📊⚡Beginner

Print a 2D Array

Display 2D array elements

A 2D array (matrix) is an array of arrays. It stores elements in rows and columns. To print a 2D array, we use nested loops - outer loop for rows, inner loop for columns.

📊 2D Array Structure

[0][0][0][1][0][2][0][3][1][0][1][1][1][2][1][3][2][0][2][1][2][2][2][3]

C Program to Print a 2D Array

print_2d_array.c

1#include <stdio.h>
2
3int main() {
4    int rows = 3, cols = 4;
5    
6    // Initialize 2D array
7    int arr[3][4] = {
8        {1, 2, 3, 4},
9        {5, 6, 7, 8},
10        {9, 10, 11, 12}
11    };
12    
13    printf("2D Array Elements:\n");
14    
15    // Nested loops to print
16    for (int i = 0; i < rows; i++) {
17        for (int j = 0; j < cols; j++) {
18            printf("%4d ", arr[i][j]);
19        }
20        printf("\n");  // New line after each row
21    }
22    
23    return 0;
24}

Output

2D Array Elements:

1 2 3 4

5 6 7 8

9 10 11 12

📖 Code Explanation

Code	Explanation
int arr[3][4]	Declare 2D array with 3 rows and 4 columns
for (i = 0; i < rows)	Outer loop iterates through rows
for (j = 0; j < cols)	Inner loop iterates through columns
arr[i][j]	Access element at row i, column j