Record Case Detail

Notes

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

Stderr

/in/DlistImpl.h:66:5: runtime error: member access within null pointer of type 'struct node'
ASAN:DEADLYSIGNAL
=================================================================
==30248==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000008 (pc 0x55c46ad8e0b2 bp 0x6030000000d0 sp 0x7ffe71bc7b50 T0)
==30248==The signal is caused by a WRITE memory access.
==30248==Hint: address points to the zero page.
    #0 0x55c46ad8e0b1 in Dlist<Instr>::removeFront() (/out/package/sam_mem+0x150b1)
    #1 0x55c46ad892be in main (/out/package/sam_mem+0x102be)
    #2 0x7fe0e93ddb96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #3 0x55c46ad8b4d9 in _start (/out/package/sam_mem+0x124d9)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/out/package/sam_mem+0x150b1) in Dlist<Instr>::removeFront()
==30248==ABORTING

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

PUSHI 5
0 7 5 
STORE HALT 
8 7 4 1 0 8 6 3 2 7 3 6 9 6 0 2 
STORE
0 
HALT 
8 7 4 1 0 7 6 3 2 7 3 6 9 6 0 2 
HALT
0 

8 7 4 1 0 7 6 3 2 7 3 6 9 6 0 2