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Cod sursa(job #988004)
#include<fstream>
using namespace std;
ifstream in("permutari.in");
ofstream out("permutari.out");
bool k[10];
int n;
int s[10];
void perm(int p)
{
if(p == n+1)
{
for(int i=1; i<=n; i++)
out<<s[i]<<" ";
out<<'\n';
}
else
{
for(int i=1; i<=n; i++)
{
if(!k[i])
{
s[p] = i;
k[i] = 1;
perm(p+1);
k[i] = 0;
}
}
}
}
int main()
{
in>>n;
perm(1);
in.close();
out.close();
return 0;
}