Programming

int main (int argc, char *argv[])  
{ 
    
    int seed = time(0);
    sleep(10);
    srand(seed);    
    int i, nproc;
    nproc = atoi(argv[1]);
    pid_t child[nproc];
    
    int status;
    
    if (argc < 2)
    {
        fork(); // if no argument - only one child process is created
    }

    else
    {
        for(i = 0; i < nproc; i++) 
        {
            switch(pid = child[i] = fork())
                {
                    case -1:
                    perror("fork-error");
                    exit(1);

                    case 0:
                    printf("id = %d : RND = %d",i, (int)(rand()% 100 +1)); //generating random number for each child
                    exit(i);

                    default:
                    waitpid(child[i], &status, 0); //wait for the child to terminate
                    printf("Exiting %d = %d\n", i, WEXITSTATUS(status));
                    break;

                }
            
        }
    }    
    return 0; 
}