Explain static and dynamic memory allocation with an example each.

Correct Answer: When amount of memory to be allocated is known beforehand ie at the the time of compilation, it is known as Static Memory Allocation Once the memory is allocated statically, it cannot be deallocated during program run So it leads to wastage of storage space Example: int A[100]; When amount of memory to be allocated is not known beforehand, rather it is determined at the time of program run, it is called Dynamic Memory Allocation It leads to efficient utilization of storage space Example: cout << " Enter number of elements: "; cin >> N; int *A = new int[N]; // dynamic memory allocation