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Cod sursa(job #518999)
#include<fstream>
#define dim 101
using namespace std;
ifstream f("permutari.in");
ofstream g("permutari.out");
int a[dim],uz[dim];
int n;
void afiseaza()
{
int i;
for(i=1;i<=n;i++)
g<<a[i]<<" ";
g<<"\n";
}
void gen(int k)
{
int i,j;
if(k==n+1)
afiseaza();
else
for(i=1;i<=n;i++)
if(uz[i]==0)
{
uz[i]=1;
a[k]=i;
gen(k+1);
uz[i]=0;
}
}
int main()
{
int i;
f>>n;
for(i=1;i<=n;i++)
uz[i]=0;
gen(1);
return 0;
}