cpp

Allocating an array

int myarray[100]; int *myarray = new int[100];

Feature	int myarray[100];	*int myarray = new int[100];
Memory Region	Stack	Heap (Dynamic Store)
Allocation Speed	Very fast (just moves the stack pointer).	Slower (requires finding free memory).
Cleanup	Automatic (when scope ends).	Manual (requires delete[]).
Size Limit	Limited (Small stack size).	Very Large (System RAM).
Variable Size	No (Size must be constant).	Yes (Size can be a variable).
Safety	Safe from leaks, risky for overflows.	Risky for leaks (if delete[] is forgotten).