HELP- What is the function of "!!" in C++?

Revision en3, by aman_012, 2020-04-19 08:39:10

Hello,

I was going through one of tourist submissions and i came across this small piece of code and i am really curious to know what it does. Whole code:

76505406

Thanks in advance!

History

 
 
 
 
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  Rev. Lang. By When Δ Comment
en3 English aman_012 2020-04-19 08:39:10 14 Tiny change: 'ugh one of[user:tourist]'s submissio' -> 'ugh one of [user:tourist] submissio'
en2 English aman_012 2020-04-19 08:38:36 671
en1 English aman_012 2020-04-19 08:36:20 933 Initial revision (published)