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Cod sursa(job #162151)
#include<fstream.h>
int s[9],uz[9],n,k;
ofstream g("permutari.out");
void tipar()
{int i;
for(i=1;i<=n;i++) g<<s[i]<<" ";
g<<'\n';
}
void bkt(int k)
{int i;
if(k>n) tipar();
else
for(i=1;i<=n;i++)
if(!uz[i])
{s[k]=i;uz[i]=1;
bkt(k+1);
uz[i]=0;
}
}
int main()
{ifstream f("permutari.in");
f>>n;f.close();
bkt(1);
g.close();
return 0;
}