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- #include <iostream>
- using namespace std;
- int n;
- int x[100];
- char val[3];
- void afis()
- {
- for(int i=1;i<=n;i++)
- cout<<val[x[i]];
- cout<<endl;
- }
- void back(int k)
- {
- if(k==n)
- afis();
- else
- for(x[k]=1;x[k]<=2;x[k]++)
- back(k+1);
- }
- int main()
- {
- cin>>n;
- val[1]='.';
- val[2]='-';
- x[1]=1;x[n]=1;
- back(2);
- return 0;
- }
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