why does this code always cause Segmentation fault......

Question

may be it is able to run on sololearn normally but as long as on my IDE,it gets mad🌚
https://code.sololearn.com/cwPPeirS6oyE/?ref=app

Answer 1

You are using mid as the length of store, but you haven't initialized it.

mid and sbs are basically unused here.

instead of inn - (inn/10)*10, you can use inn%10.

Answer 2

It seems like you want to sum the digits of your input, you don't need store at all, just do the sum right away.

Answer 3

Sure, but you don't really need pointers here. Also, you have to understand that you need to assign a value to a variable before using it, otherwise it will contain a garbage value that doesn't correspond to anything.

Remove sbs, store, and cont, and do the sum with deld1 in your first loop.

Answer 4

If you're still stuck, here is the solution:
https://code.sololearn.com/cgLvmu38kRwA/?ref=app

Answer 5

Zen as you can see the new edition,i change it as you told me but it don't output anything now.....

Answer 6

Zen Yeah, you're right, but from this code i want to know the reason for which My code make this mistake,And the true use of the pointers. May I take more of your time?

Answer 7

thanks a lot for your patience:)

Answer 8

Zen thanks a lot for your patience.your code is really helpful:)