Cod sursa(job #2486021)

Utilizator bananamandaoneTudor Cosmin Oanea bananamandaone Data 2 noiembrie 2019 11:22:49
Problema Schi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.3 kb
#include <fstream>

using namespace std;

int n, aib[30003], a[30003], cls[30003];
ifstream fin("schi.in");
ofstream fout("schi.out");

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

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

int CautareBinara(int p, int s)
{
    int st, dr, mij, poz;
    int suma;
    st = 1;
    dr = p;
    poz = -1;
    while(st <= dr)
    {
        mij = (st + dr) / 2;
        suma = Suma(mij);
        if(suma == s)
        {
            poz = mij;
            dr = mij - 1;
        }
        else
            if(suma > s)
                dr = mij - 1;
            else
                st = mij + 1;
    }
    return poz;
}

int main()
{
    int i, x, poz;
    fin >> n;
    for(i = 1; i <= n; i++)
    {
        fin >> a[i];
        Update(i, 1);
    }
    for(i = n; i >= 1; i--)
    {
        x = a[i];
        ///caut cea mai din stanga pozitie poz
        ///cu suma(poz) = x

        poz = CautareBinara(n,x);
        Update(poz,-1);
        cls[poz] = i;
    }

    for(i = 1; i <= n; i++)
        fout << cls[i] << "\n";

    fin.close();
    fout.close();
    return 0;
}