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Cod sursa(job #941474)
#include<fstream>
using namespace std;
int a[20],n,m;
ifstream f("combinari.in");
ofstream g("combinari.out");
void afisare()
{
int i;
for (i=1;i<=m;i++)
g << a[i] << ' ';
g << "\n";
}
void back(int k)
{
int i;
if (k==m+1)
{
afisare();
return;
}
for (i=a[k-1]+1;i<=n;i++)
{
a[k]=i;
back(k+1);
}
}
int main()
{
f >> n >> m;
back(1);
return 0;
}