Record Case Detail

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ASAN:DEADLYSIGNAL
=================================================================
==24697==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x55ebaa08823a bp 0x60200000e470 sp 0x7ffd456c48e0 T0)
==24697==The signal is caused by a WRITE memory access.
==24697==Hint: address points to the zero page.
    #0 0x55ebaa088239 in Dlist<int>::removeBack() (/out/package/sam_mem+0x5239)
    #1 0x55ebaa086a17 in main (/out/package/sam_mem+0x3a17)
    #2 0x7fcbac0a6b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #3 0x55ebaa087ad9 in _start (/out/package/sam_mem+0x4ad9)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/out/package/sam_mem+0x5239) in Dlist<int>::removeBack()
==24697==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.

782621129 
1613289321 76041863 76041863 -1542713344 76041863 782621129 151956898 1704961213 248084418 -1938562288 1319510181 -1938562288 441257722 782621129 -1609039859 2055872929

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