Record Case Detail

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 pwd: /out/package
ppid: 5327
   1: WRITELN echo 321 |
   2: WRITELN cat |
   3: WRITELN cat
   4: WRITELN exit
exit: 0

Your answer may be identical to the JOJ answer in the first several lines.

However, you will still get Wrong Answer because the complete output may be longer and there might be errors in the future lines.

Please double check your code to solve this problem and try again.

mumsh $ jojo.c:297:29: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/unistd.h:582:14: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior jojo.c:297:29 in 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==5330==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x7f64410e84b0 bp 0x7ffe572cfc30 sp 0x7ffe572cfba0 T0)
==5330==The signal is caused by a READ memory access.
==5330==Hint: address points to the zero page.
    #0 0x7f64410e84af  (/lib/x86_64-linux-gnu/libc.so.6+0xe54af)
    #1 0x51c427  (/out/package/mumsh_memory_check+0x51c427)
    #2 0x51533c  (/out/package/mumsh_memory_check+0x51533c)
    #3 0x7f6441024b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #4 0x41cc69  (/out/package/mumsh_memory_check+0x41cc69)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xe54af) 
==5330==A

mumsh $ > > 321
mumsh $ exit

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Your Answer

JOJ Answer