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/in/DlistImpl.h:79:9: runtime error: member access within misaligned address 0xbebebebebebebebe for type 'struct node', which requires 8 byte alignment
0xbebebebebebebebe: note: pointer points here
<memory cannot be printed>
ASAN:DEADLYSIGNAL
=================================================================
==20074==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x561aa06d621a bp 0x603000000010 sp 0x7ffd69405f90 T0)
==20074==The signal is caused by a READ memory access.
==20074==Hint: address points to the zero page.
    #0 0x561aa06d6219 in Dlist<int>::removeBack() (/out/package/sam_mem+0x1b219)
    #1 0x561aa06d231d in select_task(Stack&, Queue&, int*, Instr const&, bool) (/out/package/sam_mem+0x1731d)
    #2 0x561aa06cf122 in main (/out/package/sam_mem+0x14122)
    #3 0x7fbc374abb96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #4 0x561aa06d0039 in _start (/out/package/sam_mem+0x15039)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SE

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.

1710200655 
1408246058 2113828593 1603099208 -1264042414 -2077875004 890616150 1262993833 67934061 275150162 890616150 553277236 542146867 -2113828854 -2079837616 1861067855 2108040417

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