Cod sursa(job #3320055)

Utilizator Andrada_MincaAndrada Minca Andrada_Minca Data 4 noiembrie 2025 10:25:41
Problema Order Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.1 kb
//
//  main.cpp
//  order
//
//  Created by Andrada Minca on 04.11.2025.
//

#include <fstream>
#include <vector>
using namespace std;
ifstream cin("order.in");
ofstream cout("order.out");
vector<int> aib;
int lsb(int x)
{
    return (x&(-x));
}
void update(int x,int add)
{
    for(int i=x;i<aib.size();i+=lsb(i))
    {
        aib[i]+=add;
    }
}
long long query(int x)
{
    long long sum=0;
    for(int i=x;i>0;i-=lsb(i))
    {
        sum+=aib[i];
    }
    return sum;
}
int bs(long long s)
{
    int ans=0;
    long long sum=0;
    for(int pas=(1<<17);pas>0;pas/=2)
    {
        if(ans+pas+1<aib.size()&&sum+aib[ans+pas]<s)
        {
            ans+=pas;
            sum+=aib[ans];
        }
    }
    if(query(ans+1)==s)
    {
        return ans+1;
    }
    else return -1;
}
int main()
{
    int n;
    cin>>n;
    aib.resize(n+1);
    for(int i=1;i<=n;i++)
    {
        update(i,1);
    }
    int ind=1,crt=1;
    for(int i=1;i<=n;i++)
    {
        ind+=i;
        ind%=(n-i+1);
        if(ind==0)ind=n-i+1;
        crt=bs(ind);
        update(crt,-1);
        cout<<crt<<" ";
        ind--;
    }
    return 0;
}