Record Case Detail

This function is in beta test. Please help improve it in the issues here.

/in/lab4.c:119:47: runtime error: index -1 out of bounds for type 'double [120]'
=================================================================
==47722==ERROR: AddressSanitizer: stack-buffer-underflow on address 0x7ffdb49e85b8 at pc 0x55834afd86f9 bp 0x7ffdb49e8500 sp 0x7ffdb49e84f0
READ of size 8 at 0x7ffdb49e85b8 thread T0
    #0 0x55834afd86f8 in reverse (/out/package/lab4+0xf6f8)
    #1 0x55834afd296b in main (/out/package/lab4+0x996b)
    #2 0x7fb04ae50b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #3 0x55834afd4069 in _start (/out/package/lab4+0xb069)

Address 0x7ffdb49e85b8 is located in stack of thread T0 at offset 24 in frame
    #0 0x55834afd5a2f in reverse (/out/package/lab4+0xca2f)

  This frame has 1 object(s):
    [32, 992) 'stack' <== Memory access at offset 24 underflows this variable
HINT: this may be a false positive if your program uses some custom stack unwind mechanism or swapcontext
      (longjmp and C++ exceptions *are* supported)
SUMMARY: AddressSanitizer: s

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.

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