Nah, not in my opinion. Use whatever you want to solve the problems. Ultimately you have to submit an answer to the site for the day. Even then, if you go and

Nah, not in my opinion. Use whatever you want to solve the problems. Ultimately you have to submit an answer to the site for the day. Even then, if you go and look up solutions it's still up to you whether or not you call that cheating.