Record Case Detail

This function is in beta test. Please help improve it in the issues here.

100 str
0 append EjqhR2yJM HmA
1 print
2 append HQ4lE1siJC owvM
/in/dlist.c:261:14: runtime error: member access within null pointer of type 'node_t' (aka 'struct linked_node')
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /in/dlist.c:261:14 in 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==211==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000010 (pc 0x0000005169d2 bp 0x7ffd019fc4d0 sp 0x7ffd019fc480 T0)
==211==The signal is caused by a WRITE memory access.
==211==Hint: address points to the zero page.
    #0 0x5169d1  (/out/package/main+0x5169d1)
    #1 0x515327  (/out/package/main+0x515327)
    #2 0x7f8481639b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #3 0x41cac9  (/out/package/main+0x41cac9)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/out/package/main+0x5169d1) 
==211==ABORTING

Your answer may be identical to the JOJ answer in the first several lines.

However, the main problem you meet now is Runtime Error. And the exit code of your program is 1, which should be 0.

Please double check your code to solve this problem and try again.

0
1
EjqhR2yJM=HmA
2
3
4
5
6
7
8
9
EjqhR2yJM=HmA
HQ4lE1siJC=owvM
DjVatRJU7LFw=kqv
KgtX0TGCsjHc=cwTk6
j7Q8qLnUdlGE=7oG2k
jav9cxVS8mT=J0G
z5MjQ3mhPCx=X0quv
Au9DBKMPHIQ1=fuB
j7Q8qLnUdlGE=7oG2k
EjqhR2yJM=HmA
jav9cxVS8mT=J0G
z5MjQ3mhPCx=X0quv
KgtX0TGCsjHc=cwTk6
Au9DBKMPHIQ1=fuB
DjVatRJU7LFw=kqv
HQ4lE1siJC=owvM
10
11
12
13
14
15
16
17
18
EjqhR2yJM=HmA
HQ4lE1siJC=owvM
DjVatRJU7LFw=kqv
KgtX0TGCsjHc=cwTk6
j7Q8qLnUdlGE=7oG2k
jav9cxVS8mT=J0G
z5MjQ3mhPCx=X0quv
Au9DBKMPHIQ1=fuB
vsakfG=lz6sI
HjnF84wsO=wBi
p6wHc=Rmt
TAlr02vBVwM9J=bp5a
aQgJsy=2lv
AvCsh5KL=erN7y
klVjFOuRMWc=m9B
d2vnIfOKG1PuFl=el2
HjnF84wsO=wBi
HQ4lE1siJC=owvM
klVjFOuRMWc=m9B
vsakfG=lz6sI
DjVatRJU7LFw=kqv
Au9DBKMPHIQ1=fuB
AvCsh5KL=erN7y
d2vnIfOKG1PuFl=el2
KgtX0TGCsjHc=cwTk6
TAlr02vBVwM9J=bp5a
z5MjQ3mhPCx=X0quv
p6wHc=Rmt
jav9cxVS8mT=J0G
EjqhR2yJM=HmA
j7Q8qLnUdlGE=7oG2k
aQgJsy=2lv
19
20
21
22
23
EjqhR2yJM=HmA
HQ4lE1siJC=owvM
DjVatRJU7LFw=kqv
KgtX0TGCsjHc=cwTk6
j7Q8qLnUdlGE=7oG2k
jav9cxVS8mT=J0G
z5MjQ3mhPCx=X0quv
Au9DBKMPHIQ1=fuB
vsakfG=lz6sI
HjnF84wsO=wBi
p6wHc=R

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JOJ Answer