Question

How to declare and initialize a matrix with zeros in C++

Answer 1

#include <iostream>

#define ROWS 3
#define COLS 4
   
void print_matrix(int matrix[][COLS], int rows, int cols);
   
int main(void)
{
    int matrix[ROWS][COLS] = { {0}, {0} };
 
    print_matrix(matrix, ROWS, COLS);
}
   
void print_matrix(int matrix[][COLS], int rows, int cols) {
    for (int i = 0; i < rows; i++) {
        for (int j = 0; j < cols; j++) {
            std::cout << matrix[i][j] << " ";
        }
            
        std::cout << "\n";
    }
}
  
  
   
/* 
run:
   
0 0 0 0 
0 0 0 0 
0 0 0 0 
   
*/

 

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