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Cod sursa(job #668367)
#include <fstream>
#include <iostream>
using namespace std;
ofstream g;
long s[11],n,k;
void bt(long k)
{
long i,j;
bool ok;
if (k==n) {for (i=1;i<=n;i++) g<<s[i]<<' ';
g<<endl;}
else for (i=1;i<=n;i++)
{ok=true;
for (j=1;j<=k;j++)
if (s[j]==i) {ok=false; break;}
if (ok) {s[k+1]=i; bt(k+1);}
}
}
int main()
{
ifstream f("permutari.in");
f>>n;
f.close();
g.open("permutari.out");
bt(0);
g.close();
return 0;
}