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- #include<iostream>
- #include<fstream>
- using namespace std;
- ifstream fin("siruri.in");
- ofstream fout("siruri.out");
- int st[10],n,m;
- int valid(int k)
- {
- for(int i=1;i<k;i++)
- if(st[k]==st[i]) return 0;
- if((st[k]<st[k-1] || st[k]-st[k-1]>2)&&k>1) return 0;
- return 1;
- }
- void afisare()
- {
- for(int i=1;i<=m;i++)
- fout<<st[i]<<" ";
- fout<<"\n";
- }
- void back(int k)
- {
- for(int i=1;i<=n;i++)
- {
- st[k]=i;
- if(valid(k))
- {
- if(k==m) afisare();
- else
- back(k+1);
- }
- }
- }
- int main()
- {
- fin>>n>>m;
- back(1);
- return 0;
- }
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