Cod sursa(job #1579690)

Utilizator PaulHerHerman Paul PaulHer Data 24 ianuarie 2016 22:55:18
Problema Generare de permutari Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.98 kb
#include<iostream>
#include<fstream>
using namespace std;
ifstream fin("permutari.in");
ofstream fout("permutari.out");
int st[9],n,k;
void init()
{
    st[k]=0;
}
int succesor()
{
    if (st[k]<n)
    {
        st[k]++;
        return 1;
    }
    return 0;
}
int valid()
{
    for (int i=1;i<k;i++)
    {
        if (st[k]==st[i])
            return 0;
    }
    return 1;
}
int sol()
{
    return (k==n);
}
void tipar()
{
    for (int i=1;i<=n;i++)
    {
        fout<<st[i]<<" ";
    }
    fout<<"\n";
}
int bkt()
{
    int as;
    k=1;
    init();
    while (k>0)
    {
        do{}
        while ((as=succesor())&&!valid());
        if (as)
        {
            if (sol())
            {
                tipar();
            }
            else
            {
                k++;
                init();
            }
        }
        else
        {
            k--;
        }
    }
}
int main ()
{
    fin>>n;
    bkt();
}