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Cod sursa(job #616342)
#include<fstream>
using namespace std;
int x[19],n,i,k;
int valid(int k)
{
int i;
for(i=1;i<k;i++)
if(x[i]>=x[k])
return 0;
return 1;
}
int main()
{
ifstream f("combinari.in");
ofstream g("combinari.out");
f>>n>>k;
for(i=1;i<=k;i++)
x[i]=0;
i=1;
do
{
do
{
x[i]++;
if(x[i]>n)
{
x[i]=0;
i--;
}
else
if(valid(i))
i++;
}
while(i<=k&&i>0);
if(i>k)
{
for(i=1;i<=k;i++)
g<<x[i]<<" ";
i=k;
g<<"\n";
}
}
while(i>0);
return 0;
}