Record Case Detail

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ASAN:DEADLYSIGNAL
=================================================================
==24694==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x55c77dde223a bp 0x602000004d50 sp 0x7ffdadc49990 T0)
==24694==The signal is caused by a WRITE memory access.
==24694==Hint: address points to the zero page.
    #0 0x55c77dde2239 in Dlist<int>::removeBack() (/out/package/sam_mem+0x5239)
    #1 0x55c77dde0bf0 in main (/out/package/sam_mem+0x3bf0)
    #2 0x7f2d5025ab96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #3 0x55c77dde1ad9 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()
==24694==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.

2106607265 
2008170449 2106607265 696494789 1922996088 1206796592 2078592849 2008170449 987260430 1426401410 2128099529 1030192639 2114244685 1607996649 -2142486486 1490980803 2008170449

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