Could you tell how to fix the problem with segmentation fault core damped?

Question

When we run this code in gcc cygwin, up to 2 nodes this program works fine, but when we define 3rd node the gcc compiler show : segmentation fault core damped (I gues this code does not work on sololearn, so it is better to test in desktop or in laptop):
https://code.sololearn.com/c7Gn4AAu085q/#c

Answer 1

I found it
in your tree nodes when you allocate memory you set just key and value

there is left and right pointers must be set to null

use calloc instead of malloc to initilize the memory to zero (and NULL)
or set it manually like
tmp->left->left=tmp-left-right=NULL;
I just changed malloc to calloc in your code and it is done

Answer 2

tru to use debugger to see where is the bug at runtime
or show me the code

Answer 3

https://code.sololearn.com/chs53IDPAGh4/?ref=app

Answer 4

That happens when you access memory that is not yours. For example you use a pointer after freeing, you dereference an invalid pointer, you read past array bounds, that sort of thing.
Really hard to tell without looking at the code.

Answer 5

install codeblocks , it is good and helpful
also it is easy to install

Answer 6

yes it needs but all of that comes together in one package

Answer 7

http://www.codeblocks.org/

Answer 8

you're welcome 🤩

Answer 9

Schindlabua now please see the attached link of the code

Answer 10

ABADA S would you help to install an ide with debugger that can be installed on e disk that is not the main disk c

Answer 11

ABADA S does it need mingw? or gcc or something like this?

Answer 12

ABADA S how much memory does it need and can it be installed in e disk which is not the operational system disk?

Answer 13

ABADA S would you send a link of the code blocks that you are using?)

Answer 14

ABADA S thanks, bro!)

Answer 15

ABADA S would you send your modification please?)

Answer 16

ABADA S By the way therealso trouble in contains_key, it returns 0 ifit contains key and also there is similar trouble with get_value

Answer 17

Examine the core file with gdb using your binary as reference. I can't do it either. On the train myself 😉.

Answer 18

I'm on a train at the moment so I can't check with gcc and gdb, I'm sorry :/ Maybe someone else can step in..