Cod sursa(job #1743171)

Utilizator antracodRadu Teodor antracod Data 17 august 2016 18:05:08
Problema Schi Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.79 kb
#include <fstream>
#include <iostream>

using namespace std;

ifstream in("schi.in");
ofstream out("schi.out");

int aib[30001],init[30001],fin[30001];
int n;

int query(int x)
{
    int sol=0,i;
    for(i=x;i>0;i=(i&(i-1)))
    {
        sol=sol+aib[i];
    }
    return sol;
}

void citeste()
{
    for(int i=1;i<=n;i++)
    {
        aib[i]=1;
    }

    for(int i=1;i<=n;i++)
    {
        in>>init[i];
        aib[i]+=query(i-1)-query(i&(i-1));
    }
}
void update(int x,int y)
{
    for(int i=x;i<=n;i=i*2-(x&(x-1)))
    {
        aib[i]+=y;
    }
}
int rezolva()
{
    for(int i=n;i>0;i--)
    {
        fin[i]=query(i+1)+query(i);
        update(i,-1);
        out<<fin[i]/2<<" ";
    }
}

int main()
{
    in>>n;
    citeste();
    rezolva();
}