#include <stdio.h>
      int main()
      {
          printf("\n\n\t\tStudytonight - Best place to learn\n\n\n");
          int n, i, *ptr, sum = 0;
          printf("\n\nEnter number of elements: ");
          scanf("%d", &n);
          // dynamic memory allocation using malloc()
          ptr = (int *) malloc(n*sizeof(int));
          if(ptr == NULL) // if empty array
          {
              printf("\n\nError! Memory not allocated\n");
              return 0;   // end of program
          }
          printf("\n\nEnter elements of array: \n\n");
          for(i = 0; i < n; i++)
          {
              // storing elements at contiguous memory locations
              scanf("%d", ptr+i);    
              sum = sum + *(ptr + i);
          }
          // printing the array elements using pointer to the location
          printf("\n\nThe elements of the array are: ");
          for(i = 0; i < n; i++)
          {
              printf("%d  ",ptr[i]);    // ptr[i] is same as *(ptr + i)
          }
          /* 
              freeing memory of ptr allocated by malloc 
              using the free() method
          */
          free(ptr);
          printf("\n\n\t\t\tCoding is Fun !\n\n\n");
          return 0;
      }
      
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