C Two-Dimensional Arrays

A two-dimensional array is an array of dimension 2 (we can also call a 2D array), which is a collection of elements accessed using two subscript expressions. For example, let’s call them rows and cols. A two-dimensional array is also called an array of single-dimensional arrays.

Declare 2D Array

The general syntax to declare 2D Array is:

<data type> <array name>[rows][cols];

int arr[2][2];

The array index in both dimensions starts with 0.

Example

#include<stdio.h>
void main(void){
// 2D Array declaration
int arr[2][2];
int i,j;
printf(“Enter Array elements:= “);
for(i = 0;i<2;i++){
for(j=0;j<2 ;j++) {
scanf(“%d”,&arr[i][j]); }
}

for(i = 0;i<2;i++){
for(j=0;j<2;j++) {
printf(“Array element = %d\n”,arr[i][j]);
}
}

}