How could it be possible to read and write past the array

Question

Output of the program:

#include 

int main()
{
    int size;

    printf(\"Enter the size of array: \");
    scanf(\"%d\",&size);

    i         


        

Answer 1

By reading and writing past the array, your program invokes undefined behavior. It doesn't mean that it has to crash or print garbage values, it can pretend working fine. Apparently, that's what is happening in this case.