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- #include <iostream>
- using namespace std;
- int matrice[101][101],caract[1000001];
- int linii,col,i,j;
- int main()
- {
- cin>>linii>>col;
- for(i=1;i<=linii;i++)
- for(j=1;j<=col;j++)
- cin>>matrice[i][j];
- //elementele de pe prima sau ultima coloana
- for(i=1;i<=linii;i++)
- {
- caract[matrice[i][1]]=1;
- caract[matrice[i][col]]=1;
- }
- for(i=1;i<=col;i++)
- {
- caract[matrice[1][i]]=1;
- caract[matrice[linii][i]]=1;
- }
- for(i=1;i<=1000000;i++)
- if(caract[i]==1)
- cout<<i<<" ";
- return 0;
- }
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