Record Case Detail

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 pwd: /out/package
ppid: 43511
   1: WRITELN ls -a | grep mum
   2: WRITELN exit

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 $ .
..
driver
mumsh
mumsh_memory_check
mumsh $ exit

=================================================================
==43512==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 4 byte(s) in 1 object(s) allocated from:
    #0 0x4dcfb0  (/out/package/mumsh_memory_check+0x4dcfb0)
    #1 0x51592c  (/out/package/mumsh_memory_check+0x51592c)
    #2 0x51a844  (/out/package/mumsh_memory_check+0x51a844)
    #3 0x51bf49  (/out/package/mumsh_memory_check+0x51bf49)
    #4 0x7ff255604b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)

SUMMARY: AddressSanitizer: 4 byte(s) leaked in 1 allocation(s).

mumsh $ mumsh
mumsh_memory_check
mumsh $ exit

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JOJ Answer