declare an array in c

// Array declaration by specifying size 
int arr1[10]; 
  
// With recent C/C++ versions, we can also 
// declare an array of user specified size 
int n = 10; 
int arr2[n]; 
// Array declaration by initializing elements 
int arr[] = { 10, 20, 30, 40 } 

// Compiler creates an array of size 4. 
// above is same as "int arr[4] = {10, 20, 30, 40}"
// Array declaration by specifying size and initializing 
// elements 
int arr[6] = { 10, 20, 30, 40 } 

// Compiler creates an array of size 6, initializes first 
// 4 elements as specified by user and rest two elements as 0. 
// above is same as "int arr[] = {10, 20, 30, 40, 0, 0}" 

int n,i;

//enter n

int **array = malloc(sizeof(int*)*n);

for(i=0;i<n;i++)
  array[i] = malloc(sizeof(int)*64);

 /* Do Stuffs*/


/* Free Memory */  
for(i=0;i<n;i++)
  free(array[i]);

free(array);

type arrayName [ arraySize ];

// Array declaration by specifying size 
int arr1[10]; 
  
// With recent C/C++ versions, we can also 
// declare an array of user specified size 
int n = 10; 
int arr2[n]; 
// Array declaration by initializing elements 
int arr[] = { 10, 20, 30, 40 } 

// Compiler creates an array of size 4. 
// above is same as "int arr[4] = {10, 20, 30, 40}"
// Array declaration by specifying size and initializing 
// elements 
int arr[6] = { 10, 20, 30, 40 } 

// Compiler creates an array of size 6, initializes first 
// 4 elements as specified by user and rest two elements as 0. 
// above is same as "int arr[] = {10, 20, 30, 40, 0, 0}" 

int arr[10]; // 10 is the size of the array