I take a lot of time to solve a question. If I invest hours to solve a problem sometimes it gets solved but other times it doesn’t and the entire time is wasted. Sometimes I have other subjects to study so I can’t invest time like that in long challenges.
Is there a method where I solve more questions faster?
Edit:guys thanks for answers but the point is practice is taking time. If i am solving codechef long challenge question for practice i am taking time. What should i practice?