Question

How to print a specific column of a matrix in C++

Answer 1

#include <iostream>

#define COLS 4
 
void print_column(int matrix[][COLS], int rows, int col) {
    for (int i = 0; i < rows; i++) {
        std::cout << matrix[i][col] << " ";
    }
}
 
int main()
{
    int matrix[][COLS] = {
                    {3, 2, 5, 1},
                    {4, 7, 6, 5},
                    {9, 3, 0, 1}
    };
 
    int rows = sizeof(matrix) / sizeof(matrix[0]);
 
    print_column(matrix, rows, 1);
}
 
 
 
 
 
/*
 
run:
 
2 7 3 
 
*/

 

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