how did you reproduce that, what is the case that crashes?

error didn't appear befor adding in this so I'm pretty sure that's it and I can't reproduce the error on my machine because it passes all the basic tests:

 if(word == "!" || word == "," || word == ".")
    {
        result += word;
    }

it didn't solve the issue

I (think I) know whitch part of the code creates the error I just don't know why

and this is the code that makes this error appear (word is always a string):

 if(word == "!" || word == "," || word == ".")
    {
        result += word;
    }

I'm a new c++ programmer, I haven't ever used a debugger, is there a guide you consider good (for me)?

i get this error, my code passes all the basic tests:

UndefinedBehaviorSanitizer:DEADLYSIGNAL
==1==ERROR: UndefinedBehaviorSanitizer: SEGV on unknown address 0x0000017f4000 (pc 0x7f24e8c24c71 bp 0x000000000001 sp 0x7ffe8bbd26e8 T1)
==1==The signal is caused by a READ memory access.
==1==WARNING: invalid path to external symbolizer!
==1==WARNING: Failed to use and restart external symbolizer!
#0 0x7f24e8c24c70 (/lib/x86_64-linux-gnu/libc.so.6+0x18ec70)
#1 0x7f24e96039dc (/usr/lib/x86_64-linux-gnu/libstdc++.so.6+0x13d9dc)
#2 0x4267a5 (/workspace/test+0x4267a5)
#3 0x429da0 (/workspace/test+0x429da0)
#4 0x427bae (/workspace/test+0x427bae)
#5 0x427709 (/workspace/test+0x427709)
#6 0x4272fb (/workspace/test+0x4272fb)
#7 0x446da5 (/workspace/test+0x446da5)
#8 0x42695d (/workspace/test+0x42695d)
#9 0x7f24e8ab7c86 (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
#10 0x4054d9 (/workspace/test+0x4054d9)

UndefinedBehaviorSanitizer can not provide additional info.
==1==ABORTING

It's fairly easy in python too btw, but I think there is a checking error about whitch I have already commented

Oh sry i changed it to main lol
TYSM

So basically I pass all of the tests, byt then this message appears in STDERR:
Traceback (most recent call last):
File "/workspace/default/tests.py", line 2, in
from solution import calculate
ImportError: cannot import name 'calculate' from 'solution' (/workspace/default/solution.py)

and it won't accept my code even tho I passed all of the tests.
Pls help I was rly hype, cuz it's my first lvl 4 cata :)
I can send you my code for debugging purposes if it turns out it's somhow not my mistake lol.

This code passes all of basic and advanced test, but fail some of the random ones, and I don't know why.
def type_validation(variable, _type):
a = str(type(variable))
a = a.removeprefix("<class '")
a = a.removesuffix("'>")
return _type == a