9) Write a C program that display memory allocation of input numbers using malloc(), calloc() and free().

source file name: Memory2.C 

#include <stdio.h>

#include <stdlib.h>

int   main()

{

 int *ptr, *ptr1;

int n, i;

       clrscr();

printf("Enter number of elements:\n");

scanf("%d",&n);

printf("\n memory allocted elements are %d\n ", n);

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

ptr1 = (int*)calloc(n, sizeof(int));

if (ptr == NULL || ptr1 == NULL) 

    {

printf("Memory not allocated.\n");

exit(0);

}

else 

    {

printf("Memory successfully allocated using malloc.\n");

free(ptr);

printf("Malloc Memory successfully freed.\n");

printf("\nMemory successfully allocated using calloc.\n");

free(ptr1);

printf("Calloc Memory successfully freed.\n");

}

//getch();

return 0;

}

output: