What happens if the statement free(a) is removed in the following C code?         int *a;     a=(int*)malloc(sizeof(int));     *a=100;     printf("*a%d",*a);     free(a);     Question 4 options:   Error   Memory Leak   Dangling Pointers   Segmentation Fault

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A: I have provided code by rephrasing this code. In which purpose and output is same.

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Q: Describe Operations on Pointer Variables.

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A: Solution :

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Concept of Pointer Parameter

Pointers are the special variable that stores the variable address, instead of storing the variable value. Pointer is a powerful feature of a programming language. A pointer is mostly used to save memory space and improve execution time.