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- #include <iostream>
- #include <cmath>
- #include <fstream>
- using namespace std;
- ifstream fin("sirab.in");
- ofstream fout("sirab.out");
- int st[11],n,m;
- bool gasit_solutie = 0;
- void afis(int k)
- {
- int i;
- for(i=1;i<=k;i++)
- {
- fout<<st[i]<<" ";
- }
- fout<<"\n";
- }
- int valid(int k)
- {
- int i;
- for(i=1;i<k;i++)
- {
- int x=st[i]+st[k];
- int y=abs(st[i]-st[k]);
- if(x%y!=0)return 0;
- }
- return 1;
- }
- void bkt(int k)
- {
- for(int i=st[k-1]+1;i<=n;i++)
- {
- st[k]=i;
- if(k<=m&&valid(k)==1)
- {
- if(k==m) afis(k),gasit_solutie = 1;
- else bkt(k+1);
- }
- }
- }
- int main()
- {
- fin>>n>>m;
- bkt(1);
- if(gasit_solutie==0)fout << 0;
- return 0;
- }
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