.

This isn't an issue. An issue is a bug with a kata. This problem is caused by your code. Your code crashes when the input is an empty vector.

I think this kata should be at level 7, but not at level 6

i get this error over and over

UndefinedBehaviorSanitizer:DEADLYSIGNAL
==1==ERROR: UndefinedBehaviorSanitizer: SEGV on unknown address 0x000000000000 (pc 0x000000425435 bp 0x7ffc2eb9db58 sp 0x7ffc2eb9db40 T1)
==1==The signal is caused by a READ memory access.
==1==Hint: address points to the zero page.
==1==WARNING: invalid path to external symbolizer!
==1==WARNING: Failed to use and restart external symbolizer!
#0 0x425434 (/workspace/test+0x425434)
#1 0x427ec4 (/workspace/test+0x427ec4)
#2 0x42679e (/workspace/test+0x42679e)
#3 0x4262fa (/workspace/test+0x4262fa)
#4 0x425ebb (/workspace/test+0x425ebb)
#5 0x42af95 (/workspace/test+0x42af95)
#6 0x4255cd (/workspace/test+0x4255cd)
#7 0x7f575501fc86 (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
#8 0x4044d9 (/workspace/test+0x4044d9)

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

how long did it take to reach your rank and do you code professionally

It mentions 3 different input values in the description and it shows 3 arguments in the initial code, could you clarify what do you mean?

you dont make it very obvious that the numbers can be more than one