Cod sursa(job #3193915)

Utilizator beniglavan10Beni Glavan beniglavan10 Data 16 ianuarie 2024 00:59:45
Problema Order Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1 kb
//https://www.infoarena.ro/problema/order

#include <fstream>
#include <vector>

using namespace std;
ifstream cin("order.in");
ofstream cout("order.out");
#define MAXN 100000
int n;
vector <int> bit(MAXN + 1, 0);
void update(int i, int val)
{
    while (i <= n)
    {
        bit[i] += val;
        i += (i & -i);
    }
}
int prefixSum(int i)
{
    int sum;
    sum = 0;
    while (i > 0)
    {
        sum += bit[i];
        i -= (i & -i);
    }
    return sum;
}
int main()
{
    cin >> n;
    int i;
    for (i = 1; i <= n; i++)
        update(i, 1);
    int poz, dr, st, mij;
    poz = 2;
    for (i = 1; i <= n; i++)
    {
        poz = (poz + n - 1) % (n - i + 1) + 1;
        st = 1;
        dr = n;
        while (st < dr)
        {
            mij = (st + dr) / 2;
            if (prefixSum(mij) >= poz)
                dr = mij;
            else
                st = mij + 1;
        }
        cout << dr << " ";
        update(dr, -1);
    }
    return 0;
}