Record Case Detail

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10 int
0 append vP3cQpMzLCmd -35084
/in/dlist.c:25:15: runtime error: member access within null pointer of type 'node_t' (aka 'struct node')
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /in/dlist.c:25:15 in 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==162==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000010 (pc 0x000000515898 bp 0x7ffca3642570 sp 0x7ffca3642520 T0)
==162==The signal is caused by a READ memory access.
==162==Hint: address points to the zero page.
    #0 0x515897  (/out/package/main+0x515897)
    #1 0x515367  (/out/package/main+0x515367)
    #2 0x7fc3c8c28b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #3 0x41cb09  (/out/package/main+0x41cb09)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/out/package/main+0x515897) 
==162==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
false
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9
vP3cQpMzLCmd=-35084
hLQj5n68HzIy=49453
kEey1tihW5RKzV=45500
NBqFejKT=-42778
hWQ8lF=56352
6czWb9qQeVB=-28268
9E3Goachd8JA=64267
Vd53hgpyIqxv=54270

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