Cod sursa(job #1425662)

Utilizator andru47Stefanescu Andru andru47 Data 27 aprilie 2015 21:00:17
Problema Order Scor 100
Compilator cpp Status done
Runda pregatire-lot-aib Marime 1.21 kb
#include <cstdio>
#include <climits>
#define ub(x) (x&(-x))
using namespace std;
int a[30005],A[30005],n,i,ind,cop,x;
void add(int poz,int val)
{
    int i;
    for (i=poz;i<=n;i+=ub(i))
        A[i]+=val;
    return;
}
int sum(int poz)
{
    int i,s=0;
    for (i=poz;i>0;i-=ub(i))
        s+=A[i];
    return s;
}
int caut(int x)
{
    int st,dr,miny=INT_MAX,mij,xx;
    st=1;
    dr=n;
    while (st<=dr)
    {
        mij=(st+dr)/2;
        xx=sum(mij);
        if (xx==x&&mij<miny)miny=mij;
        else if (xx>=x)dr=mij-1;
        else st=mij+1;
    }
    return miny;
}
int mod(int x,int MOD)
{
    if (x%MOD==0)return MOD;
    return x%MOD;
}
void decrease(int poz,int val)
{
    int i;
    for (i=poz;i<=n;i+=ub(i))
        A[i]-=val;
    return ;
}
int main()
{
    freopen("order.in","r",stdin);
    freopen("order.out","w",stdout);
    scanf("%d\n",&n);
    for (i=1;i<=n;i++)
        add(i,1);
    ind=n;
    cop=2;
    for (i=1;i<=n;i++)
    {
        ind--;
        x=caut(cop);
        decrease(x,1);
        a[i]=x;
        cop+=i;
        if (ind!=0)cop=mod(cop,ind);
    }
    for (i=1;i<=n;i++)
    {
        printf("%d ",a[i]);
    }
    return 0;
}