Record Case Detail

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

/in/lab4.c:272:52: runtime error: index -1 out of bounds for type 'double [120]'
=================================================================
==47820==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffd98d253f8 at pc 0x5628e24bbe7b bp 0x7ffd98d25130 sp 0x7ffd98d25120
READ of size 8 at 0x7ffd98d253f8 thread T0
    #0 0x5628e24bbe7a in rev (/out/package/lab4+0x14e7a)
    #1 0x5628e24b369d in main (/out/package/lab4+0xc69d)
    #2 0x7fc32916fb96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #3 0x5628e24b5c79 in _start (/out/package/lab4+0xec79)

Address 0x7ffd98d253f8 is located in stack of thread T0 at offset 536 in frame
    #0 0x5628e24b5e0f in rev (/out/package/lab4+0xee0f)

  This frame has 4 object(s):
    [32, 512) 'helper'
    [544, 1504) 'stack' <== Memory access at offset 536 underflows this variable
    [1536, 2496) 'arr2'
    [2528, 3488) 'stack1'
HINT: this may be a false positive if your program uses some custom stack unwind mechanism or swapcontext
      (lon

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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a * b = 70.910000, b - c  + a * f = 13932.010000
ans = -7062633.450000

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