The following program will read from stdin with a timeout, which is what you want. #include <stdio.h> #include <unistd.h> #include <sys/select.h> #define LEN 100 int main() { struct timeval timeout = {3, 0}; fd_set fds; FD_ZERO(&fds); FD_SET(STDIN_FILENO, &fds); printf(“Hi. What is your name?\n”); int ret = select(1, &fds, NULL, NULL, &timeout); if (ret == -1) … Read more
One of the most fundamental things we have to do as programmers is to learn to break problems into smaller problems. You are actually running into a whole series of problems. I’m going to show you how to solve your problem. You may want to book mark this answer, because I’m pre-empting some problems you’re … Read more
You’re mixing up && and ||, so your first if will never run as mentioned in the comments. So it looks like the only “Not Weird” print out is 2, 4 and even numbers > 20. So use this to your advantage to just check for the “Weird” outputs, otherwise print “Not Weird”. if (n … Read more