Maybe you should be more cautious with your curiosity. It will give you bad consequences in the near future.

But as you have clicked in here, let me tell you about the three very important lessons that I learnt in contests:

1. Problem A is the easiest.

2. The last problem is the hardest.

3. Always be cautious with your curiosity (Yes, I am talking to you).

Do the three things above and you maybe become legendary grandmaster. Else you will drop (or stay!) in newbie forever.