title: Pascal - how sets work?
body: <p>I'm going to a high school programming competition tomorrow, and they use Pascal, about which I can't find much information on the internet, or if I do, I can't really understand it (English isn't my native language).</p>
  
  <p>It would be much appreciated if - someone who still remembers, would explain me: what is a set? Or, how would it look like in C programming language? I guess it's something related to arrays, but I'm not sure though.</p>
  
  <p>Thanks for help in advance!</p>