Record Case Detail

Notes

This function is in beta test. Please help improve it in the issues here.

Stderr

=================================================================
==28908==ERROR: AddressSanitizer: attempting free on address which was not malloc()-ed: 0x7ffc5e570690 in thread T0
    #0 0x7f26aa0839c8 in operator delete(void*, unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xe19c8)
    #1 0x56536e07f818 in Dlist<int>::removeFront() (/out/package/dlist_mem+0x19818)
    #2 0x56536e07fee9 in Dlist<int>::removeAll() (/out/package/dlist_mem+0x19ee9)
    #3 0x56536e07c146 in case4() (/out/package/dlist_mem+0x16146)
    #4 0x56536e07a121 in main (/out/package/dlist_mem+0x14121)
    #5 0x7f26a8910b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #6 0x56536e07a6c9 in _start (/out/package/dlist_mem+0x146c9)

Address 0x7ffc5e570690 is located in stack of thread T0 at offset 208 in frame
    #0 0x56536e07bf7f in case4() (/out/package/dlist_mem+0x15f7f)

  This frame has 2 object(s):
    [32, 48) 'list1'
    [96, 112) 'list2' <== Memory access at offset 208 overflows this variable
HINT: thi

Hints

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.

Your Answer


        

JOJ Answer

Test success.