Two Dimensional Array in C

A two-dimensional (2D) array is a multi-dimensional data structure that stores data in rows and columns, similar to a table or matrix.This is a simple C program that demonstrates how to work with a 2D array and iterate through its elements to print them.

Example : print_2darray.c

#include <stdio.h>

int main() {
  int rows, cols;
  
  // Input dimensions of the 2d array
  printf("Enter the number of rows: ");
  scanf("%d", &rows);
  printf("Enter the number of columns: ");
  scanf("%d", &cols);
  
  int array[rows][cols];
  
  // Input elements of the 2d array
  printf("Enter the elements of the 2D array:\n");
  for (int i = 0; i < rows; i++) {
   for (int j = 0; j < cols; j++) {
     printf("Enter element at [%d][%d]: ", i, j);
     scanf("%d", &array[i][j]);
   }
  }
  
  // Print the 2d array
  printf("\nThe 2D array is:\n");
  for (int i = 0; i < rows; i++) {
   for (int j = 0; j < cols; j++) {
     printf("%d ", array[i][j]);
   }
   printf("\n");
  }
  
  return 0;
}

Output:

Enter the number of rows: 2
Enter the number of columns: 3
Enter the elements of the 2D array:
Enter element at [0][0]: 1
Enter element at [0][1]: 2
Enter element at [0][2]: 3
Enter element at [1][0]: 4
Enter element at [1][1]: 5
Enter element at [1][2]: 6

The 2D array is:
1 2 3
4 5 6

Basic

Switch Case

Goto

Operators

if Statement

Nested if

While Loop

For Loop

Array

2D Array

Patterns

Excersises