Record Case Detail

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 pwd: /out/package
ppid: 5545
   1: WRITELN echo 321 |
   2: WRITELN cat |
   3: WRITELN cat
   4: 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 $ > > 321

=================================================================
==5547==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 22 byte(s) in 5 object(s) allocated from:
    #0 0x4dca80  (/out/package/mumsh_memory_check+0x4dca80)
    #1 0x51785a  (/out/package/mumsh_memory_check+0x51785a)
    #2 0x7fe60791ab96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)

Direct leak of 6 byte(s) in 3 object(s) allocated from:
    #0 0x4dca80  (/out/package/mumsh_memory_check+0x4dca80)
    #1 0x5179e1  (/out/package/mumsh_memory_check+0x5179e1)
    #2 0x7fe60791ab96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)

SUMMARY: AddressSanitizer: 28 byte(s) leaked in 8 allocation(s).
mumsh $ 
=================================================================
==5546==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 22 byte(s) in 5 object(s) allocated from:
    #0 0x4dca80  (/out/package/mumsh_memory_check+0x4dca80)
    #1 0x51785a  (/out/package/mumsh_memory_check+0x51785a)
    #2 0x7fe60791ab96  (/lib/x86_

mumsh $ > > 321
mumsh $ exit

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