Record Case Detail

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 pwd: /out/package
ppid: 3726
   1: WRITELN > abc | | grep 123
   2: WRITELN exit
exit: 1

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.

mumsh $ error: missing program
mumsh $ exit

=================================================================
==3727==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 800 byte(s) in 1 object(s) allocated from:
    #0 0x4dce00  (/out/package/mumsh_memory_check+0x4dce00)
    #1 0x515ab5  (/out/package/mumsh_memory_check+0x515ab5)
    #2 0x7ff629eb8b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)

SUMMARY: AddressSanitizer: 800 byte(s) leaked in 1 allocation(s).

mumsh $ error: missing program
mumsh $ exit

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