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Cod sursa(job #693873)
#include<fstream>
using namespace std;
ifstream f("permutari.in");
ofstream g("permutari.out");
int sol[10];
bool v[10];
void afis(int n)
{
int i;
for(i=1; i<=n; i++)
g<<sol[i]<<" ";
g<<'\n';
}
void back(int k, int n)
{
int i;
if(k>n)
afis(n);
else
for(i=1; i<=n; i++)
if(v[i]==0)
{
sol[k]=i;
v[i]=1;
back(k+1,n);
v[i]=0;
}
}
int main()
{
int n;
f>>n;
back(1,n);
}