Runtime error in the following code

Question

The following code,according to me should run successfully,but fails at runtime.I don\'t get the reason:

 void main()
 {
   int arr[5][3]={1,2,3,4,5,6,7,8,9,10,1         


        

Answer 1

int **p=&m;

p points to address, where m is placed:

... |  m  | sth | ... |  p  | ...
       ^                 V
       |_________________|

Now, increment it:

... |  m  | sth | ... |  p  | ...
             ^           V
             |___________|

So, now p points to sth. What is sth? Nobody knows. But you're trying to get access to the address sth contains. This is undefined behavior.