Notes
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ASAN:DEADLYSIGNAL
=================================================================
==7507==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x559a474d723a bp 0x602000000030 sp 0x7ffd0fd33910 T0)
==7507==The signal is caused by a WRITE memory access.
==7507==Hint: address points to the zero page.
#0 0x559a474d7239 in Dlist<int>::removeBack() (/out/package/sam+0x5239)
#1 0x559a474d4f8b in main (/out/package/sam+0x2f8b)
#2 0x7f69f8ebab96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#3 0x559a474d6ad9 in _start (/out/package/sam+0x4ad9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/out/package/sam+0x5239) in Dlist<int>::removeBack()
==7507==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
NOR -7 PUSHI 6 STORE NOOP PUSHI 12 LOAD PUSHI 4 STORE PUSHI 5 PUSHI 5 STORE PUSHI 15 LOAD PUSHI 0 PUSHI 15 STORE HALT 7 2 5 9 7 4 4 5 8 7 9 2 9 2 6 4 PUSHI 6 -7 6 STORE NOOP PUSHI 12 LOAD PUSHI 4 STORE PUSHI 5 PUSHI 5 STORE PUSHI 15 LOAD PUSHI 0 PUSHI 15 STORE HALT 7 2 5 9 7 4 4 5 8 7 9 2 9 2 6 4 STORE NOOP PUSHI 12 LOAD PUSHI 4 STORE PUSHI 5 PUSHI 5 STORE PUSHI 15 LOAD PUSHI 0 PUSHI 15 STORE HALT 7 2 5 9 7 4 -7 5 8 7 9 2 9 2 6 4 NOOP PUSHI 12 LOAD PUSHI 4 STORE PUSHI 5 PUSHI 5 STORE PUSHI 15 LOAD PUSHI 0 PUSHI 15 STORE HALT 7 2 5 9 7 4 -7 5 8 7 9 2 9 2 6 4 PUSHI 12 12 LOAD PUSHI 4 STORE PUSHI 5 PUSHI 5 STORE PUSHI 15 LOAD PUSHI 0 PUSHI 15 STORE HALT 7 2 5 9 7 4 -7 5 8 7 9 2 9 2 6 4 LOAD 9 PUSHI 4 STORE PUSHI 5 PUSHI 5 STORE PUSHI 15 LOAD PUSHI 0 PUSHI 15 STORE HALT 7 2 5 9 7 4 -7 5 8 7 9 2 9 2 6 4 PUSHI 4 9 4 STORE PUSHI 5 PUSHI 5 STORE PUSHI 15 LOAD PUSHI 0 PUSHI 15 STORE HALT 7 2 5 9 7 4 -7 5 8 7 9 2 9 2 6 4 STORE PUSHI 5 PUSHI 5 STORE PUSHI 15 LOAD PUSHI 0 PUSHI 15 STORE HALT 7 2 5