how to declare array in c code example

Example 1: take array as input in c

int size=5;
int array[size]; // array of size=5;

for(i=0;i<size;i++){
   scanf("%d",&array[i]);
                }

Example 2: array of array in c

int a[3][4] = {  
   {0, 1, 2, 3} ,   /*  initializers for row indexed by 0 */
   {4, 5, 6, 7} ,   /*  initializers for row indexed by 1 */
   {8, 9, 10, 11}   /*  initializers for row indexed by 2 */
};

Example 3: c language array

int array[5]={1,2,3,4,5};