Question

How to iterate over a matrix (2D array) in C

Answer 1

#include <stdio.h>

#define ROW 5
#define COL 4

int main(void) {
    int matrix[ROW][COL] = {
                {1, 2, 3, 4},
                {5, 6, 7, 8},
                {9, 0, 1, 2},
                {6, 8, 1, 9},
                {7, 3, 4, 3}
    };
    
    for (int i = 0; i < ROW; i++) {
        for (int j = 0; j < COL; j++) {
            printf("%d ", matrix[i][j]);
        }
        printf("\n");
    }

    return 0;
}



/*
run:

1 2 3 4 
5 6 7 8 
9 0 1 2 
6 8 1 9 
7 3 4 3 

*/

 

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