Record Case Detail

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

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==4806==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffc60e52238 at pc 0x559e7d7f45ed bp 0x7ffc60e51870 sp 0x7ffc60e51860
READ of size 8 at 0x7ffc60e52238 thread T0
    #0 0x559e7d7f45ec in divide (/out/package/lab5+0xa5ec)
    #1 0x559e7d7f6ccb in calculate (/out/package/lab5+0xcccb)
    #2 0x559e7d7f1bb2 in main (/out/package/lab5+0x7bb2)
    #3 0x7f55cf118c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
    #4 0x559e7d7f23f9 in _start (/out/package/lab5+0x83f9)

Address 0x7ffc60e52238 is located in stack of thread T0 at offset 2040 in frame
    #0 0x559e7d7f6a0f in calculate (/out/package/lab5+0xca0f)

  This frame has 5 object(s):
    [32, 512) 'help'
    [544, 1024) 'help2'
    [1056, 2016) 'stack'
    [2048, 3008) 'str2' <== Memory access at offset 2040 underflows this variable
    [3040, 4000) 'str3'
HINT: this may be a false positive if your program uses some custom stack unwind mechanism or swapcontext

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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JOJ Answer