Nu aveti permisiuni pentru a descarca fisierul grader_test25.in
Cod sursa(job #1497485)
Utilizator | 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;
}