Question

what is dynamic array in c++ ?? how we can use it ??

Answer 1

A dynamic array is nothing simply an array data that can be resized.And the memory allocated for array is on heap instead of stack.We have to delete the array memory after using it,or in the end of the program it automatically deletes.The point is the memory allocated once is not destroyed as in case of static memory

Answer 2

A dynamic array is an array are created on the heap and they need to be allocated and freed by you once you use them since they are not part of the stack frame... C++ does not have a away of handling garbage collection that's why one has free the memory.