Cod sursa(job #2669447)

Utilizator Danut200333Dumitru Daniel Danut200333 Data 6 noiembrie 2020 23:23:04
Problema Order Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.98 kb
#include <fstream>

using namespace std;
ifstream fin("order.in");
ofstream fout("order.out");
int aib[30005],n,st,dr,x,mid,poz,i;
void add(int x,int val,int n)
{
    while(x<=n)
    {
        aib[x]+=val;
        x+=x&-x;
    }
}
int sum(int x)
{
    int s=0;
    while(x)
    {
        s+=aib[x];
        x-=x&-x;
    }
    return s;
}
int main()
{
    fin>>n;
    for(i=1; i<=n; i++)
    {
        add(i,1,n);
    }
    poz=2;
    for(i=1; i<=n; i++)
    {
        poz=(poz+i-1)%(n-i+1);
        if(poz==0)
        {
            poz=n-i+1;
        }
        st=1;
        dr=n;
        x=n;
        while(st<=dr)
        {
            mid=(st+dr)>>1;
            if(sum(mid)<=poz)
            {
                x=mid;
                st=mid+1;
            }
            else dr=mid-1;
        }
        while(sum(x)==poz)
        {
            x--;
        }
        x++;
        add(x,-1,n);
        fout<<x<<' ';
    }
    return 0;
}