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Cod sursa(job #864951)
#include <fstream>
using namespace std;
ifstream f("combinari.in");
ofstream g("combinari.out");
int x[100],n,m;
void afisare (int k)
{
int i;
for(i=1; i<=k; i++) g << x[i] << " ";
g << "\n";
}
int valid (int k)
{
int i;
for(i=1; i<=k-1; i++)
if(x[k]<=x[i]) return 0;
return 1;
}
void back (int k)
{
int i;
for (i=1; i<=n; i++)
{x[k]=i;
if (valid(k))
if(k==m) afisare(k);
else back(k+1);
}
}
int main ()
{
f >> n >> m;
back(1);
return 0;
}