Cod sursa(job #2097019)

Utilizator Cristian.BBurghelea Cristian Cristian.B Data 30 decembrie 2017 12:53:28
Problema Generare de permutari Scor 20
Compilator cpp Status done
Runda Arhiva educationala Marime 0.56 kb
#include <fstream>

using namespace std;

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

int s[30],n;

void afisare()
{
    for(int i=1;i<=n;++i)fout<<s[i];
    fout<<'\n';
}

int valid(int k)
{
    for(int i=1;i<k;++i)
        if(s[i]==s[k])return 0;
    return 1;
}

void generare (int k)
{
    for(int i=1;i<=n;++i)
       {s[k]=i;
        if(valid(k)) if(k==n)afisare();
                     else generare(k+1);
       }
}

int main()
{
    fin>>n;
    generare(1);

    fin.close(); fout.close();
    return 0;
}