using the time function for srand in pseudo-random number generator in c - 


#include <time.h> ((unsigned)time(null));

i don't understand why have include time header file , use time function in program when creating pseudo-random number generator using function srand(). can please explain significance of time in case?

* please note code shown part of program. thank you.

it makes code non-repeatable when called second time. if include no seed or fixed number seed, program act same, because random number same.


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