Cod sursa(job #2282251)

Utilizator FunnyStockyMihnea Andreescu FunnyStocky Data 13 noiembrie 2018 15:25:23
Problema Farfurii Scor 80
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.89 kb
#include <fstream>

using namespace std;

ifstream fin("farfurii.in");
ofstream fout("farfurii.out");

const int N=100000+5;

int n;
long long cnt,lft,x;
int vi;
int aib[N];

int main()
{
    fin>>n>>cnt;
    const int bs=(1<<16);
    for(register int i=1;i<=n;i++)
    {
        lft=n-i;
        x=lft*(lft-1)/2;
        if(cnt<=x)
        {
            vi=0;
        }
        else
        {
            vi=cnt-x;
        }
        cnt-=vi;
        vi++;
        register int r=0,pas=bs;
        register int now=0;
        while(pas)
        {
            if(r+pas<=n && r+pas+now+aib[r+pas]<vi)
            {
                r+=pas;
                now+=aib[r];
            }
            pas>>=1;
        }
        r++;
        for(int j=r;j<=n;j+=j&(-j))
        {
            aib[j]--;
        }
        fout<<r<<" ";
    }
    fout<<"\n";
    return 0;
}