What is Segmentation fault : 11?

Question

Can anyone explain to me what is "segmentation fault 11" error when i run my program?

Answer 1

Probably you are trying to access a place in the memory that is not availabe for you. could be that your pointer is going out of the range of declared variable

but it's hard to say when we can't see the code

Answer 2

This Error due to you're going out of allocated memory somewhere, The variable size is not declared or initialized, always be aware of this - is one of the major sources of error.