Cod sursa(job #2880004)

Utilizator T1raduTaerel Radu Nicolae T1radu Data 29 martie 2022 12:23:00
Problema Farfurii Scor 60
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.76 kb
#include <fstream>
#include <set>
#include <iostream>
using namespace std;
ifstream fin("farfurii.in");
ofstream fout("farfurii.out");
int n,k,v[100001];
set<int> S;
void constr(int n, int k)
{
    int pcrt=1;
    while(pcrt<=n)
    {
        int val=(n-pcrt)*(n-pcrt-1)/2;
        if(k<=val)
        {
            v[pcrt]=*(S.begin());
        }
        else
        {
            set<int>::iterator it=S.begin();
            for(int j=1;j<k-val+1;j++)
                ++it;
            v[pcrt]=*it;
            k-=k-val;
        }
        S.erase(v[pcrt]);
        pcrt++;
    }
}
int main()
{
    fin >> n >> k;
    for(int i=1;i<=n;i++) S.insert(i);
    constr(n,k);
    for(int i=1;i<=n;i++)
        fout << v[i] << " ";
    return 0;
}