Random functions are functions that generate numbers, and there are rand (), srand () and other functions in C language.

Usage is as follows:

# include & ltstdlib.h & gt

# include & ltstdio.h & gt

# include & lttime.h & gt

Invalid master (invalid)

{

int i，k；

Srand ((unsigned) time (empty)); //Initialize a random function with the system time as the seed.

for(I = 0； I< 10; i++)

{

k = rand()% 100； //Generate each random number

printf( " k=%d\n "，k)；

}

}