;
}

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

    Elimina = 2;
    for (i = 1; i <= n; i++)
    {
        Poz = CB(Elimina);
        Elimina = (Elimina + Poz - 1) % Query(n);
        if (Elimina == 0)
            Elimina++;
        Update(Poz, -1);
        fout << Poz << " ";
    }
}