God dam

Question

Why the hell there isn't any way for TRULY random number without system time...
its stupid...

Answer 1

What he is telling you is that random numbers don't magically appear, there is always a method of how you're generating that "random" number.

Answer 2

thanks @ all, its a good question and interesting answers 👍😉

Answer 3

Even with system time the numbers generated are not truly random.

But to answer your question. It has to do with the algorithm used to generate said numbers. See the following article for more information.

https://en.m.wikipedia.org/wiki/Mersenne_Twister

Answer 4

A computer can not generate 'true' random numbers. You can get pretty close with hardware based number generators. (TRNG) These use 'noise' to create unpredictable results.

https://en.m.wikipedia.org/wiki/Hardware_random_number_generator

Answer 5

Ha!

Answer 6

It can if you come up with a working algorithm. Nobody has managed it yet. Personally, I'm not sure I could generate random numbers myself without a computer. I've never had a complaint about C's algorithm (C++ uses the same one.)

Answer 7

a rendering of your imprecation
https://m.imgur.com/gallery/JzmFuK5

Answer 8

thx

Answer 9

If you want a better random generator, use the <random> header for C++11 and above.

Answer 10

So you are telling me that pc can't random numbers?

Answer 11

interesting subject! you might find this website useful.
https://www.random.org

Answer 12

Good to know
Thanks