Record Case Detail

Notes

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

Stderr

=================================================================
==12721==ERROR: AddressSanitizer: heap-use-after-free on address 0x602000000010 at pc 0x561351f2dbfc bp 0x7ffe416ea4e0 sp 0x7ffe416ea4d0
READ of size 8 at 0x602000000010 thread T0
    #0 0x561351f2dbfb in List<int>::copyFrom(List<int> const&) (/out/package/lab9_mem+0x10bfb)
    #1 0x561351f28d81 in case14() (/out/package/lab9_mem+0xbd81)
    #2 0x561351f1ee01 in main (/out/package/lab9_mem+0x1e01)
    #3 0x7f63924c6b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #4 0x561351f1f1d9 in _start (/out/package/lab9_mem+0x21d9)

0x602000000010 is located 0 bytes inside of 16-byte region [0x602000000010,0x602000000020)
freed by thread T0 here:
    #0 0x7f6392f189c8 in operator delete(void*, unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xe19c8)
    #1 0x561351f2db9c in List<int>::copyFrom(List<int> const&) (/out/package/lab9_mem+0x10b9c)

previously allocated by thread T0 here:
    #0 0x7f6392f17448 in operator new(unsign

Hints

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.

Your Answer

024
0

JOJ Answer

024
0
0
052