Record Case Detail

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ASAN:DEADLYSIGNAL
=================================================================
==24711==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x5610afa0223a bp 0x602000008df0 sp 0x7ffeb3f28fc0 T0)
==24711==The signal is caused by a WRITE memory access.
==24711==Hint: address points to the zero page.
    #0 0x5610afa02239 in Dlist<int>::removeBack() (/out/package/sam_mem+0x5239)
    #1 0x5610afa006e8 in main (/out/package/sam_mem+0x36e8)
    #2 0x7fb554821b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #3 0x5610afa01ad9 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()
==24711==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.

1768811804 1479594232 
949561188 1768811804 1374349581 -1945567216 -2138814957 416165222 879273954 -931129342 -870493040 840647906 206095658 -2146690971 679179127 -2000648138 949507862 662561909

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