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Cod sursa(job #448379)
#include<fstream>
using namespace std;
ifstream f("permutari.in");
ofstream g("permutari.out");
int n,v[10];
void afisare()
{
for(int k=1;k<=n;k++)
g<<v[k]<<" ";
g<<'\n';
}
int gasit(int k,int i)
{
for(int p=1;p<=i;p++)
if(v[p]==k)
return 1;
return 0;
}
void bkt(int i)
{
int k;
if(i>n)
afisare();
else
{
for(k=1;k<=n;k++)
if(!gasit(k,i)) {v[i]=k;bkt(i+1);}
}
}
int main()
{
f>>n;
bkt(1);
}