Random number in c++

Question

Hey can you guys please explain the use and working of srand((unsigned) time(0));
In generating the random number.
https://code.sololearn.com/cXfkOXjxCG6t/?ref=app

Answer 1

There are quite a number of threads detailing the use of srand, rand and time. Babak's answer in the first thread linked here is especially concise and informative:

https://www.sololearn.com/Discuss/742143/
https://www.sololearn.com/Discuss/960641/
https://www.sololearn.com/Discuss/1466867/

Answer 2

Please explain what seed actually means i am not getting it