C program to Allocate space dynamically for the array

#include <stdio.h> 
 #include <conio.h> 
 #include <stdlib.h> 
 main() 
 { 
   int i, n; 
   int *arr; 
   clrscr(); 
   printf("\n Enter the number of elements "); 
   scanf ("%d", &n); 
   arr= (int*)malloc(n * sizeof(int)); 
    if(arr ==NULL) 
    { 
      printf("\n Memory Allocation Failed"); 
      exit(0); 
    } 
      for(i=0;i<n;i++) 
      { 
        printf("\n Enter the value %d of the array: ",i ); 
        scanf("%d", &arr[i]); 
      } 
       printf("\n The array contains \n"); 
        for (i=0; i<n; i++) 
              { 
               printf(" \n \t%d \t", arr[i]); 
               /*another way is to write *(arr+i)  */ 
              } 
 return 0; 
 }