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Cod sursa(job #395557)
#include <iostream>
#include <fstream>
using namespace std;
ofstream fout("permutari.out");
int n, a[100], f[100];
void Permutari(int k);
void Scrie(int k);
int main()
{
ifstream fin("permutari.in");
fin>>n;
Permutari(1);
fin.close();
fout.close();
return 0;
}
void Permutari(int k)
{
int i;
if (k==n+1)
{
Scrie(k-1);
return;
}
for (i=1;i<=n;i++)
{
a[k]=i;
if (!f[i])
{
f[i]=1;
Permutari(k+1);
f[i]=0;
}
}
}
void Scrie(int k)
{
int i;
for (i=1;i<=k;i++)
fout<<a[i]<<" ";
fout<<endl;
}