Nu aveti permisiuni pentru a descarca fisierul grader_test25.in

Cod sursa(job #1497485)

Utilizator StefanutzzKis Stefan Marian Stefanutzz Data 6 octombrie 2015 21:24:51
Problema Generare de permutari Scor 20
Compilator cpp Status done
Runda Arhiva educationala Marime 0.57 kb
#include <fstream>
using namespace std;
ifstream fin("permutari.in");
ofstream fout("permutari.out");
int n,st[100];
void afiseaza(int p)
{
    int i;
    for(i=1;i<=n;++i)
    fout<<st[i];
    fout<<'\n';
}
bool valid(int p)
{
    int i;
    for(i=1;i<=p-1;++i)
    if(st[i]==st[p])return 0;
    return 1;
}
void back(int p)
{
    int pval;
    for(pval=1;pval<=n;pval++)
    {
        st[p]=pval;
        if(valid(p))
        if(p==n)afiseaza(p);
        else
        back(p+1);
    }
}
int main()
{
    fin>>n;
    back(1);
    return 0;
}