Cod sursa(job #2019686)

Utilizator darisavuSavu Daria darisavu Data 8 septembrie 2017 12:37:24
Problema Order Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.95 kb
#include <fstream>
#define ub(x) (x&(-x))
using namespace std;
ifstream f("order.in");
ofstream g("order.out");
int aib[30005],b[30005],n,y,k;
void scade(int poz)
{
    for(int i=poz;i<=n;i=i+ub(i))
    {
        aib[i]--;
    }
}
int sum(int poz)
{
    int s=0;
    for(int i=poz;i>0;i=i-ub(i))
    {
        s=s+aib[i];
    }
    return s;
}
int caut(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()
{
    int i,l;
    f>>n;
    for(i=1;i<=n;i++)
    {
    aib[i]=ub(i);
    }
    l=2;
    k=n;
    for(i=1;i<=n;i++)
    {
         y=caut(l);
         scade(y);
         g<<y<<" ";
        k--;
        l=l+i;
        if(k)
        {
            if(l%k==0) l=k;
            else l=l%k;
        }

    }
    return 0;
}