Cod sursa(job #1116515)

Utilizator radu_cebotariRadu Cebotari radu_cebotari Data 22 februarie 2014 17:15:19
Problema Generare de permutari Scor 80
Compilator cpp Status done
Runda Arhiva educationala Marime 0.73 kb
#include<fstream>
using namespace std;
ifstream in("permutari.in");
ofstream out("permutari.out");
int n,v[9];

inline void tipar()
{
    int i;
    for(i = 1 ; i<=n ; i++ )
        out<<v[i]<<" ";
    out<<endl;
}

void init(int k)
{
    v[k] = 0;
}

int succ(int k)
{
    if(v[k]<n)
    {
        v[k]++;
        return 1;
    }
    return 0;
}

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

void back(int k)
{
    if (k == n+1)
        tipar();
    else
    {
        init(k);
        while(succ(k))
        {
            if(valid(k)) back(k+1);
        }
    }
}

int main()
{

    in>>n;
    back(1);
    return 0;
}