- #include <iostream> 
- using namespace std; 
-   
- void print_matrix(const double (&m)[4][5]) 
- { 
-     for(int i = 0; i < 4; ++i) 
-     { 
-         for(int j = 0; j < 5; ++j) 
-         { 
-             cout << m[i][j] << '\t'; 
-         } 
-         cout << endl; 
-     } 
- } 
-   
- int main() 
- { 
-     double m[4][5] =  
-     { 
-         {2, 3, 4, 5, 6}, 
-         {1, 0, 0, 6, 0}, 
-         {0, 0, 2, 9, -6}, 
-         {9, 8, 7, 6, 5}, 
-     }; 
-     print_matrix(m); 
-     return 0; 
- } 
-   
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