Cod sursa(job #2021072)

Utilizator AlexandruabcdeDobleaga Alexandru Alexandruabcde Data 12 septembrie 2017 17:21:13
Problema Order Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.92 kb
#include <fstream>
#define ub(x) (x&(-x))
using namespace std;
ifstream f ("order.in");
ofstream g ("order.out");
int n,y,k,aib[30005],i,j;
void scad (int poz)
{
    for (int i=poz;i<=n;i+=ub(i))
        aib[i]--;
}
int sum(int poz)
{
    int s=0;
    for (int i=poz;i>0;i-=ub(i)) {
        s=s+aib[i];
    }
    return s;
}
int cautbin(int val)
{
    int st=1,dr=n,mn=n+1,mij;
    while(st<=dr)
    {
        mij=(st+dr)/2;
        if(sum(mij)==val&&mij<mn) {mn=mij;dr=mij-1;}
        else if(sum(mij)>val) dr=mij-1;
        else st=mij+1;
    }
    return mn;
}
int main()
{
    f>>n;
    for(i=1;i<=n;i++)
    {
    aib[i]=ub(i);
    }
    j=2;
    k=n;
    for(i=1;i<=n;i++)
    {
         y=cautbin(j);
         scad(y);
         g<<y<<" ";
        k--;
        j=j+i;
        if(k)
        {
            if(j%k==0) j=k;
            else j=j%k;
        }

    }
    return 0;

}