DrMemory in "hack" mode

Revision en1, by Roman1, 2018-05-07 00:46:44

Hi

In the http://mirror.codeforces.com/contest/977 contest, there is substantial amount of solutions with errors like out-of-array-bounds or uninitialized memory reads. Many of them are accepted, as the errors don't lead to failure: layout of variables is "lucky enough".

Many of the solutions are currently marked as accepted. So, it is possible to try "hacking" them, i.e. to build a test case, which would reveal solution incorrectness.

In "custom test" mode (http://mirror.codeforces.com/contest/977/customtest), if compiler is in Diagnostics (DrMemory) mode, the errors are detected.

Question — how to "hack" solution in DrMemory mode, so that memory errors are detected in "hack" mode as they are currently detected in "custom test" mode?

History

 
 
 
 
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  Rev. Lang. By When Δ Comment
ru5 Russian Roman1 2018-05-07 16:21:03 2 Мелкая правка: ' детектируется. \n\nВ' -> ' детектируются. \n\nВ'
ru4 Russian Roman1 2018-05-07 01:15:54 2 Мелкая правка: ' или чтение неинициал' -> ' или чтения неинициал'
en2 English Roman1 2018-05-07 00:47:16 1 Tiny change: 'Hi\n\nIn the' -> 'Hi,\n\nIn the'
ru3 Russian Roman1 2018-05-07 00:46:59 1 Мелкая правка: 'ся в режим DrMemory,' -> 'ся в режиме DrMemory,'
en1 English Roman1 2018-05-07 00:46:44 771 Initial revision for English translation
ru2 Russian Roman1 2018-05-07 00:42:37 2 Мелкая правка: 'ory) ошибка детектиру' -> 'ory) ошибки детектиру'
ru1 Russian Roman1 2018-05-07 00:41:59 904 Первая редакция (опубликовано)