- #include<iostream> 
- #include<vector> 
- using namespace std; 
-   
- void imprime(vector<vector<double>> X) { 
-     int linhas  = X.size(); 
-     for (int i = 0; i < linhas; i++) { 
-         int colunas = X[0].size(); 
-         for (int j = 0; j < colunas; j++) cout << X[i][j] << "\t"; 
-         cout << endl; 
-     } 
- } 
-   
- int main() { 
- 	vector<vector<double>> X { 
- 	        {1.0, 2.0, 3.0,2.5}, 
- 	        {2.0, 5.0,-1.0,2.0}, 
- 	        {-1.5,2.7,3.3,-0.8} 
- 	}; 
- 	imprime(X); 
- } 
-   
- //https://pt.stackoverflow.com/q/451932/101 
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