Cod sursa(job #1151418)

Utilizator rebound212Mihnea Savu rebound212 Data 24 martie 2014 09:27:50
Problema Order Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.11 kb
#include <cstdio>
#include <cstring>
#define bit(x) (x&(-x))
#define inf (1<<20)
using namespace std;
int i,n,aib[30001],sol[30001],poteito,a[30001],poz,nr,n2;

void update(int x, int y)
{
    int i;
    for(i=x; i<=n; i+=bit(i))
        a[i]+=y;
}
int query(int x)
{
    int i,s=0;
    for(i=x; i>=1; i-=bit(i))
        s+=a[i];
    return s;
}
int bs(int x)
{
    int st,dr,m,s,Min=30010;
    st=1; dr=n;
    while(st<=dr)
    {
        m=(st+dr)/2;
        s=query(m);
        if(s==x && m<Min) Min=m;
        else if(s==x) dr=m-1;
        else if(s>x) dr=m-1;
        else st=m+1;
    }
    return Min;
}
int main()
{
    freopen("order.in","r",stdin);
    freopen("order.out","w",stdout);
    scanf("%d",&n);
    for(i=1;i<=n;i++)
    {
        update(i,1);
    }
    poz=2;
    n2=n-1;
    for(i=1;i<=n;i++)
    {
       poteito=bs(poz);
       update(poteito,-1);
       sol[++nr]=poteito;
       poz+=i;
       if(poz>n2 && i!=n) poz%=n2;
       if(poz==0 && i!=n) poz=n2;
      n2--;

    }
      for(i=1; i<=n;i++)
        printf("%d ", sol[i]);

    return 0;
}