I am doing competitive programming from last July. I find myself enjoying problem solving as a fun. I am trying to participate in every contest as possible. But the problem is I can't solve more than one or two easy problems (A or B (sometimes not B)) during contest time. Specially when I try to solve B or C, I get stuck with it! Usually, I can't find any clue! So, what'll be the suggestion for me as a beginner?