Difference Between Static and Dynamic Memory Allocation?

Memory allocation in programming is very important for storing values when you assign them to variables. The allocation is done either before or at the time of program execution. This eventually allocates memory for the variables declared by a programmer via the compiler.

The major difference between static and dynamic memory allocations are:

Static Memory AllocationDynamic Memory Allocation
In this case, variables get allocated permanentlyIn this case, variables get allocated only if your program unit gets active
Allocation is done before program executionAllocation is done during program execution
It uses the data structure called stack for implementing static allocationIt uses the data structure called heap for implementing dynamic allocation
Less efficientMore efficient
There is no memory reusabilityThere is memory reusability and memory can be freed when not required

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